orifice pltes
orifice pltes
(OP)
We are putting a orifice plate between 2 x RF WNF,s B16.5 is it normal practice to grind the welds flush at the orifice plates. This is on a Terminal.
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RE: orifice pltes
Why modify the flanges?
ASME B16.36 covers orifice flanges for flow measurement.
RE: orifice pltes
RE: orifice pltes
I would not apply API MPMS tolerances for a restriction orifice. Also, no appropriate standard comes to mind to reference if a client demands compliance with API MPMS or similar ASME or ISO standard for a restriction orifice.
RE: orifice pltes
You left some information out so we must give general answers.
Questions:
1, What is the purpose of this Flange/Orifice Plate installation (Flow Measurement or Flow Restriction)?
2, What is the pipe size for this question?
Answers:
1a, If the purpose is for true Flow Measurement then yes the common practice is to grind the inside of the circumferential weld smooth.
1b, If the purpose is for purely the Restriction of Flow then No you do not need to grind these welds.
2a, If you are in a Flow Measurement situation, with Pipe sizes 3" through 10" the smoothness is far more important than maybe a 24".
RE: orifice pltes
RE: orifice pltes
RE: orifice pltes