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Cavitation In Valves


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#1 anaalmansuri

anaalmansuri

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Posted 15 November 2015 - 07:57 AM

Hello,

 

Please help if you have experience when:

 

What must I do if all my valve CV calculation and selection end up with cavitations?

 

 



#2 fallah

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Posted 15 November 2015 - 08:04 AM

 

What must I do if all my valve CV calculation and selection end up with cavitations?

 

anaalmansuri,

 

1) Using multistage control valve

2) Using harder trim material

..................................
 



#3 latexman

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Posted 15 November 2015 - 08:40 AM

Also, increase the operating pressure, lower the elevation of the CV, decrease the operating temperature, add a downstream orifice, and/or use a drag valve (CCI).



#4 anaalmansuri

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Posted 13 December 2015 - 05:25 AM

what is a drag valve?



#5 S.AHMAD

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Posted 15 December 2015 - 10:37 AM

Dear Analmansuri

 

Please check with control valve vendors, they have the type of valve that is using multiple-valves concept that eliminate cavitation problem. It is as though you are installing several valves in series.

 

Regards

 

S.Ahmad






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