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  1. Fred Gh

    SW flange in Class 2500

    Hey LittleInch, thanks for advice. High pressure piping classes need to be added to the Project PMS which currently covering lower than CL1500. So this is why I am asking these questions. Also I preferred to ask here to collect more opinion of professional people in addition to internal...
  2. Fred Gh

    SW flange in Class 2500

    Hi Everyone, r6155 Thanks for the compliment 😊 Also special thanks to 1503-44 for all shared information and links. Valves are manual and as I said DN15 to 40 is size range. Thanks All, Fred G
  3. Fred Gh

    SW flange in Class 2500

    Thank you so much everyone for your responses. So, I understand that not only for flanges but for all other fittings we need to define Buttweld connection on our CL2500 piping Spec. Just for more info Flange material is A182 GR F316/F316L and pipe is A312 TP316/316L. service is Hydrogen...
  4. Fred Gh

    SW flange in Class 2500

    Hi Everyone, I noticed there is no SW flange in Class 2500 of ASME B16.5. Does this mean that we can't/not allowed to have SW flange in class 2500? And if allowed, which part of standard can be referred to for dimensions? Thanks in advance, Fred G

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