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How to conduct pressure testing on CNG pipelines with a design pressure of 28 MPa?

2016-09-09View Original

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This post was last edited by einstein1112 on 2016-9-9 18:01. How to conduct pressure testing for CNG pipelines with a design pressure of 28 MPa? Everyone who is answering, please note that 28 MPa is the key point of my question. . . . Has it been done before?
Reply #22016-09-09
Perform a pressure test with water, then conduct a tightness test with air, and finally purge with air

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