PV2R4A Series Yuken Fixed Displacement Single 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 Single Pump Design

• Single pumping unit: One PV2R4A vane pump in a compact housing, driven by a single shaft, saving up to 50% installation space compared to PV2R4 series;
• Single circuit operation: One suction and one discharge port for straightforward system integration and precise flow control;
• 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

• High flow displacement range: Single pumps offer displacement options of 138.5, 162.6, and 194 cm³/rev, covering high-flow hydraulic system 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

• Single vane pumping unit: One independent PV2R4A vane pump integrated in a compact housing with a single 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;
• Single suction port: Single inlet supplies hydraulic fluid to the pumping unit, simplifying system piping;
• Single discharge port: One outlet for precise flow control to hydraulic circuits;
• Cartridge assembly: Internal components (rotor, vanes, cam ring) are assembled as replaceable cartridges for easy maintenance;

2. Working Principle

1. The drive shaft rotates the pump rotor 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. A single flow is delivered through the discharge port, providing precise flow control for hydraulic systems requiring high flow rates in a compact space;

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 (50% smaller than PV2R4) ideal for space-constrained high-flow systems requiring reliable fluid power supply;

6. Summary of Technical Advantages

• High efficiency: Optimized vane design and precision manufacturing minimize internal leakage and maximize volumetric efficiency;
• Space saving: 50% smaller footprint than PV2R4 series, maximizing installation space efficiency in compact machine designs;
• Cost effective: Simplified design and reduced component count lower system costs and maintenance expenses;
• Cost effective: Simplified single pump design with reduced component count lowers system costs and maintenance expenses;
• Maintenance friendly: Cartridge kit design enables quick repair and minimizes downtime;