Maximum Allowable Operating Pressure: Low Pressure Distribution Systems (16.10)

Criticality: Medium
Progress: Addressed, Not Adequately
Score: 12
DOT Relevance: §192.623

Description of Key Area

Section 192.623 details the maximum allowable operating pressures for low pressure distribution systems.

Discussion of Criticality

It is not yet clear if MAOP determination methods need to be altered for hydrogen high pressure distribution systems.

Discussion of Progress

At this time, no change is anticipated in ASME B31.12 relative to ASME B31.8.

Recommendations

Standards for maximum allowable operating pressure for hydrogen pipelines must be incorporated by reference into the federal code.