Oct 18, 2008 · For a small nozzle say 25NB, on a vessel, the normal layout is weldolet welded onto the vessel and a pipe is welded onto the weldolet and then a WN flange is welded onto …

Jun 12, 2002 · I have seen many designs where a weldolet is fitted to an elbow or tee, and I wonder how this is documented. And now I am challenged to verify a 3" weldolet attached to a …

Jun 10, 2002 · When making a branch connection for a hot tap, we always use a split tee for a size-on-size connection. When we have a branch connection size smaller than the header, our …

Jul 27, 2007 · To hot tapping into and existing 18" line (Sch. 10. A53 Gr. B, UT shows the wall thickness is 0.25", 300 psig and 200F), using weldolet connection (instead of split Tee). …

Aug 1, 2014 · I hope someone can help me. I have been given a design for a Pig Trap and for flushing purposes there is a weldolet off the main pipe. I have a couple of questions regarding …

Mar 4, 2004 · In my opinion, their choice of using a weldolet was overkill and a waste of material for this particular vessel. Especally when they wanted to fill out the reinforcing weld up to the …

Nov 30, 2016 · Reinforcing a weldolet is not, IMHO, an option open to you as it would invalidate the acceptance of a weldolet as an integrally reinforced fitting and without going to an FEA …

Nov 1, 2001 · XS header, Std WT branch - buy XS weldolet (will have step down to branch pipe WT). If step unacceptable for flow reasons, request weldolet bore be machined down to match …

Jul 5, 2010 · MechD, to add a bit of additional information.. you don't need to do branch reinforcement calcs, because the weldolet is precertified for a given pressure. If the branch …

Feb 9, 2012 · Some company standards will limit the size of any weld-in connection to less than half the nominal diameter of the line (you can put a 4-inch o-let on an 8-inch line, but not on a …