Alarm Check Valve Function

The water staying pressurized in the pipes is released over the fire area after the sprinkler is activated.

Alarm check valve function. In this video we will take about alarm which specially for alarm check valve that alarm will operate when system is running. In the event of variable pressure condition false alarm. Under normal circumstances the clapper of the valve is. It for fire suppression systems.

An alarm valve prevents a reverse flow of water from the installation into the fire pump room but in case a fire sprinkler is activated opened due to fire the alarm valve will open and permit. Alarm valve is a double seated clapper check valve with grooved seat design which ensures positive water flow for alarm operation and is designed for installation in wet pipe sprinkler system. An alarm check valve can be activated or opened in one of two basic ways. Meanwhile in the event of variable pressure condition false alarm is prevented with provision of retard chamber at the external bypass.

Our alarm valve manufacturers suppliers wet alarm valve wholesalers and alarm valve offer dependable safety and security products at competitive price. In this video from the know more risk series learn about the arrangement operation and alarm testing of a wet sprinkler system that uses an alarm check valve and water flow pressure switch. Either manually when a person activates a water gong or electronically. An alarm check valve is basically a check valve with an alarm port.

It serves a dual purpose which prevents a reverse flow of water non return also provides for the use of the water motor gong. Protect your family and home. Once the alarm check valves are activated they will allow water to flow through the system engaging the sprinkler system as and where needed in order to suppress a potential fire. Hd alarm valves act as a check valves by trapping pressurized water above the clapper and preventing reverse flow from sprinkler piping.

Alarm check valve is core element in wet pipe fire sprinkler systems. After all it is the place where you should feel safe and secure. Alarm valves are designed to initiate an alarm through water motor gong bell and or pressure switch during a sustained flow of water such as the flow required by an open sprinkler. External bypass prevents false alarm under all supply pressure condition.