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Answer the Daily Question

2016-01-14View Original

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If the vacuum level in a vacuum vessel is greater than 620 mmHg, the nominal pressure class of its vessel flange can be chosen as ( ). A. 0.25 MPa B. 0.6 MPa C. 1.0 MPa. The correct answer for this question is C.
Reply #22016-01-14
C, 1.0 MPa – there should be no problem.
Reply #32016-01-14
I don’t understand why C was chosen. Please explain your reason for choosing C. Thank you
Reply #42016-01-15
Clause HG20583-7.1.5

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Translated at 2026-07-21 00:59:06

Original: https://bbs.hcbbs.com/thread-1536897-1-1.html

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