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  1. pHreaC

    TEMA R : confined gasket

    So an outer ring makes a gasket confined. But is it necessary to have on outer ring on a Kammprofile to be in compliance with TEMA R? grtz
  2. pHreaC

    PWHT?

    PWHT is needed only once per weld over 38mm (CS, or 32mm if not preheated during welding). If it has undergone PWHT already I would think only the new weld would be needing PWHT. Same thing when making a vessel in two parts, pwht-ing them. Then welding a closure seam and local pwht on the...
  3. pHreaC

    TEMA R : confined gasket

    An outer ring is a way of confining a gasket. So if I were to use a spiral wound gasket and add an outer ring to it, it would be confined and ok with TEMA R. The reason of the confinement is 'blow out' of the seal. I don't see how a camm profile would 'blow out'. Tema however specifically tells...
  4. pHreaC

    TEMA R : confined gasket

    Does a CAMM-profile gasket require an outer ring to be confined? Do I list it under the solid metal gaskets?
  5. pHreaC

    lifting/tailing calculation

    You could use DIN28086.

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