the rubber sealing ring is set in seat’groove and is locked by metal seat, which will prevent rubber seal off when opening and closing the valve. If the seal is broken, you can remove the metal
seat and replace the rubber seal, which will greatly improve valve’ working efficiency. This valve is a cost-effective, high-performance products. The series of knife gate valve can be equipped
with pneumatic actuators, in order to meet the requirements of different industrial and mining use.