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  • Users: JWJones76
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  1. JWJones76

    Refinery Vessel PSV Requirements

    During a prior HaZop of a refinery process unit (a H2SO4 Alky), it was stated (I assume by the facillitator) that even though the PSV on the isobutane surge drum was adequately sized for the controlling fire case, API codes now required dual PSVs, so a second PSV should be added. I can't find...

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