83012165

The 83012165 pump is manufactured by Danfoss for the Open Circuit Piston Pumps series. It supplies variable flow in hydraulic automation where stable pressure and accurate feedback are required. A displacement of 130 cc per revolution defines the volume delivered during each shaft rotation, allowing designers to size circuits for specific actuator speeds. Pressure compensated and load sensing control continuously adjusts the swashplate so flow matches load demand, preventing excess heat. The unit operates safely up to 310 bar of continuous pressure, supporting high-force cylinders. Counter-clockwise rotation matches prime movers that turn left-hand, avoiding coupling misalignment. A SAE-C four-bolt front flange provides a rigid mounting face for engine or electric motor adapters. The 2.5-inch inlet port admits low-velocity fluid to reduce cavitation, while the radial port orientation positions hoses around the housing without tight bends. Viton seals withstand hot oil and aggressive additives, maintaining leakage control under full duty.

An SAE-A auxiliary flange on the rear accommodates piggyback gear pumps, and its 9-tooth drive permits direct torque transfer to small auxiliary sections. The load sensing circuit is preset to 20 bar, so the pump trims flow when downstream pressure rises above that differential. A pressure compensation setting of 250 bar overrides load sensing to limit maximum outlet pressure and protect work ports. Delivered flow exits through a 1.25-inch outlet port sized for nominal line velocity, and a 0.5-inch threaded case drain simplifies return plumbing. The shaft uses a 12/24 pitch with 14 teeth, giving a fine spline that balances torque capacity with easy alignment during assembly. The compact port arrangement leaves clearance for surrounding components, assisting in confined skid frames. Together these features allow the 83012165 pump to integrate into mobile or industrial open-circuit systems without additional adapters or complex controls.