Hi I am newbie. I want to know if leak testing of pressure vessel as per Article 10 of Section V is different from hydrotest / pneumatic test of pressure vessels mentioned in UG 99 & 100 of ASME Section VIII Div 1 . Can i say that hydrotest of pressure vessels is a one-time activity or an...
Hi , I would like to know , if ATEX certification is required for pneumatic actuators for ball valves since these are mechanical items and no electrical circuit is involved. These actuators are for zone 1/0 hazardous areas
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I am a newbie in ASME BPVC Sec VIII standard. I want to know if there are guidelines provided in the code as to the safety factor to be considered in the design of structural support for vessels. Alternatively, how are the allowable stresses for structural support materials taken? Are they...
Hi I am a mechanical engineer and so my electrical-related queries may appear to be totally dumb. My first doubt is: since intrinsically safe equipment is designed to produce very low energy such that ignition of the flammable mixture is avoided, is there any particular requirement that the...
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I am a newbie piping field engineer. I would like to know if standard dimensions of gaskets for Tongue and Groove flanges (ASME B 16.5)are listed in any of the ASME standards. I found that ASME B16.20 is for metallic gaskets and B16.21 is for non metallic gaskets but did not find any...
Hi , I have hydrostatic tested an in-service pipeline (which has been in service for 3 years) to 60 bar. As per ASME B31.3 what should I set the maximum allowable operating pressure of the pipeline as? Can I set it as 60 bar or should it be lower by a factor? I am a newbie in this area and any...
