Wet Alarm Check Valve Ductile Iron Body Material

Wet Alarm Check Valve Ductile Iron Body Material
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 alarm check valve is a water flow alarm device designed for vertical installation in the main supply to a wet pipe sprinkler system. When a flow of water from the system equals or exceeds that of a single sprinkler, the valve is to actuate a fire alarm.Alarm Check Valves are divided seat ring, rubber faced clapper, check type water-flow alarm valves which are intended for use in wet pipe (automatic sprinkler) fire protection systems. They are designed to automatically actuate electrically and/or hydraulically operated alarms when there is a steady flow of water into the system which is equivalent to the discharge rate of one or more sprinklers.

 

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 it OK to OEM ?

A:A: Yes. Please inform us formally before our production and confirm the design and other requirements firstly .

 

Q:How many agents the company currently has overseas?

A:Currently we have 2 agents abroad. One in Israel and one in Maldives.

 

Q: What is your term and payment?

Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.


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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Quanzhou Forede Firefighting Equipment Co.,Ltd
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