4 replies to this topic

[anaalmansuri]

Hello,

 

Please help if you have experience when:

 

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

 

 

[fallah]

 

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

..................................
 

[latexman]

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).

[anaalmansuri]

what is a drag valve?

[S.AHMAD]

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