Fire pumps are essential for fire protection systems, especially in large buildings like high-rises and warehouses that rely on water-based or interconnected fire suppression systems. These pumps deliver the necessary water pressure to extinguish fires, as the regular water supply is often not sufficient enough to maintain adequate pressure during a fire. Regular testing and maintenance are important to ensure fire pumps operate correctly in emergencies.
The frequency of fire pump testing depends on several factors, including local regulations, building codes, and the type of fire pump system installed. General guidelines suggest that fire pumps require, at a minimum, weekly, monthly, or annual inspections, and should be routinely maintained by a fire protection company.
Weekly Fire Pump Inspection Checklist
Pump House
- Ensure the temperature is maintained at a minimum of 40° F (4° C).
- Check for and eliminate any excessive water accumulation on the floor.
- Verify that the coupling guard is securely in place.
Electrical Systems
- Confirm that the pump suction, discharge, and bypass valves are fully open.
- Inspect all piping for leaks and address any found.
- Verify that the suction line pressure gauge reading falls within the acceptable range.
- Ensure the suction reservoir has the required water level.
- Confirm that wet pit suction screens are unobstructed and correctly positioned.
- Ensure that the waterflow test valves, the hose connection valve, and the line to the test valves are closed and free of water.
Electrical Systems
- Check that the controller pilot light (power on) is illuminated.
- Confirm that the transfer switch normal pilot light is illuminated.
- Ensure the isolation switch is closed for the standby (emergency) power source.
- Verify that the reverse phase alarm pilot light is off, OR the normal phase rotation pilot light is on.
- Check that the oil level in the vertical motor sight glass is within the acceptable range.
- Ensure that power is supplied to the pressure maintenance (jockey) pump.
Fire Pump System Types
The type of fire pump system and its power source can affect the frequency of electric pump testing. Diesel-powered pumps may require more frequent testing than electric pumps. Electric fire pumps require weekly testing in specific circumstances, such as when they serve systems beyond the fire department's pumping capacity.
Fire pumps should be inspected and maintained regularly in addition to regular testing. This includes checking for leaks, corrosion, and other signs of wear and tear. Any necessary repairs or replacements should be made promptly.
By following these guidelines, building owners and facility managers can ensure that their fire pumps are in good working order and ready to respond in the event of a fire. As a preferred fire protection company, CertaSite can help with fire pump inspections.
