Inheriting the core advantages of the PV2R3 series, the PV2R3-76 delivers exceptional quiet operation and high-pressure performance for demanding industrial environments.The pump represents the 79.2 mL/rev displacement model within Yuken's PV2R3 series of low-noise, high-pressure vane pumps.
Inheriting the core advantages of the PV2R3 series, the PV2R3-76 delivers exceptional quiet operation and high-pressure performance for demanding industrial environments.The pump represents the 79.2 mL/rev displacement model within Yuken's PV2R3 series of low-noise, high-pressure vane pumps.
1. Model Interpretation: PV2R3-76
• PV: Yuken vane pump series code, indicating a variable-displacement vane design capable of flow adjustment.
• 2R: Dual-pump identifier, signifying two independent pump units connected in series to provide two distinct flow rates or pressures simultaneously.
• 3: Displacement class, typically corresponding to 3 mL/rev for the single pump section (PV2R3 part). Specific values should be verified against Yuken’s official data.
• 76: May denote a series sub-model or port size identifier, used to differentiate pressure ratings or mounting configurations.
2. Core Performance Parameters
(1) Basic Specifications
• Displacement Range:
• Single pump: 3 mL/rev (PV2R3 section)
• Dual-pump total: 76 mL/rev (PV2R3-76 overall, subject to model definition verification)
• Rated Pressure:
• Continuous operating pressure: 21 MPa (3,000 psi)
• Peak pressure: 25 MPa (3,600 psi)
• Speed Range: 600–1,800 rpm, adaptable to varying operational conditions.
• Flow Range: Based on displacement and speed, single-pump flow ranges from 1.8–5.4 L/min, with higher combined flow for dual-pump configurations.
(2) Efficiency Metrics
• Volumetric Efficiency: ≥90% (tested under ISO standard conditions)
• Total Efficiency: ≥82%, delivering significant energy savings.
• Pressure Pulsation: ≤±1.5%, ensuring smooth operation.
3. Structural and Design Features
(1) Dual-Pump Configuration
• Independent Circuits: Two pump units can drive separate actuators (e.g., hydraulic cylinders, motors) for synchronized or asynchronous control.
• Compact Design: Short axial length saves installation space, ideal for multi-circuit hydraulic systems.
(2) Vane and Stator Technology
• Precision Vanes: Wear-resistant alloy steel vanes paired with optimized stator curves minimize leakage and extend service life.
• Variable Displacement: Some models support pressure compensation or flow regulation to adapt to load variations.
(3) Sealing and Reliability
• Dual Sealing: Shaft ends use composite seals (e.g., lip seals + O-rings) to prevent leaks.
• Bearing Design: High-strength roller bearings withstand radial and axial loads, achieving lifespans exceeding 10,000 hours.
4. International Standards and Certifications
• Compliance Standards:
• ISO 4413 (Hydraulic fluid power – Test methods for pumps, motors, and integral units)
• DIN 24333 (Hydraulic pump performance testing specifications)
• Certifications: CE (EU Safety Certification), UL (U.S. Safety Certification), suitable for global markets.
5. Typical Applications
• Industrial Hydraulics: Power sources for injection molding machines, die-casting machines, and machine tools.
• Construction Machinery: Multi-action synchronized control in excavators and cranes.
• Marine & Offshore: Dual-circuit hydraulic drives for steering gears and deck machinery.
• Energy Sector: Pitch control systems in wind turbines and hydraulic controls for gas turbines.
6. Maintenance and Troubleshooting
(1) Routine Maintenance
• Oil Cleanliness: Maintain NAS 6 or ISO 4406 18/16 cleanliness levels; replace filters regularly.
• Temperature Monitoring: Operate at 40–60°C (104–140°F); avoid exceeding 85°C (176°F) to prevent seal degradation.
• Regular Inspections: Check oil levels, leaks, and noise every 500 hours; replace hydraulic oil every 2,000 hours.
(2) Common Faults and Solutions
【表格】
Symptom Possible Causes Solutions
Insufficient flow Worn vanes, clogged suction line Replace vanes, clean suction line
Pressure fluctuations Air ingestion, stator wear Vent system, replace stator
Abnormal noise Bearing failure, misaligned coupling Replace bearings, align coupling
Dual-pump flow imbalance Regulator valve malfunction, internal leakage Check regulator, replace seals
7. Selection and Alternative Recommendations
• Selection Criteria: Choose based on system pressure, flow requirements, installation space, and budget.
• Alternative Models: If PV2R3-76 is discontinued, consider Yuken’s other dual-pump series (e.g., PV2R4-XX) or comparable products (e.g., Denison T6 series dual pumps).
