PVH141 Series VICKERS Variable Displacement Piston Pump

1. Overview of PVH141 Series

2. Key Features of PVH141 Series

• High Pressure Capability: Continuous operating pressure up to 280 bar (4,060 psi), peak pressure up to 350 bar (5,075 psi) for short-duration heavy load applications
• Large Displacement: Nominal displacement of 141.0 cm³/rev (8.64 in³/rev) for high flow rate requirements (254 L/min at 1800 rpm)
• Advanced Straight-Axis Design: Straight-axis swash plate configuration for high efficiency (up to 96% volumetric efficiency) and low noise operation (64-75 dBA)
• Modular Control Options: Multiple control mechanisms including pressure compensator (RCF), load sensing (RBM), electro-hydraulic proportional (AF), and remote pressure control for maximum application flexibility
• Robust Construction: Heavy-duty cast iron housing, high-load tapered roller bearings, and dual-metal port plate for extended service life (up to 12,000 hours under continuous load)
• Through-Drive Capability: Allows multiple pump configurations (tandem, triple) for complex hydraulic systems requiring multiple independent circuits
• Wide Speed Range: Rated speed of 1800 rpm (full stroke), maximum speed of 2400 rpm (reduced stroke), minimum speed of 600 rpm
• Versatile Fluid Compatibility: Suitable for petroleum-based hydraulic oils (ISO VG 32-68), water-glycol fluids, and biodegradable oils (optional)
• Low Heat Generation: Efficient design minimizes heat production, reducing cooling system requirements and improving overall system efficiency
• Compact Design: High power density with a lightweight aluminum housing option for mobile applications
• Easy Maintenance: Modular construction allows for quick replacement of wear parts, minimizing downtime for industrial operations

3. Model Coding System for PVH141 Series

• PVH141: Series identifier (141 cm³/rev variable piston pump)
• R: SAE C 4-bolt flange mounting type
• 13: Advanced control package group
• AF: Electro-hydraulic proportional control for precise flow regulation
• 30: Standard 1 1/4″ shaft with 5/16″ key
• B25200: Standard design variation
• AE01: Pressure and torque limiting option for system protection

3. Technical Parameters of PVH141 Series

4. Control Options for PVH141 Series

4.1 Pressure Compensator Control (RCF)

• Maintains constant pressure regardless of flow demand
• Automatically reduces displacement when system pressure reaches setpoint
• Ideal for applications with variable flow requirements and fixed pressure needs
• Adjustable pressure setting range: 70-280 bar (1,015-4,060 psi)

4.2 Load Sensing Control (RBM)

• Adjusts pump displacement based on actual system load requirements
• Minimizes energy consumption by only providing necessary flow and pressure
• Reduces heat generation and extends component life
• Compatible with proportional valves and complex control systems

4.3 Electro-Hydraulic Proportional Control (AF)

• Provides precise electronic control of pump displacement
• Accepts 0-10V or 4-20mA input signals for remote operation
• Enables integration with PLC and computer control systems
• Ideal for applications requiring automated process control and data monitoring

4.4 Pressure and Torque Limiting Control (AE)

• Protects system components from overpressure and excessive torque
• Automatically reduces displacement when pressure or torque limits are reached
• Prevents damage to pumps, motors, and other hydraulic components
• Adjustable setting range for both pressure and torque limits

5. Application Fields of PVH141 Series

• Construction Machinery: Large excavators, wheel loaders, mobile cranes, and road rollers requiring high flow and pressure for heavy lifting and digging operations
• Industrial Machinery: Injection molding machines (clamping and injection units), hydraulic presses, and metal forming equipment
• Material Handling: Container handlers, reach stackers, and heavy-duty forklifts for port and logistics applications
• Metallurgical Equipment: Rolling mills, continuous casting machines, and forging presses for heavy metal processing
• Mining Machinery: Underground loaders, haul trucks, and drilling rigs operating in harsh environments
• Agricultural Machinery: Large tractors, combine harvesters, and irrigation systems requiring high power hydraulic capabilities
• Marine Applications: Ship deck cranes, winches, and steering systems for commercial and military vessels
• Energy Sector: Wind turbine pitch and yaw control systems, hydroelectric dam control mechanisms

6. Installation and Maintenance Considerations

• Mounting Requirements: Ensure proper alignment with prime mover (electric motor or engine) to reduce vibration and extend bearing life. Use SAE standard mounting flanges and torque specifications (103-127 N.m for mounting bolts)
• Piping Recommendations: Use appropriate size hoses and pipes to minimize pressure drop. Install suction strainer (100 μm) and return line filter (10 μm) for optimal oil cleanliness
• Fluid Selection: Use petroleum-based hydraulic oil with ISO VG 32-68 viscosity grade. Maintain oil temperature between 40-60°C for best performance
• Start-up Procedures: Fill pump with clean hydraulic oil before initial start-up. Prime suction line and bleed air from system to prevent cavitation
• Regular Maintenance:
  • Replace oil and filters every 2,000 operating hours or 6 months (whichever comes first)
  • Check for leaks, abnormal noise, and vibration during operation
  • Monitor oil temperature, pressure, and cleanliness regularly
  • Inspect control components and electrical connections for wear or damage
• Service Intervals: Major overhaul recommended at 8,000-12,000 operating hours depending on operating conditions
• Replacement Parts: Use only genuine VICKERS/Eaton replacement parts to maintain performance and reliability. Non-genuine parts may cause reduced efficiency and premature failure
• Safety Precautions: Always relieve system pressure before performing maintenance. Follow lockout/tagout procedures to prevent accidental start-up

7. Comparison with Similar Products

8. Troubleshooting Guide