rising stem knife gate valve

1. The knife gate valve adopts integral design, with small fluid resistance and flexible and convenient operation. 2. The screw drive of manual knife gate valve adopts double plane bearing design, which greatly reduces the transmission friction and makes the valve open easily and smoothly. 3. Movable seal is used for the sealing seat of knife gate valve, and O-ring pre tightening is used to provide pre tightening force, which makes the sealing seat close to the valve disc, greatly reduces the leakage, and has automatic compensation function for the wear of sealing pair in long-term use, so as to improve the service life. 4. Fixed guide claw, no groove design, not easy to cause media accumulation or jamming. 5. The valve seat can choose metal hard seal or soft seal according to the needs of medium and working condition: the surface of the gate is treated with chromium plating or ion nitriding to make the gate more wear-resistant and the service life of the sealing surface longer; Soft seal can be PTFE seat or reinforced PTFE seat or EPDM, NBR, good sealing and corrosion resistance. 6. Wide range of media: good sealing performance, strong economic practicability, manual operation, pneumatic operation, electric operation, wide range of application.