This is not the method of welding trunions to pipe with a repad. The trunion pipe is welded directly to the main pipe with a full penetration weld. Then the repad comes on and is welded to the main pipe on the outside of the repad, and then the inner seam is welded to the trunion pipe. That way the repad only adds strength, it does not take away strength. These are my thoughts, please correct me if I am wrong. The picture you posted shows the linkage welded to the pad, and the pad welded to the pipe. Not as strong...