NFPA 25 Inspection Guidance for Dry and Pre-Action Sprinkler Systems

A requirement of NFPA 25, 14.2 (the standard for fire sprinkler inspections) is that every three years you are required to do the following:

  • Every three years and whenever the system is altered, the dry pipe valve or pre-action valve shall be trip tested with the valve fully open and the quick opening device, if provided, in service.
  • The time required for water to pass through the inspectors test shall be measured and recorded.
  • The system shall be left with pressurized water long enough for leaks (if any) to be determined.
  • All low points in the system shall be drained.

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