Danfoss logo
Rugid cast iron gear pumps-product-category

Rugid cast iron gear pumps

Our long-lasting Rugid cast-iron gear pumps are made for high-flow applications that demand peak performance under extreme conditions including pressures up to 276 bar [4,000 psi] and intermittent temperatures up to 115°C [239°F]. They feature displacements up to 90 cm3 [5.40 in3], durable cast-iron construction, and an advanced pressure plate design.

Features and benefits 

  • High-strength cast iron construction allows consistently efficient performance 
  • Custom-engineered shaft bearings and dual pressure-balanced thrust plates optimize internal bearing lubrication, allowing for high starting torque and long life with fluid viscosity as low as 8 mm²/sec [52 SUS] 
  • Compact three-piece ductile iron construction with bearings located in the front flange and rear cover minimizes overall package length and increases radial load-carrying capability  
  • Pressure-balanced thrust plates provide improved efficiency at extreme pressures and temperatures
  • High-temperature Viton® seals are well suited for today’s hotter-running machines 
  • Located in the front flange, high-quality steel-backed bronze bearings provide maximum pressure handling capacity, allowing extended radial loading without an external roller bearing  
  • Available with side or rear ports, SAE A or B flange, an a variety of shaft options  

 Applications 

  • Agriculture
  • Construction
  • Forestry
  • Marine
  • Material handling
  • Mining and petroleum
  • Transportation 

Specifications and drawings

Frame Size  Displacement cm3 [in3]   Rated pressure bar [psi]  Min. speed rpm *  Max. speed rpm Theoretical flow at max.

speed l/min [US gal/min]
07 7.0 [0.43] 276 [4,000] 1,200 3,400 24.0 [6.3]
10 9.5 [0.58] 276 [4,000] 900 3,400 32.3 [8.5]
11 10.8 [0.66] 276 [4,000] 900 3,400 36.7 [9.7]
13 12.6 [0.77] 276 [4,000] 700 3,400 42.9 [11.3]
14 14.3 [0.87] 276 [4,000] 700 3,400 48.5 [12.8]
17 17.0 [1.04] 276 [4,000] 600 3,400 57.9 [15.3]
19 19.0 [1.16] 276 [4,000] 600 3,400 64.6 [17.1]
21 20.5 [1.25] 276 [4,000] 600 3,400 69.6 [18.4]
23 22.5 [1.37] 276 [4,000] 600 3,400 76.3 [20.2]
25 25.4 [1.55] 276 [4,000] 600 3,400 86.4 [22.8]
29 29.0 [1.77] 276 [4,000] 600 3,200 92.8 [24.5]
32 31.8 [1.94] 276 [4,000] 600 3,000 95.4 [25.2]
36 36.1 [2.20] 241 [3,500] 600 2,750 99.0 [26.2]
38 38.0 [2.32] 228 [3,300] 600 2,750 104.5 [27.6]
41 41.0 [2.50] 207 [3,000] 600 2,500 102.4 [27.1]
45 45.1 [2.75] 190 [2,750] 600 2,500 112.7 [29.8]

* minimum speed at maximum pressure

For more information, see Rugid Cast Iron Group 2.5 Pump Technical Information.

 

Rugid Cast Iron Drawing

Products shown: 4

  • Rugid cast iron single stage category image

    Rugid cast iron single stage

    Our compact single pumps provide high power density, relief valves, and optional process flow diagrams (PFDs) on their covers.

  • Rugid cast iron two stage category image

    Rugid cast iron two stage

    Our two-stage pumps have internal splined drive shafts connected through a coupling and an intermediate steel plate. The two pumps are hydraulically independent, which allows them to efficiently address different machine functions while saving space. Inlet ports can be shared or separate, and relief valves and optional process flow diagrams (PFDs) on the pump covers are available.

  • Rugid cast iron three stage category image

    Rugid cast iron three stage

    Our three-stage pumps have internal splined drive shafts connected through a coupling and an intermediate steel plate. The three pumps are hydraulically independent, which allows them to efficiently address different machine functions while saving space. Inlet ports can be shared or separate, and relief valves and optional process flow diagrams (PFDs) on the pump covers are available.

  • Rugid cast iron four stage category image

    Rugid cast iron four stage

    Our four-stage pumps have internal splined drive shafts connected through a coupling and an intermediate steel plate. The four pumps are hydraulically independent, which allows them to efficiently address different machine functions while saving space. Inlet ports can be shared or separate, and relief valves and optional process flow diagrams (PFDs) on the pump covers are available.