China Zsfz Alarm Valve Sprinkler System Wet Alarm Check Valve, Find details about China Alarm Check Valve, Wet Alarm Valve from Zsfz Alarm Valve Sprinkler System Wet Alarm Check Valve
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 |