Compact Reducing Flange
Compact Reducing Flange
(OP)
I have a #2 fuel piping system #150 where space between valves is limited. I need to create some room by removing a 6x4 conical reducer and I was thinking of installing a compact reducing flange in its place. I have used these before on instrumentation on top of tanks but never in the piping.
http://www.napacinc.com/app/uploads/2015/02/Compac...
Any advice is appreciated,
http://www.napacinc.com/app/uploads/2015/02/Compac...
Any advice is appreciated,





RE: Compact Reducing Flange
RE: Compact Reducing Flange
RE: Compact Reducing Flange
RE: Compact Reducing Flange
As to the turning a blind into a reducing flange as europipe suggested, unless I'm mistaken, that's only legit if you use a hubbed blind. B16.5 will only allow a plain blind to be used within a certain size range, and 6x4 is definitely too large to comply. Hubbed blinds exist and can be bought- but that doesn't solve your problem as neatly as the reducing filler flange would I would imagine.
RE: Compact Reducing Flange
The supplier who did the vessel under which the the reducing flange was placed, made the same solution as you listed, but did the calcs based on ASME VIII-1, and more specifically app. 2 for the flange part. And, as far as I can remember, they also drilled a radial hole into the conical subsection halfway the fitting, to insert a thermowell. It required some calcs, but once you figure that out, the rest is simple. And you can easily make up a drawing and order a pretty straight forward maxhined part.
RE: Compact Reducing Flange
What is code of construction? Any other requirements from AHJ?
Curtis
RE: Compact Reducing Flange
What fluid and pressure are you talking about?
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RE: Compact Reducing Flange
RE: Compact Reducing Flange
Would be interested to know which rules they used and how they designed them. Maybe ASME VIII?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Compact Reducing Flange
RE: Compact Reducing Flange
RE: Compact Reducing Flange
RE: Compact Reducing Flange