A2VK28MAGR1G0PE1-SO2 A2VK28MAGR1G0PE2-SO2 A2VK12MAGR4G1PE2-SO2 Axial variable displacement piston pump A2VK12 28 series flow hydraulic pump manufactured by Rexroth in Germany

The Rexroth A2VK series axial piston variable metering pumps are high-performance hydraulic products designed for precision metering applications. This release includes three models: A2VK28MAGR1G0PE1-SO2 (28 mL/r), A2VK28MAGR1G0PE2-SO2 (28 mL/r), and A2VK12MAGR4G1PE2-SO2 (12 mL/r). These pumps feature manual control with handwheel adjustment, offering reliable performance for industrial mixing systems, chemical metering, and hydraulic applications where accurate flow control is essential.

• Accurate flow control: Handwheel with scale for precise flow setting
• Repeatable operation: Consistent performance across flow range
• Low pulsation: Optimized design for smooth output

• Durable components: Wear-resistant materials for long service life
• Robust sealing: Multiple sealing points ensure leak-free operation
• Compact design: Suitable for space-constrained installations

• Multiple port options: Different port configurations for various system layouts
• Standard mounting: SAE flange interface for easy installation
• Service-friendly: Modular design simplifies maintenance

• Multiple displacement options: 12 mL/r and 28 mL/r models available
• Media compatibility: Suitable for hydraulic oils and compatible fluids
• Pressure capability: Rated for 250 bar continuous operation

• 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

• Mounting position: Any position, handwheel horizontal recommended
• Coupling alignment: Shaft alignment error ≤0.1mm
• Inlet line: Minimum 10mm inner diameter recommended
• Drain line: Separate connection to tank, back pressure ≤0.2 MPa

• 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

• Chemical metering and batching systems
• Mixing equipment for various industries
• Precision fluid transfer applications

• Industrial machinery hydraulic power units
• Multiple actuator control systems
• Medium-flow hydraulic applications

• Polyurethane foaming equipment
• High-viscosity fluid metering
• Systems requiring precise flow control

The primary differences are displacement (28 mL/r vs 12 mL/r) and port configurations (G0PE1, G0PE2, G1PE2). The two 28 mL/r models deliver higher flow capacity than the 12 mL/r model. Port differences affect connection types and system integration options. Select based on your flow requirements and system layout.

Selection depends on your system's flow requirements. Calculate the required flow rate based on your application needs (actuator speed, cylinder size, etc.). The 12 mL/r model is suitable for low-flow applications, while the 28 mL/r models are for medium-flow systems. Also consider motor power and piping requirements when selecting.

For 12 mL/r model at 250 bar, approximately 5-7 kW motor is typical. For 28 mL/r models, 10-15 kW is recommended. Actual power depends on operating pressure and flow rate. Calculate based on your specific parameters and add a safety margin.

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. For first 100 hours of operation, check for any unusual signs and consider oil change after initial run-in period.

Standard models are designed for mineral-based hydraulic oils. For water-based fluids (HFA, HFB, HFC), special materials and seals may be required. Consult with technical support before using with non-standard media, as compatibility depends on specific fluid properties and operating conditions.

• 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

For ordering or technical specifications, contact your local Rexroth authorized distributor or sales representative. Provide complete model number, quantity, and delivery requirements.