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Regulating valve pressure difference issue

2009-02-14View Original

Thread Content

13 MPa before the valve and 0.3 MPa after the valve, with a diameter of dn25 – can this be achieved with a control valve?
Reply #22009-02-14
High pressure differences require special designs for cavitation prevention and noise reduction; it is necessary to contact the manufacturer for confirmation.
Reply #32009-02-14
The pressure difference is too large; a multi-stage pressure reducing valve can be used.
Reply #42009-02-14
The pressure difference is 12.7 MPa – that’s quite high; I’ve never encountered such a value before. I’ll keep an eye on it
Reply #52009-02-16
Control valves for high pressure differences have a rather special structure; as long as the Cv value is provided to the manufacturer, there should be no problems. However, their price is likely to be high. Why not add a flow orifice plate in front of the valve?
Reply #62009-02-16
No problem. The high differential pressure valves are manufactured in China by the German company Feihua Group; it has a branch in Shanghai, offices in Beijing and Guangzhou, and its Asian headquarters is there. They are just a bit more expensive
Reply #72009-03-10
Sure, you can find out by checking the valves in the high-pressure system
Reply #82009-03-10
There are many manufacturers of valves from Meisilonlan; it’s a piece of cake.
Reply #92009-03-10
First use a pressure reducing valve to lower the pressure, and then a control valve will suffice. Use the process pressure relief valve, hehe
Reply #102009-03-13
Korean KVT valves can solve this problem! ! !
Reply #112009-03-13
The Fisher sleeve valve could be considered; our operating pressure is 5.0 Mpa at the front, while it’s almost at atmospheric pressure at the back, so there are no issues with regulation.
Reply #122009-03-16
Adjustable angle valves also belong to control valves; they can reduce pressure. Extra-high pressure to low pressure pipelines are commonly used.
Reply #132009-03-17
It can be easily solved using a high-pressure angle control valve
Reply #142009-03-23
Have you never even heard of IN32MPa/OUT1.3MPa? High-pressure angle control valves and labyrinth control valves are used

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