Fire protection systems are only as reliable as the equipment behind them—and at the heart of that protection lies the fire pump. Fire pumps play a critical role in ensuring water is delivered at the right pressure when a sprinkler or hydrant is activated. However, like any mechanical equipment, fire pumps must be tested regularly to verify that they will work in an emergency.
One key test required by NFPA 25 (Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems) is the weekly no-flow test. This article explains what a fire pump weekly no-flow test is, why it matters, and how it should be performed according to industry standards.