Sprinkler System Alarm Check Valve

Reliable wet system valves are designed to control sprinkler systems in areas that are temperature controlled to at least 40 f 4 c.

Sprinkler system alarm check valve. The victaulic fire sprinkler system alarm check valves control water pressure help prevent water in the system from back flowing into the original water source. Alarm check valves shall be ul listed and fm approved. 6 8 2 1 wet pipe systems. Once activated alarm check valves will allow water to flow through the sprinkler system initiating the sprinklers to suppress a fire.

Meanwhile in the event of variable pressure condition false alarm is prevented with provision of retard chamber at the external bypass. An alarm check valve can be activated or opened in one of two basic ways. Alarm check valve shall be equipped with a water motor operated mechanical alarm or pressure switch to initiate an electric alarm. As the most common type of system wet sprinkler systems have water available at the sprinkler so when a fire occurs and the sprinkler activates water is discharged on the fire immediately.

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. 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 val. Wet system valves water motor alarm model av 1 300 alarm check valve 300 psi 20 7 bar 2 1 2 to 8 dn65 to dn200 vertical or horizontal installation model rc 1 retard chamber for variable pressure wet pipe sprinkler systems 300 psi 20 7 bar model wma 1 water motor alarm hydraulically operated mechanical sprinkler alarm. Alarm check valve is core element in wet pipe fire sprinkler systems.

However one of the benefits of the alarm valve is that it allows the waterflow switch to be installed or replaced without draining the sprinkler system. Either manually when a person activates a water gong or electronically. As manufactured by globe fire sprinkler corporation models h 1 and h 2 3 4 and 6 inch alarm check. From the 2016 edition of nfpa 13.

It serves a dual purpose which prevents a reverse flow of water non return also provides for the use of the water motor gong. 6 8 2 waterflow detection devices. The basics of. 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.

A vane type flow switch can be used just like on a straight pipe riser system.