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  • Users: Bozzy09
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  1. Bozzy09

    DIB-1 Valve Cavity Relief

    Do DIB-1 valves ALWAYS require a means of relieving cavity pressure (either automatically or manually as per API 6D)? My confusion is, for liquid service there should always be an LRK as thermal expansion is likely, but in gas service, is a means of relief required? API 6D is kind of vague as...
  2. Bozzy09

    Process Monoflanges for DBB PIT Isolation

    Hello, Could anyone provide insight into the operability of process monoflanges used for DBB PIT isolation (to replace 2" DIBs or the typical three-valve config.). Also, could someone suggest any preferred suppliers? I know Shell uses the Multi-instruments brand, and my ASME B31.3 instructor...
  3. Bozzy09

    RTJ Flange Applications

    Hello, Could anyone tell me why an RTJ flange would be the preferred option for a molecular sieve in a sour gas plant, or allude to any other applications for these flanges besides the typical #2500 class and greater applications specific to sour service? Thanks!

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