Rexroth A2VK Series Metering Pumps
A2VK28MAOR1G0PE2-SO2 | A2VK55MAGR1G1PE2-SO2 | A2VK107MAGR1G1PE1-SO2
Product Overview
The Rexroth A2VK series axial piston variable metering pumps are high-performance hydraulic products designed for precision metering applications. This release includes three models with manual handwheel control for reliable performance in industrial mixing systems, chemical metering, and hydraulic applications requiring accurate flow control.
Product Model Comparison
| Parameter |
A2VK28MAOR1G0PE2-SO2 |
A2VK55MAGR1G1PE2-SO2 |
A2VK107MAGR1G1PE1-SO2 |
| Series |
A2VK |
A2VK |
A2VK |
| Theoretical Displacement |
28 mL/r |
55 mL/r |
107 mL/r |
| Rotation Direction |
Right-hand |
Right-hand |
Right-hand |
| Control Type |
Manual (handwheel) |
Manual (handwheel) |
Manual (handwheel) |
| Rated Pressure |
250 bar |
250 bar |
250 bar |
| Peak Pressure |
315 bar |
315 bar |
315 bar |
| Port Configuration |
G0PE2 |
G1PE2 |
G1PE1 |
| Seal Material |
NBR/FKM optional |
NBR/FKM optional |
NBR/FKM optional |
| Suitable Media |
Hydraulic oil, compatible fluids |
Hydraulic oil, compatible fluids |
Hydraulic oil, compatible fluids |
| Typical Speed |
735-1800 rpm |
735-1800 rpm |
600-1500 rpm |
Key Features
Precise Metering Performance
- Handwheel with scale for precise flow setting
- Consistent performance across flow range
- Optimized design for smooth, low-pulsation output
Reliable Construction
- Wear-resistant materials for long service life
- Multiple sealing points ensure leak-free operation
- Heavy-duty design suitable for continuous industrial use
Flexible Integration
- Multiple port configurations for various system layouts
- SAE flange interface for easy installation
- Modular design simplifies maintenance
Wide Application Range
- 28 mL/r, 55 mL/r, and 107 mL/r models available
- Suitable for hydraulic oils and compatible fluids
- Rated for 250 bar continuous operation
Technical Specifications
Basic Performance
- Working pressure: Rated 250 bar, peak 315 bar (short-term)
- Displacement range: 0 to maximum displacement continuously adjustable
- Volumetric efficiency: ≥95% (rated condition)
- Overall efficiency: ≥90% (rated condition)
- Allowable inlet pressure: 0.1-0.3 MPa for open circuit
Installation Requirements
- Mounting position: Any position, handwheel horizontal recommended
- Coupling alignment: Shaft alignment error ≤0.1mm
- Inlet line: Minimum 10mm (28 mL/r), 12mm (55 mL/r), or 16mm (107 mL/r) inner diameter
- Drain line: Separate connection to tank, back pressure ≤0.2 MPa
Operating Conditions
- Hydraulic oil: ISO VG 46 or VG 68 recommended
- Filtration: 10-20μm at inlet
- Oil temperature: Normal 15-60°C, maximum 80°C
- First start: Pre-fill pump with oil before operation
Application Areas
Industrial Processing
- Chemical metering and batching systems
- Mixing equipment for various industries
- Precision fluid transfer applications
Hydraulic Systems
- Industrial machinery hydraulic power units
- Multiple actuator control systems
- Medium to high-flow hydraulic applications
Special Applications
- Polyurethane foaming equipment
- High-viscosity fluid metering
- Systems requiring precise flow control
Frequently Asked Questions
What are the main differences between these three models?
The primary differences are displacement (28 mL/r, 55 mL/r, and 107 mL/r) and port configurations (G0PE2, G1PE2, G1PE1). Displacement determines flow capacity, with 107 mL/r delivering the highest flow. Port differences affect connection types and system integration options.
How do I choose the right displacement model?
Selection depends on your system's flow requirements. Calculate the required flow rate based on your application needs. The 28 mL/r model is suitable for low to medium flow, 55 mL/r for medium flow, and 107 mL/r for high-flow applications.
What motor power is recommended for these pumps?
For 28 mL/r model at 250 bar, approximately 10-15 kW motor is typical. For 55 mL/r model, 15-20 kW is recommended. For 107 mL/r model, 30-40 kW is required. Actual power depends on operating pressure and flow rate.
What maintenance is required for these pumps?
Regular maintenance includes checking oil level and quality, inspecting for leaks, monitoring pump noise and temperature. Check and replace filters regularly. Inspect coupling alignment periodically.
Can these pumps operate at variable speeds?
Yes, within the specified speed range (28 mL/r and 55 mL/r: 735-1800 rpm, 107 mL/r: 600-1500 rpm). Avoid operating below minimum speed as it may cause insufficient lubrication. Do not exceed maximum speed to prevent cavitation and mechanical stress.
After-sales Service & Technical Support
- Warranty period: 12 months from date of shipment
- Technical support: Application consultation and troubleshooting
- Spare parts: Available through authorized distributors
- Repair service: Authorized service network
Ordering Information
For ordering or technical specifications, contact your local Rexroth authorized distributor or sales representative. Provide complete model number, quantity, and delivery requirements.
Product information based on manufacturer data. Specifications subject to change. Confirm product suitability for your application before use. Release Date: January 2026 Publisher: Rexroth
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