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  1. francifo

    UG 45 minimum nozzle thickness

    Can someone tell me if the following (my interpretation of UG45) is correct: example: UG 45 (b)(1) : 12.95 mm UG 45 (b)(2) : 11.33 mm UG 45 (b)(3) : 5.88 mm UG 45 (b)(4) : 11.33 mm My chosen nozzle thickness is 11.33 mm
  2. francifo

    Heat exchanger expansion joints

    Dear Lukebaker, I just had to use APV for a 2 tubesheets heat exchanger, but I switched to TEMA because the tubesheet thickness, according to the code and therefore to APV, results to be TOO high (260 mm thick !!!!). So with TEMA I had only 110 mm thickness, that sounds ok. Has anybody had the...
  3. francifo

    SA 350 AND RESTRICTIVE WET SOUR CONDITIONS

    Thanks all for the replies doct, I made a mistake, SA350 was intended gr2, here are my customer's specs for forgings and plates, that is why I assumed SA 516 not fitting the specs. I sent my customer a formal request to allow me to use SA 350 and SA 516-60N. I will let you know. Plate steel...
  4. francifo

    SA 350 AND RESTRICTIVE WET SOUR CONDITIONS

    I have to solve a problem regarding the use of SA-340 steel within the more restrictive specifications for Carbon contents and others due to the moderate wet sour HS operating conditions of the vessel. In that case not even the SA-516 60 fit, for the plates!!! Can anyoune give me a suggestion...

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