Pre-Action fire sprinkler system uses concept of having dry pipe sprinkler system. Water is withheld from sprinkler piping by a Pre-Action Valve. Pre-Action system generally requires two separate fire detection signals in order to operate. Thus the systems are effectively designed for water sensitive areas that require protection from inadvertent water flow into the sprinkler system piping. It is a pre-assembled Pre-Action System enclosed in a self-contained cabinet. It can be configured as single or double-interlock. The system typically consists of deluge pre-action valve, riser check valve, pre-action trim, fail safe valve, butterfly valve, pressure switches, solenoid valve, Motor water gong bell, air compressor and a releasing panel. It is compact and aesthetically looking good. It is easy to install.
