pneumatic knife gate valve, pneumatic damper valve optional accessories 1. Single control or dual control solenoid valve ( 24 v, 220 v voltage to choose from, such as optional explosion-proof solenoid valve if necessary) 。 2. Close to the switch. 3. Air source treatment sanlian joint ( Including the pressure reducing valve, filter, oil mist device) 。 4. Electric/gas valve positioner ( For external regulation) 。 1 pneumatic knife gate valve, pneumatic damper valve function. Valve adopts integral design, fluid resistance small, flexible operation. 2. Pneumatic knife gate valve screw drive adopts double plane bearing design, make the drive friction is reduced greatly, make the light valve opening smoothly. 3, knife switches use mobile seal, seal seat o-ring preloaded, provide pre-tightening force, make the seal seat close to the disc, leakage greatly reduced. Automatic compensation function in the long-term use of improved seal of the wear and tear. The service life. 4, the fixed guide claw, without groove design, not easy to cause the medium or jammed. Five, the seat can choose according to the needs of media and working conditions, metal hard seal or soft seal: drawing the chrome plated or ion nitriding process, make the punch more wear-resisting, sealing surface have longer service life. Soft seal optional PTFE seats or reinforced PTFE seat or EPDM, NBR, good sealing and corrosion resistance. 6, wide applicable scope: good seal performance, economical and practical, can be manually operation, pneumatic, electric, a wide range of practical.

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