Wet alarm valve pressure switch does not move what causes
Pressure switch is a fire alarm to the main alarm of the alarm signal, wet alarm valve after the start of the pressure switch does not alarm the main reason to check the valve body is blocked, or pressure switch failure.
Start a part of the water will first enter the wet alarm valve delay device, the delay is full, the water will enter the hydraulic alarm and pressure switch.
Wet alarm valve is a need to control the start of the sprinkler system, when the scene fire protection zone nozzle due to high temperature burst after the wet alarm valve will automatically start
