Parker piston pump pv series

Overview of Parker Variable Displacement Piston Pumps

Main Variable Displacement Piston Pump Series

1. P1/PD Series – Medium Pressure Axial Piston Pumps

• Compact, quiet, and efficient design, ideal for space-constrained installations
• Robust cradle bearing construction enhances stability and service life
• Wide temperature range operation (-40°C to +149°C) for versatile application
• Full power through-drive capability supports multi-pump configurations
• Optional torque limiter available to protect system components from overload
• Flexible displacement adjustment to match varying system flow demands

2. P2/P3 Series – High Pressure Mobile Piston Pumps

• Cost-saving installation design with compact footprint for mobile applications
• High productivity and power density, suitable for heavy-duty mobile work
• Multiple control options for mobile applications, including electro-hydraulic proportional control
• P3 series includes built-in impeller for enhanced self-priming, ideal for high-altitude operations
• Precise displacement adjustment to adapt to changing load requirements
• Durable construction resistant to vibration and harsh mobile environments

3. PVplus Series – High-Efficiency Axial Piston Pumps

• Advanced control options including pressure, remote pressure, and load sensing for precise displacement adjustment
• High efficiency (volumetric efficiency up to 95%, total efficiency up to 90%) and long-term reliability
• Flexible mounting configurations to fit various industrial installations
• Exceptional durability in harsh operating conditions, with resistance to contamination and temperature fluctuations
• Wide displacement range to meet diverse flow and pressure requirements
• Compatible with a variety of hydraulic fluids, including mineral oil-based HLP oil液 meeting DIN 51524 Part 2

• Max Pressure: Up to 350 bar (5,075 psi)
• Displacement: 16-270 cm³/rev (0.98-16.47 in³/rev)
• Speed Range: 300-3,600 RPM
• Control Options: Pressure compensator, load sensing, electro-hydraulic proportional
• Fluid Viscosity Range: 16 to 100 mm²/s (cst) during normal operation; up to 800 mm²/s (cst) for startup

4. PAVC Series – High-Pressure Precision Variable Axial Piston Pumps

• 2-bolt SAE mount/port connection for easy installation and compatibility
• Flange & straight threaded side/rear ports for flexible piping arrangements
• High flow rate capability with precise displacement control
• Multiple control options available, supporting accurate flow regulation
• High-pressure resistance (up to 350 bar) for heavy-duty industrial applications
• Precision-machined components ensure stable performance and low noise

• Displacement Range: 33-100 cm³/rev (2.01-6.10 in³/rev)
• Max Flow Rate: 260 LPM (69 GPM)
• Operating Pressure: Up to 310 bar (4,500 psi) (up to 350 bar for specific models)
• Mounting: SAE standard mounts
• Control Options: Pressure compensator, load sensing, remote control

5. H3/H4/HP2 Series – Closed-Loop Variable Volume Piston Pumps

• Closed-loop circuit capability, ideal for hydraulic systems requiring continuous fluid circulation
• Dual pump configuration for complex hydraulic systems, enabling independent displacement control
• High efficiency and power density, reducing energy consumption
• Advanced control options for precise flow regulation, adapting to dynamic load changes
• Suitable for high-pressure closed-loop applications, with max pressure up to 350 bar
• Bidirectional shaft rotation (clockwise and counter-clockwise) for versatile operation

• Max Pressure: 350 bar (5,075 psi)
• Displacement Range: Multiple options available (dual pump with independent displacement)
• Speed Range: 500-3,000 RPM
• Shaft Rotation: Clockwise and counter-clockwise options
• Control Options: Pressure compensator, load sensing, electro-hydraulic proportional control

Core Control Options for Variable Displacement Pumps

1. Pressure Compensator: Maintains constant system pressure regardless of flow demand, automatically adjusting displacement to avoid pressure fluctuations and protect system components.
2. Load Sensing: Adjusts pump displacement based on real-time system load demand, minimizing energy waste by delivering only the required flow and pressure.
3. Electro-Hydraulic Proportional Control: Enables precise flow and pressure regulation via electrical signals, supporting automated control and integration with PLC systems.
4. Remote Pressure Control: Allows pressure adjustment from a remote location, enhancing operational convenience and flexibility for large-scale or complex hydraulic systems.
5. Torque Limiter: Protects pump and system components from overload by limiting maximum torque, extending service life and reducing maintenance costs.

Material and Construction

• Cast iron pump bodies for excellent durability and resistance to impact and vibration.
• High-grade steel components (pistons, shafts, valves) for superior strength, wear resistance, and long service life.
• Advanced sealing technology to prevent fluid leakage and ensure reliable operation even at high pressures.
• Precision-machined components (including swashplates and cylinder blocks) for optimal hydraulic efficiency and low noise operation.
• Corrosion-resistant coatings and treatments to adapt to harsh working environments (e.g., outdoor, high-humidity, or chemical-exposed applications).

Application-Specific Recommendations

Ordering Information

• Displacement size (customizable within the series range)
• Control type (pressure compensator, load sensing, electro-hydraulic proportional, etc.)
• Mounting configuration (SAE standard mounts, flange mounts, etc.)
• Shaft type (keyed, splined, etc.)
• Seal options for specific fluid compatibility (e.g., high-temperature, chemical-resistant seals)
• Accessories (filters, connectors, control valves, etc.)