Introduction of threaded ball valve

by:Lianke Valve     2022-08-11
Today, I will introduce some knowledge content about threaded ball valve to you. The threaded ball valve is a closed ball, which is a valve that is opened and closed by rotating the center line of the valve. The valve is mainly used to cut off, distribute and change the flow direction of the medium on the pipeline. Two-piece ball valve and three-piece ball valve are new valves that have been widely used in recent years. This valve is generally installed horizontally. The screw ball valve is a kind of ball valve, and the connection with the pipe is a screw connection, as well as a flanged ball valve, a welded ball valve, etc. Threaded ball valves can also be divided into internal thread ball valves and external thread ball valves. Threaded ball valves are suitable for low-pressure, small-diameter pipes with nominal pressure PN 16~140 and nominal size DN 8~50. Main features: 1. Small flow resistance; 2. Simple structure; 3. Small size and light weight; 4. The sealing surface material of the ball valve is made of plastic, which has good sealing performance; 5. Convenient operation, quick opening and closing, and easy remote control 6. Maintenance is convenient, the sealing ring is generally movable, and it is easy to disassemble and replace; 7. When fully open or fully closed, the sealing surface of the sphere and the valve seat is isolated from the medium, and the passage of the medium will not cause erosion of the valve sealing surface. Notes on installation of threaded ball valve: 1. The installation position, height, and direction of inlet and outlet must meet the design requirements, and the threaded connection should be firm and tight. 2. For all kinds of manual valves installed on the thermal insulation pipeline, the handle shall not be downward. 3. Install a gasket between the valve flange and the pipeline flange according to the pipeline design requirements. 4. The ball valve with transmission mechanism shall be installed according to the provisions of the product instruction manual. If you have any questions about the threaded ball valve or something you don't understand, you can consult Lianke Valve Co., Ltd. at any time, which is dedicated to the production of valves. Contact: +86-577-8585 9626.
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