Cast Iron Gear Pumps D Series

The D Series fixed displacement gear pump has been specifically designed for demanding mobile equipment applications where maximum performance is required at peak power levers and operating temperatures.

The D pump Danfoss (Turolla OpenCircuitGearTM) blends the traditional Group 2 (SAE-A) and Group 3 (SAE-B) frame sizes in a single package with displacements from 7 cc to 45 cc. These displacements, in additional to a wide variety of shafts, flanges, ports and integrated valve options can be used in virtually any combinantion to offer greater design flexibility and meet specific application requirements. 

The three piece structural members of the pump are made of high-strength cast ductile iron. Cast iron provides contamination resistance, thermal stability and the strength needed for consistently high levels of performance and durability needed in demanding off highway applications.

Heavy duty, low friction, PTFE-lined sleeve bushings have been optimized to provide long life in low viscosity, high pressure conditions. The bearings are located in the front mounting flange, rear cover and bearing plate (for multiple section pumps) and allow the D pump to be 20% shorter than a typical bearing block design pump.

The D series pump is commonly applied in the following type of applications:

  • Wheel loader
  • Mining equipment
  • Skin steer loaders
  • Work function attachments
  • Agricultural sprayers
  • Pavers
  • Fan drives