EATON VICKERS Variable Displacement Piston Pump PVXS-066-C-M-R-DF-0000 Specification

1. Product Overview

2. Model Explanation

• PVXS: Series identifier, representing open-loop variable displacement axial piston pumps
• 066: Displacement code, indicating a theoretical displacement of 66 cm³/rev (4.0 in³/rev)
• C: Mounting configuration, standard SAE 4-bolt mounting
• M: Control mode prefix, matching the subsequent DF control
• R: Rotation direction, clockwise rotation when viewing the shaft end (counterclockwise available on request)
• DF: Displacement control type, pressure compensator controlled
• 0000: Standard configuration, no additional optional features

3. Technical Specifications

4. Structural Features

• Swash Plate Design: Adopts a precision swash plate structure, ensuring reliable operation, low noise, and long service life. The optimized swash plate angle adjustment mechanism enables smooth and accurate flow control.
• Pressure Balance Design: Rotating and pressure-loaded components are pressure-balanced, reducing wear and improving overall efficiency, while minimizing the impact of high pressure on the pump structure.
• Oversized Shaft and Bearings: Equipped with oversized shafts and high-strength bearings, enhancing the pump’s load-bearing capacity and resistance to fatigue, suitable for long-term continuous operation.
• Integrated Control Options: The DF pressure compensator control ensures that the pump automatically adjusts displacement according to system pressure demands, optimizing energy consumption and system performance. Integrated pilot pump, filter, and pressure relief valves are available as optional configurations.
• Modular “Building Block” Design: The modular structure allows for flexible configuration combinations, adapting to different application requirements and facilitating maintenance and replacement of components.

5. Applications

• Metal forming machinery (e.g., stamping machines, forging presses)
• Tube bending and processing equipment
• Industrial presses and hydraulic power units
• Marine and offshore winches and hydraulic systems
• Chemical mixing, grinding, and shredding equipment
• Mining and construction machinery hydraulic systems

6. Installation Notes

• Mounting: Follow SAE 4-bolt mounting specifications, ensure the mounting surface is flat and clean, and tighten the bolts evenly to avoid vibration during operation.
• Shaft Connection: Ensure accurate alignment between the pump shaft and the drive motor shaft to prevent eccentricity, which may cause bearing damage and oil leakage.
• Fluid Filling: Before starting the pump, fill the pump cavity with clean hydraulic oil to prevent dry friction and damage to internal components.
• Filter Requirements: Install a high-quality oil filter at the inlet to ensure the cleanliness of the hydraulic oil, which is crucial for extending the pump’s service life.
• Temperature Range: Operate within the recommended temperature range ( -20°C to 80°C) to avoid performance degradation or component damage due to extreme temperatures.

7. Brand and Certification

• Brand: EATON VICKERS
• Origin: USA
• Certification: ISO 9001
• Warranty: 1 year (subject to EATON VICKERS’ official warranty terms)