For the high-pressure and low-pressure lines in hydroprocessing reforming, is it better to use one control valve and one safety valve, or two control valves connected in parallel?

2016-08-15View Original

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For the high-pressure and low-pressure lines in hydroprocessing reforming, is it better to use one control valve and one safety valve, or two control valves connected in parallel?

Reply #22016-08-15

Adjust it using two parallel control valves

Reply #32016-08-15

If there is a turbine, it’s better to use a pair of control valves, one large and one small. In our company’s hydrogenation unit, once the turbine is in operation, when the opening degree of the control valves is below 10%, the pipelines experience significant vibration

Reply #42016-08-15

Two parallel control valves are used.

Reply #52016-08-15

For a feed pump hydraulic turbine with no reaction, it is usually the same control valve that is used~~~~~in parallel; this is quite common.

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