29 piece screw ball valve

The 29 piece screw ball valve and flange gate valve belong to the same type of valve. The difference is that its closing part is a sphere, and the sphere rotates around the center line of the valve body to open and close. The ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. Two disc ball valve and three disc ball valve are new types of valves widely used in recent years,