Geberit-Seminar Futurist Plumbing

FUTURISTIC PLUMBING September 18, 2010

Content
Basic of drainage systems
Sovent single stack drainage system
Basic of sanitary acoustic
Low noise solutions
Important factors during planning
Prewall Installation

2

Overview Everything revolves around water and sanitary technology

No water consumption

12 liters of water per flush

Choice of either 6 or 3 liters of water per flush

3

Basic Drainage System

4

Basic of Drainage Systems Requirements for drainage systems


Hydraulic (blockages, self syphonic

gurgling sound!!)


Corrosion resistant
Temperature resistant
Good mechanical strength
High durability
Low sound influence
Easy and safe to install

The main requirement of the drainage system is that waste and soil water (solids and liquids) should be carried away quickly, quietly, without blockage and without the escape of foul air into the building Sanitary Plumbing Services, B H Clark

5

Basic of Drainage Systems Elements in drainage systems


Air
Solids
Water

- Air circulation

Air

- Solids - Water

MOST IMPORTANT AIR!!! 1 m3 WATER requires 20 – 35 m3 AIR 6

Basic of Drainage Systems Hydraulic: Filling ratio h/d of horizontal pipes

h/d 0.5 – 0.8

h/d below 0.5

h/d above 0.8

Air

Air

No Air

Water

h

d

Sufficient flow efficiency

Water Water

h

h

d

Insufficient flow efficiency blockages

d

No air circulation self syphonic

Appropriate size and gradient of discharge pipe 7

Basic of Drainage Systems

- air circulation

water

Air circulation and waterflow in vertical pipes air water

Velocity in m/s 24 2gh 20

Theoretical velocity

16 12

Real velocity in stacks

8 4 0 0

5

10

15

20

25

30

35

Height of stack in m

Max. velocity at a height of 35 m, approx.13m/sec

MOST IMPORTANT AIR!!! 1 m3 WATER requires 20 – 35 m3 AIR 8

Hydraulic in drainage systems Cause of negative-/over pressure in traps

Completely filled pipe = negative pressure

negative pressure

Self-siphonage of water seal due to fulfil of connector pipe

Siphonage due to negative pressure in the stack

Backup of water seal due to connection in over pressure zone over pressure

9

Sovent Single Stack Drainage System

10

Sovent: An innovative solutions Simple and effective

Training facilities in Switzerland

11

Sovent development

1958 – 1961

Start of studies at the Institute of Sanitary Installation in Bern, Switzerland (Sovent Aerator Fitting designed by Swiss Engineer Mr. Sommer)

1961 – 1965

World wide registration of patents

12

Sovent: An innovative solutions Sovent Aerator Fitting

110 mm

110 mm

110 mm

110 mm

75 mm

75 mm

110 mm 13

Sovent: An innovative solutions Conventional Drainage Systems in High Rise Building

How does it work ? Air Water Under pressure Over pressure • Reduced flow of air • Hydraulic inbalance

Air circulation blocked

Max. 4,2 l/s (100 mm Dia) 14

Sovent: An innovative solutions Sovent Aerator Fitting

How does it work ?

Air

+ / - Pressure

Water • Higher discharge capacity • Balanced performance Max. 8,7 l/s (100 mm Dia)

15

Sovent: An innovative solutions Function of Sovent system


Eliminates hydraulic plug
Limits the velocity of the air and waste flow
Ensures venting action of the stack and branches
Combines branch and stack and branches flow in an optimal way
Provides multiple connection possibilities with 1 single fitting

Sovent

Conventional

Free air circulation

Hydraulic closure air circulation blocked 16

Sovent: An innovative solutions Performance of Sovent single stack system

Velocity in m/s


Negative pressure in the stack Sovent limits the negative pressure by optimal venting and reduced flow velocity and prevents high water loss in traps

2gh

24 20 16

Theoretical velocity

12 8 Real velocity in stacks

4 0 0

5

10

15

20

25

30

35

Length of stack in m

H = 50 mm

17

Sovent: An innovative solutions Characteristic

Single stack system 110 mm
Max. recommended floor levels 6
Max. number of WC: 14 pcs or 4,2 l/s

18

Sovent: An innovative solutions Characteristic

Parallel ventilated system 110 mm
Approx. 10 floors levels
Max. number of WC: 30 pcs or 5,9 l/s

19

Sovent: An innovative solutions Characteristic

Fully ventilated system 110 mm
Approx. 50 floors levels
Max. number of WC: 50 pcs or 7,6 l/s

20

Sovent: An innovative solutions Characteristic

Sovent system 110 mm
Single stack
Higher capacity
Only 1 Sovent fitting per floor
No parallel vent
No back-vent
Approx. 50 floors
Max. number of WC: 73 pcs or 8,7 l/s

21

Sovent: An innovative solutions Discharge unit

∅ 56

URINAL direct

∅ 56

BIDET

∅ 56

SHOWER (without plug)

∅ 56

KITCHEN-SINK

∅ 63

BATHTUB

∅ 63

BATHTUB

∅ 63

SHOWER (with plug)

∅ 63

WC-WALL-HUNG 6 l

∅ 90

WC-FLOORMOUNTED 6 l

∅ 90

WC-WALL-HUNG 9 l

∅ 110

WC-FLOORMOUNTED 9 l

∅ 110

2.5 DU

2.0 DU

0.8 DU

0.5 DU

WASHBASIN

FLOOR DRAIN

∅ 110

FLOOR PAN 9 l

∅ 110

22

Sovent: An innovative solutions Design features of Sovent single stack system


The simultaneous flow is a function of the number of discharge units installed
The simultaneous flow is calculated with the formula: 0,5 x square root of the total of all discharge units

Qs = 0,5 x

∑ DU

[l/s]


Maximum stack loading of Sovent system Diameter

Loading max. Qs

DU

Stack

Vent

l/s

302

100

100

8,7

23

Sovent: An innovative solutions Calculation Example
Building details - 21 storeys apartment building - 2 apartments per floor - Room height 3.1 m


Appliances per apartment - 1 Bathtub - 2 Washbasin - 1 WC (6l)


Piping Material is HDPE

24

Sovent: An innovative solutions Calculation Example


Calculation with conventional method Qty

Appliance

DU

Total DU

1

Bathtub

0.8

0.8

2

Washbasin

0.5

1.0

1

WC (6l)

2.0

2.0

Total DU per Apartment

3.8

Total building: 3.8 DU x 2 apartment per floor x 21 storeys = 159.6 DU K factor = 0.5 for residential building 0.5 x (√159.6) = 6.3 l/s 25

Sovent: An innovative solutions Calculation Example


Concept - 1 Stack as the flow rate is below 8,7 l/s - Stack is vented over the roof - Pressure relief line at the end of the stack

26

Sovent: An innovative solutions Solution with ProPlanner

27

Sovent: An innovative solutions Sovent in practice

How to connect a Sovent fitting


The Sovent fitting is made of HDPE by blow moulding procedure




Stack connection by electro welding sleeve or butt welding dimension 110 mm




Branch connection 3 x 110 mm and 3 x 75 mm by cutting off the required end and welding a connection pipe

28

Sovent: An innovative solutions Advantages


Sovent system


Conventional

29

Sovent: An innovative solutions Summary: Sovent Single Stack Drainage System


Simplifies the design of domestic waste/soil water stacks
Reduces the pneumatic and hydraulic pressure
Space saving solution
No vent/back pipes required
Smaller pipe diameters

Better performance for less money!!!


Less pipes and fittings
Faster and easier installation
Ideal for pre-fabrication


Software for calculation and material list


Proven technology since 1962
Cost saving in construction 30

Sovent: An innovative solutions Testing, Standards and Approvals


European standard DIN EN 12056-2
Tests for the development of the basic idea of Sovent at the Institute of Sanitary Installation in Bern, Switzerland
Tests for the development of the Geberit HDPE Sovent fitting at the Geberit Hydraulic Testing Tower
Research works at NBS USA on Sovent system performance of a single-stack DWV system
Research works of CSTB France on Sovent system
Approvals in France, Belgium and Germany
US Standards for Sovent system in - Copper ANSI B16.43-1982 - Cast Iron ANSI B16.45-1987

31

Drainage Systems Sovent System and Silent-dB20

Silent-dB20

Sovent

32

Basics of sanitary acoustics Sound solutions

Sound insulation only where required 33

Basics of sanitary acoustics What is noise?


Noise is a sound that is perceived as disturbing
Noise is relative

34

Basics of sanitary acoustics Why is noise relative?

35

Basics of sanitary acoustics Perception of sanitary noises from other habitations

40 dB(A) not acceptable 35 dB(A) too loud, unreasonable 30 dB(A) casually disturbing 25 dB(A) not or rarely disturbing 20 dB(A)

36

Basics of sanitary acoustics Airborne sound and solid-borne sound

Excitation of a wall by airborne sound

Excitation of a wall by solid-borne sound

37

Basics of sanitary acoustics Pipe layout for downpipes


Downpipe in general - The following noises can be distinguished: fall noise of the water in all vertical straight pipes

fall noise

impact noise of the water in all offsets and bends flow noise of the water in all horizontal straight pipes

impact noise

flow noise 38

Basics of sanitary acoustics Pipe layout for downpipes - Deflections with different inclinations

2 x 45°

2 x 30°

20 cm

2 x 15°

20 cm

20 cm Sound level increase compared to straight pipe: + 9 dB

Sound level increase compared to straight pipe: + 7 dB

Sound level increase compared to straight pipe: + 5 dB 39

Low noise solution High airborne sound insulation Barium sulphate


Mineral-reinforced PE (PE-S2)

⇒ More mass = sound absorption

High Density Polyethylene Volume Polyethylene HDPE 80 %

Barium sulphate 20 %

Weight Polyethylene HDPE 45 % Barium sulphate 55 % 40

Low noise solution Noise protection through a system approach

Embedding of Silent pipes

40 dB

PE without

30 dB

insulation tape 20 dB

Silent with Silent with

insulation hose

Isol The real values depend on the actual construction situation! 41

Low noise solution Silent is a system solution!

Silent Drainage System Silent pipe avoids air borne sound

Silent fastening system ensures decoupling of solid borne sound Silent insulation hose avoids acoustic bridges

Isol further reduces additional airborne/solid borne sound 42

Low noise solution Installation of HDPE in concrete

43

Low noise solution Silent-dB20 sound behavior compared to cast iron Configuration Testing room

Measurement results in dB(A) 2.0 l/s

30 dB(A)

26

According the test installation above the Fraunhofer Institut makes noise protection tests according to DIN EN 14366.

Silent-db20

Cast iron

18

Increased requirements regarding noise protection

25 dB(A)

Cast iron:

results with lateral support, pipe clamp type Tyrodur

Silent-db20:

results with Silent-db20 and Silent-db20 pipe clamp

The measurements on the right side have been measured behind the installation room in the room below. 44

Important factors to be taken into consideration during planning Acoustical and constructional optimal layout design


Goal of the acoustical insulation is to protect other living areas
If there are great demands on acoustical insulation, it must already be considered in the design
Bathrooms, toilets and kitchens shouldn't adjoin to rooms in need of protection of other habitations!

45

The ultimate sound solution: PreWall Installation Fixation for Prewall Installation

46

The ultimate sound solution: PreWall Installation Prefabrication of complete Installation Elements

Prefabrication in the workshop

Ready for Installation 47

Important factors to be taken into consideration during planning Comparison solid construction – dry wall construction

Flush activation

Sound level

Installation noise measurements

Solid

Dry wall

6 litre toilet flushing

Flushing and waste water noise

Filling noise of the valve Time (seconds) 48

Important factors to be taken into consideration during planning Comparison solid construction – dry wall construction

Solid construction

Dry wall construction

Brick-lined pre-wall installation in front of solid partition wall (180 kg/m2) with installation components for toilet and washbasin

Pre-wall installation in front of solid partition wall (180 kg/m2) with installation components for toilet and washbasin

Noise level LIn in the room diagonally below: 27 dB(A)

Noise level LIn in the room diagonally below: 18 dB(A)

49

The ultimate sound solution: PreWall Installation Conclusion
Design freedom -

Modern bathroom layouts

-

Attractive appearance

-

Shelf creates additional space (PreWall application)


Simplified Construction - PreWall avoids excessive chasing of structure - Cistern with frame offers pre-mounted connections - Shortening construction time


Added value - High hygienic performance - Prevention of sound transmission


Economics - Water saving - Cost saving - Low maintenance

50

Creative solution …and design and modern bathrooms to inspire our target group

51

Futuristic Plumbing A complete System

Design Product functionality and quality

Guarantee

Complete Ownership Supply

Inspection

Training

52

PreWall Installation A modern and stylish way to shape the future

53

Thank You!