Classification of inner and outer coils in atmospheric pressure vessels
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Thus, in accordance with TSG21-2016, our company currently has a reactor vessel; the inner cylinder operates at atmospheric pressure, and it is equipped with a heating coil inside as well as a semi-circular heating coil on the outside. Depending on whether the Solid and Liquid Equipment Regulations require supervision and inspection, it is manufactured under atmospheric pressure conditions
I don’t understand what is being said. Is it asking about coil manufacturing?
According to the new regulations, pipes with an inner diameter of less than 150 mm are not subject to inspection.
It also depends on what the inner diameter of the heating coil is...
For DN150 and below, inspection is not required according to the major capacity regulations.
Generally, the coil size does not exceed 150, so monitoring and inspection are not necessary.
Those with an inner diameter of less than 150 mm are
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The new regulatory standards specify that the steam heating coils in atmospheric-pressure vessels are no longer subject to regulation; the original poster can take a look at point 6 of section 1.5 under the scope of application in the revised regulations.
If the diameter is less than 150 mm, no supervision is required