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English Translations » 【换热设备】 » What is the purpose of evacuating the air cooler after it ha

What is the purpose of evacuating the air cooler after it has been manufactured?

2019-01-09View Original

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What is the purpose of evacuating the air cooler after it has been manufactured? Please give some guidance
Reply #22019-01-09
It doesn’t seem to be a mandatory requirement; the most common practice is to maintain pressure with 0.05 MPa of nitrogen, and vacuum testing is only carried out when negative pressure conditions are required
Reply #32019-01-10
It is to check the leakage rate: a 5-minute test is conducted, with the pressure drop recorded each minute; the values for the first and last minute are excluded, and an average is taken from the middle 3 minutes, as specified.
Reply #42019-01-11
Please let me know what the regulations are there. Thank you

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Translated at 2026-07-21 04:26:36

Original: https://bbs.hcbbs.com/thread-2254859-1-1.html

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