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English Translations » 信息处理 » Requirements for the perpendicularity of drill holes in heat

Requirements for the perpendicularity of drill holes in heat exchanger tube sheets

2010-07-16View Original

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As the title suggests, what are the specific requirements regarding the verticality of the holes in the heat exchanger tube sheet, and what are the standards that govern this?
Reply #22010-07-18
We generally determine it based on 9 levels of precision
Reply #32010-07-19
National standard GB-151 specifies requirements for the perpendicularity of tube sheet drilling. You’ll know if you check

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Translated at 2026-07-27 03:07:06

Original: https://bbs.hcbbs.com/thread-699630-1-1.html

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