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The FirePause 150mm Wet Alarm Check Valve is the key control valve for wet-pipe sprinkler systems. When one or more sprinkler heads open, water flow unseats the clapper, allowing flow to the system while simultaneously diverting water through the retard chamber to the water-motor gong or pressure switch, triggering the alarm.
For optimal safety, commercial extinguishers should be inspected monthly and professionally serviced annually as per strict fire safety standards.
Most dry chemical extinguishers last between 10-12 years if maintained correctly, but the propellant and cylinder integrity must be checked regularly.