MAOP < Design Pressure ???
MAOP < Design Pressure ???
(OP)
Hi again,
I am using Ultrapipe to determine de remaining strength of a corroded pipeline. ASME B31.G compares the MAOP with the safe maximum pressure for the corroded area. But, Ultrapipe compares this last pressure with the Design Pressure.
Is the Design Pressure always greater than the MAOP? Is that why Ultrapipe uses the DP instead of the MAOP?.
CorpMex.
I am using Ultrapipe to determine de remaining strength of a corroded pipeline. ASME B31.G compares the MAOP with the safe maximum pressure for the corroded area. But, Ultrapipe compares this last pressure with the Design Pressure.
Is the Design Pressure always greater than the MAOP? Is that why Ultrapipe uses the DP instead of the MAOP?.
CorpMex.





RE: MAOP < Design Pressure ???
The maximum operating pressure is / was always the minimum design pressure specified for a pressure equipment. The design pressure may be selected higher than the operating pressure, to include some contingency for unexpected additional lods. In no case, the design pressure should be less that the MAOP.
Do not confuse the operating pressure with the maximum allowable working pressure, which is usually higher than the design pressure, but not less than the design pressure.
Cheers,
gr2vessels
RE: MAOP < Design Pressure ???
Thanks.
RE: MAOP < Design Pressure ???
The rules of this forum requires you to start a new thread for your technical clarifications. Please do not derail the topic of this thread.
cheers,
gr2vessels
RE: MAOP < Design Pressure ???