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Wet Alarm Check Valve With Pressure Switch For Fire Alarm System

China Winan Industrial Limited certification
China Winan Industrial Limited certification
WINAN's products are very good, the materials and craftsmanship of the products are very good, we hope to reach cooperation with WINAN to create a better future

—— Amanda

Our company has been cooperating with WINAN for nearly 3 years, and the overall effect of the products has been very good. I don’t think we will change other factories to produce fire protection products.

—— BILL-purchase

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Wet Alarm Check Valve With Pressure Switch For Fire Alarm System

Wet Alarm Check Valve With Pressure Switch For Fire Alarm System
Wet Alarm Check Valve With Pressure Switch For Fire Alarm System Wet Alarm Check Valve With Pressure Switch For Fire Alarm System

Large Image :  Wet Alarm Check Valve With Pressure Switch For Fire Alarm System

Product Details:
Place of Origin: Guangdong,China
Brand Name: WINAN
Certification: CCCF/ISO
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: Negotiate
Packaging Details: crate
Delivery Time: 30-45
Payment Terms: L/C, T/T, Western Union
Supply Ability: 500 sets per month
Detailed Product Description
Nominal Diameter: Dn80 Dn100, Dn150, Dn200 Rated Working Pressure: 1.2MPa Or 1.6MPa
Sprinkler System Type: Wet Type Matched Sprinkler: Closed
Model Number: ZSFZ Color: Red
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fire hydrant valve


fire check valve

Wet Alarm Check Valve For Fire Alarm System

Wet Alarm Check Valve Introduction:

The ZSFZ series wet alarm valve is a check valve that only allows water flows unidirectionally and
drive the matching part to alarm at prescribed pressure and flow. It constitutes the sprinkler
system with water flow inductor, pressure switch and sprinklers. This valve is divided into two sides
by a valve flap. The above side is connected with system pipeline ant the underside is connected
with water supply. The valve flap will open only when the pressure between the two parts reach a
certain level.

Working Principle:
The alarm valve is always on a set condition the system side is full of pressurized water. The heat
sensitive component on the sprinkler will blast and spray automatically when there is fire
somewhere. Thus the pressure at system side will reduce and then valve flap opens because of
pressure difference. One hand the water supplied to system side, on the other hand a small part of
water flows to delayer and reach water motor alarm finally to make it alarm. The pressure switch
turns pressure signal to electric signal and start fire pump and auxiliary fire-fighting equipments to
put out the fire. Water flow inductor will also work and show the position of fire.



1. Widely use in office, school, kitchen and warehouse;
2. Work by temperature sensitive;
3. Vairous types to choose;
4. Easy install and use.
5. OEM and ODM available


Characteristics and Functions:

Model ZSFZ
Type Wet fire alarm valve
Material Brass, Cast Iron
Norminal diameter DN100,DN150, DN200.
Norminal working pressure 12bar~16bar
Strength test pressure 4.8Mpa
Flux(l/min) 15s
Structure Safety fire alarm system
Power Hydraulic fire alarm system
Pressure High Pressure fire alarm system



Model Norminal Diameter(mm) Norminal Working Pressure(MPa) Body Height(mm) Flange Outer Diameter (mm) Water Pressure Reduced Drive Time(s)
ZSFZ100 DN100 1.2~1.6 250 220 <0.07

DN150 1.2~1.6 270 285 <0.07

DN200 1.2~1.6 370 340 <0.07



Wet Alarm Check Valve With Pressure Switch For Fire Alarm System 0


1. Do you offer free sample for your clients?

Yes, we offer free sample for many of the products

2. What's the MOQ of your products?

Our MOQ is one (1) piece/set.

3. Are you manufacturer with your own factory?

Yes, we are the manufacturer for more than 20 years

4. What's your payment terms?

We accept T/T, L/C, Western Union, Paypal,etc.

5. How long is the delivery time?

Usually around 15 days after payment.

6. Do you have technical support?

Yes, we have a professional engineering team.

7. Do you have warranty?

Yes, all products have one year warranty.

8. Can you accept OEM?

Yes, we do customized design for our clients.


What we can do for you?

1)Brass fire hydrant valve;
2)Professional manufacturer;
3) We can supply these prodocts in different sizes
4) Good fire hydrant price

(5) We can offer ISO 9001-2015 certification.

(6) We can offer fast delivery time and good service.

Contact Details
Winan Industrial Limited

Contact Person: Sales Manager

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