Trim materials Ball Valves

[FIF99]

Hi,

Anybody having experience in selecting trim materials for Valves? Specified was 17-4PH for Ball Valves in a non sour hydrocarbon gas application (high pressure class 2500#).

Fabricator have valves assembled with F6 internals (13% Cr.)

As far as we know 17-4PH is a better material with respect to corrosion as well as strength.

Any recommendations/suggestions would be more than welcome and of course very much appreciated.

Thanks in advance.
Regards,
FKE

 

[106coral]

Hello FK,

What is the handling fluid and what is design temperature?
For your reference, as internal materials F6(13Cr), which is 400 series stainless steel can be used as a minimun unless severe conditions.