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  1. AlisonM

    Deluge Nozzle Pressure

    NFPA 15 section 8.1.2 states "Minimum operating pressure of any nozzle protecting outdoor hazards shall be 20 PSI (1.4 bar)." Whilst NFPA 15:A8.1.2 states "The minimum operating pressure is required for proper pattern development and to overcome the effects of wind. For nozzles with orifices of...

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