×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

trim configurations

trim configurations

trim configurations

(OP)
Hi everyone,

I need to find a trim configurations chart for ball valves which adresses the compatible fluids with the specific trim configurations.

Can anyone advice anything?

Thanks a lot...

RE: trim configurations

(OP)
Thanks a lot Jim,
That was a very useful link including several kinds of fluids.
But my concern was, more specificaly, reactions of a high chromium(around %27) stainless steel with petroleum and gas fluids.
Can anyone comment on that?
Thanks in advance...

RE: trim configurations

Petroleum and gas fluids are generally not considered corrosive unless they are contaminated with H2S(Sour).  

Sometimes the vendor of the alloy your are using will offer a compatibility chart.  The only 27% Cr material I am seeing in my literature is Stellite 6, but that's a cobalt alloy and not really a "Stainless".  

RE: trim configurations

(OP)
There is also 1.4086, which contains 27% or 29% and it is listed as stainless.
But it is not commonly very well known by the market I guess.
In fact, I couldn't even find the cross reference  in ASTM Standards
So that's the reason why I am trying to find out more about this material. I am considering to use it in petroleum & gas applications.
Do you have any comment on that?

RE: trim configurations

Why can't a lower grade material be used?

I2I

RE: trim configurations

(OP)
Feasibility Reasons!!! :)

RE: trim configurations

The higher priced material is more feasible?

I2I

RE: trim configurations

(OP)
In this case, YES!!
Because feasibility is not an only price focused criteria.
Anyway, thank you guys for your attention!

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources