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Min. rated at net pressure for Centrifugal fire pumps

Question asked by Abbas Akhavan on Dec 14, 2017
Latest reply on Jan 18, 2018 by Abbas Akhavan

I do appreciate if you could provide me with some background/history of 4.9.2.in NFPA 20 (Centrifugal fire pumps shall be rated at net pressure of 40 psi or more)? is there any research available from where 40 psi comes from? Thanks.

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