Most control valves are globe valves; what will happen if the medium is forced to flow in the reverse direction?
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RT, we have carried out this approach in practice, and it’s likely we will do it frequently in the future. What will be the consequences in the long run?
For low-pressure fluids, the high-inlet/low-outlet and low-inlet/high-outlet configuration of the stop valve makes no difference
It seems there shouldn’t be any issues with actual operation; however, it might be difficult to make adjustments if needed
Prolonged reverse flow of the medium can cause severe wear on the valve core, resulting in poor sealing of the control valve and leakage. If the force of the reverse flow is too great, it can even lead to the detachment of the valve core. For process operations, long-term counter-current operation can cause errors in the sensing elements, as well as improper adjustment of the control valves. Production is unstable.
Reply to 2# Little Radish Head: Will it have an impact if it’s high pressure?
Why does valve core wear occur? ? In modern control valves, the valve spool can be located either in the inlet section or in the outlet section. Do you mean that during design, it’s better to have the valve core in the inlet section? ?