Alarm Valve is a double seated clapper check valve
with grooved seat design, which ensures positive
water flow for alarm operation and is designed for
installation in wet pipe sprinkler system. External
bypass prevents false alarm under all supply
pressure condition. In the event of variable pressure
condition, false alarm is prevented with the
provision of retard chamber, thus the design allows
for installation under both variable and constant
supply pressure condition.
Operation of one or more automatic fire sprinklers
causes the water to flow into the sprinkler system
causing the alarm valve to open, allowing continuous
flow of water into the system and transmittal of
alarm, both electrical and mechanical.