×
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

Ansi Standard

Ansi Standard

Ansi Standard

(OP)
Could anyone tell me what is the meaning of ANSI 150lb or ANSI 300lb for a flange and how it's related to its working pressure?
Thanks a lot

RE: Ansi Standard

Pressure-temperature rating could be found in ANSI B16.5.

RE: Ansi Standard

Tiger,

ANSI B16.5 is a dimensional standard that provides:

 - Standard dimensions for various types and ratings of pipe flanges ( This data is required in order for manufacturers to produce interchangable items)

-  Combinations of allowable pressures at various temperatures for various materials (This data allows piping system designers to specify a flange that is strong enough to sustain a pressure at a certain temperature)

The pressure "classes" should not be confused with the pressure/temperature tables...... for example a 300 lb. class flange, made from carbon steel (ASTM A105 material)to the dimensions contained in B16.5 is acceptable for service at 740 psig at 70 F but can be used only to 410 psig at 800 F

Hope that this helps....


MJC

RE: Ansi Standard

Where do I find the standard on Revisions in drawings?

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


Resources


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