Home > Product > Alarm Check Valve   
 
 
 
 
 
Model : FF or FG or GG
Style : flange x flange(model FF), flange x groove(model FG), groove x groove(model GG)
Manufactured by : Yong Won E.N.C.,LTD
Size : 4" and 6"
Approvals : UL, KFI
Rated Pressure : 175psi
Optional Accessories : Retard Chamber
 
 

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.

 
 
 
DIMENSION
  ALARM CHECK VALVE FLANGE(ANSI B, 16,1 CLASS 125)
  SIZE   A B D E F G I.D. O.D. BOLT THICKNESS
B.C.D. NO.-DIA
MODEL : FF 4 DAVF-4 262 156 37 36 59   100 229 190.5 8-19 24
6 DAVF-6 300 165 37 36 59   150 279 241.3 8-22.2 25.5
MODEL : FG 4 DAVF-4 270 156 475 42 36            
6 DAVF-6 312 165 510 42 35  
MODEL : GG 4 DAVF-4 272 156 475 42 41            
6 DAVF-6 312 165 510 42 41