The Yong Won Alarm Check Valve is used in wet pipe sprinkler systems. It is designed to prevent a reverse flow
of water and to intiate an electric and / or hydraulic alarm during a sustained flow of water into the system such time as a sprinkler is activated.
The Alarm Check Valve Trim package includes the necessary valves, pressure gauges, fittings and nipples to provide retard chamber connection and drain connection.
Alarm Check Valve can be installed vertically or horizonyally and are UL listed with Yong Won Trim only.
No substitutions or omission, in part or in full, are allowed without prior consent from Yong Won E.N.C.,Ltd.
The Alarm Check Valve are available in three styles, flange by flange(model FF), flange by groove(model FG), and groove by groove(model GG). The valves come with 4" and 6" size with mazimum working pressure of 175psi.
Optional retard chamber is required when Alarm Check Valve are installed on systems with variable pressure water supply to prevent false alarms.