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  • Users: AndyChE
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  1. AndyChE

    RTJ Gasket Temperature Ratings

    Is there a standard that defines the temperature limitations for ring joint gaskets? ASME B16.20 does not list temperature ratings and there was nothing in the manufacturer's literature. We have ASME B16.5 flanges, which define the T&P limitations for the joint, but we are evaluating other...
  2. AndyChE

    Modifications after Hydrostatic/Pneumatic Test

    We have a piping system being built in accordance with B31.3. Due to the layout, we must remove a flanged spool to get our test apparatus in. After we test the piping and replace the spool do we need to retest the two flanged joints? We have similar cases with union joints. My thinking is...
  3. AndyChE

    Modified Flanges as Listed Components

    Can modified B16.5 flanges be used as Listed Components within a B31.3 piping system? In particular I have a 2" blind flange that I want to bore through and slide a 1" tube through and fillet weld on both sides. Also I have several 1", 1½", and 2" lap joint flanges that need to be bored out to...
  4. AndyChE

    ASME B31.3 Applied to Pumps

    In designing an ASME B31.3 piping system, are pumps considered an unlisted component (since they do not have a standard listed in Table 326.1)? As such would they have to have design calculations consistent with the design criteria of the code (i.e. section 304)? I have a client who wants me...

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