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  • Users: 4xeng
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  1. 4xeng

    Required flow capacity for a water storage vessel, fire case

    Hello all, I am trying to size a relief valve for a water storage vessel for fire case. Normally I would use CGA s1.2 for ammonia and use posted Gi/Gu values. But let's say there is only water in the vessel. I want to size a valve for fire case where water boils and turn into steam and steam...
  2. 4xeng

    Lateral buckling of the stiffening ring for external pressure loading.

    Hello, I am learning about pressure vessel design for external pressure (vacuum). Just doing the exercise. Not designing the actual vessel. I came across cautionary note in UG-29 (a) that the stiffening ring may be subject to lateral buckling. And this should be considered in addition to the...
  3. 4xeng

    UW-16(f)(2) exemption

    Hello all, Consider a case where a standard 1"-6000# threaded coupling is being attached to a pressure vessel by outside and inside fillet welds only. It can be attached using figure UW-16.1 sketch (y-2). However, I am using exemption UW-16(f)(2) and using minimum fillet weld sizes. To use...
  4. 4xeng

    Is there any guidebook to properly size excess flow valves for propane (Liquid and vapour)?

    Hello all, Just wondering if any of you came across a good guidebook to properly size excess flow valves for Propane. Please share. Thanks

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