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Fire Sprinkler Alarm Check Valve

  • Xiamen, China

  • 5000 Sets/Month

  • L/C, T/T, D/P, Western Union, Paypal

  • ZSFZ

  • Red Painting

  • 3"/4"/5"/6"/8"/10"

  • 1.6MPa

  • Flange

  • Retard Chamber, Water Motor Gong, etc.


  • Standard Export Package

  • 3"-10"

  • Quanzhou, Fujian

  • 8481804090

  • Closed

  • Wet Alarm Valve

  • Can′t Automatically Opened and Closed

  • Wet Fire Sprinkler System

  • Seat Type

  • 80mm-250mm

Fire Sprinkler Alarm Check Valve

Alarm Check Valve is core element in wet pipe fire sprinkler systems. It serves a dual purpose which prevents a reverse flow of water (non-return), also provides for the use of the water motor gong. Meanwhile, in the event of variable pressure condition, false alarm is prevented with provision of retard chamber at the external bypass.

Standard: ANSI/ BS/ GB
Connection: Flanged as ANSI B16.1/ EN 1092-2
Installation: Vertical
Test: Factory hydro test 350 psi (2.4 MPa)
Temperature: 4°C to 70°C
W. pressure: 175/ 300 psi (1.21/ 2.07 MPa)
Surface: FBE coating as AWWA C550

Main Parts
Body Ductile Iron Cover Ductile iron
Disc Ductile iron / brass + EPDM Stem SS304/galvanized pipe
Seat Bronze/Cast iron Accessories Standard trim & accessories, Retard chamber,
Alarm pressure switch, Water motor gong, etc.

Technical parameters:
Model ZSFZ80 ZSFZ100 ZSFZ125 ZSFZ150 ZSFZ200 ZSFZ250
Norminial diameter(mm) 80 100 125 150 200 250
Working pressure(Mpa) 1.6Mpa
Sealed test(Mpa) 3.2Mpa
Strength test(Mpa) 6.4Mpa
Flow rate(L/min) 15<Q<60
Retard alarm time(s) 5~90
Friction resistance(Mpa) ≤0.035
Height of alarm valve(mm) 250 260 265 270 370 430
Outside diameter of flange(mm) 200 220 250 285 340 405
Inside diameter of flange screw hole(mm) 160 180 210 240 295 355
Diameter of screw hole(mm) 8 12
Quantity of screw hole 18 22 26

Wet alarm check valve structure
Fire Sprinkler Alarm Check Valve
Fire Sprinkler Alarm Check Valve

Our Company

We could supply fire hose, fire hose fittings, spray nozzle, coupling, automatic fire sprinkler system products, gate valves, check valves, ball valves, etc. All these products strictly confirming to JIS, API ans BS standards. All of our products comply with international quality standards and are greatly appreciate in avariety of markets around world. Our factory is covering an area of 15900 square meters, we now over 300 workers. Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarteen total customer satisfaction. As a result of our high quality products and outstanding customer service, we have gained a globe sales network reaching the North America, South America, Mideast, Southeast Asia, East Europe, etc.
Fire Sprinkler Alarm Check Valve
Fire Sprinkler Alarm Check Valve

Other Firefighting Equipment Fire Sprinkler Alarm Check Valve

1. Could you supply the samples?

Free samples always ready if the value is within our purview.

2.Do you have the MOQ?
For conventional products, Low MOQ.

3. Can you add some logo on the products?
Yes. We could OEM and design your logo.

4. Are you able to design or explore a new products for us?
Yes, we are able to, if the clients could supply the drawings or samples.


SINCO FIRE AND SECURITY CO., LIMITED is a professional company specialized in Fire fighting equipments and Safety products. 
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