As the channel within the valve is in streamline form, the flow resistance is smaller than lifting check valve, it's suitable for low flow large-caliber application without frequently change in flow. However, it's not suitable for pulsating flow for sealing performance poorer than lifting check valve.
Design Feature:
-Bolted Cover , Swing type Disc
-Durable one-piece disc to withstand the severe shock in the process of working and ground & lapped to a mirror finish .
-Optional counter weight device
-Performing in vertical or horizontal line
