What is the rated capacity of the pump?

The pump is designed to deliver 275 liters per minute (l/min).

What is the required suction lift capability?

The pump and primer must be capable of drafting water from a maximum suction lift of 7 meters.

How long should the pump be able to operate continuously?

The engine, cooling system, and fuel tank must support at least 2 hours of continuous operation at rated capacity.

IS 942

: 1982

Functional Requirements for 275 1/Min Portable Pump Set for Fire Fighting

CurrentSpecializedSpecificationFire Safety · Fire Fighting

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This standard specifies the functional requirements, materials, design, construction, and testing of a 275 liters per minute capacity portable pump set used for firefighting operations. It provides guidelines for mechanical and fire protection engineers to specify and procure lightweight portable equipment for initial fire response.

Functional Requirements for 275 1/Min Portable Pump Set for Fire Fighting

Quick Reference Values

Rated Capacity275 liters per minute (l/min)

Nominal Delivery Pressure0.4 MPa (approx. 4 kgf/cm²)

Maximum Suction Lift7.0 meters

Continuous Operation Requirement2 hours minimum

Fuel Tank CapacityAdequate for 2 hours continuous run at full load

Practical Notes

Always account for altitude and standard atmospheric conditions when field-testing the 7m maximum suction lift, as performance degrades at higher altitudes.

The priming system is critical for drafting from static water sources; routine maintenance checks must ensure it engages efficiently without air leakage.

Ensure the delivery valves and hose connections match standard delivery threads (typically 63 mm instantaneous couplings as per IS requirements).