10" Wet Pipe Alarm Check Valve
A Wet Pipe Alarm Check Valve is a type of control valve used in fire protection systems, specifically in wet pipe sprinkler systems, to allow water to flow in one direction while preventing backflow.
It also activates an alarm when water flow is detected, indicating a potential fire.
Fujian Haijing Fire Fighting Equipment Co., Ltd. is one of the leading manufacturers and suppliers of 10" wet pipe alarm check valve in China, also supports customized service. Please feel free to wholesale cheap 10" wet pipe alarm check valve from our factory.
Products Description of 10" Wet Pipe Alarm Check Valve
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Alarm Check Valve (Wet Type) Basic Technical Info |
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Model |
ZSFZ80 |
ZSFZ100 |
ZSFZ125 |
ZSFZ150 |
ZSFZ200 |
ZSFZ250 |
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Inside nominal diameter(mm) |
80 |
100 |
125 |
150 |
200 |
250 |
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Rated working pressure (MPa) |
1.6Mpa |
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Sealed test (MPa) |
3.2Mpa |
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Strength test (MPa) |
6.4Mpa |
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Alarm flow (L/min) |
15 |
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Retard alarm time(s) |
5~90 |
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Friction Resistance(MPa) |
≤0.035 |
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"Height of alarm valve(mm) |
250 |
260 |
265 |
270 |
370 |
430 |
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"Outside diameter of flange (mm)" |
200 |
220 |
250 |
285 |
340 |
405 |
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"Outside diameter of flange screw hole (mm)" |
160 |
180 |
210 |
240 |
295 |
355 |
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"Diameter of screw hole (mm) |
8 |
12 |
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Quantity of screw hole |
8 |
22 |
26 |
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Packing of 10" Wet Pipe Alarm Check Valve
How does a Wet Pipe Alarm Check Valve work in a fire situation?
Initial State: The wet alarm valve remains closed, maintaining water pressure in the system and preventing backflow.
Activation: When a fire occurs, the heat-sensitive elements in the sprinkler heads activate, causing them to open and release water. This action creates a drop in pressure on the system side of the valve.
Valve Opening: The pressure drop causes the valve clapper to lift, allowing water to flow from the supply side to the system side. This water flow also activates the alarm system.
Alarm Activation: The water flow through the valve activates the water motor gong and pressure switch, which send signals to the building's fire alarm system, alerting occupants and emergency services.
Water Flow: Water continues to flow through the sprinkler system, suppressing the fire. The valve remains open as long as there is water flow, ensuring continuous water supply to the sprinklers.
Post-Fire: Once the fire is controlled, the system can be reset by closing the control valve and allowing the system to drain if necessary.
Company Information
FAQ
Q: How often should a Wet Pipe Alarm Check Valve be inspected?
A: Wet alarm check valves should be inspected at least annually to ensure they are in proper working condition. This includes checking for leaks, corrosion, and proper operation of the clapper and alarm mechanism.
Q: What are the benefits of using a Wet Pipe Alarm Check Valve in a fire protection system?
A: The benefits include effective prevention of backflow, which helps maintain water quality and system integrity. Additionally, the alarm feature provides early detection and notification of fire events, enhancing safety and response times.
contact Information
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Send us your enquiry, we will reply In 24 Hours!
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WhatsApp/WeChat: +86 18359194029
E-mail: sales03@sanjingfire.com
Add: Maosheng RD., Fumao Economic Zone, Nan'an City, Fujian, China, 362300
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