What is the difference between TEMA and GB151
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What is the difference between TEMA and GB151
GB151 has many contents similar to TEMA
There is not much difference. The compilation of 151 originally refers to TEMA, and some parameters may have different sizes. and domestic operations * used.
The calculation methods of tube sheets are different, and GB151 is a domestically improved calculation method. Others are basically similar, because domestic processing and manufacturing precision is not as good as that in the United States, so some manufacturing deviations are higher.
TEMA seems to have more comprehensive content, such as the issue of double tube sheet heat exchangers.
TEMA heat exchangers are divided into three levels: R, C, and B. The specific technical requirements of different levels are different. Generally speaking, TEMA has more specific requirements for many structures than GB151. For example, the thickness of the composite layer of composite panels has clear regulations, etc.