English Answer: The PV2R1/PV2R2/PV2R3 series are fixed-displacement vane pumps developed by YUKEN and its compatible manufacturers, with design features tailored for heavy-duty mobile equipment:
- High-pressure adaptability: Optimized stator strength and thin-blade design enable a maximum pressure of 21MPa with anti-wear hydraulic oil , meeting the high-pressure demands of excavator boom lifting and concrete mixer drum rotation.
- Low-noise operation: Unique stator transition curve design reduces fluid turbulence and vane impact, resulting in noise levels significantly lower than conventional gear pumps—critical for operator comfort in excavator cabs .
- Compact modular structure: The pump core is easy to disassemble and maintain, allowing quick repairs in construction sites where downtime must be minimized .
- Stable flow output: Minimal pressure pulsation ensures smooth operation of excavator hydraulic cylinders and consistent rotation speed of concrete mixer drums, preventing material segregation .
| Parametro |
PV2R1 |
PV2R2 |
PV2R3 |
| Gamma di spostamento |
5.8-31 ml/r |
26.6-74.6 ml/r |
52.2-153 ml/r |
| Pressione massima |
21 MPA (anti-wear oil) |
21 MPA (anti-wear oil) |
21 MPA (anti-wear oil) |
| Gamma di velocità |
750-1800 RPM |
600-1800 RPM |
600-1800 RPM |
| Peso |
~9-11 kg |
~19-23 kg |
