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  1. dadof89

    NFPA 20 Recycle Lines

    DavidCR Thanks for the input. Unfortunately, while our 3 pumps have independent relief/recycle lines, they all tie in to a common tank nozzle with one common block valve, at the bottom of the tank.So not 100% independent. Seems like we may have a bit of a design bust. Is there any internals on...
  2. dadof89

    NFPA 20 Recycle Lines

    We have a firewater system, including a firewater tank, in a rather large industrial plant designed to NFPA 20. As such, there are no valves on the recycle/relief lines back to the tank off of two electric pumps plus one diesel pump except for a common valve at the tank nozzle. My question is...

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