A Variable Speed VFD Fire Pump Controller is a distinct type of fire pump fire pump, resulting in the ability to hold a constant discharge pressure. . Alternative to Pressure Reducing Valves: Provide an alternative to PRVs by
1 Sep 2009 Pilot controlled, it maintains constant system pressure at the pump discharge within very close limits as demands change. The main valve

Pressure regulating valves are required to reduce pressures if the pressure Design Points on the Fire Pump Curve. The estimated discharge pressure for
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