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Manway is near top of vessel, so 2m height for hydrotest was not achieved. No design calculations are available for the manway flange.

@LittleInch Vessel is holding only gas. It was hydrotested full of water.

Hello everyone, thanks for your quick responses. really appreciate that. I am attaching the snapshot of the nozzle details for your refernece. Few comments: 1) The vessel is indeed neither ASME U stamped nor PED compliant, as original design pressure was 6kPa. Hence the design is based on...

Hello, I am currently working on a case for re-rating of pressure vessel. The vessel is currently designed for 6 kPa and needs to be re-rated for 20 kPa. I am checking the manway flange design (its a non standard flange- ring type flange with plate used as blind cover). I tried ASME Appendix 2...