... ,water motor gong,short pipes,ball valves, eletrmagnetic valve,etc Deluge Alarm Valve Deluge valve is available in deluge system, water curtain system ... of Flanged Screw Hole (mm)Through-hole of Bolt (mm)Electromagnetic ValveZSFM50501.2550×360×600φ1254×φ18DC24V, 0.5AZSFM1001001.2680×480 ... .5AZSFM1501501.2810×550×980φ2408×φ22DC24V, 0.5A Deluge alarm valve