Branch pipe to weldolet
Branch pipe to weldolet
(OP)
I can't seem to find the location in the ASME B31.3 codebook that states the weld requirements for the weld between a branch pipe and a reinforced branch fitting (weldolet). Anyone have experience with this?





RE: Branch pipe to weldolet
RE: Branch pipe to weldolet
You didn't look very far?
The vendor normally marks a weld line which should be filled with weld to that point.
Also check out bonney forge
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Branch pipe to weldolet
I believe the OP is asking about the weld on the outlet side of the olet, not the run pipe weld as depicted in Fig. 328.5.4F
RE: Branch pipe to weldolet
Yes, I am talking about the pipe welded to the outlet of the weldolet. Thank you for your response.
RE: Branch pipe to weldolet
do you have a code reference for this?
RE: Branch pipe to weldolet
It's still section 328 though - you need to produce a WPS - that will or should specify full penetration weld and you need to then comply with your own WPS.
Your branch fitting should be supplied with a bevel to match the OD and wt of you connecting pipe.
What's the problem / issue here?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Branch pipe to weldolet
RE: Branch pipe to weldolet
RE: Branch pipe to weldolet
The problem is that the customer is asking about the strength of this weld in particular. Does full penetration weld make the joint stronger than the branch pipe itself?
RE: Branch pipe to weldolet
I don't believe there is a code reference to that requirement.
It does make sense to have a full pen weld there because it doesn't make sense to have any other type of weld such as a partial pen weld.
The strength of that weld will be similar to any other circ weld or pipe to pipe butt weld, assuming material of the olet equals or exceeds the pipe material, and use of a welding filler metal that also equals or exceeds the pipe material.
I don't understand why your customer would be concerned with that weld, the run pipe weld is much more critical when using an integrally reinforced branch fitting like a weldolet.
RE: Branch pipe to weldolet
The last sentence you said about the run pipe weld being more critical...
are you talking about the weld that attaches the weldolet to the run pipe?
RE: Branch pipe to weldolet
RE: Branch pipe to weldolet
IRBF are designed and tested by the manufacturer. The specific requirements may vary somewhat from one manufacturer to another, but the code requirements for branch fitting must still be met.
Best regards - Al
RE: Branch pipe to weldolet
RE: Branch pipe to weldolet
Go to http://www.absa.ca/home/absa-information/the-press... and look on Page 3 of Volume 13, Issue 2 – June 2008.
RE: Branch pipe to weldolet
RE: Branch pipe to weldolet
RE: Branch pipe to weldolet
"Nobody expects the Spanish Inquisition!"
RE: Branch pipe to weldolet
RE: Branch pipe to weldolet