Operating Instruction ZLND

uper Nov a SIHI S uperNov  Programme

Range: ZLND Volute casing pump complying with EN 733 / DIN 24255 * PUMP DESCRIPTION: ______________________________  SERIAL NUMBER: ____________________ 

Operating instructions Safety issues

Chapter 1

Safety instructions and compliance

Intended application

Chapter 2

 Application, description description

Planning the installation

Chapter 3

Requirements, Requirements, piping system, accessories

Unpacking, storage, transport

Chapter 4

Supply, interim storage, corrosion protection

Installing the pump

Chapter 5

 Assembly at site, site, tools, checks

Start-up and shut-down

Chapter 6

Important requirements

Maintenance, dismantling, assembly

Chapter 7

Intervals, cleaning

Troubleshooting

Chapter 8

If something does not work

Technical data

Chapter 9

Dimensions, permissible values

Annex

Chapter 10

Technical data, dimensions table, sectional drawings *

 With certain exceptions – see Technical Catalogue

Attention: Both the pump and/or the pump set must be installed and commissioned by qualified technical personnel only and these installation, commissioning and operating instructions must be strictly observed. Failure to do so could result in: • danger to you and your colleagues, • the pump or  the  the pump unit may be damaged , Note that the manufacturer is not liable for damages resulting from failure to observe these instructions. Please be aware of your responsibility to your colleagues when working on the pump or the pump set!

Safety instructions marked with included in this Operating Instructions and in the Supplementary Supplementary Operating Instructions, which must be attached to this Operating Instruction, have to be considered in particular when operating this pump in potentially explosive atmospheres! For local contact details: www. sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

�  (Sterling Fluid Systems BV) 2001

Safety issues

1.

Page 1 of 3

Safety

Chapter 1

• the identification plate

This operating manual gives basic instructions,

and that these are kept legible.

which must be observed during installation, operation and maintenance of the pump. It is

1.2 1.2

therefore imperative that this manual is read by

Qua Qualifi lifica cati tio on an and tr train aining ing of of personnel

the responsible personnel / operator(s) prior to

The

assembly and commissioning. It must always be

maintenance, inspection and assembly must be

kept available at the site of pump installation.

adequately qualified. The scope of responsibility

It is not only the general safety instructions

and supervision of the personnel must be exactly

contained in this chapter “Safety” which must be

defined by plant management. If the staff do not

observed,

have the necessary knowledge, they must be

but

also

the

specific

information

provided in the other chapters.

trained

personnel

and

performed

1.1 1.1

Ide Identif ntific icat atio ion n of safe afety symbols in the operating instructions

by

responsible

instructed. the

This

machine

for

task

operation,

may

manufacturer

be or 

supplier on behalf of the plant management. Moreover, plant management must ensure that the contents of the operation instructions are fully

Safety symbols are given in these operating

understood by plant operators and other relevant

instructions. Non compliance with these would

personnel such as maintenance staff.

affect safety and are identified by the following

1.3

symbol

Hazards in case of non compliance with safety instructions

Non compliance with the safety instructions may result in risk to personnel as well as to the Danger symbol as per DIN 4844-W9

environment and the pump/pump set and result in the loss of any right to claim damages.

(ISO 3864 - B.3.1)

For example, non-compliance may result from, or  Or in case of danger of electric current with:

lead to, the following:

• failure of important functions of the pump/pump set/plant

• failure of specified procedures of maintenance and repair  Danger symbol as per DIN 4844 W-8

• exposure of people to electrical, mechanical and chemical hazards

(ISO 3864 - B.3.6)

• danger to the environment owing to hazardous

The word

substances being released.

ATTENTION identifies those safety regulations where noncompliance may pose a danger to the pump and its function. It is imperative that the appropriate safety information is attached to the pump/pump set, for example:

• an arrow indicating the direction of rotation • symbols indicating fluid connections For local contact details: www. sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Safety issues

1.4 1.4

Page 2 of 3

Comp Compli lian anc ce wit with h re regula gulati tio ons relating to safety at work

When operating the pump the safety instructions

Chapter 1

operative again. Prior to re-starting the machine, the instructions listed under “first commissioning” are to be observed.

contained in this manual, the relevant national accident prevention regulations and any other 

1.7

service and safety instructions issued by plant

Safety instructions for the use in areas with explosion hazard

management must be observed.

1.5 1.5

Safe Safety ty inst instru ruct ctio ions ns rela relati ting ng to operation

• If high or low temperature pump/pump set components involve hazards, steps must be taken to avoid accidental contact.

• Guards for moving parts (e.g. couplings) must

In this section information is given for operation in areas where an explosion hazard exists.

1.7. 1.7.1 1 Comp Comple lete te pump pump sets sets

not be removed from the pump/pump set while

If the pump is combined with other mechanical or 

in operation.

electrical components in one set, the category of 

• Any leakage of hazardous (e.g. explosive,

the complete unit will correspond, based upon the

toxic, hot) fluids (e.g. from the shaft seal) must

Directive 94/9/EC, only to that category with which

be drained safely so as to prevent any risk to

all of its components comply.

persons

or

the

environment.

Statutory

Note:

regulations are to be complied with.

• Hazards from electricity are to be avoided by

These comments are of particular importance

VDE-

when pumps, which conform to a given category

specifications and the bye-laws of the local

of Directive 94/9/EC, are powered by a driver 

power supply utilities).

which is not in the same category.

the

user

(see

for

example

the

 Although the pump may bear the Ex sign, the set

1.6 1.6

Safe Safety ty inst instru ruct ctio ions ns rele releva vant nt for for maintenance, inspection and assembly work

should not be used in areas with an explosion hazard when the motor is not classified for this application.

It is the plant manegement’s responsibility to

This means that plant management personnel

ensure that all maintenance, inspection and

should always check that all elements of the set

assembly

work

is

comply with the Directive 94/9/EC.

personnel

who

have

performed

by

adequately

authorized familiarised

themselves with the subject matter by studying

1.7.2 Execution of coupling guards

this manual in detail.

Coupling guards that are to be used in areas with

 Any work on the machine must only be performed

an explosion hazard, have to fulfil one of the

when it is at a standstill. It is imperative that the

following criteria:

procedure

• consist of non-sparking material, e.g. brass.

for

shutting

down

the

machine

described in this manual is followed.

•

if they consist of sparking material, e.g. steel

Pumps and pump sets, which convey hazardous

sheet, they must be designed in such a way

media, must be decontaminated.

that the rotating parts will not come in contact

On completion of the work all safety and

with any part of the guard if errors, that could

protective guards must be re-installed and made

be foreseen, are committed by the user, e.g if  a person steps on the guard.

For local contact details: www. sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Safety issues

Page 3 of 3

Chapter 1

1.7. 1.7.3 3 Moni Monito tori ring ng techn technic ical al parameters

1.10 1.10 Warr Warran anty ty / gua guara rant ntee ee

When using pumps in areas with an explosion

operation if:

risk, the operator must check the following

•  the

Sterling Fluid Systems guarantee satisfactory pump

is

installed

and

operated

in

parameters regularly:

compliance with these instructions and in

• leakage of shaft seals

operating conditions approved by Sterling Fluid

• bearing temperature

Systems

filled with liquid during • that the pump is always filled operation

• modifications are only undertaken with Sterling Fluid Systems’ written agreement.

• that the pump does not operate against a closed valve for any length of time. The operator must ensure that pumps, which show evidence of abnormal operation, are switched off and not started again until the cause of the abnormal operation has been eliminated.

1.7.4 1.7.4 Avoidi Avoiding ng extern external al damage damage In areas with a risk of explosion the operator must ensure that the pumps and or pump set is not subjected to external impacts e.g by heavy objects.

1.8 1.8

Unau Unauth tho oriz rized alt alter erat atio ions ns and and production of spare parts

Modifications may be made to the pump/pump set only after consultation with,and written approval from, the manufacturer. Using spare parts and accessories authorized by the manufacturer are in the interests of safety. Use of other parts may exempt the manufacturer from any liability.

1.9 1.9

Unau Unauth thor oriz ized ed mode mode of ope operati ratio on

The reliability of the pump/pump set can only be guaranteed if it is used in the manner intended and in accordance with the instructions of this manual. The specified limit values must under no circumstances be exceeded.

For local contact details: www. sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Intended application

2.

Page 1 of 3

Application

2.3

The pump is to be used only for the operating

Chapter 2

Construction an and mo mode of  of  operation

conditions stated by the customer and confirmed

ZLND pumps are horizontal, single-stage volute

by the supplier. Guarantee is assumed within the

casing pumps with nominal outputs and flange

scope of the Sterling Fluid Systems conditions

dimensions meeting EN 733 / DIN 24255. Their 

of sale.

back pull out construction allows the disassembly

 Appropriate application and operating conditions

of the complete bearing unit towards the drive

are contained in the attached data sheets.

side without removing the pump casing from the pipework. ZLND pumps are preferably used when pure or 

2.1

Warning of misuse

turbid liquids, not containing solid particles, are to be handled. Impurities up to a grain size of 3 mm can be handled, but shorten the service life.

•

The pump may only be used for the application(s) stated. Otherwise hazards for  people and environment may arise.

ATTENTION •

Do not exceed fluid density stated. Otherwise, there is a the danger of motor  overload.

•

The pump must not be operated beyond its characteristic curve – otherwise there is a danger of cavitation and motor damage.

2.2

Accessories

The accessories included in the scope of supply are indicated in the delivery note or in the order  confirmation. The corresponding operating and installation instructions are also indicated in the  Annex relating to accessories. If it is intended to mount other accessories on the pump or on the pump set, please inform the manufacturer in advance in order that appropriate technical advice can be given.

For local contact details: www. sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

�  (Sterling Fluid Systems BV) 2001

Intended application

Page 2 of 3

Chapter 2

2.4 Description Type size

Shaft seal 041: Self-sealed, uncooled packing rings

Hydraulic + Bearing  A• First hydraulic B• Second hydraulic D• Double volute

052: Uncooled packing rings, external seal liquid 0C: Cast iron GG25, Bronze G-CuSn10 impeller  BJ3,C23,AF3,AX3,AY3,A93:SiC/Carbon, EPDM 0E: Cast iron GG25, BJS,C2S,AFS, AXS,AYS,A9S: SiC/ SiC, Viton Stainless steel 1.4408 imp.

•B Two ball bearings greased for life (2Z) • C Two ball bearings oil ZLND 32125 to 300500

Material design 0B: Cast iron GG25

BJJ,C2J,AFK,AXK,AYK,A9K: SiC/Carbon, Viton

lubricated

Casing gasket 2: confined flat gasket of EWP 210 material

4: confined flat gasket of PTFE

4B: Stainless steel 1.4408

•2   Oil lubrication configurations with CLO •S One double row angular contact bearing plus one ball bearing, grease lubricated •T One double row ball bearing plus ball bearing, oil lubricated

 Alternatively  A or B 32160, 32200  A 32125 to 200315, 250315 D 200400 to 300500

041,052,BJ3,C23,AF3,AX3,AY3,A93,BJS,C2S,  AFS,AXS,AYS,A9S,BJJ,C2J,AFK,AXK,AYK,A9K

 Alternatively

 Alternatively

0B, 0C, 0E, 4B

2, 4

 Alternatively B, C, 2, S or T

Codes AX3, AXS, AXK: are equivalent to AF3, AFS, AFK respectively plus quench Codes AY3, AYS, AYK: are equivalent to AF3, AFS, AFK respectively plus heating Codes A93, A9S, A9K: are equivalent to AF3, AFS, AFK respectively plus external flushing

For local contact details: www. sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

�  (Sterling Fluid Systems BV) 2001

Intended application

Page 3 of 3

Chapter 2

2.5

Example of a pump designation:

Shaft sealing

Depending on the application, different shaft 1-3

4

sealing executions are offered (see 2.4)

5-7 8-10 11 12 13-15 16-17 18

•

ZLND 125 250 A C 041 OB 2

a stuffing box with lantern ring (executions 041, 052, and optionally 051) or mechanical

Casing gasket

seals according to DIN 24960 are utilised in   Construction

the following cases:

S   haft sealing

•

if the pump draws from a suction line,

B   earings:B,C,S,T or 2

•

if the pump is fed by a feed line with a pressure of less than 0.5 bar or 

Hydraulic: A/B/D Impeller size

•

if the pumped liquid is at or near its boiling point.

Nominal discharge

Pump series

Provision of the sealing liquid is as follows:

•

041: Internal self sealing ISO 5199 plan 01

•

052: External self sealing ISO 5199 plan 08

•

051: External self sealing ISO 5199 plan 09

•

Mechanical seal: ISO 5199 plan 02. API plan 11

•

Mechanical seal execution plus external flushing: ISO 5199 plan 08, API plan 32 Mechanical seal execution plus quench: ISO 5199 plan 09. API plan 62.

ATTENTION Section 2.4  does not contain the codes for all variations of mechanical seals. Where the code is not included or replaced by QQQ, consult the relevant data sheet of the mechanical seal supplier (e.g. special execution of the mechanical sealing in a back to back position).

For local contact details: www. sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

�  (Sterling Fluid Systems BV) 2001

Planning the installation

Page 1 of 2

3.0

Planning the installation

3.1

Piping system

Chapter 3

Ensure that air pockets cannot be created. Unequal nominal widths of the suction branch and suction line must be compensated by eccentric

ATTENTION

transition pieces.

•

Note the arrows on the pump branches indicating the direction of flow.

•

Flow straightener 

Choose nominal widths of the pipelines according to the nominal widths of the pump branches or larger ones with the corresponding reductions.

•

Flange sealing must not protrude on the inside.

•

Ensure that the pipework is clean before Connection of eccentric pipe transitions

installing of the pump.

•

•

Support the pipework in order to avoid distortions at the pump components (risk of 

It is recommended that a filter is installed in front

damage to pump components)

of the pump with a filter surface of at least 3 times

Avoid abrupt changes of cross section and

the pipe cross section (approx. 100 meshes/cm²).

direction.

•

•

Where different diameter pipework is to be

The suction opening of the suction line should be

used, connection should be by eccentric

well below the liquid level, and a strainer should

transition pieces. This will avoid the formation

be used.

of air pockets in the pipework.

The strainer must be far enough from the bottom

For difficult pumping on the suction side, to

to avoid excessive inlet losses, which could impair 

stabilise the flow, a pipe length 15 times the

pumping performance. It is advisable to check that

diameter of the suction branch should be

there is no leakage.

installed before the suction branch.

•

7 6

The flow rate in the suction line or inflow line, must not exceed 2 - 3 m/s.

4

3

1

2

4

3.1.1 Suction line / inflow line See the sketches below for the optimum layout of 

1 Eccentric reducer ( suction line ) or 

pump installation for flow and suction lift

concentric reducer ( feed line ) 5

operation.

2 Shut-off valve 3 Suction line 4 Bend

Pump installation

5 Foot valve with suction strainer  6 Check valve 7 Regulating valve

positive suction head operation For local contact details: www. sterlingfluidsystems.com

suction lift operation In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Planning the installation

Page 2 of 2

Chapter 3

 A shut-off valve should be installed in the feed line. It must be closed for maintenance work. It should be installed in order to avoid air pockets forming in the spindle cap, i.e. with the spindle in a horizontal position or pointing vertically downward.

3.1.2 Discharge line For flow regulation, a valve must be installed behind the pump. If non-return valves are used, they should close smoothly. Pressure shocks must be avoided.

3.1.3 Inlet and outlet connections The various connecting points are shows in the drawings. (See Annex, Chapter 10, point 10.1).

3.1.4 Pressure control For consistent control of pressure, it is advisable to install in the pipework a measuring point in front of, and behind the pump.

3.2 Electrical connections For the drive motor a mains connection is required which complies with the European Regulations and Directives for the Standards in Industry and with the instructions of the local power supply utilities of the country concerned.

For local contact details: www. sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Unpacking, storage, transport

4.

Page 1 of 2

Unpacking, storage, handling

4.4

Chapter 4

Handling

The pump or pump set must be lifted and handled

4.1

Safety measures

as shown in the following sketches.

•

Never stay below the suspended load.

•

Keep a safe distance while the load is being transported.

•

Use only approved lifting appliances, which are in good condition.

•

Adjust the length of the lifting appliances in such a way that the pump and/ or the pump Pump without motor 

set, is suspended horizontally.

•

Do not use the eyebolts on the pump components for lifting the assembled pump or  the complete set.

•

Do not remove documents, which are attached to the pump.

•

Do not remove the protection covers from the pump suction/discharge. Otherwise, there may be a risk of contamination.

4.2

Unpacking

Before unpacking, a visual check of the packing is recommended. If transport damage is visible, the Pump set

extent should be noted on the receipt or on the delivery note. Potential claims must be lodged immediately with the carriers or the insurance

4.5

Protection against corrosion

In general, a protective coating is only applied to

company.

the following executions: OB, OC and OE.

4.3

Interim storage

If the pump or the pump unit is not installed immediately after delivery, it must be stored free from vibration in a dry room.

4.5.1 Removal of protective coating To remove the protective coating, the pump should be filled and drained several times using appropriate agents, e.g. solvent naphtha, diesel oil or alkaline detergent. Flush with water, if  necessary. The pump must be installed and started up immediately afterwards.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

�  (Sterling Fluid Systems BV) 2001

Unpacking, storage, transport

Page 2 of 2

Chapter 4

4.5.2 Renewing corrosion protection If the pump has been supplied with a protective coating and has to be stored, a new protective coating should be applied after six months. For suitable protective coatings, contact Sterling

Fluid Systems.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

�  (Sterling Fluid Systems BV) 2001

Installing the pump

Page 1 of 3

5.

Installing the pump

5.1

Requirements

Chapter 5

5.4.3 Base, foundation

The pump and the pump set, must have been

The pump must be installed on a flat floor or 

unpacked and handled as described in Chapter 4.

foundation free from vibration. In case of doubt use vibration dampening feet.

5.2

Use of trained staff 

The pump set must be correctly mounted on the

Only appropriately trained staff must undertake

foundations. To avoid distortion of the pump set

the work described in this chapter.

and/or the foundation, parallel shims must be used between the base plate and foundation.

5.3

Safety measures

Prior to installing, checks should be made with regard to: - possible damage to the pump or the pump set that may occur in transit - ease of running ( check that the shaft is free to rotate by hand )

•

• •

• •

Connect the pipework carefully to prevent the

- the foundation dimensions.

pumped liquid escaping during operation and

The following preparatory work must be carried

endangering operating personnel.

out before to placing the pump:

Ensure that the suction or inflow line, and the

- roughen and clean foundation surface

discharge line are closed by valves.

- remove shuttering/cores from the anchor 

Ensure that all electrical connections are

holes

“dead”. Otherwise, there is a risk of electric

- blow the anchor holes clean

shock.

- check the position and dimensions of 

Pay attention to relevant internal plant

the anchor holes against the arrangement

regulations.

drawing.

Avoid accidental contacts with hot

5.4.4 Installation of the set

components.

  ATTENTION

•

Remove the protective coating by following

The complete set mounted on the base plate must

the instructions of Chapter 4. Otherwise there

be placed on the foundation with its foundation

is a danger of contamination .

(rag) bolts hanging below the baseplate.

5.4.5 Space required 5.4

General information

The space required for the pump set is set out in the foundation plan or installation drawing.

5.4.1 Assembly tools

Ensure easy access to the shut-off and regulation

Special tools are not required for assembly and

valves as well as to any measuring instruments.

installation.

5.4.2 Permissible ambient conditions The ambient temperature can be from -20 °C to +60 °C. The atmospheric humidity should be as low as possible in order to avoid corrosion. For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

�  (Sterling Fluid Systems BV) 2001

Installing the pump

Page 2 of 3

Chapter 5

5.4.6 Position In principle the ZLND pumps are installed

half of the N-EUPEX B ( FLENDER ) coupling

horizontally.

must be 2 - 3 mm (see fig.). If other manufacturer’s couplings are used, follow the manufacturer’s instructions. After installation on the foundation and connecting the pipework, the coupling alignment must be checked and realigned, if necessary. Moreover, after reaching the operating temperature the alignment of the coupling must be checked again. The coupling requires a guard that meets DIN 31001 in order to avoid accidental contact during operation.

5.5

Motor  

In any event, the operating instructions of the

Before assembly check the direction of rotation of 

coupling manufacturer must be followed, since the

the motor (indicated by an arrow on the pump

coupling is a component incorporated by Sterling

casing). If this is not possible the direction of 

Fluid Systems. ruler 

rotation of the complete unit can only be checked only if the pump is filled. In any event, the operating instructions of the motor manufacturer must be followed, since the motor is generally incorporated by STERLING FLUID SYSTEMS into the pump set.

5.6

Alignment of the set

Place shims under the base plate on both sides of 

The following is required a = a1 and b = b1

the foundation bolts, 10 mm from the base plate edge. Use a spirit level to align the set. If necessary, place shims between the foundation bolts to prevent the base plate from sagging. Care should be taken to minimize distortion of the base plate during installation. The location of the driver  must not be higher than that of the pump. The max. deviation from the shaft centre line is ± 0.1 mm. The foundation bolts should be embedded in

5.8

Before installing the pump on the plant, the following points must be checked: 1.

is the electrical current to the drive motor  switched off?

2.

are suction and discharge lines emptied and closed by valves?

3.

Is it possible to rotate the pump easily by hand (for this purpose turn the fan of the

concrete using quick-setting grout.

5.7

Checking before installation

motor or the coupling)? 4.

Coupling

Install the coupling avoiding hard blows, if 

Have the latest internal/plant instructions been observed?.

necessary in warm condition. Arrange the pump and motor on a level base. The shaft ends must be aligned exactly. The distance between each For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

�  (Sterling Fluid Systems BV) 2001

Installing the pump

5.9

Page 3 of 3

Chapter 5

Mounting the pump and installation into pipework

The following instructions must be carried out: 1.

remove the protective covers from the pump flanges and the auxiliary pipework connections.

2.

correctly insert the flange seals.

3.

connect the suction or feed line.

4.

connect the discharge line

The pump must be aligned with the pipework. The pipework must be supported so that distortion cannot occur when connecting the pump.

5.10

Final work

The following final steps must be undertaken: 1.

check the tightness of the connecting flanges.

2.

check for easy running of the pump (for that purpose turn the motor fan or the coupling).

3. check the coupling alignment. 4. install the coupling guard.

5.11

Hydrostatic pressure test

When subjecting the piping system to a hydrostatic pressure test, exclude the pump from the pressure test. If it is not possible to test the pipework without the pump, ensure that foreign material cannot enter  the pump.

• 

The max. permissible pressure for a pressure test is 1.3 times the nominal pump pressure.

•

The nominal pump pressure is indicated in the technical data sheet.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

�  (Sterling Fluid Systems BV) 2001

Starp-up and shut-down

6.

Page 1 of 3

Chapter 6

Start-up and shut-down operations

6.1

Requirements •

The pump or the pump set, must be installed acc. to the instructions of Chapter 5.

If there is no bypass line, do not run the pump with the control valve closed for any length of time.

6.2

Use of trained staff 

•

Safety measures should be taken by the

Only appropriately trained staff must carry out the

end user to ensure (for example by

work described in this chapter.

means of a relief valve) that the permissible pump casing pressure is not

6.3

Safety measures

exceeded during operation

•

Repeat the alignment of the coupling at operating temperature. Re-align the pump or the motor, if necessary.

•

Electrical connections must be made

6.4

Electrical connection

according to the European Regulations and

The motor must be connected at set out in the

Directives for the Standards in Industry and in

circuit diagram in the terminal box.

compliance with the instructions of the local

•

power supply utilities of the country

6.5

Checks before switching-on

concerned.

Before switching on the pump unit, the following

Only appropriately authorized personnel may

points should be checked:

carry out this work.

1.

is all pipework connected and are the unions tight?

  ATTENTION

2.

is the pump including the pipework filled properly?

•

Fill the pump correctly; otherwise the shaft

3.

seal could be destroyed.

closed?

•

Fill the supply lines correctly.

•

Check the direction of rotation only when the

•

•

•

is the shut-off valve in the discharge line

4.

is the shut-off valve in the suction line completely opened?

pump is filled.

5.

is the motor ready for operation?

Fill the pump slowly if hot media are being

6.

is the direction of rotation of the motor 

pumped in order to avoid distortions or heat

correct?

shock.

(check by running the motor for a short time)

When handling explosive, toxic, hot,

7.

is the coupling aligned exactly?

crystalline or corrosive media, ensure that

8.

has the shaft seal been installed?

there is no risk to people or the environment.

9.

are the supply lines, if any, to the shaft seal

Control the output at constant speed at the discharge side only. The valve at the suction side must always be completely open during operation to avoid the risk of cavitation.

For local contact details: www. sterlingfluidsystems.com

open? 10. in the case of oil lubrication - has the bearing housing been correctly filled with oil? 11. is the gland finger slightly tight?.

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems) 2001

Starp-up and shut-down

Page 2 of 3

Chapter 6

6.7

Switching frequency

Size

Fasten gland nuts

6.6

Start-up operation

For starting proceed as follows:

Permissible number of   starts equally spaced per hour 

32-125, 32-160, 32-200, 32-250, 40-125, 40-160, 40-200, 40-250, 50-125, 50-160, 50-200, 65-125, 65-160, 65-200, 65-250, 80-160, 80-200, 80-250,100-160, 100-200, 100-250, 100-315, 125-200, 150-200, 150-250 40-315, 50-250, 50-315, 65-315, 80-315, 80-400, 100-400, 125-250, 125-315, 125-400, 150-315, 150-400, 150-500, 200-250, 200-315, 200-400, 200-500, 250-300, 250-315, 250-400, 250-500, 300-400, 300-500

15

8

1.

open fully the valve on the suction side

2.

close the valve on the discharge side

3.

switch on the motor 

4.

check the pressure gauges at the pressure

6.8

measuring points

During operation the following points must be

Special instructions

If the pumping pressure does not increase

observed:

consistently with increasing speed, switch off the

- control the speed and the delivery head

motor again and vent the pump one more.

- ensure that the pump runs without vibration

5.

- control the liquid level in the suction line and/or 

After reaching operating speed, regulate the operating point of the pump by adjusting the valve in the discharge line (see technical data for permissible range of operation).

6.

For “running in” the packing, the gland should

inflow tank - control the bearing temperature (max. temperature 100 °C) - control the pressure in the supply lines according

be tightened only slightly (even in the case of 

to the following limits:

considerable leakage initially). After approx.

External flushing:

30 minutes tighten the gland to such an extent

•

Buffer pressure = pW +   0,5 bar 

that it leaks only slightly. Check it several times, until leakage from the packing is about

•

Rest of impeller sizes: Buffer pressure = pW +   H + 2,5 bar 

20 to 40 drops a minute. In extreme operating conditions and high temperatures this rate

Impeller size 125

•

3

Flow = 0,1 – 0,2 m /h pW =   suction pressure, in bar

may be higher.

H = differential pressure of pump, in bar  Pumping against a closed valve in the discharge line is permitted only if a minimum output via a

Quench

bypass line is guaranteed.

Maximum pressure = 4 bar  Heating  Maximum pressure = 4 bar, with water steam to 140

For local contact details: www. sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

C

�  (Sterling Fluid Systems) 2001

Starp-up and shut-down

Page 3 of 3

Chapter 6

- shaft seal Executions with stuffing box: For correct operation of the shaft seal a slight leakage (20 - 40 drops per minute) is essential. If  the leakage is reduced too much by retightening the packing, it will be destroyed.

When handling explosive, toxic, hot, crystalline or 

If the pump is equipped with code 052 or code

corrosive media, ensure that people and the

051, the supply lines to the stuffing box have to be

environment are not endangered. Even if the

open before the pump is started.

pump has been drained using the threaded plug

Executions with mechanical seal:

90.30, residues can remain in the pump. For 

During running-in slight leakage may occur. If the

transport, the pump must be free from any

pump is equipped with an external flush, quench

dangerous material. In case of extended periods

or heating, the flush, quench or heating supply

out of service, protect the pump against corrosion.

has to be switched on before the pump is started. The mechanical seal must be allowed to cool before the next re-start.

ATTENTION For executions with stuffing box: If the leakage increases considerably and cannot be adjusted by retightening the gland, the packing is worn and must be replaced by a new one. For executions with mechanical seal: If the initial leakage does not disappear within 5 minutes of  operation, stop the pump, dismantle the seal and check for damage of the seal faces and auxiliary sealing.

6.9

Shutting-down

Before shutting down close the valve on the discharge side.  After shutting down, all valves may be closed. The valves of the auxiliary pipework connections, (quench, heating, external flush, code 052, code 051), have to be closed in the last place. If there is a risk of very low ambient temperatures, remove the pump and then drain it using the threaded plug 90.30.

For local contact details: www. sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems) 2001

Maintenance, dismantling, assembly

Page 1 of 10

Chapter 7

7. Maintenance, dismantling, assembly 7.1

g   rease nipple

Requirements

The pump or the pump set must have been shut down in the manner described in Chapter 6.

7.2

Use of trained staff 

Only appropriately trained and skilled staff should

Grease lubrication:

undertake the work described in this chapter.

The bearings receive their first engreasing at the

Only authorised personnel must undertake electrical work associated with maintenance of the pump/pump set.

7.3

supplier plant. Grease amount per ball bearing: bearing housing 55: (shaft end diameter at the driving side 50 mm)

Safety measures

30 gramme

bearing housing 65: (shaft end diameter at the driving side 60 mm) lubrication intervals

•

40 gramme

low activity

middle and high activity

for grease

n ≤ 1 500 1/min

1500 < n ≤3   000 1/min

lubrication

every 5000 hours

every 2500 hours

For explosive, toxic, hot, crystalline as well as

at the latest after 12 months

different pumping media ensure that people

• • •

and the environment are not endangered.

 After about 10000 hours of activity or the latest

Flush the pump with clean liquid before

after

dismantling.

disassembled, washed and refilled with grease.

The working place for disassembly or 

Under extremely unfavourable circumstances (wet

assembly must be clean.

or dusty environment or high temperatures of the

Before reinstallation, the pump must be free of 

environment) the lubrication intervals have to be

any dangerous material.

chosen considerably shorter.

two

years,

the

bearings

have

to

be

For renewing or adding lubrication grease, only

7.4

Maintenance and inspection

The pump requires only limited maintenance.

7.4.1

lithium soap bearing grease have to be utilised (e.g. Mobilux 2, Shell Aero Grease 16, Esso Unirex N3).

Bearing with grease lubrication

The pumps with bearing brackets 25, 35 and 45 use an antifriction bearing, lubricated for service life, on the drive side and on the pump side. The pumps with bearing brackets 55 and 65 must be greased through grease nipples 63.60.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Maintenance, dismantling, assembly

7.4.2

Bearing with oil lubrication

Page 2 of 10

Chapter 7

Oil change intervals

The pump is supplied empty (no oil). Before the

If the bearings are new, change the oil after about

initial start up, pour oil into the oil inlet hole until

200 hours and subsequently annually. These

the oil level reaches the mark on the dipstick.

intervals only apply if the bearing temperature does not exceed 50 ºC. If the bearing temperature during operation is above 50 ºC but below 80 ºC and/or if there is danger of contamination, the oil

Oil filling

should be renewed about every six months. Oil properties: Operating temp. of  bearing up to 80ºC n>1500 n≤1500 rpm rpm

 Ambient temp. < 0ºC

CL68

CL46

CL22

at 50ºC in mm /s

61.2 to 74.8

41.8 to 50.8

19.8 to 24.2

 As an additional accessory, it is possible to

Neutralisation figure  Ash ( as Ash Oxide ) Water content

Maximum 0.15 mg KOH/g Maximum 0.02% weight Maximum 0.1% weight

connect a constant level oiler. In this case, the

Suitable motor oil

SAE 20 and 20W

Type of lubrication DIN 51517

t Kinematic viscocity 2 Oil drainage

Constant level oiler 

SAE 10W

bearing support must be filled with oil through the oil inlet hole, until the oil is visible in the screw-in elbow, the oil reservoir having been removed. Subsequently the oil reservoir should be filled with

Oil quantities: BearingBracket

Oil ( litre )

oil and put into its correct position.

25

0.22

The bearing housing will be supplied with oil from

35

0.38

the constant level oiler with the correct amount as

45

0.57

long as there is oil in the reservoir.

55

1.50

See sketch of oiling system below

65

2.00

1.

Oil reservoir 

2.

Screw-in elbow

3.

Fill in oil here

4.

Never fill with oil here, always use the oil inlet

The lubricating oil must be extremely pure,

hole.

resistant to ageing, must have good viscosity-

 ATTENTION

temperature behaviour, good water separating properties and corrosion protection.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Maintenance, dismantling, assembly

Page 3 of 10

Chapter 7

7.4.3 Stuffing box

 7.4.4 Mechanical seal

If leakage makes it necessary, the packing rings

The mechanical seal should have little or no

should be retightened. After extended periods and

visible leakage. Where there is considerable

frequent retightening, the packing rings gradually

leakage, check the mechanical seal. To do this, it

lose their shape and elasticity. We therefore

is necessary to dismantle the rotating part(s).

recommend replacing the packing material at

43.30

16.10

50.40

21.10

regular intervals. As a typical indication, after an operating time of approx. 2500 hours or when the gland has been retightened by approximately half  the width of a packing ring. Repacking When repacking, the stuffing box rings used up, as well as, the lantern ring are to be removed carefully from the shaft seal chamber. The shaft and shaft protection sleeve must not be damaged.

 7.4.5 Drive motor 

Otherwise perfect sealing cannot be guaranteed

The drive motor must be maintained according to

and the shaft sleeve would then need replacing.

the instructions of the manufacturer.

If the pump is installed, cut soft packing rings diagonally, bend them in a spiral shape, position them on the pump shaft and bend them carefully

7.5

Dismantling

into a ring form. Push the packing rings as well as the lantern ring

7.5.1 Preparation for the dismantling

by means of the gland into the shaft seal chamber. The cut joints should be staggered by

Proceed as follows:

180°. Tighten the nuts at the gland steadily until

•

disconnect power to the motor 

resistance is felt when rotating the pump shaft by

•

drain the plant, at least within the pump area,

hand. Remove the gland again and fasten the

i.e. between the valves on the suction- and

nuts slightly. If the pump is removed in order to

discharge side

carry out repacking, it is useful to push the

•

probes or control devices and remove them

packing rings in the delivered condition, that means closed over the shaft sleeve.

if necessary, disconnect any measuring

•

drain liquid from the pump by means of the drain plug

Lantern ring

•

dismantle shaft seal supply lines, if any.

If oil lubricated bearings are used, drain the oil from the bearing housing.

•

the pump casing must not be detached from the pipe union

• Packing rings

remove motor mounting bolts and move the motor so that there is sufficient space to remove the back pull out unit. When using a spacer coupling repositioning of the motor is not necessary.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Maintenance, dismantling, assembly

•

Page 4 of 10

Chapter 7

dismantle guard coupling, pump feet and

Design with stuffing box

coupling.

1. Remove the Allen head screws 91.40 and

7.5.2 Replacement parts

detach the casing cover 16.10.

The item numbers necessary for ordering spare

1.

Detach hexagonal nuts 92.01 and studs

parts are provided in the component parts list in

90.21.

the Annex.

2.

Loosen hexagonal screws 90.23 and detach packing housing 45.10 and gland 45.20 with

7.5.3 Dismantling the pump •

the pressure ring 45.70.

For executions with bearing housings 25,35

3.

Detach packing ring 46.10 and lantern ring

and 45.

45.80. 10.20

40.00

90.10

4.

Detach the shaft sleeve 52.40. .

.

.

46.10

45.80

.

92.01

.

45.20

90.21

.

.

55.40

92.01

90.30

Design with a mechanical seal 1.

Mark the position of the parts in relation to each other by a coloured pencil or a scribing

1.

Detach the distance ring 50.40.

tool.

2.

Remove the rotating part of the mechanical

2.

Remove the hexagonal screws 90.10.

3.

Remove the back pull out unit from the volute

seal 43.30. 3.

detach the casing cover 16.10.

casing 10.20. .1

Remove the Allen head screws 91.40 and

.1

.

.

.

. 1

.

.

.

68.10 90.13

4.

Remove flat gasket 40.00.

5.

Remove hexagonal screws 90.13 and remove protective screen 68.10.

6.

Loosen impeller nut 92.20.

7.

Remove impeller 23.00 and key 94.01.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Maintenance, dismantling, assembly

Page 5 of 10

Chapter 7

Design with quench (AX3, AXS, AXK)

Bearing design B, C or 2 :

Detach the cover 16.50, O-ring 41.23 and lip

1.

seals 42.11.

Release hexagonal screws 90.11, remove V-seal 42.20 in case of grease lubrication, dismantle bearing cover 36.00 and flat gasket

16.10

.

.

40.02. Remove the lip seal 42.10 if pump is oil

.

lubricated. 2.

Release the thrower 50.70

3.

Undo hexagonal screws 90.12, remove washer 93.01 and dismantle the pump foot 18.30.

4.

For oil lubricated pumps, remove the oil dip stick 91.60 and remove the constant level oiler (CLO) 63.80 if any.

Design with heating (AY3, AYS, AYK)

0.70

42.20

42.10

33.00

91.60

40.02

42.10

36.00

90.11

42.20

94.00

Detach the cover 16.50, O-rings 41.22 and 41.23. 16.10

41.22

41.23

16. 50 18.30

5.

93.01

90.12

Pull out complete shaft 21.00 with both ball bearings 32.10 and support washers for ball bearing 50.50 if any.

6.

Remove ball bearings 32.10 and support washers for ball bearing 50.50.

2.10

4.

50.50

21.00

50.50

32.10

Remove the static part of the mechanical seal 43.30 and pin 56.10. 43.30

16.10

56 .10

•

For executions with bearing housings 55 and 65: 10.20

For local contact details: www.sterlingfluidsystems.com

90.20

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

40.00

90.80 92.00 92.06

�  (Sterling Fluid Systems BV) 2001

Maintenance, dismantling, assembly

1.

Page 6 of 10

Chapter 7

Mark the position of all parts with a colour pen

Design with a mechanical seal:

or scribing tool in order to be able to

1.

Loosen hexagonal screws 90.24 and withdraw

reassemble the pump correctly.

the mechanical seal cover 47.10 with the flat

2.

Unscrew hexagonal nuts 92.00.

gasket 40.06, static part of the mechanical

3.

Withdraw pull out assembly from the volute

seal 43.30 with pin 56.10.

casing 10.20. Withdraw the flat gasket 40.00.

2.

Remove the shaft sleeve 52.30 with the

The wear ring 50.20, if it is necessary can be

distance ring 50.40, the rotating part of the

removed.

mechanical seal 43.30 and the flat gasket

92.20 93.00

40.01. 40.03

23.00

94.01

16.10

90.22

92.02

3.

Loosen grub screw 56.00.

4.

Detach the pin 56.00 and then, the wear ring 50.21.

40.01

4.

Loosen impeller nut 92.20 and helicoil 93.00.

5.

Remove impeller 23.00, key 94.01 and flat

52.30 50.40 43.30

16.10 90.22 40.06 47.10

56.00 50.21

56.10 90.24

gasket 40.03. Unscrew hexagonal nuts 92.02 and detach the casing cover 16.10.

Design with a stuffing box: 1. 2. 3.

Remove hexagonal nuts 92.01 and studs

Bearing design S or T :

90.21.

1.

Release the thrower 50.70

Detach the gland 45.20, the packing ring

2.

Release hexagonal screws 90.11 and 90.14,

46.10 and the lantern ring 45.80.

dismantle bearing covers 36.00, 36.01 and flat

Detach shaft sleeve 52.40 and flat gasket

gaskets 40.02. Remove the lip seals 42.10.

40.01. 4.

3.

Release hexagonal screws 90.12, remove

Detach the pin 56.00 and then, the wear ring

washer 93.01 and dismantle the pump foot

50.21

18.30. 16.10 90.22

46.10 45.80

45.20 40.01

52.40

4.

For oil lubricated pumps, remove the plug 67.20 and the constant level oiler (CLO) 63.80 if any.

0.14 36.01 63.60

42.10

40.02

50.70

33.00

18.30

56.00

50.21

90.21

For local contact details: www.sterlingfluidsystems.com

55.40

93.21

93.01

40.02

42.10 36.00 63.60

90.12

92.01

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

94.00 90.11

Maintenance, dismantling, assembly

5.

Page 7 of 10

Pull out complete shaft with both ball bearings 32.10 and 32.11 and circlip 93.21.

Chapter 7

7.7 Assembly 7.7.1 Tightening torque When tightening the bolts the following torques

32.11

7.6

21.00

93.21

32.10

Post dismantling activities

must be used:

Thread

M8

M10

M12

M16

M20

M24

M30

M36

Torque

12

25

40

90

175

300

500

700

Nm

Nm

Nm

Nm

Nm

Nm

Nm

Nm

7.7.2 Pump assembly Proceed as follows:

7.6.1 Hints for cleaning.

Bearing design B, C or 2 :

•

Clean all parts.

•

•

Clean the clearances and sealing surfaces

and 45: 1.

with an appropriate liquid.

For executions with bearing housings 25,35 Prior to installing bearings, the support washer for ball bearing 50.50 must be

7.6.2 Points to be checked

replaced, (only bearing housing 25). Install

The following pump components, if installed, must

ball bearings (use new ball bearings, if 

be checked:

necessary). Before installation, the ball

•

Mechanical seal :  If the running faces are

bearings must be heated to 80ºC in an oil

damaged or worn, replace the mechanical

bath.

seal.

(Only bearing design C or 2).

•

•

Shaft and shaft sleeve :  Check the shaft

2.

For a pump with oil lubrication, using a tool,

within the stuffing box. If the shaft has worn

press lip seal 42.10 in the bearing housing

badly and is grooved, a new shaft or shaft

33.00. When lip seals are used, the lip should

sleeve should be used.

point towards the drive end.

Clearances :  The difference in diameter 

32.10

50.50

21.00

50.50

3.

Insert the shaft assembly into the bearing

32.10

between impeller clearance area and casing or cover clearance area should be 0.3 mm to 0.5 mm. In the case of excessive wear in the clearance area, wear rings must be installed.

•

Radial seal ring  : If the radial seal ring is damaged, it must be replaced.

housing from the drive end towards non-drive end.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Maintenance, dismantling, assembly

4.

Page 8 of 10

Chapter 7

• For executions with mechanical seal:

Attach the bearing cover 36.00, with its radial seal inserted, if it is oil lubricated, and the flat gasket 40.02;( the lip of the radial seal ring

7.

Insert the static part of the mechanical seal

should point towards the non drive end). Then

43.30, with the pin 56.10 if any, in the casing

fasten hexagonal screws 90.11. In case of 

cover 16.10.

grease lubrication, mount the V- seals 42.20 43.30

in the shaft and lean one against the bearing

16.10

56 .10

housing 33.00. Insert the key 94.00. 5.

Insert the oil dip stick 91.60 and the CLO 63.80 if any. 0.70

42.20

42.10

33.00

91.60

40.02

18.30

6.

93.01

42.10

36.00

90.11

42.20

94.00

90.12

Fasten pump foot 18.30 and insert the thrower  50.70. Design with quench (AX3, AXS, AXK)

• For executions with stuffing box:

Insert the lip seals 42.11 and the O-ring 41.23 in the cover 16.50.

7.

Position the shaft sleeve 52.40 on the shaft.

8.

Insert the packing housing 45.10 with the

6.10

41.23

42.11

16 .50

gasket 40.05 in the casing cover 16.10. 9.

Install one of the packing rings 46.10 in the packing housing, the lantern ring 45.80 and then, the remaining packing rings.

10. Fasten hexagonal screws 90.23 , fix the studs 90.21 and hexagonal nuts 92.01. 16.10

40.05

45.10

90.23

52.40

45.70

 Attach the cover 16.50 and casing cover 16.10. 16.10

46.10

45.80

92.01

45.20

1 6 . 50

90.21 55.40 92.01

11. Finally, install the pressure ring 45.70 and the gland 45.20. Fix the washer 55.40 and the following hexagonal nuts 92.01. 12. Adjust the stuffing box as described in Chapter 7.4.3. For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Maintenance, dismantling, assembly

Page 9 of 10

Design with heating (AY3, AYS, AYK)

Chapter 7

10.20

40.00

90.10

Insert the O-rings 41.22 and 41.23 in the cover  16.50. 16.10

41.22

16. 50

41.23

90.30

Bearing design S or T :

 Attach the cover 16.50 and casing cover 16.10.

• For executions with bearing housings 55 and 65:

16.10

16.50

Carry out the following steps: 1.

Fit the shaft unit.

2.

If the shaft is to be fitted with new bearings, they should be heated in an oil bath to a temperature of 80º C before assembling. First, install the ball bearing 32.11, then the circlip 93.21 and finally ball bearing 32.10. Make sure that the bearing is pressed home against the shoulders of the shaft.

3.

If the lip seals have been removed, they must be exchanged. The lip seals should be fitted into the bearing cover with a bush, pressing

8. 9.

Attach the bearing housing 33.00 and the

on the external ring of the oil seals. The lips

casing cover 16.10.

should point towards the bearing after 

Insert the rotating part of the mechanical seal

installation. Pay attention to the bearing

43.30 and the distance ring 50.40.

covers to avoid fitting them incorrectly.

10. Insert the key 94.01, impeller 23.00 and 2.11

tighten the impeller nut 92.20. Attach the

21.00

93.21

32.10

protective screens 68.10 with the hexagonal screws 90.13. 90.13 68.10

9 2. 20

2 3. 00

94.01 50.40

43.30

16.10

33.00

91.40

4.

Install the bearing cover of the pump side with the flat gasket 40.02 and the grease nipple

68.10 90.13

11. Insert the gasket 40.00 between the pull out

63.60 if any.

unit and volute casing. Tighten hexagonal screws 90.10. For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Maintenance, dismantling, assembly

5.

6.

Page 10 of 10

When fitting the rotating unit in the bearing

• For executions with mechanical seal:

housing 33.00, the circlip 93.21 must be

9.

the mechanical seal stationary part 43.30 and

Insert the bearing cover 36.01 with the flat

its pin 56.10 if any, then place the flat gasket

gasket 40.02 and the grease nipple 63.60 if 

40.06 and hexagonal screws 90.24. 10. Insert the shaft sleeve 52.30 with the rotating

Mount the plug 67.20, the oil level sight glass

part of the mechanical seal 43.30 and the

64.20 and the constant level oiler ( CLO )

distance ring 50.40.

63.80, where oil lubrication is used. 8.

Install the mechanical seal cover 47.10 with

inserted in the groove in the bearing housing.

any. 7.

Chapter 7

11. In the casing cover 16.10, insert the wear ring

Fasten pump foot 18.30 and insert the thrower 

50.21 with grub screws 56.00 and the studs

50.70.

90.22.

0.14 36.01 63.60

42.10

40.02

50.70

33.00

18.30

93.21

93.01

40.02

42.10 36.00 63.60

94.00 90.11

40.01

52.30 50.40 43.30

16.10 90.22 40.06 47.10

56.00 50.21

56.10 90.24

90.12

• For executions with stuffing box: 9.

Mount the shaft sleeve 52.40 on to the shaft unit.

10. In the casing cover, insert one of the packing rings 46.10, the lantern ring 45.80, the remaining packing rings and finally the gland 45.20.

12. Join the casing cover 16.10, the bearing housing 33.00 and fasten hexagonal nuts 92.02. 92.20 93.00

40.03

23.00

94.01

16.10

90.22

92.02

11. Fix the studs 90.21, the washers 55.40 and the nuts 92.01. Adjust the stuffing box as described in Chapter 7.4.3. 12. Mount the wear rings 50.21 with grub screws 56.00. 16.10 90.22

46.10 45.80

45.20 40.01

52.40

Finally: 13. Insert the flat gasket 40.01, keys 94.01, impeller 23.00 and flat gasket 40.03. 14. Tighten the impeller nut 92.20 with the helicoil 93.00. 15. Insert the wear ring 50.20 with grub screws 56.00 and then, insert studs 90.20. 56.00

50.21

90.21

55.40

92.01

16. Insert flat gasket 40.00 between the unit and the volute casing 10.20. Tighten hexagonal nuts 92.00.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Troubleshooting

Page 1 of 1

8.

Help in case of trouble

8.1

Use of trained staff 

Chapter 8

Trouble shooting must be undertaken only by appropriately trained personnel.

8.2

Symptoms, causes and remedies

Symptom Output too low

Cause - Back pressure too high. - Pump or pipework, resp., not completely   filled. - Suction lift too high or positive suction head too low.

- Sealing gap too large because of wear. - Wrong direction of rotation. - Casing or suction line leaks.

Pump does not prime or only intermittently

- Pump casing, shaft seal, foot valve or  suction line leaks. - Suction lift too high or positive suction head too low.

Pump leaks

- Loose or jammed parts in the   pump. - Casing bolts not correctly   tightened. - Mechanical seal leaks.

- Stuffing box leaks.

Temperature of the pump increases

- Seals defective. - Pump or pipework not completely filled. - Suction lift too high or positive suction head too low.

Pump runs noisily

- Stuffing box overtightened. - Pump is run against closed valve. - Pump or pipework not completely filled. - Suction lift too high or positive suction head too low.

Motor protection switch switches off.

- Pump is not properly levelled or is   distorted. - Foreign material in the pump. - Pump is not properly levelled or is   distorted. - Operating conditions outside of  performance range of pump. - Loose or jammed parts in the pump.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

Remedy Check the plant for contamination. Regulate anew the operating point. Vent and fill the pump as well as the suction or inflow line. Check the liquid levels, open the shut-off  valves on the suction side. Clean the filters and dirt traps installed on the suction side. Replace worn parts. Change the motor connection. Replace the casing seal. Check the flange connections. Replace the casing seal. Check the shaft seal. Check the flange connections.. Check the liquid levels, open the shut-off  valves on the suction side. Clean the filters and dirt traps installed on the suction side. Open and clean the pump. Check the tightening torque of the casing bolts. Check the seal surfaces and elastomere of   the mechanical seal. In case of damages exchange mechanical seal. Check the condition of the stuffing box. If   possible, retighten the stuffing box, if not, replace it. Replace the seals. Vent and fill the pump as well as the suction line or inflow line. Check the liquid levels, open the shut-off  valves on the suction side. Clean the filters and dirt traps installed on the suction side. Loosen the stuffing box. Open the shut-off valve on discharge side. Vent and fill the pump as well as the suction line or inflow line. Check the liquid levels, open the shut-off  valves on the suction side. Clean the filters and dirt traps installed on the suction side. Check the pump installation Dismantle and clean the pump. Check the pump installation. Refer to pump operating conditions stated in technical data. Open and clean the pump.

�(  Sterling Fluid Systems BV 2001)

Technical data

9.

Page 1 of 3

Chapter 9

Technical Data

For technical information about the pump or pump

Direction of rotation:

set, which is not described in this chapter, see the

Clockwise seen from the drive end of the pump.

specific data sheet. Note that data relating to a

Materials of construction, and of shaft seals:

specific order may conflict with information

See Chapter 2.4.

provided here. In any such case, the order 

Vibrations:

specific information will override data provided in

ZLND range pumps comply with VDI 2056 and

the general technical documentation.

ISO 5199 Class K for pumps with a driving power 

Pressure component operating limits:

of up to 15 kW and Class M with a driving power  of more than 15 kW

Material 4B

Temperature -40ºC to 120ºC

Pressure 16 bar

Sizes All

Noise levels:

120ºC to 170ºC

14 bar 16 bar  10 bar  14 bar  14 bar  9 bar  8 bar 

All 32125 to 80315 80400 to 300500 1   50500 32125 to 80315 80400 to 300500 150500

Directive 001/30 - 1992 of the EUROPUMP

-20ºC to 120ºC 0B/0C/0E 120ºC to 170ºC

The noise levels of the pump comply with the Commission. The following table provides approximate values:

Shaft sealing operating limits:

LWA (dB)

Shaft sealing execution 041, 052 BJ3, BJS, BJJ  AF3, AX3, AY3, A93  AFS,AXS,AYS,A9S,AFK,AXK,AYK,A9K C23, C2S, C2J

Temperature range -40°C to + 110°C -20°C to + 120°C -30°C to +150°C -20°C to + 180°C -40ºC to + 150ºC

P (kW)

ATTENTION

•

pump without motor 

All indicated operating limits are not valid for all liquids which can be pumped. See technical data or delivery note.

Note that additional noise can be generated by:

•

the driver.

•

a possible misalignment of the coupling.

•

pipework (note: the larger the pipe diameter, the lower the pipe noise).

Flange locations:  Axial suction flange, discharge flange radially upwards. Flanges: Material design 4B: Complies with DIN 2543 PN16. Material design 0B, 0C, 0E : DIN 2533 PN16 / 2532 PN10

1)

Flanges drilled according to ANSI 150 can be supplied. 1)

 150-200,150-250 and 200-250

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Technical data

Page 2 of 3

Chapter 9

Permissible branch forces and moments: Values according to ISO/DIN 5199 – Class II (1997) – Annex B, Family Nº 2 for mounting on sheet metal baseplates and frames without grouting for pumping temperatures up to 110 ºC and up to 120 ºC for grouted baseplates / frames.

•

  s    i   x    A     z    h   c   n   a   r    b   p   o    T

  s    i   x    A     x    h   c   n   a   r    b    d   n    E

•

Material execution 0B / 0C / 0E: DN flanges

Fy (N)

Fz (N)

Fx (N)

32 40 50 65 80 100 125 150 200 250 300 50 65 80 100 125 150 200 250 300 350

400 400 540 820 820 1080 1620 1620 2160 2700 3220 600 900 900 1200 1800 1800 2400 2980 3580 4180

500 500 660 1000 1000 1340 2000 2000 2680 3340 4000 540 820 820 1080 1620 1620 2160 2700 3220 3760

440 440 600 900 900 1200 1800 1800 2400 2980 3580 660 1000 1000 1340 2000 2000 2680 3340 4000 4660

∑F (N) 780 780 1040 1580 1580 2100 3140 3140 4180 5220 6260 1040 1580 1580 2100 3140 3140 4180 5220 6260 7300

My (Nm)

Mz (Nm)

Mx (Nm)

∑M (Nm)

360 360 400 460 460 500 700 700 920 1260 1720 400 460 460 500 700 700 920 1260 1720 2200

420 420 460 520 520 580 820 820 1060 1460 1980 460 520 520 580 820 820 1060 1460 1980 2540

520 520 560 640 640 700 1000 1000 1300 1780 2420 560 640 640 700 1000 1000 1300 1780 2420 3100

760 760 820 940 940 1040 1460 1460 1920 2620 3560 820 940 940 1040 1460 1460 1920 2620 3560 4560

Material execution 4B:

Multiply by ƒ = 1,536; which is the relationship of  E – modules between 1.4408 and GG-25.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Techical Data

Page 3 of 3

Chapter 9

Maximum permissible speeds at 50 Hz: Max. speed rpm

Size 32125 32160 32200 40125 40160 40200 50125 50160 50200 65125 1) 65160 65200 1) 80160   80200 100160 100200

 

3600

Max. speed rpm

Size 32250 40250 50250 65250 80250 2) 100250 2) 125200

4)

 

3000

1)

For material specification 4B:the max. speed changes to :  3000 rpm 4) In material specification 0E and 4B max. speed 3000 rpm

Max. speed rpm

Size

1   800 rpm

Max speed rpm

4)

40315 50315 4) 4) 65315 8   0315 80400 100315 100400 125250 125315 125400 3) 150200 150250 150315 150400 200250 2)

Size

  1800

150500 200315 200400 200500 250300 250315 250400 250500 300400 300500

  1500

3)

1500 rpm

Operating range: (Continuous operation)

Sizes 32125 to 80400

0,3 Qopt < Q < 1,1 Q opt

100315 to100400 125315 to 125400 150250 to 150500 100160 to 100250

0,5 Qopt < Q < 1,1 Q opt

125200 to 125250 150200 200500 to 300500

0,7 Qopt < Q < 1,2 Q opt

200250 to 200400

This operating range is applicable if waterlike liquids are pumped. If liquids having distinctly different physical properties are handled, it may be necessary to narrow the permissible operating range. See the specific performance curve for more details.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice.

�  (Sterling Fluid Systems BV) 2001

Annex

10.

Annex

10.1

Connections

Page 1 of 14

Chapter 10

Connections for bearing brackets 25, 35 and 45. u m1

1)

Only for Impellers ∅125

k6

u m1

ufo

u k7

ufo u s u fo

u k4 u k5 u k8

us

u m1

u k3 u k4 u k5 u k8

u k6 u k7

u k3

u k1 u k2 u eo u eo

uio

u AL

ue

u m2

u eo

u k1 u k2

u io

u m1 : Pressure gauge. Only available on request u m2 : Pressure gauge. Only available on request u e : Drainage u eo : Oil drainage u io : Constant level oiler (CLO) u fo : Oil filling u  AL : Drainage for leakage. Threaded hole only available on request u s : Sensor Size

um1

um2

ue

ueo

uio

ufo

u AL

us

u io

u k1:  Quench Inlet u k2:  Heating Inlet uk3:  051 Inlet (Stuffing box) u k4  : 052 External sealing (Stuffing box) u k5:  External Flushing u k6:  Quench Outlet u k7:  Heating Outlet u k8:  051 Outlet (Stuffing box)

uk1

uk2

uk3

uk4

uk5

uk6

uk7

1)

32125 32160 32200 32250 1) 40125 40160 40200 40250 40315 1) 50125 50160 50200 50250 50315 1) 65125 65160 65200 65250 65315 80160 80200 80250 80315 80400 100160 100200 100250 100315 100400 125200 125250 125315 125400 150200 150250 150315 150400 200250

G1/4

G1/8

G1/4

G1/4

∅15.65

∅13

M8 G1 / 4

G3/8 G1/8 G1 / 4 G1/8 G1 / 4 G1/8 G1 / 4

Drawings are indicative only.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

 © (Sterling Fluid Systems BV) 2001

uk8

Annex

Page 2 of 14

Chapter 10

Connections for bearing brackets 55 and 65 um1

ufo

um3

um1

ufo uk4 uk8 uk9

View X

X

uk3

ue

uio umo ueo u AL

ueo u AL

um2

u m1 : Self sealing connection u m2 : Pressure/vacuum gauge. Only available on request u e : Drainage u eo : Oil drainage u io : Constant level oiler u fo : Oil filling u  AL : Drainage for leakage

Size 150500 200315 200400 200500 250300 250315 250400 250500 300400 300500

um1

G1/4

um2

G1/2

For local contact details: www.sterlingfluidsystems.com

ue

ueo

G1/2

G1/4

uio

G1/4

ufo

∅20

u m3  : u k3 : uk4 : uk8 : u mo  : u k9 :

u AL

G1/2

um3

G1/2

uk3

G1/4

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

uio

umo

Pressure gauge connection 051 Inlet (Stuffing box) 052 External sealing (Stuffing box) 051 Outlet (Stuffing box) Oil level control 041 inlet (Stuffing box)

uk4

G1/4

uk8

G1/4

umo

G3/4

uk9

G1/4

 © (Sterling Fluid Systems BV) 2001

Annex

10.2

Page 3 of 14

Chapter 10

Table of Dimensions x

a d

l

2

D øk DN 2 d

2

h d

1 k6

2

t u

h

1

DN 1 øk D

c m

s

2 w

b

s 1

2 110

m 1

n

2 n 1

 All dimensions in mm Size 32125 32160 32200 1) 32250 40125 40160 40200 40250 1) 40315 50125 50160 50200 50250 1) 50315 65125 65160 65200 65250 65315 80160 80200 80250 80315 1) 80400 1) 100160 100200 100250 100315 100400 1) 125200 125250 125315 125400 1) 150200 1) 150250 150315 150400 1) 200250

BB 25 25 25 25 25 25 25 25 35 25 25 25 25 35 25 25 25 35 35 25 35 35 35 45 35 35 35 35 45 35 35 45 45 35 35 45 45 45

DN2 32 32 32 32 40 40 40 40 40 50 50 50 50 50 65 65 65 65 65 80 80 80 80 80 100 100 100 100 100 125 125 125 125 150 150 150 150 200

Pump dimensions DN1 a f h1 50 80 360 112 50 80 360 132 50 80 360 160 50 100 360 180 65 80 360 112 65 80 360 132 65 100 360 160 65 100 360 180 65 125 470 225 65 100 360 132 65 100 360 160 65 100 360 160 65 100 360 180 65 125 470 225 80 100 360 160 80 100 360 160 80 100 360 180 80 100 470 200 80 125 470 225 100 125 360 180 100 125 470 180 100 125 470 200 100 125 470 250 125 125 530 280 125 125 470 200 125 125 470 200 125 140 470 225 125 140 470 250 125 140 530 280 150 140 470 250 150 140 470 250 150 140 530 280 150 140 530 315 200 160 470 280 200 160 470 280 200 160 530 280 200 160 530 315 200 160 590 280

h2 140 160 180 225 140 160 180 225 250 160 180 200 225 280 180 200 225 250 280 225 250 280 315 355 280 280 280 315 355 315 355 355 400 400 400 400 450 400

b 50 50 50 65 50 50 50 65 65 50 50 50 65 65 65 65 65 80 80 65 65 80 80 80 80 80 80 80 100 80 80 100 100 100 100 100 100 100

c 15 15 15 15 15 15 15 15 18 15 15 15 15 17 15 15 15 15 18 15 15 18 18 18 18 18 18 18 18 18 18 18 18 20 20 18 18 22

m1 100 100 100 125 100 100 100 125 125 100 100 100 125 125 125 125 125 160 160 125 125 160 160 160 160 160 160 160 200 160 160 200 200 200 200 200 200 200

Foot dimensions m2 n1 n2 70 190 140 70 240 190 70 240 190 95 320 250 70 210 160 70 240 190 70 265 212 95 320 250 95 345 280 70 240 190 70 265 212 70 265 212 95 320 250 95 345 280 95 280 212 95 280 212 95 320 250 120 360 280 120 400 315 95 320 250 95 345 280 120 400 315 120 400 315 120 435 355 120 360 280 120 360 280 120 400 315 120 400 315 150 500 400 120 400 315 120 400 315 150 500 400 150 500 400 150 550 450 150 500 400 150 550 450 150 550 450 150 500 400

s1* M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M16 M16 M12 M12 M16 M16 M16 M16 M16 M16 M16 M20 M16 M16 M20 M20 M20 M20 M20 M20 M20

s2* M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12 M12

w 260 260 260 260 260 260 260 260 340 260 260 260 260 340 260 260 260 340 340 260 340 340 340 370 340 340 340 340 370 340 340 370 370 340 340 370 370 430

x 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 180

d1 24 24 24 24 24 24 24 24 32 24 24 24 24 32 24 24 24 32 32 24 32 32 32 42 32 32 32 32 42 32 32 42 42 32 32 42 42 42

End shaft l t 50 27 50 27 50 27 50 27 50 27 50 27 50 27 50 27 80 35 50 27 50 27 50 27 50 27 80 35 50 27 50 27 50 27 80 35 80 35 50 27 80 35 80 35 80 35 110 45 80 35 80 35 80 35 80 35 110 45 80 35 80 35 110 45 110 45 80 35 80 35 110 45 110 45 110 45

1)

Transnorm pump sizes, not included in DIN 24255 / EN 733. Flanges drilled according to ANSI 150 on request. *Holes for bolts of the dimensions indicated.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

 © (Sterling Fluid Systems BV) 2001

u 8 8 8 8 8 8 8 8 10 8 8 8 8 10 8 8 8 10 10 8 10 10 10 12 10 10 10 10 12 10 10 12 12 10 10 12 12 12

Annex

Page 4 of 14

Chapter 10

Table of Dimensions a d

f 

x l

2

DN øk 2

D

h d

2

2

t

d k6 1

u

h

DN 1 øk D

1

c m 2

s

b

s

2

1

140

w m 1

n n

2

1

 All dimensions in mm Size

BB 1)

150500 1) 200315 1) 200400 1) 200500 1) 250300 1) 250315 1) 250400 1) 250500 1) 300400 1) 300500

55 55 55 55 55 55 65 65 65 65

DN2 150 200 200 200 250 250 250 250 300 300

Pump dimensions DN1 a f h1 200 180 670 400 250 200 670 355 250 180 670 355 250 200 670 425 300 305 655 425 300 250 670 375 300 250 720 400 300 250 720 450 350 300 720 425 350 300 720 480

h2 500 450 500 560 550 560 600 670 670 670

b 100 100 100 100 120 120 120 120 120 140

c 22 22 22 22 28 28 29 32 30 32

m1 200 200 200 200 240 240 240 240 250 250

Foot dimensions m2 n1 n2 150 640 540 150 550 450 150 550 450 150 660 560 190 700 600 190 620 520 190 700 600 190 750 650 190 760 660 190 840 720

s1* M20 M20 M20 M20 M20 M20 M20 M20 M24 M24

s2* M16 M16 M16 M16 M16 M16 M16 M16 M16 M16

w 489 489 489 489 474 489 508 503 508 508

x 180 180 180 180 180 180 180 180 180 180

d1 50 50 50 50 50 50 2) 60 2) 60 2) 60 2) 60

End shaft l t 115 53.5 115 53.5 115 53.5 115 53.5 115 53.5 115 53.5 145 64 145 64 145 64 145 64

u 14 14 14 14 14 14 18 18 18 18

1)

Transnorm pump sizes, not included in DIN 24255 / EN 733. Flanges drilled according to ANSI 150 on request. F   or these sizes the clearance corresponds to M6. *Holes for bolts of the dimensions indicated. 2)

Flange connections to DIN 2501 PN 16 DN2/DN1 D k d2x number

DIN 2501 PN 10

32

40

50

65

80

100

125

150

200

250

300

350

400

100

125

150

200

140 100 18x4

150 110 18x4

165 125 18x4

185 145 18x4

200 160 18x8

220 180 18x8

250 210 18x8

285 240 22x8

340 295 22x12

405 355 26x12

460 410 26x12

520 470 26x16

580 525 30x16

220 180 18x8

250 210 18x8

285 240 22x8

340 295 22x8

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

 © (Sterling Fluid Systems BV) 2001

Annex

10.3

Page 5 of 14

Chapter 10

Parts list

When ordering spare parts give the following information: position number, the complete pump designation and the serial number, which can be found on the nameplate fixed to the pump.

Pos. Nr.

Description

Pos. Nr.

10.20 Volute casing 10.200 Casing plug 10.201 Hexagonal screw 10.202* O-ring 16.10 Casing cover  16.50 Cover   18.30 Pump foot 21.00* Shaft 23.00* Impeller  32.10* Ball bearing 32.11* Ball bearing 33.00 Bearing housing 36.00 Bearing cover  36.01 Bearing cover  40.00* Flat gasket 40.01* Flat gasket 40.02* Flat gasket 40.03* Flat gasket 40.05* Flat gasket 40.06* Flat gasket 41.10* Flat gasket 41.11* Flat gasket 41.22* O-ring 41.23* O-ring 42.10* Lip seal 42.11* 42.20* 43.30* 45.10 45.20 45.70* 45.80* 46.10* 47.10* 50.20* 50.21* 50.40* 50.50* 50.70* 52.30* 52.40* 55.40 56.00 56.10 63.60 63.80

Lip seal V – seal Mechanical seal Packing housing Gland Pressure ring Lantern ring Packing ring Mechanical seal cover  Wear ring Wear ring Distance ring Support washer for ball bearing Thrower  Shaft sleeve Shaft sleeve Washer   Grub screw Pin Grease nipple Constant level oiler 

For local contact details: www.sterlingfluidsystems.com

64.20 67.20 68.10 70.30 73.10 73.11 90.10 90.11 90.12 90.13 90.14 90.20 90.21 90.22 90.23 90.24 90.25 90.30 90.31 90.32 90.33 90.34 90.41 90.80 91.40 91.60 92.00 92.01 92.02 92.06 92.20* 93.00* 93.01 93.21* 94.00* 94.01* 94.02* 99.99

Description

Oil level sight glass Plug Protection screen Pipe Compression nut Screw connection Hexagonal screw Hexagonal screw Hexagonal screw Hexagonal screw Hexagonal screw Stud Stud Stud Hexagonal screw Hexagonal screw Stud Threaded plug Threaded plug Threaded plug Threaded plug Threaded plug Grub screw Hexagonal screw Allen head screw Dip stick Hexagonal nut Hexagonal nut Hexagonal nut Hexagonal nut Impeller nut Helicoil Washer  Circlip Key Key Key Plastic plug

* Recommended spare parts

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

 © (Sterling Fluid Systems BV) 2001

Annex

Page 6 of 14

Chapter 10

ZLND 32125 to 200250 AB MECHANICAL SEALS 0B 2 . 10.20

23.00

50.40

40.00

43.30

16.10

32.10

90.13

50.50

33.00

36.00

42.20

21.00

Mechanical seal code BJ3/BJS/BJJ

92.20

94.01

90.30

90.10

91.40

50.70

18.30

93.01

Mechanical Seal

90.12

90.11

94.00

Mechanical Seal

code AF3/AFS/AFK 10.20 23.00 50.40 43.30 40.00 16.10

56.10

10.20 23.00

Mechanical Seal code AX3/AXS/AXK 10.20 23.00 50.40 43.30 40.00 16.10 99.99 41.23 56.10 42.11 16.50

code C23/C2S/C2J 50.40 43.30 40.00 16.10

Mechanical Seal code AY3/AYS/AYK 10.20 23.00 50.40 43.30 40.00 16.10 99.99 41.23 41.22 56.10 16.50

Mechanical Seal 10.20 23.00 50.40

For local contact details: www.sterlingfluidsystems.com

code A93/A9S/A9K 43.30 40.00 16.10

99.99 56.10

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

 © (Sterling Fluid Systems BV) 2001

Annex

Page 7 of 14

Chapter 10

ZLND 32125 to 200250 AC/A2 MECHANICAL SEALS 0B 2

10.20

23.00

50.40

43.30

40.00

16.10

. 90.13

42.10

32.10

50.50

6 3. 80

9 1. 60

40.02

36.00 21.00

Mechanical seal code BJ3/BJS/BJJ

92.20

94.01

90.30

90.10

91.40

50.70

33.00

63.81

90.31

18.30

Mechanical Seal code AF3/AFS/AFK 10.20 23.00 50.40 43.3 0 40.00 16.10

56.10

10.20 23.00

94.00

Mechanical Seal

code AX3/AXS/AXK 10.20 23.00 50.40 43.30 40.00 16.10 99.99 41.23 56.10 42.11 16.50

10.20 23.00 50.40

www.sterlingfluidsystems.com

90.12 90.11

Mechanical Seal code C23/C2S/C2J 50.40 43.30 40.00 16.10

Mechanical Seal

For local contact details:

93.01

code AY3/AYS/AYK 10.20 23.00 50.40 43.30 40.00 16.10 99.99 41.23 41.22 56.10 16.50

Mechanical Seal code A93/A9S/A9K 43.30 40.00 16.10

99.99 56.10

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

 © (Sterling Fluid Systems BV) 2001

Annex

Page 8 of 14

Chapter 10

ZLND 32125 to 200250 AB STUFFING BOX 0B 2

10.20

23.00

52.40

40.00

16.10

40.05 90.23

45.70

68.10 45.20 90.13

32.10

50.50

33.00

36.00

42.20

21.00

Stuffing box code 041

2.20

94.01

90.30 45.10 46.10 45.80

92.01 90.10

91.40 55.40 90.21

50.70 18.30

93.01

90.12 90.11 94.00

Stuffing box code 052 10.20

52.40 23.00

For local contact details: www.sterlingfluidsystems.com

45.80 45.10

40.00 16.10

99.99 40.05

92.01

45.70

46.10

55.40

45.20

90.21

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

 © (Sterling Fluid Systems BV) 2001

Annex

Page 9 of 14

Chapter 10

ZLND 32125 to 200250 AC/A2 STUFFING BOX 0B 2

10.20

23.00

52.40

40.00

16.10

40.05

90.23 45.20 68.10 45.70 90.13

32.10 42.10

63.80 50.50

91.60 40.02

36.00

21.00

Stuffing box code 041

92.20 94.01 45.10 46.10 45.80 90.30

92.01 91.40 90.21 33.00 63.81 90.10 55.40 50.70

90.31 18.30

93.01 90.12 90.11 94.00

Stuffing box code 052 10.20

52.40 23.00

For local contact details: www.sterlingfluidsystems.com

45.80 45.10

40.00 16.10

99.99 40.05

92.01

45.70

46.10

45.20

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

55.40 90.21

 © (Sterling Fluid Systems BV) 2001

Annex

Page 10 of 14

Chapter 10

ZLND 200315 to 300500 and 150500 AS MECHANICAL SEALS 0B 2

. 0.20

. 50.40

. 16.10

90.80 90.34 40.00 92.06

73.10 41.10

90.22 73.11 70.30 92.02 41.11 47.10

.

. 36.01

.

.

93.21

63.60

. 21.00

Mechanical seal code BJ3/BJS/BJJ

92.20 93.00

94.01 50.20 56.00

40.01

90.30

50.21 56.00

52.30

90.20 92.00

50.40 23.00 40.00 56.10 73.11 47.10 10.20 43.30 16.10 40.06 41.11 90.24 52.30

www.sterlingfluidsystems.com

90.14 18.30 90.12 90.11 32.11 93.01 42.10 40.02

Shaft seal Code C23/C2S/C2J

Shaft seal Code AF3/AFS/AFK

For local contact details:

90.24 40.06

50.40 23.00 40.00 52.30 73.11 47.10 10.20 43.30 16.10 40.06 41.11 90.24

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

 © (Sterling Fluid Systems BV) 2001

Annex

Page 11 of 14

Chapter 10

ZLND 200315 to 300500 and 150500 AT/A2 MECHANICAL SEALS 0B 2

40.03 10.20

50.40

23.00 73.11 90.80 16.10 41.11 90.34 40.00 92.06

73.10 41.10

90.22 70.30 92.02

50.70 67.20 93.21 90.11 94.00 47.10 90.14 32.11 33.00 32.10 21.00

Mechanical seal code BJ3/BJS/BJJ

92.20 93.00

94.01 50.20 56.00

40.01

90.30

50.21 56.00

43.30 52.30

90.20 92.00

90.24 36.01 40.06

90.31

Shaft seal Code C23/C2S/C2J

Shaft seal Code AF3/AFS/AFK

10.20

50.40 23.00 40.00 56.10 73.11 47.10 43.30 16.10 40.06 41.11 90.24 52.30

For local contact details: www.sterlingfluidsystems.com

64.20 18.30 90.12 36.00 63.80 93.01 40.02 42.10

10.20

50.40 23.00 40.00 52.30 73.11 47.10 43.30 16.10 40.06 41.11 90.24

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

 © (Sterling Fluid Systems BV) 2001

Annex

Page 12 of 14

Chapter 10

ZLND 200315 to 300500 and 150500 AS STUFFING BOX 0B 2

10.20

40.03 23.00 73.11 45.80 16.10 41.11

90.80 90.34 40.00 92.06

73.10 41.10

90.22 70.30 92.02

45.20

50.70 33.00 32.10 36.00 94.00 36.01 93.21 63.60 21.00

Stuffing box code 041

92.20 93.00

94.01 50.20 56.00

40.01 90.30

50.21 56.00

46.10 90.20 52.40 92.00

55.40 90.21 92.01

90.14 18.30 90.12 90.11 32.11 93.01 40.02 42.10

Shaft seal Code 052 45.80 23.00 40.00 10.20 46.10 16.10 90.33

For local contact details: www.sterlingfluidsystems.com

45.20

55.40 90.21 92.01

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

52.40

 © (Sterling Fluid Systems BV) 2001

Annex

Page 13 of 14

Chapter 10

ZLND 200315 to 300500 and 150500 AT/A2 STUFFING BOX 0B 2

40.03 0.20

45.80

23.00 73.11 90.80 73.10 16.10 41.11 90.34 40.00 92.06 41.10

90.22 70.30 92.02

50.70 67.20 93.21 90.11 94.00 45.20 90.14 32.11 33.00 32.10 21.00

Stuffing box code 041

92.20 93.00

94.01 50.20 56.00

40.01

90.30

50.21 56.00

46.10 90.20 52.40 92.00

55.40 90.21 92.01

36.01 90.31

64.20 18.30 90.12 36.00 63.80 93.01 40.02 42.10

Shaft seal Code 052 45.80 23.00 40.00 10.20 46.10 16.10 90.33

For local contact details: www.sterlingfluidsystems.com

55.40 90.21 45.20 92.01

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

52.40

 © (Sterling Fluid Systems BV) 2001

Annex

Page 14 of 14

Chapter 10

COPYRIGHT WARNING Please read this notice The material you are viewing in this document is protected by Copyright and may only be used in accordance with Copyright, Designs and Patent legislation.  You are not permitted to copy - either in full or in  part - nor substantially extract, reproduce or re-use any of the contents of this document in any material form or in any medium without permission from the Copyright  holders or their assignees. Any unlawful use of the  material in this document may result in claims for civil remedies, including an injunction to restrain further use and a claim for damages; or may result in criminal penalties.

For local contact details: www.sterlingfluidsystems.com

In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice

 © (Sterling Fluid Systems BV) 2001

SIHI

 S uperNova

 Program

Supplementary operating instructions in accordance to EC directive 94/9/EC (ATEX) for the intended use in potentially explosive atmospheres of the following pumps types, manufactured by Sterling Fluid Systems (Spain), S.A.: ZLN, ZLK and ZLI (Industrial Pumps) ULN (Self Priming Pumps) ZTN, ZTK and ZTI (Thermal Oil Pumps) ZHN, ZDN, ZEN and ZLI (Hot Water Pumps)

These supplementary operating instructions give only general instructions for the use of pumps in conditions that need explosion protection. The operating instructions of the specific pump must be taken into consideration as well. Contents

Page

1

General objective

2

2 2.1 2.2 2.3 2.4

Safety issues Identification of safety symbols in the supplementary operating instructions Compliance with regulations Qualification and training of personnel Safety instructions for maintenance, inspection and installation work

2 2 2 2 3

3 3.1 3.2 3.2 3.4

Instructions referring to design of pump and accessories General Pump pressure containment components Coupling, coupling guard Belt drive

3 3 3 3 3

4 4.1 4.2 4.3 4.4

Instructions referring to installation and start-up of pump sets Coupling Connection to power supply Earthing Belt drive

3 3 3 3 3

5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9

Instructions concerning operation and servicing Unauthorised modes of operation Explosion protection Pump filled and vented Marking Fluid pumped Checking of direction of rotation (see also pump-specific operating manual) Pump operating mode Temperature limits Maintenance

3 3 3 4 4 4 4

5 5 6

1

General Objective

Pumping systems can be operated in hazardous areas. It is the obligation of the operator to define the zone and to select the pump with the correct category for this zone. The pump installation and operation must take the Operating Instructions into accounts that are described in these supplementary operating instructions. They contain important information for safe and reliable pump operation in hazardous areas. This information plus all information given for all components of the system (e.g. the operating instructions for the pump) are of vital importance to avoid risks. These supplementary operating instructions do not take into account national nor local regulations; the operator must ensure that such regulations are strictly observed by all, including the personnel in charge of the installation. For any further information or instructions exceeding the scope of this manual or in case of damage please contact Sterling Fluid Systems nearest customers service.

2

Safety issues

These supplementary operating instructions contain fundamental information concerning all actions with pumping systems, when operated in hazardous areas like: installation, inspection, operation, monitoring and maintenance. Therefore these – and all other instructions with related to safety must be known and available with easy access to all personnel, which is involved in the above stated actions. Not only must the general safety instructions established in this chapter on ”Safety issues” be complied with, but also the safety instructions outlined under specific headings as well as the safety instructions contained in the specific operating manual of the specific pump. 2.1 Identification of safety symbols in the supplementary operating instructions In these supplementary operating instructions the safety instructions related to explosion protection are marked with:

The sign

is used to highlight safety instructions where non-compliance may pose a damage to the pump and its functions. 2.2 Compliance with regulations It is imperative to comply with the safety instructions contained in these supplementary operating instructions, the operating instructions of the pump type concerned, the relevant national and international explosion protection regulations, health and safety regulations and the operator’s own internal work, operation and safety regulations. Ex symbol relates to additional requirements, which must be complied with when the pump is operated in hazardous areas. In addition the following must be observed: If the pumps / units are located in hazardous areas, it is imperative to make sure that the correct category of  pump and equipment is selected and that unauthorised modes of operation are prevented. Non-compliance may result in first: increased risk of explosion and second: the specified temperature limits might be exceeded.

Non-compliance with these safety instructions may also result in the loss of any rights to claim damages. In addition to the hazards indicated in the operating manual of the relevant pump type,

Non-compliance may also result in hazards to persons by explosion. 2.3 Qualification and training of personnel The personnel responsible for or involved in the installation, the operation, maintenance and inspection of the pump and the unit must be adequately qualified to carry out these works in hazardous areas. The scope of responsibility and supervision of the personnel must be exactly defined by plant management. If the staff does not have the necessary knowledge, they must be trained and instructed. The pump manufacturer or  supplier on behalf of the plant management may perform this task. Moreover, plant management must ensure that the contents of the operation instructions are fully understood by plant operators and other relevant personnel such as maintenance staff.

Page 2

2.4 Safety instructions for installation work, inspection operation and maintenance The operator is responsible to assure that all installation work, inspection, operation and maintenance must be carried out by authorised and qualified specialist personnel, which is thoroughly familiarised with the pump operating instructions and these supplementary operating instructions. If necessary, additional explosion protection regulations must be considered.

3

Instructions concerning design of pump and accessories

3.1 General The pumps and the accessories for installations in hazardous areas must comply with the relevant category of  mechanical and electrical equipment. Some details are pointed out below: 3.2 Pump pressure containment components

For handling inflammable fluids, the pump pressure containment components must be made of ductile material. 3.3 Coupling, coupling guard The accident prevention regulations require, that pump drives must not be operated without a coupling guard. If a customer specifically decides, not to include a coupling guard in our delivery, then the operator must provide such coupling guard himself. The coupling must be selected and sized in accordance with the instructions of the coupling manufacturer. It is important to make sure that the materials selected for coupling and coupling guard are nonsparking in the event of mechanical contact. Sterling Fluid Systems scope of supply meets this requirement. In hazardous areas coupling guards must be of non-sparking material, whereby the coupling material must be considered. 3.4 Belt drives Belts must include some electrically conductive material.

4

Instructions concerning installation and start-up of pump sets

In addition to the normal installation instructions, the specific criteria for explosion proof are listed below: 4.1 Coupling The coupling must be installed, started-up and operated in accordance with the operating instructions of the coupling manufacturer. Misalignment of the coupling may result in inadmissible temperatures at the coupling and pump and motor bearings. It has to be ensured, that the half couplings are correctly aligned at all times. 4.2 Connection to power supply Only a properly trained electrician must effect connection to the power supply. The available main voltage must be checked against the data on the motor rating plate and an appropriate start-up method must be selected. It is strongly recommend to use a motor protection device (motor protection switch). In hazardous areas, compliance with national and local regulations form an additional requirement for  electrical connections. 4.3 Earthing To eliminate risks due to electrostatic charging, the pump set must be earthed directly or through an earthing line. 4.4 Belt drive Belt-driven pump sets must always be earthed. The condition of the belts must be checked regularly.

Page 3

5

Instructions concerning operation and maintenance

5.1 Unauthorised modes of operation The warranty relating to the operating reliability and safety of the unit supplied is only valid if the equipment is used in accordance with its designated use as described in the following sections of this supplementary operating manual and the pump-specific operating manual. The limits stated in the data sheet must not be exceeded under any circumstances. Any operation of the pump outside the permissible operating range and any unauthorised modes of operation may result in the specified temperature limits being exceeded (see section 5.8). 5.2 Explosion protection If the pumps / units are installed in hazardous areas where compliance with EC directive 94/9/EC is required, the measures and instructions given in the following sections 5.3 to 5.9 must be carried out with no excuse, to ensure explosion protection. 5.3 Pump filled and vented Especially dry running of a pump results in friction and non-allowed temperature rise. Therefore precautions have to be taken to prevent dry running.

It is necessary that the system of suction and discharge lines and thus the wetted pump internals including seal chamber and auxiliary systems are completely filled with the fluid to be handled at all times during pump operation, so that an explosive atmosphere is prevented. If the operator cannot warrant this condition, appropriate monitoring devices must be used. Improper installation (e.g. vertical installation) may impair the self-venting properties of the seal chamber, so that gas bubbles may be collected in the pump and cause the mechanical seal to run dry. High negative pressure on the suction side (e.g. due to clogged suction-side strainers or low system pressure) may result in air intake at the shaft seal forming gas bubbles in the pump. This may also cause the mechanical seal to run dry. Suitable monitoring facilities shall be installed, if necessary. For design-inherent reasons, however, it is not always possible to exclude the existence of a certain residual volume not filled with liquid after the pump has been filled prior to start of operation. However, once the motor is started up the pumping effect will immediately fill this volume with pumped fluid.

It is imperative to make sure that the seal chambers and auxiliary seal systems are properly vented from air and filled with liquid.

5.4 Marking The Ex marking on the pump only refers to the pump part, i.e. the coupling and motor must be considered separately. The coupling must have an EC Declaration of Manufacturer and the EC marking. The driver must be treated separately. Example of marking on the pump part: CE Ex II 2 G c T1 - T5 The safety instructions published in section 5.8 must be complied with. 5.5 Fluid handled Abrasive particles in the fluid handled may erode the casing walls to such an extent that fluid may escape. When handling inflammable media, it has to be ensured that the fluid does not contain any abrasive particles, or that the pump is regularly checked with respect to erosion. 5.6 Checking the direction of rotation (see also pump-specific operating manual) If the explosion hazard also exists during the installation phase, the direction of rotation must never be checked by starting up the unfilled pump unit, even for a short period, to prevent temperature increases resulting from contact between rotating and stationary components. If it is not possible to fill the pump, the direction of rotation must be checked with the pump / motor coupling removed.

Page 4

5.7 Pump operating mode Make sure that the pump is always started up with the suction-side shut-off valve fully open and the discharge-side shut-off valve slightly open. However, the pump can also be started up against a closed swing check valve. Only after  the pump has reached full rotational speed shall the discharge-side shut-off valve be adjusted to comply with the duty point.

Pump operation with closed shut-off valves in the suction and / or discharge pipes is not permitted. In this case, there is a risk of the pump casing reaching a high surface temperatures after a very short time, due to a rapid temperature rise in the pumped fluid inside the pump.  Additionally, the resulting rapid pressure build-up inside the pump may cause excessive stresses on the pump materials and even cause it to burst. The minimum flows indicated in the relevant pump operating manuals refer to water and water-like liquids. Longer  operating periods with these liquids and at the flow rates indicated will not cause an additional increase in the temperatures on the pump surface. However, if the physical properties of the fluids handled are different from water, it is essential to check if an additional heat build-up may occur and if the minimum flow rate must therefore be increased. The calculation formula below can be used to check if an additional heat build-up may lead to a dangerous temperature increase at the pump surface. To = Tf + ∆ϑ

∆ϑ=   ((g * H) / (c * η))*(1 - η) c g H Tf To η ∆ϑ

Specific heat of liquid [J / kg K] 2 Acceleration due to gravity [m /s] Pump head [m] Temperature of fluid handled [º C] Temperature of casing surface [º C] Pump efficiency [-] Temperature difference [º C]

5.8 Temperature limits In normal pump operation, the highest temperatures are to be expected on the surface of the pump casing, at the shaft seal, at the bearing areas and at the pump shaft end in close coupled executions. Unless the pump is equipped with an additional heating facility, the surface temperature at the pump casing will correspond to the temperature of the fluid handled, assuming that the pump surface is freely exposed to the atmosphere. In any case, responsibility for compliance with the specified fluid temperature (operating temperature) lies with the plant operator. The maximum permissible fluid temperature depends on the temperature class to be complied with. The following limits for the maximum permissible fluid temperature must be observed for the individual temperature classes as per EN13463-1 given below (temperature increase in the shaft seal area, if any, has been taken into consideration): Temperature classes as per EN 13463-1:

Permissible surface temperature

Max. permissible fluid temperature for compliance with temperature class

T5 T4 T3 T2 T1

100 º C 135 º C 200 º C 300 º C 450 º C

80 º C 115 º C 180 º C 280 º C Temperature limit of pump

Safety note:

The permissible operating temperature of the pump in question is indicated in the technical data. If the pump is to be operated at a higher temperature, the technical data are missing or if the pump is part of a pool of pumps, the maximum permissible operating temperature must be requested from the pump manufacturer.

Page 5

Because of the very close contact between pumps and motors in close coupled design (ZLK and ZLI, Industrial Pumps; ZTK and ZTI, Thermal Oil Pumps; and ZLI, Hot Water Pumps), there is a thermal influence between pump and motor. Especially for motors with protection type EExe (increased safety) the possibility exists that the declaration of  conformity looses its validity, as for the EC type examination an ambient temperature of 40°C is taken as a basis. This admissible ambient temperature could be exceeded in the area of the motor flange when pumping hot liquids. In the event of fluid temperature above 80ºC, the temperature category of the unit / set is determined by the pump not by the motor. The motor is usually rated for continuous operation at the data indicated in the technical data. Frequent motor  start-ups may result in increased surface temperatures at the motor. Contact the motor manufacturer, if necessary. Based on ambient temperatures of max. 40 º C and assuming that the pump unit is properly serviced and operated and that the surfaces in the bearing area are freely exposed to the atmosphere, compliance with temperature class T4 is warranted for surfaces in the area of the rolling element bearings. If temperature classes T5 (100ºC) and T6 (85ºC) have to be complied with, special measures may have to taken with regard to bearing temperature. In such cases, and if ambient temperatures are higher, contact the manufacturer. Operator’s errors or malfunctions may result in substantially higher temperatures. Please refer to section 5.1 in this context. Mechanical seals may exceed the specified temperature limits if run dry. Dry running may not only result from an inadequately filled seal chamber, but also from excessive gas content in the fluid pumped. Pump operation outside the specified operating range may also result in dry running. Shaft seals shall be regularly checked for leakage. The above stated and also stated in other paragraphs related to the mechanical seal, is also applicable for  any shaft sealing execution (i.e. packing rings, lip seal rings, etc.) In any case the operator has the responsibility to check the real compatibility between the normal leakage of the fluid and the atmosphere in the case of shaft sealing made by packing rings. It has to be verified, that V-rings are properly fitted to the shaft. Only proper contact should be exist between the sealing lip and the shaft.

5.9 Maintenance

Only a pump set, which is properly operated and maintained in perfect technical condition, will give safe and reliable operation. This also applies to the reliable function of the rolling element bearings whose actual lifetime largely depends on the operating mode and operating conditions. Regular checks of the lubricant and the running noises will prevent the risk of excessive temperatures as a result of  bearings running hot or defective bearing seals. The correct function of the shaft seal must be checked regularly.  Any auxiliary systems installed must be monitored, if necessary, to make sure they function correctly. Static sealing elements shall be regularly checked for leakage. The coupling guard and any other guards of fast rotating components must be regularly checked for deformation and sufficient distance from rotating elements. Regularly verify the correct position and the status of plastic components exposed to the atmosphere. It is strongly recommended to draw up a maintenance schedule, which includes the above-mentioned points.

In case of repair only original Sterling Fluid Systems spare parts must be used, which comply with the corresponding EC Directives.

Sterling Fluid Systems In the search to improve continuously its products, Sterling Fluid Systems reserves the right to modify its products at any time without prior notice For local contact details: www. sterlingfluidsystems.com

Page 6

Sterling Fluid Systems (Spain), S.A. Vereda de los Zapateros, s/n 28223 Pozuelo de Alarcon (Madrid) España Phone: 0034 91 7091310, Fax: 0034 91 7159700

Declaration of Conformity In the sense of the EU Directive 98/37/EC, Appendix II B Herewith we declare that the pump type:

In the version supplied by us complies with the following relevant regulations: EU Machine Directive 98/37/EC, Appendix I No. 1 EU Directive 94/9/EC, Group II, category 2, atmosphere G (Ex II 2 G c T1-T5)  And that is destined for installation in a machine / assembly with other machines to form a single machine and that it may not be commissioned until it has been determined that the machine in which this pump is to be installed or with which this pump is to be assembled complies with the clauses of the EU Machine Directive in the version of 98/37/EC and 94/9/EC. Harmonised standards used, in particular: EN 809 EN 292 part 1 EN 292 part 2

EN 733

EN 1127 - 1 EN 13463 - 1 prEN 13463 - 5

In the actual version. National technical standards and specifications used, in particular: UNE-EN 809 UNE-EN 292-1 UNE-EN 292-2

UNE-EN 1127-1 UNE-EN 13463 - 1

Unauthorised alterations of the pump unit and any use not in accordance with valid regulations and / or intended use result in a loss of validity of this declaration. Sterling Fluid Systems, (Spain), S.A. Business Unit Manager 

J. A. Cobo June 10, 2003