Subject: ASME/ANSI B31.3-1987 Edition, Paras. 304.3.3 and 328; Spacing of Welds
Date Issued: May 24, 1988
Question: In accordance with ASME/ANSI B31.3, are there requirements or guidelines on the minimum distance between welds in a pipe?
Reply: No, except as provided in para. 304.3.3(e).
Subject: B31.3-2012, Interpretation of Figs. 328.5.4D Acceptable Details for Branch Attachment Welds
Date Issued: September 25, 2014
Question 6: Does ASME B31.3 provide any rules or restrictions or limits for the distance between circumferential butt welds in a piping assembly?
Reply 6: No.