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Six Characteristics of the Ball Valve (1)

by Adamant Valves

Sanitary Ball valve is the advent of a new type of valve in the 50s of last century. Over 30 years, the ball valve has developed into a major kind of valve, which is widely used in aerospace, petrochemicals, long-distance pipelines, light industrial products, construction and many other fields. This is because the ball valve has many outstanding advantages compared with other valves. The main features of the ball valve are as follows:


(1) Small fluid resistance. Ball valves are generally divided into reduced diameter and non-reduced diameter channels of these two structures. No matter what kind of structure it is, ball valve flow resistance coefficient is relatively small. In particular, the so-called full-flow type, that is, a reduced diameter of the ball valve, from the diameter of its channel equal to the diameter of the pipeline, local resistance loss is only the same length of the pipeline frictional resistance. In all valves, this valve has the smallest flow resistance. In the rocket launch and its test system, the resistance of the pipeline needs to be as small as possible. There are two ways to reduce the resistance of the pipeline system. One is to reduce the fluid velocity. To do this, it is necessary to increase the pipe diameter and the valve back-off, which often have an adverse effect on the economy of the pipe system. It is extremely unfavorable to hold the low-temperature delivery system (liquid hydrogen), so the ball valve has naturally become the best choice.


(2) Switch quickly and easily. As the ball valve under normal circumstances only need to handle the rotation of 90 degrees to complete the full turn into full off action, it is easy to achieve quick opening and closing.

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