Wet alarm valve is a one-way only allow water flow into the water spray system and a one-way valve under prescribed flow alarm.

 

Wet alarm valve is a part of wet pipe sprinkler system which using automatic fire sprinklers installed along a piping system containing water and connected to a water supply so that water is discharged immediately from sprinklers opened due to heat from a fire. using automatic fire sprinklers installed along a piping system containing water and connected to a water supply so that water is discharged immediately from sprinklers opened due to heat from a fire.

Wet alarm valve, delayer, hydraulic alarm, sprinkler and fire water supply system connection of automatic spraying fire-extinguishing system. It is important in automatic spray extinguishing system alarm control valve.
 

Components:
 

1) wet alarm valve: only allow water flows into water spray system and single direction under the provisions of traffic police.

2) delayer: hydraulic alarm delay action time, reduce the false alarm caused by pressure fluctuation.

3) hydraulic alarm: after system boot, can make noise hydraulic drive type alarm device.

4) pressure switch: alarm valve, the pressure switch action on electrical contacts.

5) alarm valve: bar condition for normally open, inspection, maintenance and repair to close the valve.

6) try alarm valve: just open the valve in debugging, maintenance, to determine the system work.

7) water drain valve: row after the valve pipe network water, to repair or replace the nozzle.

Wet alarm valve main form: