What are the performance requirements for a fire pump?

The pump must deliver at least 150% of its rated flow at no less than 65% of its rated head, with a shut-off (zero flow) head not exceeding 140% of the rated head (Clause 5.1.2).

How often should a diesel fire pump be test-run?

Weekly, for a minimum of 30 minutes, to ensure it will start and run smoothly when needed (Clause 10.2.1, Table 1).

What is the purpose of a jockey pump?

A jockey (or pressure maintenance) pump is a small pump used to maintain pressure in the fire sprinkler system, compensating for minor leaks and preventing the large main fire pump from starting unnecessarily (Clause 5.4).

What is the minimum required capacity for a diesel pump's fuel tank?

The fuel tank must hold enough fuel for the engine to run continuously at full load for at least 8 hours (Clause 6.3.3.4).

IS 15301

: 2003

Installation and Maintenance of Fire Fighting Pumps - Code of Practice

CurrentEssentialCode of PracticeBIMFire Safety · Fire Fighting

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This code of practice provides guidelines for the proper installation and maintenance of fire fighting pump systems, including centrifugal, vertical turbine, and jockey pumps. It covers requirements for pump selection, drivers (electric motors and diesel engines), controllers, and piping arrangements. The standard also details procedures for acceptance testing and outlines periodic maintenance schedules to ensure system reliability.

Installation and Maintenance of Fire Fighting Pumps - Code of Practice

Quick Reference Values

Maximum pump shut-off head140% of rated head

Minimum pump head at 150% rated flow65% of rated head

Maximum flow velocity in suction pipe2.4 m/s

Minimum diesel engine test run duration (weekly)30 minutes

Minimum fuel tank capacity for diesel driverSufficient for 8 hours of continuous operation

Jockey pump start pressure0.7 kg/cm² below system static pressure

Main pump start pressure (electric)0.35 kg/cm² below jockey pump start pressure

Practical Notes

Suction piping design is the most critical aspect; ensure correct sizing, routing, and submergence to prevent cavitation and air entrainment, which are common causes of pump failure.

Pay close attention to the pressure settings for the jockey pump and main pumps. Incorrect settings can cause frequent cycling (short-cycling) or a failure to start under fire conditions.

For diesel-driven pumps, weekly test runs and diligent battery/fuel maintenance are non-negotiable for ensuring reliability during a power outage.