×
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!
*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

Pressure vessel nozzles
2

thread177-299930

Pressure vessel nozzles

Pressure vessel nozzles

(OP)
Can anyone please tell me what the RFBF stands for when specifying a 3000 # RFBF nozzle?
Replies continue below

Recommended for you

RE: Pressure vessel nozzles

One guess is "Raised Face Blind Flange"

Regards,

Mike

RE: Pressure vessel nozzles

The 3000# flanges refer API 6A) may have machined back face, called back facing, as alternative to spot facing of the bolt hole. I suspect that the back facing is specified in this case. However, I cannot exclude explanation provided by SnTMan.
Cheers,
gr2vessels

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! Already a Member? Login


News
Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close