Ball valves can be closed tightly with only a 90-degree rotation and a small turning torque. Completely equal valve body cavity for the medium to provide very little resistance, straight flow path. Usually think of ball valves zui suitable for direct use as open and close, but recent developments have been designed to make the ball valve has a throttling and control the flow of the use. The main feature of the ball valve is its own compact structure, easy to operate and maintain, suitable for water, solvents, acids and natural gas and other general working media, but also for poor working conditions of the medium, such as oxygen, hydrogen peroxide, a and ethylene. The ball valve body can be integral or combined.

The working principle and reality of ball valves

The working principle of the ball valve is to rotate the valve love to make the valve open or closed. Ball valve switch light, small size, can be made into a large calibre, reliable sealing, simple structure, easy maintenance, sealing surface and the ball surface is often in the closed state, is not easy to be eroded by the medium, in various industries are widely used.

Ball valves and plug valves are the same type of valve, only its closing member is a sphere, the sphere rotates around the centre line of the valve body to achieve the opening and closing of a valve.

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

1. Small fluid resistance, its resistance coefficient is equal to the same length of the pipe section.

2. Simple structure, small size, light weight.

3. Tight and reliable, the current ball valve sealing surface materials widely used in plastic, good sealing, in the vacuum system has also been widely used.

4. Convenient operation, open and close quickly, from fully open to fully closed as long as the rotation of 90 °, to facilitate remote control.5. Convenient maintenance, ball valve structure is simple, the sealing ring is generally active, disassembly and replacement are relatively convenient.

5. Convenient maintenance, ball valve structure is simple, the sealing ring is generally active, disassembly and replacement are relatively convenient.

6. In the fully open or fully closed, the ball and the sealing surface of the valve seat and the media isolation, the media through, will not cause the valve sealing surface erosion.

7. Wide range of application, the diameter from small to several millimetres, up to several metres, from high vacuum to high pressure can be applied.