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Basic structural performance of CLEMCO air-controlled sand control valve


CLEMCO air control sand control valve and plug valve are the same type of valve, only its closing part is a sphere, the sphere rotates around the center line of the valve body to achieve opening and closing.

Ball valve is mainly used in the pipeline to cut off, distribute and change the flow direction of the medium. Ball valve is a new type of valve widely used in recent years, which has the following advantages:

1. The fluid resistance is small, and its resistance coefficient is equal to the pipe length of the same length.

2. CLEMCO air control sand control valve has simple structure, small size and light weight.

3. It is tight and reliable. At present, the sealing material of the ball valve is widely used in plastics and has good sealing performance. It has also been widely used in vacuum systems.

4. CLEMCO air-controlled sand control valve is easy to operate and opens and closes quickly. It only needs to rotate 90 ° from fully open to fully closed, which is convenient for remote control.

5, easy maintenance, simple structure of the ball valve, the seal ring is generally movable, easy to remove and replace.

The ball of the ball valve is elastic. Both the ball and the valve seat seal ring are made of metal materials. The specific pressure of the seal is very large. Depending on the pressure of the medium itself, the requirements for sealing cannot be achieved, and external forces must be applied. This valve is suitable for high temperature and high pressure media.

The elastic sphere is provided with an elastic groove at the lower end of the inner wall of the sphere to obtain elasticity. When the passage is closed, the wedge-shaped head of the valve stem is used to expand the ball and tightly press the valve seat to achieve a seal. Before turning the ball, loosen the wedge-shaped head, and the ball will then return to its original shape, so that there is a small gap between the ball and the valve seat, which can reduce the friction and operating torque of the sealing surface.

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