Two-piece Ball Valve
Introduction:
The two-piece ball valve refers to a valve with a small diameter internal thread connection. It is composed of two left and right valve bodies connected by bolts.
When fixed, the ball valve is clamped by two valve bodies, and the maintenance is relatively difficult. The most important thing is to look at the middle screw tightness How, this is directly related to whether the seal is tight.
In addition, it is mainly used in atmospheric and high pressure environments, such as non-standard valves with a nominal diameter below DN50, which also belong to two-piece valves. The two-piece ball valve is fixed by two pieces of the valve body clamped by the ball, and the maintenance is more complicated. The tightness of the middle screw is very important.
Features:
1. Open and close without friction. This function completely solves the problem that the traditional valve will affect the sealing due to the friction between the sealing surfaces.
2. Top-loading structure. The valve installed on the pipeline can be directly inspected and maintained online, which can effectively reduce the shutdown of the device and reduce the cost.
3. Single seat design. It eliminates the problem that the medium in the cavity of the valve affects the safety of use due to abnormal pressure increase.
4. Low torque design. The valve stem with special structure design can easily open and close the valve with only a small handle.
5. Wedge seal structure. The valve relies on the mechanical properties provided by the valve stem, and the ball wedge is pressed to the valve seat to seal, so that the sealing performance of the valve is not affected by the change of pipeline pressure difference, and the sealing performance is reliably guaranteed under various working conditions.
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