Sauer Series 20 Axial Piston Variable Displacement Pump Features:
1. Series 20 Axial Piston Variable Displacement Pumps are well engineered and easy to handle.
2. The full-length shaft with a highly efficient tapered roller bearing arrangement offers a high loading capacity for external radical forces.
3. The pumps can be connected with other additional pumps.
4. The hydro-mechanical servo displacement control maintains the selected swash plate position and hence pumps displacement.
5. Upon release of the control handle, the swash plate automatically returns to zero position and the flow reduces to zero.
6. High case pressures can be achieved without leakage even at the lowest temperatures by using suitable shaft seals.
7. The servo valve arrangement offers the facility to incorporate function regulators and remote control systems.
8. Axial piston units are designed for easy servicing. Complete dismantling and reassembly can be carried out with standard hand tools, and all components or sub-assemblies are replaceable.
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Technical Spec.for Hydraulic Pump |
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| Parameter | Units | Specification | |||
| Model No. | PV20 | PV21 | PV22 | PV23 | |
| Max.displacement | ml/r | 33.3 | 51.6 | 69.8 | 89 |
| Max.flow | l/min | 119.54 | 180.6 | 196.14 | 230.51 |
| Charge pump displacement | ml/r | 12.3 | 16.2 | 18.03 | 18.03 |
| Max.pressure | Mpa | 35 | |||
| Rated pressure | Mpa | 21 | |||
| Max.control pressure | Mpa | 3.5 | |||
| Charge pressure | Mpa | 0.8-2.0 | |||
| Max.case pressure | Mpa | Constant0.25 Peak value0.5 | |||
| Max.speed | r/min | 3590 | 3500 | 2810 | 2590 |
| Min.speed | r/min | 500 | |||
| Rated speed | r/min | 1500 | |||
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Dynamic viscosity range of the operating fluid Start Operating Optimum condition |
1000 12-600 25-35 |
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| Operating fluid | Mineral oil | ||||
| operating Temperature | -40 to +50 | ||||
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Max.operating temperature of the oil tank |
80 | ||||
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Filtering precision of the operating fluid |
μm | 10 | |||
| Shaft direction | clockwise/anti-clockwise | ||||
| Max.tilt angle of yhe swash | º | ±18 | |||
| Weight | KG | 45 | 53 | 63 | 78 |
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