ZSJA series of water flow indicator is uesed in automatic water spray extinguishing system.They can be installed in main water supply pipe or brand pipe.Then they deliver flow signals of one area,Signals can reach electric contronal box and also can be used for starting fire water pump control switch.

the series of water flow detection products what our company makes with time circuit ZSJZ(A model) or without time delayer circuit ZSJZ(B model),are of seven specifications such as 50(2") 65(2-1/2") 80(3") 100(4") 125(5") 150(6") 200(8") to serve different pipes, connecting ways: pipe threaded, welding type,flanged type and saddle type for users' choice.

Connection Type	Saddle Type
Model	ZSJZ/A
Nominal Diameter(mm)	50/65/80/100/125/150/200/250
Working Pressure(Mpa)	1.2 (12bar)
Delay Time(s)	2-90
Sensitivity(L/Min)	15~37.5
Contact Capacity	AC220V,5A/DC24V,3A

Connection Type	Flange Type
Model	ZSJZ/F
Nominal Diameter(mm)	50/65/80/100/125/150/200/250
Working Pressure(Mpa)	1.2
Delay Time(s)	2-90
Sensitivity(L/Min)	15~37.5
Contact Capacity	AC220V,5A/DC24V,3A

Connection Type	Thread Type
Model	ZSJZ/S
Nominal Diameter(mm)	50~150
Working Pressure(Mpa)	1.2
Delay Time(s)	2-90
Sensitivity(L/Min)	15~37.5
Contact Capacity	AC220V,5A/DC24V,3A

Connection Type	Welding Type
Model	ZSJZ/H
Nominal Diameter(mm)	50/65/80/100/125/150/200/250
Working Pressure(Mpa)	1.2
Delay Time(s)	2-90
Sensitivity(L/Min)	15~37.5