Alarm Check Valve Connection

The alarm check valve is designed to initiate an alarm during a sustained flow of water by operating an optional water motor alarm and or a pressure switch.

Alarm check valve connection. It serves a dual purpose which prevents a reverse flow of water non return also provides for the use of the water motor gong. 16 14 1 4 the alarm test connection shall be permitted to be installed in any location on the fire sprinkler system downstream of the waterflow alarm. Can anyone help in. To obtain a satisfactory test there must be an unrestricted flow of water when the test valve is wide open.

It serves a dual purpose which prevents a reverse flow of water non return also provides for the use of the water motor gong. If such connections are found give proper no. 1 installation locations for alarm check valve. Hd alarm valves act as a check valves by trapping pressurized water above the clapper and preventing reverse flow from sprinkler piping.

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. 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. An alarm check valve can be activated or opened in one of two basic ways. Alarm valve includes trim packages valves gauges pressure switch fittings and nipples to provide retard chamber connection drain connections and alarm test bypass.

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. 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. Check the end of the test connection to make sure that it is unobstructed. Sdh ava technical data.

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. Either manually when a person activates a water gong or electronically. And as it seems the nfpa does not identify the locations where the alarm check valve to be installed.