Alarm Gong Valve Function

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.

Alarm gong valve function. The valve should if properly maintained help hold the system pressure steady and reduce the possibility of false alarms. If water enters the alarm valve it is usually transmitted to the relevant units through the alarm bell located on the outside of the building. The main purpose of the alarm check valve is to ring a mechanical bell called a water motor gong. Verify that the sprinkler alarm bell and or the pressure alarm switch electric alarm properly actuate.

The model e water motor alarm gong is a self contained hydraulically operated alarm gong which sounds continuously whenever the fire protection system is activated. Alarm control station so that a false alarm is not signaled. Function of water alarm gong. 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.

These are water alarm gong pressure switch pressure gauges main drain valve air pressure regulator accelerator and air switch. Either manually when a person activates a water gong or electronically. The water staying pressurized in the pipes is released over the fire area after the sprinkler is activated. An alarm check valve can be activated or opened in one of two basic ways.

The alarm test valve is fitted between the sprinkler system side of the alarm valve and the drain. Designed with functional simplicity and sound engineering practice the model e water motor alarm gong is always ready to function in the event of a fire. Clean the 20 nb 3 4 strainer provided on the. Motorised alarm bell or gong.

An alarm check valve is basically a check valve with an alarm port. Open the alarm test valve. 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 check valve is core element in wet pipe fire sprinkler systems.

The wet alarm valve is designed for applications where the water is unlikely to freeze. 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. The purpose of the alarm valve is when opened to simulate the flow of water from a single automatic fire sprinkler.