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!

*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.

Jobs

How to clean up burr or rough API BTC thread

How to clean up burr or rough API BTC thread

(OP)
I there a brush that can be used safely to remove small burrs on the thread form of a BTC thread. Possibly use some 125 Emory to knock down the burr and a polishing wheel with pneumatic grinder to tun around the root or crest of thread to keep surface smooth.

We can't see, to make-up a BTC by hand to 300 ft-lbf torque without causing some damage.

We use API modified pipe dope but have been using a bottle brush to apply. We have ordered moustache brushes to apply thread compound in the future. We also apply small amount of PTFe tape to help create seal.

Another issue is we don't have place to apply wrench to thread except directly over connection.

I was thinking
1)Vise on tool
2)get roller stand and and align test plug with BTC connection
3)Apply dope with moustache brushes
4)torque connection hand tight.
5) flip so Test plug is is a chain vise with full 360 contact.
6. Torque to final with roller stand alignened at end so no side load is applied.
7. Pressure Test.

Any advice?
Would xylan coating on test cap be an option ot a hard fac coating that won't crack in root corners?

- CJ

RE: How to clean up burr or rough API BTC thread

(OP)
PTFE works with about 500 ft-lbf torque. Just need to keep pipe dope clean.

Would like it is someone knew where there were pics of acceptable vs. unacceptable API Casing Threads. If you clean a knick up and can make up go gauge are you OK? It is difficult to make calls on API pipe threads because Usually it is a minor flaw in crest that can be polished over and molysprayed. I know it will pressure test with PTFE tape but not if just using pipe dope and making up to triangle.

Any links to helpful sites would be appreciated.

- CJ

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


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