Thanks for your opinion.Finally we will perform this test after the hydraulic test and once the equipment is completly dried. We will use compressed dry air for the test. The option of the helium test is not economical for us and since it will be ok for our client if the hydrostatic and...
Yes, this test is specified at the client specifications. Recently they have also sent us an email clarifying the specifications for this test. Follow you can see them:
1. Tightness test should be performed after hydrostatic test approval. Tight test pressure should be design pressure at least...
First of all thanks for your attention. The client is requiring me a tightness test (which i understand is a type of pneumatic test) after hydraulic test of several pressure vessels. The design pressure for this equipment is 22 kg/cm2g and he says that this has to be performed at a pressure >=...
If you are calculating a torispherical head, Compress uses for calculation Lo as the inside Crown Radius you specified on the menu plus the minimum thickness after forming that you also specified on the commented F&D (exclusive of corrosion allowance and your calculations are made based on...
Thanks for your answers, i think that the best option will be go for a reduced pad thickness of about 35 or 36 mm as suggested by bhushan76, as the required reinforcement area is too big to go for a forging (we would have to use thickened necks and it is a too expensive solution because there...
Thank you very much both vesselfab and stanweld for your quick response!. I will consult this option; regarding the reinforcement pad, in this case are unavoidable because of design matters (it is not enough with a thickened forging or pipe neck) and because of space matters it is necessary to...
Hi all!
I am currently calculating an equipment with 30 mm C.S. shell thickness which is not required to be PWHT, but on the I/O nozzles we have to use C.S. reinforcement pads with 40 mm thickness because of design /space requirements. Shall we have to PWHT the entire equipment only because of...
