Routine Inspections
Detailed visual checks of pump assemblies, control panels, pressure relief valves, suction/discharge piping, and fuel systems to catch potential failure points before emergencies happen.
Flow & Performance Testing
Annual full-flow churn, 100%, and 150% capacity testing to verify performance against original design curves, along with weekly or monthly churn runs for automatic start systems.
Repairs & Overhauls
Swift troubleshooting and repair of mechanical seals, impellers, controllers, transfer switches, pressure switches, and engine components to restore your system to full operational status without delay.
Preventative Maintenance
Specialized care tailored to motor driver types—including oil changes, filter replacements, battery/charging system checks, and cooling line service for diesel engines, as well as electrical component inspections and shaft lubrication for electric motors.
Diesel Fire Pumps
Electric Fire Pumps
Fire pump systems require testing on weekly/monthly, quarterly, annual, and multi-year schedules to comply with NFPA 25 standards. Weekly or monthly no-flow (churn) tests ensure automatic start mechanisms function properly. Annual full-flow performance tests verify that the pump can still deliver its rated pressure and capacity.
Electric Pumps: Focus primarily on electrical infrastructure, including automatic transfer switches, control panels, circuit breakers, wiring integrity, and motor bearing lubrication.
Diesel Pumps: Require standard internal combustion engine maintenance alongside pump checks, including engine oil and filter changes, coolant line servicing, fuel tank moisture checks, and battery charging system testing.
During an annual flow test, technicians run the fire pump at churn (zero flow), 100% capacity, and 150% capacity. Water is discharged through a test header while pressure gauges and flow meters measure performance. The resulting data is plotted against the pump’s original factory curve to detect impeller wear or system degradation.
Fire pumps sit idle for long periods, which can lead to seized impellers, degraded mechanical seals, dead batteries, corrupted control wiring, or stale diesel fuel. Preventative maintenance identifies and resolves minor mechanical failures before an actual fire emergency occurs, while maintaining code compliance for insurance and local authority requirements (AHJ).
Common failure points include dead or weak starting batteries (on diesel units), faulty pressure switches, clogged fuel or cooling lines, packing gland seal leaks, and control panel relay failures. Regular inspection schedules catch these issues early to keep the system fully operational.
If your fire pump fails a performance or churn test, immediate action is required to ensure building safety, maintain code compliance, and avoid regulatory penalties.
Immediate Steps to Take After a Failed Test
Notify Key Stakeholders: Inform your local Authority Having Jurisdiction (AHJ / Fire Marshal) and your property insurance carrier immediately, as required by NFPA 25 standards.
Implement Impairment Procedures: If the failure compromises the entire fire suppression system, establish a temporary fire watch (trained personnel patrolling the premises) or arrange an alternative emergency water supply.
Diagnose and Repair: Certified fire protection technicians must troubleshoot the root cause—whether it’s a failed pressure switch, worn impeller, battery/engine failure on a diesel unit, or control panel fault—and complete the necessary repairs.
Re-test and Document: Once repairs are finished, the system must undergo a full re-test (including flow testing) to verify it meets its original performance curve. Submit the updated compliance reports to the AHJ and your insurer to lift the impairment status.
