I agree with davefitz, having a 0.7 diameter ratio is enough to proceed with the hot tap. However, if you want to apply a 3" hot tap over a 4" line, it is possible to apply an "Split tee", reinforcing the existing line to avoid overstresses and wakening on the line and adjusting the ratio...
Hi,
We are going to provide Tie-In (cold cut) presure test for a gas treating plant. We find a doubt concerning the hydrotest to apply over this Tie-In because pipes downstream we find are very long headers and it would take us too much time to test them. Would be possible and safe to apply a...
