Alarm Check Valve Location

It serves a dual purpose which prevents a reverse flow of water non return also provides for the use of the water motor gong.

Alarm check valve location. The water staying pressurized in the pipes is released over the fire area after the sprinkler is activated. When this valve is opened it allows water to flow from the supply to the pressure switches and bells. It is most important to ensure a clean water supply free of debris and solid particles such as sand gravel or mud. Globe alarm check valve installation and maintenance guide important notes 1.

Meanwhile in the event of variable pressure condition false alarm is prevented with provision of retard chamber at the external bypass. The other employs a riser check valve. A swing check valve can act as an alarm check valve for a wet pipe fire sprinkler system but only when that valve can sound an alarm. United states restricted mode.

The alarm port can be used to direct water to a water motor alarm or an alarm pressure switch used to alert nearby personnel to the system s activation or send a signal to a fire alarm control panel. The wet alarm valve is designed for applications where the water is unlikely to freeze. Wet system alarm check valve duration. Fm global 92 922 views.

There is an alarm test valve that is connected to the supply water before the alarm valve. Fire alarm check valve location fire alarm check valve location ahmedmoussa mechanical op 18 aug 15 10 43. The trim on the alarm valves allows for testing of the pressure type flow switch without flowing water throughout the entire system. An alarm check 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 water flow into the system it is one of two configurations used in a wet sprinkler system.

An alarm check valve can be activated or opened in one of two basic ways. Off history help about. Alarm check valve is core element in wet pipe fire sprinkler systems. Description 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.

Sdh ava technical data. External bypass prevents false alarm under all supply pressure condition.