3 Inch Alarm Check Valve Grooved
A grooved wet alarm valve is a type of control valve used in fire protection systems, specifically designed for wet pipe sprinkler installations in buildings where freezing temperatures are not a concern.
This valve serves as a gatekeeper between the water supply and the fire sprinklers, ensuring that water flows in one direction while preventing backflow.
Fujian Haijing Fire Fighting Equipment Co., Ltd. is one of the leading manufacturers and suppliers of 3 inch alarm check valve grooved in China, also supports customized service. Please feel free to wholesale cheap 3 inch alarm check valve grooved from our factory.
Products Description of 3 Inch Alarm Check Valve Grooved
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Groove Alarm Check Valve (Wet Type) Basic Technical Info |
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Model |
ZSFZ80(G) |
ZSFZ100(G) |
ZSFZ125(G) |
ZSFZ150(G) |
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Inside nominal diameter(mm) |
80 |
100 |
125 |
150 |
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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<Q<60@0.14MPa Q<80@0.7MPa Q<170@1.2MPa Q<170 @1.6MPa" |
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Retard alarm time(s) |
5~90 |
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Alarm Bell Start Pressure(MPa) |
≤0.035 |
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Friction Resistance(MPa) |
≤0.02 |
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"Height of alarm valve(mm) |
225 |
245 |
250 |
270 |
Packing of 3 Inch Alarm Check Valve Grooved
How does the retard chamber in Alarm Check Valve Grooved work?
The retard chamber in a grooved wet alarm valve works by temporarily holding water during pressure surges to prevent false alarms.
When water flows through the valve seat grooves, it enters the retard chamber. If the pressure surge is transient and does not indicate a fire, the water in the retard chamber is automatically drained.
This mechanism ensures that the alarm is only activated when there is a sustained flow of water, indicating a fire event. The retard chamber thus balances the need to reduce false alarms due to transient pressure changes while ensuring timely alarm activation when a sprinkler operates.
Company Information
FAQ
Q: How can I ensure the proper installation of a wet alarm check valve?
A: To ensure proper installation, follow the manufacturer's instructions and local fire codes. This includes ensuring the valve is securely mounted, all connections are tight and leak-free, and the valve is placed in a location that is easily accessible for maintenance.
Q: What safety precautions should be taken during the maintenance of a wet alarm check valve?
A: Safety precautions include ensuring the water supply is shut off and any residual pressure is relieved before maintenance. Wear appropriate personal protective equipment (PPE), and follow the manufacturer's instructions and local fire codes. It is also important to check for leaks and ensure the area is clear of personnel during any testing or maintenance activities.
contact Information
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E-mail: sales03@sanjingfire.com
Add: Maosheng RD., Fumao Economic Zone, Nan'an City, Fujian, China, 362300
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