Introduction the Welding gate valve

      Chinabase Machinery is a group of manufacturing facilities, offering one-stop solution for mechanical power transmission products in China. 

     Our product range also covers locking assemblies (clamping elements/locking device), taper bushes, QD bushes, bolt-on hubs, torque limiters, shaft collars, shaft collars，motor bases and motor slides, chain detachers, chain guides, universal joint, rod ends and yokes.

    China manufacturer of Universal joints, Specialist in: coupling Universal joints, U-joint China, Universal coupling, Cardan joint. 

 Welding gate valve is forced closed valve, simple structure,manufacture and repair is more convenient and the working stroke is small, open and close a short time. Not only the good sealing, the sealing surface between the friction force is small, longer life expectancy.

     Welding gate 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). Bellows valve is only applicable to fully open and fully closed,does not allow for adjustment and throttle.

Engineering Chain

     Welding gate valve, bellows valve, bellows globe valve is forced closed valve, so the valve is closed, the valve must exert pressureto force the sealing surface does not leak. When the medium into the valve six from the bottom of the valve, the operating force required to overcome the resistance, is the stem and the packing friction and pressure generated by the media thrust, close the valve force than force open the valve, so the diameter of the valve stem,otherwise it will bend the stem top of the fault. The emergence of self sealing valve, globe valve replaced by medium flow on the top of the valve into the valve chamber, then in the medium under pressure, the valve off a small force, and force open the valve,stem diameter can be reduced accordingly. At the same time, the role of the media, this form of valve is also more closely. China valves "three to" has been provided, the flow valve, all top-down.

     Welded gate valve is open, the valve opening height, the nominal diameter of 25% ~ 30%, the flow has reached the maximum,indicating that the valve has reached the fully open position. So the valve fully open position, the valve stroke should be determined.