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
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
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.