4 Inch Grooved Riser Alarm Check Valve
A grooved alarm check valve is a component in a fire protection system designed to prevent water from flowing back into the water supply, while allowing water to flow into the system under pressure. It is equipped with a water bypass line that includes an in-line swing check valve. This bypass line allows pressure surges to enter the system and be trapped above the alarm check valve's clapper without causing false alarms. When a significant flow of water occurs, such as from an open sprinkler, the alarm valve's clapper lifts, allowing water to enter the system and simultaneously activating an alarm through a water motor alarm or a water pressure alarm. These alarms continue to sound until the flow of water is stopped.
Fujian Haijing Fire Fighting Equipment Co., Ltd. is one of the leading manufacturers and suppliers of 4 inch grooved riser alarm check valve in China, also supports customized service. Please feel free to wholesale cheap 4 inch grooved riser alarm check valve from our factory.
specification
features of grooved alarm check valve
1. Non-Return Mechanism: The valve has a swing check mechanism that allows water to flow in one direction and closes tightly to prevent backflow when the water pressure decreases or stops.
2. Spring-Loaded Clapper: A spring-loaded clapper ensures a tight seal against the valve seat, preventing any reverse flow of water from the system back into the supply line.
3. Rubber-Lined Clapper: The clapper is often faced with rubber or another resilient material to create a better seal against the water seat and prevent leakage.
4. Grooved Connections: Grooved ends facilitate secure and leak-free connections with compatible grooved piping systems, reducing the risk of water leakage and backflow.
Company Introduction
FAQ
Q: What is the purpose of a grooved alarm check valve in a fire protection system?
A: A grooved alarm check valve is designed to prevent backflow and ensure water flows in one direction within a fire protection system. It also triggers an alarm when water begins to flow due to a fire event, such as an activated sprinkler.
Q: How are grooved alarm check valves typically installed in a fire protection system?
A: They are installed in the main water supply line of a wet sprinkler system, with the grooved ends facilitating secure connections to the piping system. The valve should be installed according to the manufacturer's guidelines to ensure proper operation and prevent backflow.
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