×
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

NPT Thread forms

NPT Thread forms

NPT Thread forms

(OP)
Is there any place that I can find specific details of NPT thread forms? I'm in the UK so resources here are hard to find.

What I'm after is a chart of items such as;
taper angle, start core diameter, start outside diameter...... (I'm sure some of my terminology is out there).

Cheers

Hayden

RE: NPT Thread forms

The CRANE Valve Engineering Data handbook has NPT thread information listed in a single page from sizes 1/16" to 24" OD.

It references ANSI Std. B2.1 at the bottom of the page.

RE: NPT Thread forms

ANSI B1.20.1 tells all you need to know about NPT thread geometry.

RE: NPT Thread forms

Yes, as per "tc7".  I use ANSI B1.20.3-1976 which was reaffirmed in 1998.  This is published by:

The American Society of Mechanical Engineers
United Engineering Center
345 East 47th Street
New York, NY USA 10017

Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada

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