×
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

Class 5000 ASME B16.5 Flange
2

Class 5000 ASME B16.5 Flange

Class 5000 ASME B16.5 Flange

(OP)
Hi guys,

Is there any standard that gives the dimension of Flanges of Class 5000# ASME B16.5 that i can refer to? I usually works with 150# and i have the B16.5 Standard to refer the dimension. Maybe my copy is the old one, but the it only cover until class 2500. Google search gives me the API 6A type,and i don`t know whether the dimension is the same. Please help me on this. Thanks in advanced.

RE: Class 5000 ASME B16.5 Flange

Class 5000 is not a listed class under B16.5, so B16.5 Cl. 5000 does not exist. B16.5 ends at Cl. 2500.

RE: Class 5000 ASME B16.5 Flange

You are mixing two different design codes for flanges.

ASME B 16.5 runs a "class" system which stops, and has always stopped, at class 2500. Although it varies with material and temperature at low temps and basic materials, this has a pressure rating of 6160 psi ( but can be a lot less).

5000 rated flanges normally refers to API 6A wellhead equipment where the 5000 refers to 5000 psig which appears to be valid up to 121C depending on the temperature range specified when ordering.

Dimensions are completely different between the two standards. For a 5000 type B flange you need table 51 of API 6A.

going from ASME class 150 to API 5000 design is a bit of big leap....

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: Class 5000 ASME B16.5 Flange

(OP)
Thanks guys. That what i thought too. The thing is, we receive a quotation asking to supply set of flanges and there are several items that marked with 5000# such as below.

BLIND FLANGE 3.1/8" X 5000# RTJ ASME B16.5 A105 C/W 1/2" NPT

I haven`t got a touch with the client yet, and thinking maybe i should take a few information before making an inquiry regarding the class.

RE: Class 5000 ASME B16.5 Flange

He is mistakenly quoting ASME B16.5 instead of API 6A, the 3.1/8" x 5000 (PSI) is a give away.

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