×
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

Valves for steam service

Valves for steam service

Valves for steam service

(OP)
I'm out on a plant in Egypt, the supplier has sent out some ball & gate valves with no tag/I.Ds on them & so I'm not sure which valve goes where.
I have some with a seat of A105N body, CR13HF, disc CR13HF, stem CR13
& some A105N body, F6 stem, F6 disc, F6HF seat, R35WB050

Which of these would be suitable for superheated steam at 16barg & 300degrees C??

Does anyone have a list of what these specifications mean, I have tried various web sites but come up with nothing.

Thanks

RE: Valves for steam service

I can understand your apparent reluctance, but my advice is to get the right tag numbers for them or, send them back.  If you put them in somewhere without the right IDs, you'll likely find yourself shipped over to Iraq.

         Going the Big Inch!
http://virtualpipeline.spaces.msn.com

RE: Valves for steam service

There are two major issues to look at.
Body Material:  It is not just the material but the pressure rating.  For each material there must also be a class that will dictate the pressure/temperature limitations for the valve.  With just the body material and no class, it will be almost impossible to say if a specific valve can hit a pressure/temperataure point

Seat Material:  You are over 500F.  There are some seats that can handle up to 600F, but at this higher temperature and steam application I would only recommend metal seated valves.

So, my recommendation for both safety and application is to get the correct valve and not try either of the ones that you have for this application.

RE: Valves for steam service

I agree with the other poster.

If you don't know which valves go where, you need to find out, and not from a forum like this.

There are many considerations, other than material of body and material of seat, including:
- pressure rating
- seat leakage rating
- shutoff/maximum valve torque (to match to actuator)


"Do not worry about your problems with mathematics, I assure you mine are far greater."   
Albert Einstein
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?

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