Modify B16.5 flange to B16.36 orifice flange
Modify B16.5 flange to B16.36 orifice flange
(OP)
I can find the related thread.
ANSI 16.5 VS ANSI 16.36
thread174-170011: ANSI 16.5 VS ANSI 16.36
However, it cannot directly reply to my specific questions.
Flange is A182-F321 size 24" Welding Neck Class 300 per ASME B16.5. If the end user requires to drill hole as per dimension in ASME B16.36. It seems that flange thickness "C" is the same for B16.5 and B16.36
- What should be the major concern especially for QA/QC procedure?
- Do we need any back up calculation to support this modification?
Please comment.
ANSI 16.5 VS ANSI 16.36
thread174-170011: ANSI 16.5 VS ANSI 16.36
However, it cannot directly reply to my specific questions.
Flange is A182-F321 size 24" Welding Neck Class 300 per ASME B16.5. If the end user requires to drill hole as per dimension in ASME B16.36. It seems that flange thickness "C" is the same for B16.5 and B16.36
- What should be the major concern especially for QA/QC procedure?
- Do we need any back up calculation to support this modification?
Please comment.





RE: Modify B16.5 flange to B16.36 orifice flange
cheers,
gr2vessels
RE: Modify B16.5 flange to B16.36 orifice flange
RE: Modify B16.5 flange to B16.36 orifice flange
I would be more concerned with liability issues if the flange fails. Check with a B16.36 flange manufacturer if the modification can be done. The manufacturer has the right tools and quality system program set in place.
Please advise us of the outcome.
RE: Modify B16.5 flange to B16.36 orifice flange
JLSeagull,
The specific purpose for this orifice flange is for low point drain only. Therefore, I do not worry about flow measurement.
doct9960,
I will try to contact the manufacturers. However, I'm not sure that they will share their know how or manufacturing technology.