About pressure piping system leak testing
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Relevant standards require that "leakage tests for GC1 (toxicity), GC1 and GC2 (flammability) grade pipelines should be based on..." ”This sentence is normal to understand: Toxic and flammable GC1 pipelines should undergo sensitive leakage tests. Nowadays, there are GC1 pipelines with non-toxic and non-flammable media, and the design institute must require leakage tests: Q. Have you ever encountered this? How is it generally handled? What should I do if the site does not have the conditions for a leakage test?
The airtightness in the last sentence can be used as airtightness
The piping system uses high-pressure non-toxic, non-flammable liquids, and the piping system (main pipe 16") is relatively complex. It is also very difficult to make air sealing. The key is that it is not necessary!
No need to do, non-toxic and non-flammable, Sh3501
We don’t think it’s necessary, but the design institute insists on doing a leakage test, what should we do: L
The specification stipulates that a rigorous air pressure test can replace the leakage test, and there is nothing that does not meet the conditions.
Another point is that you are the owner and do not violate the* * Under the premise of the specification, the owner has the final say, which means that the design institute shall not arbitrarily add requirements other than the standard requirements without obtaining the consent of the construction unit. Contract first
The design institute can coordinate as long as the supervision and inspection unit approves it, but now some places still use large pipe cabinets. Well, you can try to confirm and do the low-pressure leakage test according to GB/T20801 with a pressure of 105KPa.
A leakage test should be done. Is it possible to use ammonia solution and phenol for a low-pressure test?
Since they are all set to be GC1 pipelines, it must make sense. Since it can be done, there must be a way to test it. I don’t even want to do air sealing. Don’t leave hidden dangers just to save trouble. “Responsibility” * * ”