Recent content by Aconnell

Hello Leon, Right away I would say this is an issue of gasket selection, PTFE gaskets are prone to cold flow or creep and loose seating stress even at relatively low temperatures and often require additional torquing after initial service. Others in this forum have already given you some good...

Hello Joss, See PCC-1 appendix D. You can purchase the standard for $92.00 US from ASME

Hello niteshgargeck I thought about posting an excerpt of the paragraph, however for the reasons jte mentioned I decided against it. As jte mentioned it doesn't cost that much and if your company owns and maintains pressure equipment it is a good reference to have on hand anyways.

Before you start using the new code edition you also need to make sure that the jurisdiction you are working in has also adopted the new addition into force.

See ASME PCC-2-2015 Article 3.12 Para 4.2 (a) on Page 133.

Hello Shimo KSor gives good advice don't limit your self to applying for entry level jobs. I work in the Edmonton area and experienced Canadian trained mechanical engineers are hard to find, some companies will settle for alot less than they ask for. I just changed companies in July and my...

I'm not 100% certain but I believe even if a CRN is obtained it also requires a NB registration to ensure that it is inspected and fabricated to the code. I would suggest you contact the pressure equipment regulator for where the vessel is intended and have them provide the requirements in...

Hi Roca, Have a look in the Pressure Vessel Design Manual by Henry Bednar Page 82 (my addition). The four comes from the linear section modulus of the bolt circle which is part of the derivation. If you work alot with pressure vessels I suggest this book, it is an very good reference...

Thanks TGS4, Yes I am using Section VIII, Div 1. Thanks for answering my question. Regards,

Hello, I am looking at laying out a vessel prior to sending it out for budget pricing. For our layout we are potentially looking at having two 20" opening in a 2:1 semi head for an agitator mount and a manhole entrance. To prevent interference of the nozzles the manhole opening would have to...

Hi Gib, You may want to check out the following research council bulletin's which you can order online, WRC Bulletin 477 "Design of Pressure Vessels for High Strain Rate Loading: Dynamic Pressure and Failure Criteria" WRC Bulletin 494 "Fracture-Safe and Fatigue Design Criteria for...

Hi Stringmaker, I didn't realize you were from the US. If your degree is not from a Canadian school I would suggest that you contact APEGGA which is the local regulating body for engineering in the province of Alberta, and have them assess your degree and experience. To be able to practice...

Hi Stringmaker, There isn't much in any of the sectors you mention here, and there is a down turn in hiring as the other posters have mentioned. My first job was actually at a local aerospace company in Edmonton which closed down recently (I left for the chemical industry beforehand). Some of...

Thank you very much for your responses. Trying to figure this out was driving me a little nuts. Regards, Alex

Hello on page 167 of the Pressure Vessel Design Handbook by Bednar in the example for designing support lugs he references a formula to calculate the allowable compressive stress for the gusset. "Sa=18,000/(1+1/18,000*(L/r)^2)=9,885 psi" I cannot find reference to this formula in any...