Contact US

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

Monoflange according to asme b16.34

Monoflange according to asme b16.34

Monoflange according to asme b16.34

Hi everyone,

Asme b16.34 covers valves with flanged, threaded and welded ends.

Can i consider a monoflange as a flanged end valve according to asme b16.34?

Thanks in advance for your time.

RE: Monoflange according to asme b16.34

The internals might correspond to B16.34, but this is not a flanged end valve to 16.34....

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

RE: Monoflange according to asme b16.34

Thank you very much for your explaining!

RE: Monoflange according to asme b16.34

Please refer to paragraph 6.7 in ASME B16.34 for wafer or flangeless valves. Your monoflange valve appears to be this type of valve and if it complies with the requirements of paragraph 6.7, then it is within the scope of B16.34.

RE: Monoflange according to asme b16.34

This is very important information for me. Thank you very much 🙏.

RE: Monoflange according to asme b16.34

Could you please help me with this issue?

Paragraph 6.7 shows that a flangeless valve shall conform to the applicable requirements for flanged valves and the requirements of Paragraph 6.7.

I don't see a specific paragraph about flanged valves, only paragraph 6.2.2 Flanged Ends. The requirements in 6.2.2 contain only information about the flange and not about the valve itself.

My questions:
1. Must a flangeless valve meet the requirements of paragraph 6.2.2 Flanged Ends? or
2. Did they mean with “requirements for flanged valves” the general requirements throughout the standard?

Thank you very much for your time.

RE: Monoflange according to asme b16.34

You have the right paragraph for flanged valves. It is 6.2.2. It says, "Flanged ends shall be prepared with flange facing, nut-bearing surfaces, outside diameter, thickness, and drilling in accordance with ASME B16.5..."

Flange facing is applicable
nut-bearing surface is not applicable
outside diameter is not applicable
thickness is not applicable
drilling is applicable, but also meets the additional notes in paragraph 6.7.

RE: Monoflange according to asme b16.34

I don’t know how to thank you. You helped me so much 🙏

You’re the best!

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


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

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