×
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

Well head threads

Well head threads

Well head threads

(OP)
We are a machine shop based in the uk and have a suite of clean-up tools to manufacture. We are an ISO certified company, do we still need to be API certified to cut the threads and and can anyone advise me where we can obtain the dimension specifications for the various threads used in this industry?
Any information is greatly appreciated.

Thanks
Calvin

RE: Well head threads

Regarding your question on being API certified, do you mean certified to API Q1? If so, I would think you'd only need to be certified to that if your clients insist on it.

Dimensions of threads are found in API Spec 5B, "Specification for Threading, Gaging, and Thread Inspection of Casing, Tubing, and Line Pipe Threads".

RE: Well head threads

CalvM,

Your company does not need to be API certified to cut API threads but as Gilmiril stated only if your clients require it.

Others that you may look into include:

API Spec 7-2, "Specification for Threading and Gauging of Rotary Shouldered Thread Connections" - Pins & Boxes

API Spec 5CT, "Specification for Casing and Tubing" - Couplings

API Spec 5L, "Specification for Line Pipe" - Couplings

John H. Dunten, CD
Certified Drafter

RE: Well head threads

(OP)
Thanks Guys

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