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Every fire pump has to be tested at acceptance and then periodically. Testing verifies that the pump is still in good working order and can meet its original design criteria. There are a couple of acceptable arrangements to allow proper testing.
A test header with an adequate number of hose valves can be supplied. When the pump is tested, water is flowed through the fire pump installation out to the nozzles connected to the valves on the hose header. Measurements are taken using a "pitot tube". Depending on the rating of the pump, consideration has to be given to the discharge of the volume of water.
A test meter can be used to measure the output of the pump. There are specific arrangements allowed by NFPA 20, and the manufacturer of the test equipment. These requirements have to be followed to insure proper measurement.
© Hughes Associates,Inc. 2012