Alarm Check Valve

The Viking Model J-1 Alarm Check Valve serves as a check valve bytrapping pressurized water above the clapper and preventing reverse flow fromsprinkler piping. The valve is designed to initiate an alarm during a sustainedflow of water (such as the flow required by an open sprinkler) by operating anoptional water motor alarm and/or alarm pressure switch. The valve is madesuitable for use on variable pressure water supplies by adding the optionalretard chamber to the standard trim.

Features

Ductile iron body for less weight and extra strength.

Rubber-faced clapper hinged to access cover for quick removal andeasy servicing.

All moving parts can be serviced without removing the valve fromthe installed position.

With the cover/clapper assembly removed, clapper rubberreplacement requires removal of only one screw.

External by-pass trim to minimize clapper movement and false alarm.

Trim allows installation of optional non-interruptible pressureswitch to activate an electric alarm panel and/or remote alarm.

Can be installed on constant or variable pressure water supplies.

Can be installed vertically or horizontally, with the access coverfacing up.

Valve housing tapped for inlet and outlet pressure gauges, alarmdevices, and system main drain.

Trim includes alarm test valve for testing alarms without reducingsystem pressure.