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  1. cocky2001

    BPVC Sec. VIII vs. ASME B31.3

    Does anyone know if Section VIII supersedes B31.3. Or is there a hiearchy for these standards. I have a customer who wants to re-rate a ASME Section VIII pressure vessel to meet B31.3. I am not sure if the design will change or just the inspection and NDE requirements. Any thoughts here...
  2. cocky2001

    ASME Sect. VIII - Flange Calcs

    Yeah, it would certainly be eaiser to use 300# flanges but then I would have to change the Product Manager's mind. And I think we all know the difficulties of changing Marketing's mind. Thanks for the help.
  3. cocky2001

    ASME Sect. VIII - Flange Calcs

    1) If I run the Sect. VIII appendix 2 calcs on a standard B16.5 flange, can I use it for a higher temp/press rating? Vessel design conditions are 200psig & 650°F, but B16.5 says that for a 4" flange (SA-105) at 650°F the pressure rating is only 125psig. I have done most of the calcs by hand...
  4. cocky2001

    Socket Weld Connection (heat transfer)

    Thanks all for the input. I will give it a go.
  5. cocky2001

    Socket Weld Connection (heat transfer)

    Yes, the product is a valve. The internals can only withstands a certain temperature. So, I am looking to determine if the process of welding the pipe in the SW connection will transfer too much heat to these internals. Only concerned with the temperature of the product. So I want to know how...
  6. cocky2001

    Socket Weld Connection (heat transfer)

    Looking to determine the temperature at center of my product as it is welded in a system. The product is 304SS.
  7. cocky2001

    Socket Weld Connection (heat transfer)

    What is the temperature during the process of welding a 3/4" pipe into a socket weld connection?
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