A Parker pressure-loaded gear pump consists of two, intermeshing, hardened-steel, precision-ground gear assemblies. These precision gears are enclosed by a high-strength, die-cast aluminum front cover,  back cover and a high-yield, strength-extruded aluminum center section. Features Speeds up to 4000 rpm Pressure-loaded design Efficient, simple design - few moving parts Exceptionally compact and lightweight for their capacity … Continue reading D/H/HD SERIES PUMPS