Bellows gate valve

Bellows valve opening and closing parts are plug shaped valve, sealing surface flat or cone, the valve along the centerline of the rectilinear motion of fluid. Stem form of exercise, with lifting rod (stem down, the hand wheel does not lift), but also lift rotating rod (hand wheel and the stem nut rotation and lifting, located in the body). Bellowsvalve is only applicable to fully open and fully closed, does not allow for adjustment and throttle. The valve should be installed in the pipeline in the general level of.