Hydraulic Gear Pump, Two Stage, Input RPM 3600, 6.7 GPM @ 1000 PSI, 6.3 GPM @ 2000 PSI, 28 GPM @ 250 PSI, Nominal Flow 28 GPM, 15 HP Required, Ports 1 In NPT Inlet, Ports 3/4 In NPT Outlet, Shaft Dia 5/8 In In, Shaft Length 1-1/2 In, 2 Stage Transmission, Displacement @ High Pressure 0.465, Displacement @ Low Pressure 1.395, Drive Shaft 5/8 In, 750 Max PSI 1st Stage, 3000 Max PSI 2nd Stage, Unloading Valve Preset Pressure 650 psi, SAE A Mounting Flange, Clockwise Rotation, Direct Drive
2-Stage Hi/Low Gear Pumps
- For presses, log splitters, clamping units, and compactors. Automatic 2-speed operation. First-stage pump unloads fully at 450 psi; second stage operates up to 3000 psi. Generally, 5-HP input is required for 4F663 and 8-HP for 4F664. Clockwise rotation. 1/2" dia. x 1-1/2"L drive shaft with #404 Woodruff drive key. Motor coupling and adapter not included. Direct drive only. 5ZPL6 and 5ZPL7 have SAE "A" 5/8" keyed shaft.