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The Multi-Port Metering Valve offers the simplicity and reliability of fixed orifice metering coupled with the flexibility of eight air actuated ports. The valve can be custom configured to have from 1 to 8 ports. Each port can be selected to meter solution flows from 30 gpm (114 Lpm) @ 3% up to 750 gpm (2,893 Lpm) @ 6%.
The WILLIAMS FIRE & HAZARD CONTROL Pressure Reducing Valve (WPRV) maintains constant pre-set inlet pressure for use in conjunction with the Around The Pump (or comparable) foam systems. It allows any firefighting water pump to produce suction side foam at virtually any positive inlet pressure.