fire equipment preaction alarm valve is made by equipping the top of the outlet of the deluge alarm valve with a wet-type alarm valve of the same size

Name: preaction alarm valve

Model no.: ZSFG 100/150/200

Nominal diameter: 100mm 150mm 200mmNominal working pressure: 12 bar (1.2MPa)Strength test pressure: 48 bar (4.8MPa)

Friction drag: less than 0.02Mpa

Starting time: less than 15 seconds