4 or 6 Inch Alarm Check Valve
Product Description
4 or 6 Inch alarm check valve
Introduction
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.
Feature
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
Technical parameters:
Wet Alarm Check Valve structure
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.
Other Firefighting Equipment
Introduction
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.
Feature
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
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.
Other Firefighting Equipment
FAQ
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.
Product Categories : Fire Alarm Valve > Wet Alarm Check Valve
Premium Related Products
Other Products
Hot Products
UL Certified Fire Extinguisher/UL listed Fire Extinguisher/UL fire fighting fire controlApartment home fire extinguisher/cheap fire extinguishers/latest design fire extinguisherfire and fury/fire equipment firefighting/refilling fire extinguisherMini fire fighting powder flamefighter extinguisher for carTop quality fire throwable extinguisher ballDn65 fire hydrant landing brass safety valves priceHigh quality hose spray dcp powder co2 fire extinguisher nozzlesSurvival outdoor conversion first aid kit emergency for carFilling machine powder/fireworks powder/stainless steel powderUL synthetic rubber covered fire hoseChinese factory price automatic fire hydrant fire hose reel 671Foam fire extinguisher refill/co2 refilling machine/water filling machineCo2 cartridge for life jacket vest2 liter foam extinguisher stainless steel priceWoolen fire blanket roll in ceramic bibre blanket chemistry specificationRechargeable emergency led bulb twin spot fan with light