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Sprinkler System Inspection Checklist (NFPA 25)
Quarterly and annual sprinkler system inspection checklist covering control valves, water supply, sprinkler heads, piping, and flow testing per NFPA 25.
NFPA 25Sprinkler System2-8 hours30 inspection items
Control Valves and Water Supply
- CheckboxVerify all control valves are open and locked or supervised
- CheckboxInspect OS&Y valve stem for proper thread engagement
- CheckboxCheck post indicator valves for correct open position
- CheckboxInspect fire department connection (FDC) caps and accessibility
- CheckboxVerify FDC check valve is not leaking
- CheckboxRecord static and residual water pressure at riser
Sprinkler Heads
- CheckboxVisual inspection of all accessible sprinkler heads
- CheckboxCheck for corrosion, paint, damage, or loading on deflectors
- CheckboxVerify correct temperature rating for location
- CheckboxConfirm 18-inch clearance below all sprinkler deflectors
- CheckboxCheck for missing or detached escutcheons
- CheckboxVerify spare sprinkler head cabinet has correct quantity and types
Piping and Hangers
- CheckboxInspect visible piping for corrosion, leaks, or mechanical damage
- CheckboxCheck pipe hangers and supports for secure attachment
- CheckboxVerify proper pipe pitch for drainage
- CheckboxInspect branch line restraints in seismic areas (if applicable)
- CheckboxCheck for unauthorized modifications or obstructions
- CheckboxInspect auxiliary drains and drum drips
Alarm and Flow Testing
- CheckboxConduct waterflow alarm test at inspector test connection
- CheckboxVerify alarm activates within 90 seconds of flow
- CheckboxConfirm alarm signal received at central monitoring station
- CheckboxTest vane-type and pressure switch waterflow devices
- CheckboxRecord flow test results (static, residual, and flow pressure)
- CheckboxTest fire pump (if applicable) per NFPA 25 Chapter 8
Dry and Pre-Action Systems (if applicable)
- CheckboxVerify air or nitrogen pressure is at correct level
- CheckboxTest low-air supervisory alarm
- CheckboxConduct full trip test of dry valve
- CheckboxRecord trip test time and water delivery time
- CheckboxInspect air compressor or nitrogen generator
- CheckboxCheck priming water level in dry valve
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