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Listed PSV manifold in NFPA 58 for LPG storage?

Question asked by dellawong02@gmail.com on Jun 14, 2019
Latest reply on Jun 21, 2019 by safteng

I was wondering what the intent of a listed manifold for PSVs is in NFPA 58, section 6.9.2.9. On our LPG bullets we have two independent lines communicating with the vapor space instead of a single manifold. Each line has a CSO valve and a PSV that can handle full relief capacity. Would we still be exempt from the restriction on inlet valves per section 5.9.2.10 and 6.9.2.8?

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