Wet Alarm Check Valve For Fire Fighting

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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

The wet alarm valve is a one-way flow control system with a check valve with an alarm function. It is responsible for starting and controlling the fire extinguishing process in the entire system and is one of the key components of the system.Without considering the automatic fire alarm system, the sprinkler system will alarm independently through the wet alarm valve. After the pressure behind the valve changes, the alarm valve will open, and some water will enter the delay device. After continuous water injection, the hydraulic alarm bell will be activated. Thereby play an alarm role.

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")

The Parts Of Wet Alarm Check Vlave

Pressure gauges,

Retarders,

Pressure switches,

Hydronic bells,

Fittings,

Valves.

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.

Q:How to have an order?

A:Before customers have an order, please tell us more details of the products you required which are good for us to introduce you or help you choose the best product.

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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