Pressure vessel problems with the plumbing

Pressure vessel problems with the plumbing

Butt joints of pressure vessels for all (100%) or partial (20%) non-destructive testing: When using ray detection, according to the quality of its transparency not less than Class AB, which qualified for the Ⅲ grade level, and there is no welding is not allowed through; when taken ultrasound, its qualified level ⅱ.

Of the GB150, GB151 and other standard provisions of all (100%) non-destructive testing pressure vessels, pressure vessels, the third category, the weld coefficient ⒈ 0 the pressure vessel and can not withstand internal and external inspection or testing of pressure vessels, the butt joint for all (100%) non-destructive testing: when using ray detection, according to the quality of its transparency not less than class AB, the eligibility level for the grade Ⅱ; when using ultrasonic testing, its qualified level ⅰ.



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Keywords: reactor，pressure vessel，heat exchanger