PV2R24A/34A Series Yuken Fixed Displacement Double Vane Pumps

1. Product Overview

2. Core Features

1. High Pressure and Stable Performance

• Maximum pressure up to 21MPa (210 bar): Exceptional pressure resistance for demanding industrial applications;
• Stable flow output: Fixed displacement design ensures consistent flow delivery proportional to rotational speed, ideal for systems requiring precise flow control;
• Low pulsation: Advanced vane design minimizes flow pulsation, reducing system vibration and noise;

2. Compact Double Pump Design

• Dual pumping units: Combination of PV2R4A (large capacity) and PV2R2/PV2R3 (small capacity) vane pumps in one housing, driven by a single shaft, saving installation space and reducing component count;
• Independent circuits: Two separate discharge ports allow for different pressure/flow requirements in a single system, optimizing energy usage and system flexibility;
• Cartridge kit design: Internal components assembled as replaceable cartridges for quick maintenance and reduced downtime;

3. Low Noise and Environmental Performance

• Optimized noise reduction: Special vane and cam ring design reduces operating noise to as low as 65 dB(A) under standard conditions, improving workplace environment;
• Long service life: High-quality materials and precision manufacturing ensure extended operational lifespan with minimal wear;
• Environmentally friendly: Efficient design minimizes energy consumption and reduces hydraulic oil contamination risks;

4. Versatile Application Capability

• Wide displacement range: Double pumps offer combined displacement from 142.5 to 309 cm³/rev (PV2R4A: 138.5/162.6/194 cm³/rev + PV2R2/PV2R3: 4/10/26/33/41/60/94 cm³/rev), covering diverse flow requirements;
• Multiple mounting options: Available in flange and foot-mounted configurations to suit different installation requirements;
• Flexible rotation directions: Clockwise and counter-clockwise rotation options for versatile system integration;

3. Model Specifications

4. System Composition and Working Principle

1. Basic Structure

• Dual vane pumping units: Combination of PV2R4A (large capacity) and PV2R2/PV2R3 (small capacity) vane pumps integrated in a single housing, sharing a common drive shaft;
• Cam ring and rotor assembly: Each pump features a precision cam ring, rotor with sliding vanes, and pressure plate for efficient fluid displacement;
• Common suction port: Single inlet supplies hydraulic fluid to both pumping units, simplifying system piping;
• Dual discharge ports: Two separate outlets for independent flow control to different hydraulic circuits;
• Cartridge assembly: Internal components (rotor, vanes, cam ring) are assembled as replaceable cartridges for easy maintenance;

2. Working Principle

1. The common drive shaft rotates both pump rotors (PV2R4A and PV2R2/PV2R3) simultaneously when powered by an electric motor;
2. Vanes in each rotor slide outward due to centrifugal force and pressure, maintaining contact with the cam ring inner surface to form sealed chambers;
3. As the rotor turns, chamber volume increases at the suction side (drawing fluid in) and decreases at the discharge side (forcing fluid out);
4. Two independent flows are delivered through separate discharge ports, providing flexible flow distribution for complex hydraulic systems requiring dual circuit operation;

5. Main Application Fields

5. Injection molding machines: Precise flow control for mold closing, injection, and holding phases;
6. Hydraulic presses: Stable pressure output for forming and stamping operations;
7. Die casting machines: High flow capacity for rapid mold filling and solidification processes;
8. Machine tools: Precise hydraulic control for tool positioning and clamping systems;
9. Plastic extrusion equipment: Consistent flow for uniform product dimensions and quality;
10. Automated production lines: Compact design and dual circuit capability for space-efficient multi-function systems requiring independent flow control;

6. Summary of Technical Advantages

• High efficiency: Optimized vane design and precision manufacturing minimize internal leakage and maximize volumetric efficiency;
• Space saving: Dual pump integration reduces installation footprint by up to 30% compared to separate pump configurations, while PV2R4A’s compact design provides additional space savings;
• Cost effective: Simplified design and reduced component count lower system costs and maintenance expenses;
• Cost effective: Reduced component count and simplified piping lower system costs and maintenance expenses, while dual circuit operation eliminates the need for additional pumps;
• Maintenance friendly: Cartridge kit design enables quick repair and minimizes downtime;