Why is the diameter changed before and after the control valve?
Thread Content
The change in diameter before and after the control valve is intended to improve its regulating performance; generally, the diameter of the control valve is one to two sizes smaller than that of the pipeline. The change in diameter before the valve increases the pressure there, thereby enabling more precise regulation and facilitating better automatic control； The diameter is changed after the valve in order to reduce the pressure in the outlet pipe. The change in diameter also serves a throttling function. By using concentric reducers, the flow condition of the control valve improves, resulting in a relatively higher control accuracy. The use of eccentric tees prevents fluid accumulation at both ends of the control valve.
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Well said, thanks for sharing! :lol
Thank you for sharing; I’ve learned something, it’s very helpful!