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.
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.
