Wet Alarm Valve of Sprinkler System for Fire Fighting EquipmentIntroduction:ZSFZ Wet alarm valve is the key component of automatic sprinkler system. It consist of wet alarm valves, retard, water alarm, and other components (such as pressure switches, flow meters, closed head etc.). The system usuall......
Model | ZSFZ80 | ZSFZ100 | ZSFZ125 | ZSFZ150 | ZSFZ200 | ZSFZ250 |
Norminial diameter(mm) | 80 | 100 | 125 | 150 | 200 | 250 |
Working pressure(Mpa) | 1.6Mpa | |||||
Sealed test(Mpa) | 3.2Mpa | |||||
Strength test(Mpa) | 6.4Mpa | |||||
Flow rate(L/min) | 15<Q<60 | |||||
Retard alarm time(s) | 5~90 | |||||
Friction resistance(Mpa) | ≤0.035 | |||||
Height of alarm valve(mm) | 250 | 260 | 265 | 270 | 370 | 430 |
Outside diameter of flange(mm) | 200 | 220 | 250 | 285 | 340 | 405 |
Inside diameter of flange screw hole(mm) | 160 | 180 | 210 | 240 | 295 | 355 |
Diameter of screw hole(mm) | 8 | 12 | ||||
Quantity of screw hole | 18 | 22 | 26 |