Sprinkler System Deluge Valve, Alarm Check Valve (ZSFG)
The deluge alarm valve
is the ancillary facility of sprinkler system and it often cooperates
with automatic fire alarm system to achieve remote control. It allows
water flow to sprinkler unidirectionally and alarms at the same time.
valve body was divided into three cavities: upper cavity, under cavity
and control cavity. When a fire happens, the fire alarm system probes it
and starts the solenoid valve to make the pressurized water in control
cavity flows out. Thus pressure in control cavity drops, valve flap
opens and water flows to system pipe and was transported to sprinklers
when force on valve flap assembly applied by rocker is smaller than that
applied by water supply. Besides, water motor alarm works and pressure
switch motions to start alarms.
is widely used in wet deluge system, dry deluge system, pre-acting
system, water mist and drencher system. It is also applied with foam
extinguishing system to constitute the foam spray system and applied in
explosive and flammable fire disasters.