Purpose Of Alarm Check Valve

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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

The Purpose Wet Alarm Check Vlave

When a fire breaks out, the closed nozzle sprays water. Since the water pressure balance hole is too late to replenish water, the water pressure above the alarm valve drops. At the same time, the water enters the delay device, pressure switch, hydraulic alarm bell and other facilities along the annular groove of the alarm valve, and sends out a fire alarm signal and starts the fire pump.

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: How To Order ?

A: Step 1, please tell us what model and quantity you need;

Step 2, then we will make a Pl for you to confirm the order details; Step 3, when we confirmedeverything, can arrange the payment; Step 4, finally we deliver the goods within the stipulated time.

Q: When will make delivery ?

A: Delivery Time

-Sample Order: 1-3 days after receipt of the full payment.-

Stock Order: 3-7days after receipt of the full payment

-OEM Order: 12-20days after receipt of the deposit.

3.After-sales Service

5 year warranty for all kinds of products;

lf you find any defective accessories first time, we will give you the new parts for free to replace in thenext order, as an experienced manufacturer, you can rest assured of the quality and after-sales service.

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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