Side-ported adjustable flow control valve used to stop or start a hydraulic motor or cylinder Top adjustable Ball Spring Relief Port, excess flow will be returned to tank or or used to power another function Can vary speed over wide range, will maintain constant speed evenly regardless of load variation after setting Replacement of FCR51-1/2 or PFC51-1/2, Weight: 5.9 LB, Durable and Safe Cast Iron Body, Max Flow Rate: 30 GPM, adjustable Flow Rate: From 0 to 30 GPM Port Size: 1/2” NPT, Max Working Pressure: 3002.28 PSI / 20.7 Mpa Port IN ( Inlet Port ) Port CF ( Controlled Flow ): Flow from this port is pressure compensated and proportional. Depending on the position of the lever, the flow can be from closed to fully open Port EX ( Excess Flow ): Outflow from this port if pressure compensated. If the lever is set to 0, all traffic will flow out of this port Port Top Relief : Adjustable Ball Spring Relief Port Product Name: Hydraulic Adjustable Valve Side-Port Variable Flow Control 1/2" NPT Port 30 GPM with Relief