UL/FM Listed Fire Pumps

A short guide to UL/FM Listed Fire Pumps

What a fire pump set includes

A fire pump installation normally has a main pump driven by an electric motor or a diesel engine, a small jockey pump, a listed controller, pipework and valves, and a test connection. The set is sized to the flow and pressure that the hydraulic design of the building needs.

Why a jockey pump is fitted

A jockey pump keeps the system at working pressure. Small leaks or pressure changes are handled by the jockey pump, so the main pump starts only when there is a real demand for water.

Electric or diesel

Electric pumps suit sites with a reliable power supply. A diesel engine set is often added as a standby where the power supply cannot be relied on in an emergency. The applicable code and the local fire authority decide whether a second source or a diesel set is required for a given building.

Controllers and alarms

The controller starts the pump automatically when pressure falls and allows manual start and test. Typical alarm signals include pump running, power failure and phase problems. Each controller needs its own pressure sensing connection, and regular run tests are part of maintenance.

What to have ready before you ask for a quote

• The required flow and pressure from the hydraulic design.
• The water source and suction tank details.
• The power supply available at the pump room.
• The pump room size and ventilation, especially if a diesel set is planned.

This is general information. The governing code, the project design and the local fire authority decide the exact requirements for your site.

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