Fire pumps are also needed if fire protection water supply is provided from a ground level water storage tank.
Fire pumps may be powered either by an electric motor or a diesel engine, or, very occasionally a steam turbine. If the local building code requires power independent of the local electric power grid, a pump using an electric motor may utilize, when connected via a listed transfer switch, the installation of an emergency generator.
The fire pump starts when the pressure in the fire sprinkler system drops below a threshold. The sprinkler system pressure drops significantly when one or more fire sprinklers are exposed to heat above their design temperature, and opens, releasing water or alternatively when other firefighting connections are opened, causing a pressure drop in the fire fighting main.
If you are evaluating a new sprinkler system, need service for an existing system, or are interested in an inspection service contract that ensures adherence to national, state and local code requirements, Absolute Protective Systems, Inc. will provide the expert assistance you need.