| http://www.w3.org/ns/prov#value | - Here is the rest of the story.We had to an HDD to reroute an existing line.Our HDD Spec requires the pipe wall to be .5 wt.The only pipe I could find in time that met our spec was X-52.Still do not see in B31.4 where there is a limit to the difference in wall thickness.I Have heard multiple points of view in the office and from our engineering contractor on the need for the transition spools??
|