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A234WP-W

A234WP-W

A234WP-W

(OP)
Hi~ guys

I have known tha 30x30x28 tee(a234wp-w)is made by welding after plate forming. but i saw tee made of pipe opened hole.
(opened hole to pipe is welded)
is it possible for tee to be made of pipe?

RE: A234WP-W

sk10009

Not sure the exact question, but I believe you are asking if you can "fabricate" a tee by stubbing a pipe onto a pipe run.  The answer is yes you can.  It is a branch weld.

It is not a common method to make a tee, but if you have a pipe run and need to tee from it, this is an option.  You eliminate 2 butt welds (dropping in a tee), but the lay out, cutting & welding of the branch is much more difficult and presents it's own set of problems.

See API 1104, Appendix B for more information.

Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com

RE: A234WP-W

sk10009

Forgot to add, you'll need to check your governing codes to make sure it is permissable.

Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com

RE: A234WP-W


For hot tapping solutions in particular circumstances it is possible the use of split tees




Luismarques

RE: A234WP-W

(OP)
Thanks all

Is it possible to fabricate tee by stubbing a pipe onto a pipe run without reinforcement pad.

thanks

RE: A234WP-W

sk10009

Yes you can, but it will need to be looked at and will be dependent on the wall thicknesses of the 2 pipes, the design pressure, yield strengths, design factor, etc.

Look at B.31.8, paragraph 831.4 for criteria and for calculating.

Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com

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