ZSHWB Pneumatic Butterfly Valve

ZSHWB pneumatic eccentric butterfly valve:1 the valve body is made by weight impact structure,small cubage forged and light 2 the disc is installed double eccentrically.when it is closed,the valve disc expands for the best sealing effect. when it is open, the disc disengages from the gasket quickly to avoid the abrasion of the gasket., 3 the gasket is new designed ,easy eration and free of maintenace. 4 there are soft and metal sealing for selection to meet the different demands of the working situation 5 the eccentricing structure reduces the operationt which istorque greatly 6 low flow resistance and high rated flow coefficient which is about three times of the single valve seat with the same diameter 7 strong self-cleaning ability and long service life 8 Non-flange structure is used for the valve and water type installation is used for process pipe 9 the standard actuator unites 10The pressure class 0.6, 1.0 1.6 4.0MPa 11 the temperature range -60 450°C 12sealing class :4) Leakage class: ANSI IV/V/VI 13 Body's material: WCB/CF8/CF8M 14 Nominal size: DN 50-1200mm pneumatic butterfly valve