Control Valve HA2R2 for A6VM-A6VE Series Pump/Motor

3 month ago

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4 year

Product details

1. Product Overview

TheControl Valve HA2R2is a hydraulic control valve specifically designed for theA6VM-A6VE Series variable-displacement pumps/motors, used to regulate displacement, pressure, or flow rate for precise system control. The A6VM-A6VE Series are axial-piston variable pumps/motors, widely applied in construction machinery, industrial equipment, and mobile hydraulic systems.

2. Core Functions

• Displacement Control: Adjusts the swashplate angle of the pump to vary piston stroke, controlling output flow.

• Pressure Compensation: Maintains stable system pressure to prevent overloads or fluctuations.

• Directional Control: Some models may integrate directional switching to manage hydraulic oil flow.

• Load-Sensing Control: Automatically adjusts pump output based on load demand, improving energy efficiency.

3. Technical Features

• High-Precision Control: Utilizes proportional solenoids or servo valve technology for fine displacement adjustments.

• Fast Response: Rapidly reacts to system commands, suitable for dynamic load conditions.

• Strong Contamination Resistance: Optimized spool design minimizes performance degradation from oil contamination.

• Integrated Design: May combine pressure cutoff, charge pump, and damping functions to simplify system architecture.

4. Applications

• Construction Machinery: Hydraulic systems in excavators, loaders, and cranes.

• Industrial Equipment: Hydraulic drives for injection molding machines, die-casting machines, and machine tools.

• Mobile Hydraulics: Agricultural machinery, mining equipment, and marine deck machinery.

5. Key Specifications (Example)

【表格】

Parameter Typical Value/Range Description

Rated Pressure 350 bar (5,075 psi) Maximum operating pressure

Flow Range 10–200 L/min Depends on pump model

Control Method Hydraulic/Electro-hydraulic proportional Manual, electric, or remote control

Operating Temperature -20°C to +80°C Suitable for harsh environments

Port Size G1/2 or SAE 10 Hydraulic interface standard

6. Selection Considerations

• Pump Model Compatibility: Ensure HA2R2 matches specific A6VM-A6VE variants (e.g., A6VM55, A6VE160).

• Control Method: Choose hydraulic, electro-hydraulic proportional, or integrated electronic control (e.g., CAN bus).

• Environmental Adaptability: Select special materials or seals for high-temperature, low-temperature, or corrosive environments.

7. Maintenance & Troubleshooting

• Regular Inspections: Check oil cleanliness, spool sticking, and seal degradation.

• Common Faults:

• Unstable Flow: Caused by spool wear or oil contamination.

• Insufficient Pressure: Check charge pressure or internal leakage.

• Slow Response: Faulty solenoid or control signal issues.

8. Alternative Models & Upgrades

• Some manufacturers offer upgraded versions (e.g., HA2R2-E) with advanced electronic control or diagnostics.

• Verify OEM parts or compatible models to avoid performance mismatches.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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Main Product: hydraulic motor, gear box, hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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