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WELLHEAD FACILITY PIPING-API 6A
- Thread starter peter vaf
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- Thread starter
- #3
Basically it is
B31 when your design pressures are less than B16.5 class 2500 allowable.
API when your design pressure are above class 2500 allowables.
ASME VIII for pressure vessels.
API can be used below B16.5 class 2500 ratings, but probably at higher cost. The owner may decide which one to use.
A black swan to a turkey is a white swan to the butcher ... and to Boeing.
B31 when your design pressures are less than B16.5 class 2500 allowable.
API when your design pressure are above class 2500 allowables.
ASME VIII for pressure vessels.
API can be used below B16.5 class 2500 ratings, but probably at higher cost. The owner may decide which one to use.
A black swan to a turkey is a white swan to the butcher ... and to Boeing.
- Thread starter
- #5
LittleInch
Petroleum
Peter.
I refer to my answers in your previous post
A response to the questions in that post would be good.
Also define "best". Cheapest?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
I refer to my answers in your previous post
A response to the questions in that post would be good.
Also define "best". Cheapest?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
- Thread starter
- #7
Dear LittleInch
Thank you your supporting.
Also define "best". Cheapest?====>Not Only Cheapest .
I means Practically / Availability and materiality .
My approach is ASME B31.3 CHAPTER IX .
API 6A (6X) method also is practical .But the problem is discontinuity and stress intensity limitation on piping fabrication and welding.
Norsok also has a PMS for piping class 10000#,which material selection of piping is not suitable
A519 AISI 4130==>not easy to welding and commercially is not available in market
Thank you your supporting.
Also define "best". Cheapest?====>Not Only Cheapest .
I means Practically / Availability and materiality .
My approach is ASME B31.3 CHAPTER IX .
API 6A (6X) method also is practical .But the problem is discontinuity and stress intensity limitation on piping fabrication and welding.
Norsok also has a PMS for piping class 10000#,which material selection of piping is not suitable
A519 AISI 4130==>not easy to welding and commercially is not available in market
Special system requirements take more care, time and money. I have never found a way around that.
If you want the best all-around piping system design, specify B31.3 when you are within 2500 class allowables and API when you are not. I do not use VIII for piping, except for requiring an ASME VIII stamp on pig launchers.
That's about it there guy. All in a nutshell.
A black swan to a turkey is a white swan to the butcher ... and to Boeing.
If you want the best all-around piping system design, specify B31.3 when you are within 2500 class allowables and API when you are not. I do not use VIII for piping, except for requiring an ASME VIII stamp on pig launchers.
That's about it there guy. All in a nutshell.
A black swan to a turkey is a white swan to the butcher ... and to Boeing.
LittleInch
Petroleum
I have done it occasionally, but not at 10000 psi.
It created so much trouble trying to locate a choke valve remote from the wellhead that I refused to do it the next time. Why do you want 10000 psi piping on the well head? Horribly thick, huge flanges and bolts and outside many normal design codes.
There's a reason 6A doesn't do piping very well - no one uses it!
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
It created so much trouble trying to locate a choke valve remote from the wellhead that I refused to do it the next time. Why do you want 10000 psi piping on the well head? Horribly thick, huge flanges and bolts and outside many normal design codes.
There's a reason 6A doesn't do piping very well - no one uses it!
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
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