Wet System Alarm Check Valve

Product Introduction:

When a fire breaks out in the protected area of the automatic sprinkler system and the ambient temperature of the fire scene rises, the glass ball on the closed nozzle bursts (or is easily fused and financialized), and the nozzle opens to spray water to extinguish the fire. At this time, due to the drop in water pressure of the pipe network on the outlet side of the wet alarm valve, a pressure difference is formed, the valve disc assembly is opened, and the water source water is continuously replenished to the pipe network to extinguish the fire. A certain water pressure impacts the hydraulic alarm bell and sends out a continuous alarm sound. The pressure switch acts to connect the electrical contacts and the control center to give an alarm with sound and light, and at the same time start the main water supply pump for fire extinguishing.

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Description

Technical Parameters

Wet Alarm Check Vlave

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 usually in standby state, the pressure pipe filled with water. When the fire starts and environmental temperature rise, lead to the fire sprinkler sensitive element (glass ball) action, sealing components off, auto start the wet system, water directly sprayed into the fire area and send alarm signals to the control center. It's widely used in some fire danger places such as warehouse, hotel, mall, office or high building and garage etc.warehouses, hotels, shopping malls, hospitals, theaters, office buildings, high-rise building and garage.

Specification

Material	Body	Ductile iron
	Clapper	SS304 w/NBR
	Pipes	SS304
	Ball valve & strainer & check valve	Brass
	Water motor gong	SS304
Working pressure	12 bar
Sealing testing pressure	24 bar
Applicable temperature	4°C to 70°C
Installation	Vertically
Flow switch contact capacity	DC24V,0.5A
Connection	Flange × Flange
Available Size	DN80 thru DN250 (3" thru 10")

FAQ

Q:Is the sample provided for free?

A:A few small products like sprinklers decorative covers can be provided for free, but buyers pay for freight. Other products need to be confirmed.

Q:What is the production time of the sample?

A:Generally speaking, it isn't a large-scale purchase, and the lead time about 15 working days.Of course, having an urgent order, please reconfirm with us.

Q:How to mail the samples?

A:Small samples are usually sent by express (DHL, UPS, FEDEX, TNT). If the buyer has other opinions, both parties can discuss with each other.

Order Information

Dear Customer,

Before ordering, please contact with our sales team to discuss order information, such as Model Number, Flow Rate, Material, Control Ways, Package,Etc.

If you have any other requirements or wanna know more info about our products, welcome to contact as well. Our Sales team and Technical Department are willing to support you.

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Features

1) Ductile iron construction valve body,less weight and extra strength.

2) Easy maintenance just require to disassemble the valve cover .

3) The all moving parts can be serviced without removing the valve from the installed position.

4) Simple design for easy installation and operation.

5) Vertical installation.

6) CCCF certificated.