Details
Valve opening and closing parts are plug shaped valve, sealing surface flat or cone, the valve along the centerline of the fluid in a straight line. Stem form of exercise, with lifting rod (stem down,The hand wheel does not lift), but also lift rotating rod (hand wheel and rotate with the stem down, the nut in the valve body Valve is only applicable). To fully open and fully closed, does not alloW for adjustment and throttle
