Non Standard reducer B31.8
Non Standard reducer B31.8
(OP)
Dear Experts,
I'm designing a pig launcher according to ASME B31.8 which the conical section is not standard and B31.8 don't address any calculations for this component. So, how thickness will be calculated?
I'm designing a pig launcher according to ASME B31.8 which the conical section is not standard and B31.8 don't address any calculations for this component. So, how thickness will be calculated?





RE: Non Standard reducer B31.8
Part of what you wrote, "the conical section is not standard" and I wonder why not?
What size is the large section and what size in the pipeline?
Why aren't you purchasing an "Off-The-Shelf" Reducer that matches your Pipeline wall thickness?
Sometimes its possible to do all the right things and still get bad results
RE: Non Standard reducer B31.8
I've seen company standards where conical items are pre designed, but without them you need to do a pressure vessel design or a non standard piping design to b31.3.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Non Standard reducer B31.8