Designed for preventing reversal of flow at pipe outlet.  
 
1.Size 
Norminal dia : 200mm- 3000mm 
 
2.Working Pressure 
Max. 10 kgf/㎠ 
 
3.Valve End 
Flange(KS D 3578, KS D4309)
Other standards are available on request.
 
4.Fluid 
Service Water 
 
5.Main Materal 
Body : Steel Plate(SS 400) 
       Cast Iron(GC 200) 
Disk : Steel Plate(SS 400) 
       Cast Iron(GC 200)
Pin : Stainless Steel(STS 304, STS 403)
Seat : Rubber