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English Translations » 炼制(催化焦化深加工) » What does '' mean in PID diagrams?

What does '' mean in PID diagrams?

2017-03-08View Original

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For example, what does the marking of 2'' on a gate valve mean?
Reply #22017-03-08
Are centimeters and inches the same concept? 2 inches is DN50
Reply #32017-03-08
When speaking, it’s easy to miss the character \" English \" in inch. It seems to be “inch”.
Reply #42017-03-08
American standard valve, 2 inches, equivalent to DN50
Reply #52017-03-09
Actually, writing it this way is not standard; there are no national standards that require such a format, although everyone knows what’s going on
Reply #62017-03-09
Imperial unit, the symbol for inch.
Reply #72017-03-09
Imperial unit, the symbol for inch.

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Translated at 2026-07-21 05:08:37

Original: https://bbs.hcbbs.com/thread-1759919-1-1.html

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