Sauer Series:
PV20; PV21 (PVD21); PV22; PVD22 dual pump; PV23 (PVD23); PV24; SPV6 / 119;
PV25; PV26; PV112; OPV27; MF16A; MFO35; MF500; MPVO46 /
M46; MPR63; MPV45.
Sauer Sunstrand Hydraulic Motor.
90K 55, 90K 75.
90M 55, 90M 75, 90M 100, 90M 130.
MF 20, MF 21, MF 22, MF 23, MF 24, MF 25, MF 26, MF 27.
SMF 20, SMF 21, SMF 22, SMF 23, SMF 24, SMF 25, SMF 26, SMF 27.
H1 060, H1 080, H1 110, H1 160, H1 210, H1 250.
H1B 060, H1B 080, H1B 110, H1B 160, H1B 210, H1B 250.
T90 Series 055, 075, 100
T90 (M) Series 055 MF, 075 MF, 100 MF.
Series 90 030 MF, 042 MF, 055 MF, 075 MF, 100 MF, 130 MF.
Series 90 055 MV, 075 MV.
Series 20 (frame size) 070, 089, 227, 334.
Series 51 / 51V (frame size) 060, 080, 110, 160, 250.
PVB/PVQ SERIES Hydraulic Piston Pump
1. Product Overview
• Brand & Model: The PVB/PVQ series hydraulic piston pumps are manufactured byEaton Vickers(now part of Eaton's Hydraulics Group), a global leader in fluid power solutions. These pumps are designed for high-performance industrial and mobile applications.
• Type: Swashplate-type axial piston variable displacement pumps, available in open or closed-loop configurations.
• Applications:
• Mobile Machinery: Excavators, wheel loaders, agricultural tractors, and forestry equipment.
• Industrial Systems: Plastic injection molding machines, metal forming presses, and machine tools.
• Marine & Offshore: Winches, steering systems, and deck machinery.
2. Technical Parameters & Features
• Displacement Range:
• The PVB/PVQ series offers a wide range of displacements (e.g., 16 cc/rev to 237 cc/rev for PVB, 19 cc/rev to 250 cc/rev for PVQ), allowing customization for specific flow requirements.
• Pressure Rating:
• Maximum operating pressure up to350 bar (5075 psi), with some models supporting420 bar (6090 psi)for heavy-duty applications.
• Control Methods:
• Pressure-Compensated Control: Automatically adjusts displacement to maintain a constant system pressure, improving efficiency.
• Load-Sensing Control: Dynamically regulates flow based on load demand, reducing energy waste.
• Electro-Hydraulic Control: Enables precise displacement adjustment via electrical signals for automated systems.
• Remote Displacement Control (RDC): Allows external adjustment of pump displacement via mechanical or hydraulic means.
• Speed Range:
• Typical operating speed:600~3000 rpm(varies by model and application).
• Efficiency:
• High volumetric efficiency (>95%) and mechanical efficiency (>90%), minimizing energy losses and heat generation.
3. Structure & Design
• Swashplate-Type Axial Piston Design:
• Pistons are arranged axially, with displacement adjusted via swashplate angle changes, offering a compact and responsive structure.
• Modular Design:
• Optional control modules (e.g., pressure compensation valves, load-sensing valves, electro-hydraulic control valves) for flexible configuration.
• Sealing & Durability:
• Advanced sealing technology and wear-resistant materials extend service life and reduce leakage.
• Cooling & Lubrication:
• Built-in lubrication circuit ensures adequate lubrication and cooling for critical components such as pistons and swashplates.
4. Performance Advantages
• High Energy Efficiency:
• Load-sensing and electro-hydraulic control technologies minimize overflow losses, reducing energy consumption and operating costs.
• Fast Dynamic Response:
• Rapidly adjusts displacement to adapt to load changes, improving system responsiveness and productivity.
• High Reliability:
• Eaton Vickers' quality assurance ensures durability in harsh operating conditions, reducing downtime and maintenance costs.
• Easy Maintenance:
• Modular design facilitates repairs and component replacement, reducing repair time and costs.
5. Application Examples
• Case 1: Hydraulic System for Excavators
• Requirements: Excavators require high-power, high-efficiency hydraulic systems to support arm, bucket, and rotation movements.
• Solution: The PVB/PVQ series pump, with load-sensing control, achieves precise flow distribution, reducing energy consumption and improving operational efficiency.
• Case 2: Hydraulic System for Plastic Injection Molding Machines
• Requirements: Injection molding machines demand rapid response and stable pressure output to ensure molding quality.
• Solution: The PVB/PVQ series pump, with pressure-compensated control, maintains constant system pressure, ensuring the stability of the injection molding process.
6. Selection & Configuration Recommendations
• Displacement Selection:
• Choose an appropriate displacement model (e.g., PVB16, PVQ25) based on system flow requirements.
• Control Method:
• For automated control, consider electro-hydraulic control or load-sensing control modules.
• Accessory Configuration:
• Optional pressure sensors, flow sensors, and other accessories enable more precise system monitoring.
7. Maintenance & Upkeep
• Regular Inspections:
• Check oil cleanliness and regularly replace hydraulic oil and filters.
• Inspect pump connections for looseness or leakage.
• Troubleshooting:
• If excessive pump noise occurs, check pistons and swashplates for wear.
• If insufficient output flow is observed, inspect the pump interior for blockages or damaged seals.
8. Summary
The PVB/PVQ series hydraulic piston pumps are high-performance, reliable axial piston variable displacement pumps suitable for hydraulic systems requiring high power and efficiency. Their modular design and diverse control methods enable flexible adaptation to various application scenarios. Through proper selection and maintenance, the PVB/PVQ series pumps can operate reliably over the long term, providing users with dependable hydraulic power support.
New or Reusable Spares of Hydraulic Motors like Shaft, Rotor, Cylinder Block, Pistons, Piston Rings, Pressure Plate, Swash Plate,
Ball Guide, Bearings, Retainer Plate, Springs, Distributor, Covers, Control Valve, Seal Kits and others can be supplied.
