Open Circuit Piston Pump


The D1 pump is a high pressure, high flow variable displacement axial piston pump, developed specifically for open circuit systems in the most extreme application environments. Its robust design makes it an ideal solution for mining, heavy duty construction, forestry, material handling and marine, oil and gas markets.


The addition of the D1 pump expands the Danfoss open circuit portfolio to include higher hydraulic power options — up to 160gpm [600lpm] — for OEM customers. Working seamlessly with the new PVG 128/256 high flow valves, OEMs can extend hydraulic support for all their high flow system needs.


The pump’s advanced open circuit control options make it ideal for drill rigs, artificial lift systems, harvesters, mulchers, wheel loaders, dumpers, pipe-handling systems and more.



  • Four displacement options from 130-260cc
  • Pressure, load sense, power limiting and displacement controls
  • Output pressure up to 350bar [5075psi] continuously, 400bar [5800psi] intermittently
  • An integral charge pump allows the D1 pump to run at speeds up to 2500rpm
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