TOH series high-performance butterfly valve

Products Mode: TDH
Internal part characteristics: Double-eccentric structure, compensatory sealing valve seat, arc face
Valve body type: Straightway type
Valve Bonnet type: Standard integrated type
Flow characteristics: Approximate equal percentage
Aperture range: DN80 ~ 600(3' ~ 24'')
Pressure level: PN 16/25/40, ANSI 150Lb/300Lb
Leakage level: ASME B16.104 VI
Pipeline connection type: Double-clip type, flange
Suitable temperature range: -29~200℃
Actuator type: Worm gear manual actuator, pneumatic piston actuator, electric actuator

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Description

TOH series high-performance butterfly valve applies double-eccentric designs. It makes valve shafts double-deviate valve body’s structure center, and is combined with designs of arc sealing face on valve plate, which can drop off from sealing seat rapidly when opening. By this means, the friction on sealing face is decreased, and a good sealing performance is achieved when plate closed. Combining the designs on valve seat of center self-positioning sealing structure, and unique compensatory sealing, it can reduce the friction during open-close operation, greatly lower valve’s operation force, effectively improve the controlling accuracy of butterfly valve, while the valve seat sealing is also effectively compensated. This type of butterfly valve has reliable and long life-time, and is suitable for regulating and cutting off the normal corrosive gas and liquid mediums.