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IS 5714:1981 is the Indian Standard (BIS) for hydrant stand-pipe for fire fighting. This standard specifies the requirements for materials, dimensions, construction, workmanship, finish, and performance of hydrant standpipes used for firefighting purposes. It covers both single and double outlet types, detailing aspects like inlet/outlet couplings and hydrostatic pressure testing.
Specification for Hydrant Stand-Pipe for Fire Fighting
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
Practical Notes
! Ensure the standpipe's inlet coupling (e.g., bayonet or screw type) is compatible with the local underground hydrants before procurement.
! Regular inspection of washers and moving parts is critical to ensure a proper seal and swift operation during an emergency.
! Aluminium alloy standpipes are lighter for portability, but gunmetal or stainless steel offer superior durability and corrosion resistance in harsh environments.
Covers the instantaneous couplings used on standpipes, but not the complete standpipe assembly.
NFPA 1963:2019National Fire Protection Association (USA)
LowCurrent
Standard for Fire Hose Connections
Specifies the threaded connections (e.g., NST) used on fire appliances, which is functionally different from the IS scope.
Key Differences
≠Outlet Connection Type: IS 5714 specifies 63 mm instantaneous 'snap-on' couplings (as per IS 903). In contrast, German standard DIN 14375 specifies Storz 'quarter-turn' couplings, and US standards (NFPA 1963) specify National Standard Thread (NST) screw-on couplings.
≠Inlet Connection: The base of the IS standpipe has a female round thread (as per IS 4643) to mate with the underground hydrant outlet. UK standpipes use different threads (e.g., London Round Thread) specific to the water authority, and the base design is not nationally standardized in the same way.
≠Operating Mechanism: IS 5714 standpipes typically feature an integrated 'T' handle or wheel on the head to operate the hydrant valve spindle. The traditional British system often uses a separate 'key and bar' that is inserted through the standpipe head.
≠Material Specification: While all standards require corrosion-resistant alloys, the specific material designations differ. IS 5714 refers to Indian Standard grades like 'LTB-2' gunmetal (IS 318), whereas European standards refer to EN material grades (e.g., CuSn5Zn5Pb5-C / CC491K).
Key Similarities
≈Core Purpose: Both IS 5714 and its international counterparts (like DIN 14375) define the requirements for a portable apparatus used to connect to a subterranean fire hydrant to provide one or more valved, above-ground outlets for fire hoses.
≈Hydrostatic Pressure Testing: All standards mandate a hydrostatic proof pressure test to ensure the integrity of the standpipe body and its seals. The core principle of testing for leakage at a pressure significantly above the working pressure is universal.
≈Component Structure: The basic design is consistent across standards, comprising a base (inlet connection), a vertical barrel/tube, and a head assembly that houses one or more controllable outlets.
≈Material Class: There is a universal requirement for the use of non-ferrous, corrosion-resistant metals such as copper alloys (gunmetal/bronze) or specific high-strength aluminum alloys for all water-contacting components to ensure operational reliability and a long service life.
Parameter Comparison
Parameter
IS Value
International
Source
Hydrostatic Body Test Pressure
2.1 MPa (21 kgf/cm²) for 2.5 minutes
2.4 MPa (24 bar) for 2 minutes
DIN 14375:2018
Nominal Outlet Size/Type
63 mm Instantaneous Male Coupling (to IS 903)
Storz Coupling Size 75-B or 52-C
DIN 14375:2018
Nominal Inlet Connection
63 mm Round Thread (to IS 4643)
Standardized claw/bayonet for German hydrants (to DIN 3221)
DIN 14375:2018
Primary Body Material (Example)
Leaded Tin Bronze, Grade LTB-2 (as per IS 318)
Copper-Tin-Zinc-Lead Alloy: CuSn5Zn5Pb5-C (as per EN 1982)
DIN 14375:2018
Swivel Head
Permitted, shall be capable of swivelling 360 degrees
Head must be rotatable through 360 degrees
DIN 14375:2018
Nominal Height (Double Outlet)
900 mm (from inlet flange to outlet centerline)
Not strictly defined; overall length is specified. E.g., ~1100mm overall for a common model.
DIN 14375:2018
⚠ Verify details from original standards before use
Key Values4
Quick Reference Values
Hydrostatic test pressure (body)2.1 MPa (21 kgf/cm²) for 2.5 minutes
Nominal bore of standpipe63 mm
Inlet connection standardMust conform to IS 903
Outlet connection type63 mm female instantaneous coupling
What is the standard test pressure for a hydrant standpipe?+
The body must withstand a hydrostatic pressure of 2.1 MPa (21 kgf/cm²) for a period of 2.5 minutes without any leakage, as per Clause 7.1.
What type of connections are specified for the standpipe?+
The standard specifies a 63 mm male inlet and one or two 63 mm female instantaneous outlets, all conforming to IS 903.
What are the primary materials used for making the standpipe?+
The body is typically made from aluminium alloy (as per IS 617) or stainless steel. Couplings are often made of leaded-tin bronze (gunmetal) conforming to IS 318.