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A4VTG Series Hydraulic A4Vtg71 Rexroth Swashplate Design Boost Pressure Relief Valve Piston Pump
- Feature
- Model code
- Related Products
Feature:
1).Integrated auxliay pump for boost and piot oilsupply.
2).Flow direcion changes smoothy when the swashplate is moved through the neutral postion
3).High-pressure relief valves with integated boost function.
4).With adjustable pressure cut-off as standard
5).Boost-pressure relief valve
6).Through drive for mounting of further pumps up to same nominal size
7).Large variety of controls
8).Swashplate design
| Size | NG | 71 | 90 | |||
| Displacement | variable pump | Vg max | in³ | 4.33 | 5.49 | |
| cm³ | 71 | 90 | ||||
| boost pump(at p=290 psi(20 bar)) | Vg sp | in³ | 1.25 | 1.65 | ||
| cm³ | 20.5 | 27 | ||||
| Speed | at Vg max | Nnom | rpm | 3300 | 3050 | |
| minimum | nmin | rpm | 500 | 500 | ||
| Flow | at nnom and Vg max | qv max | gpm | 62 | 72 | |
| I/min | 234 | 275 | ||||
| Power¹) | at nnom,Vg max and | △p=5800 psi | Pmax | hp | 210 | 244 |
| △p=400 bar | Pmax | kW | 156 | 183 | ||
| Torque¹) | at Vg max and | △p=5800 psi | Tmax | lb-ft | 333 | 422 |
| △p=400 bar | Tmax | Nm | 452 | 573 | ||
| △p=1450 psi | T | lb-ft | 83 | 106 | ||
| △p=100 bar | T | Nm | 113 | 143 | ||
| Rotary stiffness | drive shaft M9 | C | lb-ft/rad | On request | ||
| Nm/rad | ||||||
| Moment of inertia for rotary group | JGR | Ib-ft² | 0.2302 | 0.3536 | ||
| kgm² | 0.0097 | 0.0149 | ||||
| Maximum angular acceleration²) | α | rad/s² | 21000 | 18000 | ||
| Filling capacity | V | gal | 0.34 | 0.32 | ||
| L | 1.3 | 1.2 | ||||
| Mass approx. (without through drive) | m | lbs | 112 | 117 | ||
| kg | 51 | 53 | ||||
