Parker’s 031 series fixed/positive displacement gear pumps offer high durability & resistance to oil contamination due to their cast iron, roller bearing construction, making them an ideal selection for the Vocational Truck, Winch, and Oil & Gas markets. They are available as single or multi-section pumps with an integral valve.

Technical Specifications: • Flow range to 38.4 gpm (145.4 lpm) per section • Displacements from .985 to 3.94 cir (16.2 to 64.6 cc/rev) • Operating pressures up to 200 bar (3,000 psi) • Speeds up to 2,400 rpm • Volumetric efficiencies up to 95% • CW, CCW, and Bi-rotational pumps available • SAE and SI shafts, flanges and porting available • Multiple section • Extensive integrated valve capabilities - Relief with anti-cavitation check - Priority flow control - Unloader valves - Accumulator charge (single and dual) - Two-speed valves (winches, ground drives) - Load sense priority flow divider (bolt-on) - Dry valves, HOC™ (hydraulic overspeed control), flow controls - Crossover relief valves

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