1 1/4" Suction x 1" Discharge Pump; 100 PSI, 4600 RPM, 75 GPM, 4 GPM Hydraulic Motor; Pressure Comp. Closed/Open Center System; FMC-HYD-204 The 204 motor requires 4 GPM(15.1 LPM) maximum hydraulic fluid input. Recommended for: Pressure Compensating Closed Center Systems Open Center Systems up to 13 GPM (49.2 LPM) using internal needle valve bypass. Ace developed the first hydraulic motor driven pump at the request ofJohn Deere in 1969. Many of the original pumps are still operating todayafter more than 30 years of service. Centrifugal pump design provides good resistance to abrasive solutionsand extra flow for agitation. The advantages of the hydraulic motordriven pump are mounting versatility, customized performance, and ease of maintenance. All hydraulic driven pumps are equipped with a stainless steel shaft and wear ring for excellent corrosion resistance. MOUNTING VERSATILITY: The location of the pump is not tied to the PTO orengine drive shaft; the pump can be mounted in a variety of locations to suit application requirements. CUSTOMIZED PERFORMANCE: The performance is dependent on the supply ofhydraulic oil to the motor and not necessarily tied to engine speed. Ahydraulic Roundup logodriven pump can produce higher pressures than PTO or belt driven pumps. They can also hold constant pressure at varying engine speeds on closed center hydraulic systems.