Sp-47-27[Fire Fighting Equipment and Facilities]

NIOEC-SP-47-27(1) DOCUMENT CODE PLAN/PRJ/SUB

UNIT

PHASE

DISCIPLAN E

NIOEC

000

EG

SF

 NO. OF PAGES:14

DOCUMENT TYPE

SERIAL NO.

REV. NO.

SP

4727

A1

DATE

OCTOBER, 2006

NATIONAL IRANIAN OIL REFINING & DISTRIBUTION COMPANY

NATIONAL IRANIAN OIL ENGINEERING & CONSTRUCTION COMPANY

NIOEC SPECIFICATION FOR

FIRE FIGHTING EQUIPMENT AND FACILITIES

FIRST EDITION OCTOBER, 2006

THIS SPECIFICATION IS THE PROPERTY OF NATIONAL IRANIAN OIL ENGINEERING & CONSTRUCTION COMPANY. IT IS CONFIDENTIAL AND ALL RIGHTS RESERVED TO THE OWNER. NEITHER WHOLE NOR ANY PART OF THIS DOCUMENT MAY BE DISCLOSED TO ANY THIRD PARTY, REPRODUCTED, STORED IN ANY RETRIEVAL SYSTEM OR TRANSMITTED IN ANY FORM OR BY ANY MEANS WITHOUT THE PRIOR WRITTEN CONSENT OF THE NATIONAL IRANIAN OIL ENGINEERING & CONSTRUCTION COMPANY

OCTOBER, 2006

 NIOEC-SP-47-27(1)

 NIOEC-SP-47-27(1)

OCTOBER, 2006

REVISION INDEX

NOTES: 1)

THIS SHEET IS A RECORD OF ALL REVISIONS TO THIS SPECIFICATION.

2)

REMARKS RELATED TO EACH REVISION SHOW A BRIEF DESCRIPTION. THESE REMARKS SHALL BE INTERPRETED IN CONJUNCTION WITH THE REVISED TEXT MARKED BY REVISION NUMBERS.

3)

WHEN APPROVED EACH REVISION SHALL BE CONSIDERED AS A PART OF THE ORIGINAL DOCUMENT.

4)  NUMBER OF PAGES EXCLUDES THIS SHEET AND THE COVER SHEET.

REV.

OCTOBER, 2006

M.KHEZRI

M.R.FARZAM

M.A.A.SAJEDI

JULY, 2005

M.KHEZRI

M.R.FARZAM

M.A.A.SAJEDI

DATE

PREPARED

APPROVED

AUTHORIZED

CHECKED

OCTOBER, 2006 

CONTENTS:

NIOEC-SP-47-27(1) PAGE NO.

1. SCOPE

2

2. REFERENCES

2

3. UNITS

3

4. DEFINITIONS & TERMINOLOGY

3

5. DESCRIPTION OF SYSTEM

3

6. DESIGN BASIS

5

7. DESIGN REQUIREMENTS

6

8. EQUIPMENT SPECIFICATION

11

9. INSPECTION & TESTS

13

10. PREPARATION FOR SHIPMENT

13

OCTOBER, 2006 

NIOEC-SP-47-27(1)

1. SCOPE 1.1 This Specification covers the design basis of fire fighting facilities and fixed equipment to  be employed for the prevention, control and extinguishing of Refinery fires, it does not cover fire resistant construction, insulation or fireproofing, trenching or fire-walling, electric bonding or earthing, or general regulations affecting personnel or equipment. 1.2 Interchangeability of equipment within Refineries shall be a primary consideration. 1.3 An approved altering and communicating system is required with fire detector systems for special risks. 2. REFERENCES

Throughout this Specification the following dated and undated standards/codes are referred to. These referenced documents shall, to the extent specified herein, form a part of this Specification. For undated references, the latest edition of the referenced document (including any supplements and amendments) applies. For dated references, the edition cited applies. The applicability of changes in dated references that occur after the cited date shall mutually be agreed upon by the company and the Vendor/Contractor. ASME (AMERICAN SOCIETY OF MECHANICAL ENGINEERING)

ASME B16.5

“Steel pipe flanges and flange fittings”

NIOEC-SP (NIOEC SPECIFICATIONS)

 NIOEC-SP-00-10  NIOEC-SP-00-66  NIOEC-SP-46-16  NIOEC-SP-47-32  NIOEC-SP-50-01

 NIOEC-SP-90-52

“NIOEC Specification for Units” “NIOEC Specification for Liquid & Gas Transfer & Storage” “NIOEC Specification for Fire Water Pumps” “NIOEC Specification for Co2 Extinguishing System” “NIOEC Specification for General Piping, Process and Utility Design, Equipment Layout and Drawing Procedure” “NIOEC Specification for packing and packages”

NIOEC-SD (NIOEC STANDARD DRAWINGS)

 NIOEC-SD- 5013-1/1

“Standard DWG Underground & Misc. Piping Details”

NFPA (NATIONAL FIRE PROTECTION ASSOCIATION CODES)

Code No. 10 Code No. 11 Code No. 12 Code No. 14 Code No. 15 Code No. 20 Code No. 24

“Fire Extinguishers, Portable” “Low Expansion Foam and Combined Agent Systems” “Carbon Dioxide Extinguishing System” “Standpipe Private Hydrant and Hose Systems” “Water spray Fixed Systems for Fire Protection” “Fire Pumps, Centrifugal” “Private Fire Service Mains and their Appurtenances”

OCTOBER, 2006 

NIOEC-SP-47-27(1)

BRITISH STANDARD

BS – 336

“Specification for fire hose couplings and ancillary equipment”

3. UNITS

International system of units (SI) shall be used in accordance with NIOEC-SP-00-10, unless otherwise specified. 4. DEFINITIONS AND TERMINOLOGY 4.1 Company: Means National Iranian Oil Engineering & Construction Company. 4.2 Purchaser: Means National Iranian Oil Engineering and Construction Company in cases where this Specification is part of direct order by NIOEC and contractor where this Specification is part of contract Documents. 5. DESCRIPTION OF SYSTEMS 5.1 The philosophy adopted in the design of fire fighting facilities shall be that Fire Fighting facilities shall be sized adequately and designed for fighting two major fires simultaneously occurring in the refinery and/or tankage area. Fire fighting activities may be carried out on the burning facility using monitors, hose reels, hydrant nozzles, foam system, fire water, CO2 system, portable fire extinguishers, steam extinguishing means, mobile fire fighting equipment (fire trucks), etc. The following fire protection systems shall be provided for the project. - Fire water storage and fire water pumping/distribution systems (including outdoor water hydrants, fixed and portable water monitors and outdoor/indoor hose reels). - Semi – fixed foam extinguishing system complete with CF3I ream seal protection system (sub-surface and top pouring foam extinguishing system) for tanks containing flammable liquids. - Fixed water cooling system for tanks containing hydrocarbons. - Fixed water spray system for LPG spheres, bullets and large separators containing light oils likely to cause BLEVE (Boiling Liquid Expanded Vapor Explosion). - CO2  extinguishing system for substations and Gas Turbine Generators. CO 2 extinguishing system shall also be provided for “Battery Room” of substation .Where under floor cable void is provided, CO 2 distribution piping shall be extended to the cable void, no fire detectors are required in the cable voids but CO 2 extraction fan is required. For Remote Instrument Buildings (RIB) the same philosophy of substations should be applied. - Steam extinguishing system (Snuffing steam) - Fire extinguishers - Fire training area including all facilities and connections

OCTOBER, 2006 

NIOEC-SP-47-27(1)

5.1.1 The fire water system shall provide water for fire fighting and fire protection for the  process units, utility area, tankage area, buildings, other off-site are as, etc... Water shall be available for mechanical Foam systems and also, for the cooling of equipment and structures near a fire. Water for fire fighting shall be provided by an independent fire ring main fed by the fire pumps and normally cross connected to the Refinery cooling water system. The fire water pumps shall have suction line access to the raw water line and raw water tanks for emergency purposes and shall  be located at least 30 m from fire water tanks. Provision should be made for  pumping from storage tanks or other reliable sources. Adequate supply of water must be made available in accordance with National Fire Code, and company, requirements and approval. The fire water system shall be sized adequately and designed for fighting two major fires simultaneously occurring in the refinery and/or tankage area (the most cases of two major fires in the refinery, or one major fire in the refinery and one major fire in the tankage area).  Note that each process unit, a tank bounded area or a LPG scheme is considered as a single hazard. Sizing of main fire water-distribution line shall be based an all lines  being in service. Basically, the flow velocity in the piping system shall not exceed 1.83 m/sec at 10.35 barg discharge pressure of fire water pumps (for design  purpose). The system design shall conform to NFPA code No. 24, using a Hazen-Williams coefficient of 100 for carbon steel pipe and Hardy Cross formula. 5.1.2 Water shall be applied by means of hose and branch pipes using jet, spray or fog nozzles, or by fixed or portable monitors preferably with interchangeable nozzles for water or foam jets. 5.1.3 The installed main pumping capacity shall be based on the total consumption in any one process area (defined as an area in which the fire can be confined without significant danger of the fire spreading to an adjacent area) of 818 m3/h at 10.35  barg simultaneously with the required flow rate at 10.35 barg to any group of tanks. The required flow rate to be supplied to the tankage area shall be min. 818 m3/h and shall be determined on the basis of the total consumption as needed for cooling of the adjacent tanks next to the tank under fire with inclusion of sprinkler waters. Each main pump shall have a pumping capacity of 818 m3/h. Standby pumps diesel driven with total capacity same as the main pumps shall also be supplied. All pump drivers shall have totally independent power supply. Driver of main and standby pump shall be sized at 110% of the maximum power absorbed by pumps at full load to avoid overloading if there is a pressure drop in the system at full capacity. A building of adequate size shall be provided to house fire water pumps. Adequite space for maintenance and suitable overhead crane with adequate capacity for heaviest load shall be provided. The motor driven main pumps shall come into service automatically and diesel driven pumps shall have on and off switches at the fire station and power station room (utility board).The jockey pumps shall maintain the pressure in the fire water line system to 10.35 barg, automatically. If a jockey pump is used in refinery, it shall be "spared" and both pumps shall have a capacity of 113m 3/h (500 gal/min) to compensate for leakages. (For pump station the capacity of jockey pump shall be 15m3/h)

OCTOBER, 2006 

NIOEC-SP-47-27(1)

5.1.4 For design purposes the flow velocity in the piping system shall not exceed 1.83m/s@ 10.35 barg. Fire hydrants shall be maximum 45 meters apart in process and utility area and maximum 60 meters apart in the off-site area, but their location generally will be determined in relation to the plant to be protected; all hydrants must be easily accessible. 5.1.5 Fire hose reels shall be located in each process unit and utility (Boiler area) normally 30-45m apart at certain strategic points. In general, hose reels are not required for protection of elevated platform or fin fans containing hydrocarbons. These areas will be protected by fixed water monitors. Outdoor hose reels shall be mounted on a frame to facilitate waist level operation. 5.1.6 In locations, such as LPG Storage and bullets, hydrogen plants, etc., where very large quantities of water in jet or fog forms are required, fixed monitors,  permanently secured to monitor hydrants shall be installed. All fixed wat er monitors shall be placed at ground level in order to enable easy operation and so as to provide effective cooling. All fixed water monitors shall be carefully placed to avoid unnecessary obstructions like pipe lines and support columns. However, monitors shall be at least 15m away from equipment to be protected. Use of portable water monitors is recommended in combination with fixed water monitors. Clear access must be provided for all fixed water monitors. The fire water system shall be  pressurized and maintained at a pressure of 10.35 barg by jockey pump. 5.1.7 Fixed water fog systems may be employed, extinguishing, cooling or restricting a fire in areas of high fire risk where immediate action is necessary. 6. DESIGN BASIS 6.1 Fire Water Demand

Maximum firewater demand for process units and tank farm area is calculated on the hereunder basis: Fire water requirements in tank farm 

It shall be calculated as follows: a.Water requirement for cooling of tanks, maximum three tanks other than tank under fire, shall be considered. - Half of the surface of the adjacent tanks, if the exposure tank is in the middle of two tanks. - One third of surface of the adjacent tanks, if the exposure tank is in the center of three tanks.  b. Water flow calculated for applying foam on a single largest tank under fire shall be considered. c. Firewater flow rate for supplementary stream shall be based on using two single hydrants outlet and two monitors. Total water requirement for tank farm area shall be (a) + (b) + (c).

OCTOBER, 2006  

NIOEC-SP-47-27(1)

Firewater requirement in process units Firewater demand shall be calculated as follows: a. Water requirement of spray system in a process segment.  b. Water requirement for monitors to cover a process segment (minimum two monitors)  plus two single outlet hydrants at a time. Total water requirement for process units shall be (a) + (b).

6.2 Firewater Application Rate 6.2.1 Process Unit Manual operated water spray system shall be provided for the following equipment: 



Pumps handling hot hydrocarbon operating at a temperature higher than flash  point. Only the mechanical part of the pump, which contains hydrocarbons, shall  be deluged. The water spray should be designed to envelope, as a minimum, the entire pump including the shaft, seals, and other critical parts. Optionally, the spray envelope may be extended 0.6 m beyond the pump periphery, and include suction and discharge parting flanges, check valves, gage connections, block valves, balance lines, and lubrication connections. The applications rate shall be not less than 20.4 l/min/m 2 of the projected envelope area at grade level. NFPA 15 should be consulted for other design requirements. Pressure vessels, drums and reactors. Firewater flow rate shall be 10.2 l/min/m 2 of developed surface.

6.2.2 Tank Farm Area 



The LPG pressure storage spheres, bullets and large separators shall be protected  by automatic water spray system. Firewater rate shall be 12.0 l/min/m2 of  protected surfaces. Water application density for tank cooling shall be 4.1 l/min/m2 of tank surface.

6.2.3 Hydrant and Monitors 

One single Hydrant outlet: 60m 3/h (950 l/m)



One monitor: 120 m 3/h (1900 l/m).

7. DESIGN REQUIREMENTS 7.1 Piping 7.1.1 The Piping Specification shall cover the piping layout, including water rates, size of lines, location of block and flushing valves, general location of hydrants, fire pump location, and design conditions. 7.1.2 Connection shall not be provided for permanent use of fire water other than for fire fighting.

OCTOBER, 2006 

NIOEC-SP-47-27(1)

7.1.3 Sufficient isolating valves and cross links shall be provided so that a section of the fire main can be taken out of service without interrupting supplies of water. In each  process unit area, utility area, and bund wall area isolation should be such that at least 50% of hydrants and hose reels remain in service. 7.1.4 All main block valves shall be operable from grade and shall be mounted in underground valve boxes, per Standard drawing no. NIOEC-SD-5013-1/1. Hand wheel extension details shall be according to standard drawing no. NIOEC-SD5013-1/1. Valve boxes shall be filled with removable insulating material to protect valve and pipe from frost. Valve boxes shall be large enough for easy access to valves for repair and removal. 7.1.5 Fire water distribution network shall be of loop and ring design. 7.2 Foam 7.2.1 Foam generators shall be based on mechanical air foam generation only. This system may comprise either a fixed installation or portable equipment. 7.2.2 All fixed foam installations should be designed to reduce time lag in charging service lines to a minimum, and provision made for draining all services after use. 7.2.3 Semi-fixed sub-surface foam injection system shall be provided for fixed roof tanks containing flammable liquids. Semi-fixed top pouring foam extinguishing system shall be provided for covered floating roof tanks containing flammable liquids and tanks containing high-viscosity hydrocarbons (such as refinery fuel oil)and slop oil . The system shall consist of foam discharge outlets, foam generators, lateral foam  pipes extended from outside bound walls. The lateral pipes shall be terminated with foam solution inlet-hose connections (2-1/2" British Instantaneous Coupling male) outside bound wall. Foam solution will be distributed from the system by fire truck(s). Semi-fixed sub surface and top pouring foam extinguishing system shall be designed and installed in accordance with NFPA Code No.11. Basically, one lateral pipe shall be provided for every two foam discharge outlets on the covered floating roof tanks. Piping inside the bound wall shall be above grade and foam solution inlet hose connections outside bound wall shall be at least 15m away from the tank to be protected. Foam generators of sub surface foam system shall be mounted on mobile fire trucks. Fixed RIMSEAL pouring foam extinguishing system shall be provided for floating roof tanks containing flammable liquids. This system shall complete with CF3I rim seal protection system. 7.2.4 For aviation fuel storage tanks with internal floating screen subsurface foam injection shall be used combined with inert gas blanketing. 7.2.5 In case of floating roof tanks, 45m dia. and above, hand railing shall be installed to wind girders for the safety of fire fighters when fighting rim fires. 7.3 Utility Stations

OCTOBER, 2006 

NIOEC-SP-47-27(1)

7.3.1 Utility Stations for steam, water and air shall be located throughout the operating areas, per NIOEC-SP-50-01. At least, one (1) water hose and one (1) steam hose shall be provided for each two (2) utility stations. Length of each hose shall be minimum 15 meters. 7.3.2 Steam lance hose assemblies should be carried on a suitable rack adjacent to the steam point. The hoses should be suitable for use with high pressure steam (20 bar steam) and should be electrically continuous or both ends of hoses bonded against static electricity. 7.3.3 The steam hoses shall be 3/4" size and 15m in length. They shall have a protective outer covering of woven wire mesh. They shall be suitable for 20 barg steam  pressure and be provided with 3/4" standard pipe thread male couplings on both ends. 3/4"- 300#. integral seat steel unions shall be used to join hoses to the 3/4" supply line. The same union is used to join hose lengths. 7.4 Steam Systems Snuffing steam shall be made available at furnace header boxes and fire boxes. 7.5 Storage tanks 7.5.1 Floating Roof Tanks: These shall be equipped with earth bonds from floating deck to tank shells. 7.5.2 Fixed water cooling system shall be provided for all tanks containing hydrocarbon in order to provide exposure protection against radiant heat from the fire, in addition to adequate spacing between tanks. The system shall consist of water cooling ring(s) with open cooling spray nozzles on the tank shell surface and on the top of fixed roof tanks, gated lateral pipes which is extended from the outside of bound wall and is branched off from the fire water main distribution line. Crude storage tanks only will be provided with the cooling ring divided in two sections. The system shall be manually activated. Shut-off valve(s) shall be placed at the outside of the bound wall and at least 15m away from the tank shell to be protected. Asphalt storage tanks shall not be equipped with any permanent fire fighting facilities, except for available high pressure water streams for cooling purposes. 7.5.3 Storage tank spacing shall be per NIOEC-SP-00-66 requirements. 7.6 General Stores (Work shop & ware House, Administration Buildings and Laboratories) Hose reels shall be connected to fire water mains and mounted on swivel or other suitable fittings on the basis of NFPA code 14. Each indoor hose reel shall consist of a cabinet, recess mounted for the Administration and surface mounted for other buildings, with 30 meters hose reel equipped with 1 1/2" hose and a 19mm nozzle. Each hose reel assembly shall incorporate a quick opening Lever operating on/off ball valve and terminate in a-1/2" gunmetal NST (National Fire Hose Connection screw Threads) female coupling. 7.7 Chemical Stores, Acid and Chemical Plants

OCTOBER, 2006 

NIOEC-SP-47-27(1)

Included in this general reference are all cases where the specified nature of the products and the system of segregation and storage adopted necessitates application of specific fire  protection methods. 7.8 CO2 extinguishing system CO2 Extinguishing System shall be provided for Gas Turbine Generator and Substation Building, the Gas Turbine enclosure in accordance with NFPA code No. 12 and on the  basis of Specification NIOEC-SP-47-32. CO2  extinguishing system shall also be  provided for “Battery Room” of substation .Where, under floor cable void is provided, CO2  distribution piping shall be extended to the cable void, no fire detectors are required in the cable voids but CO 2 extraction fan is required. For Remote Instrument Buildings (RIB) the same philosophy of substations should be applied. 7.9 Detection and Alarm System Fire detection system and alarm system shall be provided for Gas Turbine Generator and enclosure and the substation buildings with CO 2 Extinguishing system described in article 6.8. The indication of Fire alarm signal from CO 2  Extinguishing system shall be made nearest control room. Emergency warning and communication with the Fire Station will be made through Fire Telephone System for which separate design basis will be provided and therefore, excluded from this Specification. Fire detection system shall be provided for rim seal space of floating roof tank. 7.10 Fixed Water Spray System Fixed water spray system shall be provided for LPG spheres, bullets and large separators containing light oils likely to cause BLEVE (Boiling Liquid Expanded Vapor Explosion). The system shall consist of water spray ring with open spray nozzles; gated lateral pipes  branched off from the fire water main distribution line. Water application density shall be 12.0 1/min/m2 of protected surfaces, on the basis of  NFPA Code No. 15. The automatically actuated spray system shall be provided with pressure storage spheres and bullets. Dedicated system will be provided for each storage sphere and LPG  bullets for which respectively only one system will be provided. The system shall also  be manually activated. Shut-off valve(s) shall be placed at least 15m away from the equipment to be protected. 7.11 Fire Extinguishers 7.11.1 Extinguisher shall be furnished as follows:

Fire class A (ordinary combustible)

Extinguisher Size and Type 4kg multi-purpose dry chemical

B (flammable liquids and gases)

9kg and/or 50kg wheeled Potassium bicarbonate dry chemical

C (energized electrical equipment)

4kg multipurpose dry Chemical (6kg CO2 for power Station instead of BCF)

OCTOBER, 2006 

NIOEC-SP-47-27(1)

Each portable and wheeled extinguisher located outside shall be provided with a cover sheet suitable for direct sunshine. Based on experience from the existing refinery, the capacity of dry chemical extinguishers may be changed. 7.11.2 The various types of extinguishers to be provided in different areas of the refinery shall be as follows: 1) General Extinguishers shall be mounted on walls, columns, etc. unless the extinguishers are of wheeled type. They shall be installed on the hangers or in the brackets supplied. Extinguisher units weighting less than 18.2 kg shall be mounted so that the extinguisher top is not more than 1.2m above the floor. Extinguishers shall be located so that the basic maximum travel distance to extinguishers (a) applicable to flammable liquids, oils, gases, etc. is 15.25m; (b) applicable to ordinary combustible materials is 22.7m. 2) Process, utility areas shall be protected as follows: 9kg dry chemical extinguishers shall be provided along main access ways. On overhead structures, the extinguisher locations shall be near stairway landings. 9kg dry chemical extinguishers shall also be provided on overhead main  platform with stairway access. 9kg dry chemical extinguishers shall be located in pump and compressor areas. 50kg wheeled type dry chemical extinguishers shall be located at suitable  points as well as the installation of portable extinguishers. 3) Buildings and shelters shall be protected as follows: 4kg multi-purpose dry chemical extinguishers shall be located according to Para. (1) above. 4kg multi-purpose dry chemical extinguishers shall be located in the electrical substation and 6kg CO 2 extinguishers shall be located in the power station, and at least 9kg dry chemical extinguishers shall be provided outside the fenced enclosure gate for oil immersed transformers. 4) In the oil storage tank area, two (2) 9kg dry chemical extinguishers and one (1) wheeled type dry chemical extinguisher shall be provided for each corner of a dike except a small bounded area and be located outside the dike. 5) Extinguishers shall be provided for truck loading racks. One 9kg portable dry chemical extinguisher shall be provided for each island. One 50kg dry chemical extinguisher shall be provided for every four bays. 7.12 Special Applications Applications of fire-fighting systems to plants, areas or equipment not specially mentioned above shall be determined by their particular requirements as defined in Subsection 5, "Description of Systems". In this connection, the distance factor in the  piping characteristics of each system should be considered. Such applications cover systems for operation in cases of general fire.

OCTOBER, 2006 

NIOEC-SP-47-27(1)

7.13 Fire Station and Mobile Equipment Fire station shall be designed and constructed in accordance with the Contract requirement. Mobile equipment shall also be provided in accordance with the Contract requirements. 7.14 Fire Training Area and Facilities Fire training area shall be installed in order to provide training exercise against simulated incidents. Equipment in fire training area shall be furnished and installed by contractor. Arrangement of equipment shall be approved by NIOEC. 8. EQUIPMENT – SPECIFICATION

The following fire protection equipment used with water or air foam systems shall be  purchased, where such equipment is specified, subject to Company’s approval. 8.1 Fire Fighting Equipment 8.1.1 Fire Hydrants A.  All hydrants shall be Freeze-proof unless otherwise minimum temperature of site condition never reaches below zero. Hydrants shall be Standard American Darling Valve and Manufacturing Company, Model B-50-B (M.E.S.C. 96.25.10.701.1) or equivalent. B. Fire hydrants shall be cast iron (5 inch main valve), standard trim, compression type, self draining with two 2 1/2"-8NPT-MALE hose nozzle connections 180 apart and one 5" pumper connection. Pumper connection to be female round thread, complete with cap and chain, in accordance with British Standard B. S. S. – 336. Final inlet flange of the hydrant shall be 6" 250 Ib R. F.(ASME B 16.5) on the side flanged base (as per hydrants to be suitable for 14 barg working pressure with automatic drain valve, suitable for freezing condition. Operating stem nut to be pentagon, 1-1/2" point to flat. With suitable wrench. Operating steam nut to open left (counter clockwise). Trench depth to be 1.67 meters. Each fire hydrant and hydrant with monitor shall be equipped with 1" drain pipe to sewer line or other (as per note 4 of Standard drawing No. NIOECSD-5013-1/1). C. The 2-1/2" and 5" connections shall be located so that the distances between the  bottom of the connection caps and finished grade are a minimum of 0.5m and 0.25m respectively. The 5" pumper connection shall face the roadway wherever installed and shall be at right angles to the hose nozzle connection. D. Fire hydrants shall be installed in pits as per Standard drawing No. NIOEC-SD5013-1/1 and pits filled with removable, suitable insulating material to protect the hydrant and pipe from frost. E. Hydrants shall be located on the road side of all pipe lines or drainage ditches. The length of the 5" suction hose required between the hydrants and fire truck shall not exceed 4.5m where large pipe bends or drainage ditches may hinder access from hydrants to process areas or tank farms. Hydrants shall be located

OCTOBER, 2006 

NIOEC-SP-47-27(1)

near access ways or walkways across such obstructions. Where located on roadsides simple vertical crash posts shall be erected between road and hydrant. F. In tankage areas where fixed air foam laterals are installed, hydrants shall be located in relation to terminus of air foam laterals so that the total length of hose from hydrant to fire truck and from fire truck to foam lateral does not exceed 38m. 8.1.2 Valves for Fire Hydrants Valves for 2 1/2" outlet fire hydrants shall be of gunmetal, single outlet, suitable for above ground installation, solid wedge gate type, outside screw and yoke. Inlet shall  be 2 1/2" NPT FEMALE Compatible with 2 1/2" hose nozzle connection of each hydrant, Outlet to be 2 1/2", single lug instantaneous pressure release FEMALE coupling. 8.1.3 Hose Reel Hydrants – For Climates Subject to Freezing Weather A. Freeze-proof, self-drain hose reel hydrants shall be No. 140 National Type "A" American Foundry and Manufacturing Co. or equivalent. Fire Hose reel hydrants shall be 2" sizing throughout. B. Hose reel hydrants shall be all bronze (2" valve opening), compression type, self draining with one 2" NPT FEMALE hose reel nozzle connection and one 2"  NPT FEMALE inlet. Hydrants to be suitable for 14 barg working pressure, suitable for freezing conditions, hand wheel operation, counter-clockwise valve opening. Trench depth to be 1.67meter. 8.1.4 Pumps and Drivers A. Fire pumps shall be according to NIOEC-SP-46-16 and designed for 10.35 barg min. discharge pressure at rated capacity. The pressure rise at shut-off should not exceed 20 percent or 14 barg. Where the pressure can build up to exceed the design rating of the lines, a pressure relief valve discharging into the suction or source of supply shall be provided. Pumps shall be of horizontal construction. B. For diesel engine drivers for fire pumps, the fuel tank shall have sufficient capacity of 24 hours of continuous operation. The radiator should be equipped with a special electrical heater for winter time. Diesel driven pumps shall be installed indoors at a safe location. C. Continuous positive pump suction or a means of priming shall be provided. D. Suitable suction strainer shall be provided. The screen shall be cleanable with the  pumps in service. E. The main firewater pumps should be equipped for automatic and manual starting; the standby pump shall be push button start. 8.1.5 Hoses and Couplings Outdoor use Hose coupling shall be standardized as follows:

OCTOBER, 2006 

NIOEC-SP-47-27(1)

1) All outlet coupling shall be female and inlet coupling male, both conforming to BS-336. 2) Pressure connections for collapsible hose shall be 65= (2-1/2") conforming to BS-336 British Instantaneous Coupling (hereinafter called BIC) only. Hose coupling shall be of gunmetal alloy construction. Loose hose shall be provided in standard lengths and preoccupied as follows: 65mm collapsible hose in 25m lengths, with precompiled male and female 65mm BIC couplings. Buildings fire hose reel, rayon braid neoprene, working pressure 15.5 barg shall  be connected directly to fire water supply in the buildings.

Size In 1-1/2

I.D. Hose Length mm m 64 25

8.1.6 Fire Hose Reels for Yard Hydrants Hose reels shall be floor mounted, similar to the American Reeling devices # R-1 75-25 without crank, with 1 1/2" B2, 1 MALE pipe thread connections, complete with 25 meters of 1 1/2" I.D., x2 rayon braid neoprene tube and cover, 15.5 barg working pressure U.S. Rubber Style P999 general purpose hose and Powhatan brass 250B adjustable fog nozzle. Metal cover shall be 1mm steel, painted red. 8.1.7 Fixed Type Monitors Fixed type monitors shall have deluge fog and jet nozzle assemblies of the lever type. The main valve of the monitor hydrant shall be hand wheel operated. All monitors shall be hand wheel operated. All monitors shall be gun metal construction with a locking device suitable for unattended operation of the monitor; they shall be furnished with a combination straight stream fog nozzle with a water capacity of 120 m3/h at 7 barg inlet pressure.

Fire hydrants with monitor shall be equipped with a 5 inch main valve, standard trim, self draining valve, two 2 1/2" – 8 NPT MALE hose nozzle connections 180 apart and 2 1/2" outlet hydrant valves with instantaneous coupling, confirming BS336, a 4" , 250 Ib R.F flanged monitor outlet and elbow, valve, etc. as per NIOECSD-5013-1/1. Except the above, paragraph 7.1.1 and 7.1.2 shall be applied for the design of monitor hydrant. 9. INSPECTION & TESTS 9.1  The material fabrication and testing of all equipment shall be subject to inspection by the Purchaser and/or his designated representative. 9.2  The Purchaser's Inspectors shall have free entry to the Vendor's Shop at all times during fabrication or testing. 10. PREPARATION FOR SHIPMENT

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Preparation for shipment shall be in accordance with the following and Manufacture's standards. The manufacturer shall be solely responsible for the adequacy of the Preparation for Shipment employed in respect of materials and application, to provide

OCTOBER, 2006 

NIOEC-SP-47-27(1)

materials to their destination in ex-works condition and handled by commercial carrier systems.  NIOEC-SP-90-52

: NIOEC Specification for packing and packages

Note: Requirement of guarantee will be indicated in the Specification of individual fire fighting equipment for purchasing. This Specification shall not be used for  purchasing work, accordingly.