Hello,
When NFPA #20 requires a pressure relief valve in accord with 5.18.1.1 for a
diesel pump is it an acceptable practice to pipe the PRV discharge piping back
to the source piping? The source is a city water main. I see NFPA 20 has some
info on this but I've never seen it done and was wondering if this would be
designed similar to a flow meter test loop?
Thanks,
Ralph
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