TheA11VO190.260 Pump EP2D Control Valveis a high-performance hydraulic control valve produced by Bosch Rexroth, specifically designed for use with A11VO190 or A11VO260 axial piston variable displacement pumps. Below is a detailed introduction:
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I. Product Overview
• Applications: The EP2D control valve is primarily used in hydraulic systems of heavy-duty equipment such as construction machinery, mining machinery, and building machinery. It enables precise control of pump displacement, pressure, and flow to meet dynamic power demands under varying operating conditions.
• Compatible Pump Models: The A11VO190 and A11VO260 are axial piston variable displacement pumps manufactured by Bosch Rexroth, known for their high pressure, large flow capacity, and high efficiency. They are widely applied in hydraulic systems requiring high power density.
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II. Technical Features
• Electro-Hydraulic Proportional Control: The EP2D control valve employs electro-hydraulic proportional control technology, adjusting pump displacement with precision by receiving electrical signals (e.g., PWM signals or current signals) for stepless speed control.
• High Sensitivity: The valve demonstrates high sensitivity, rapidly responding to changes in electrical signals to ensure precise matching between pump output performance and equipment requirements.
• Integrated Design: The EP2D integrates multiple control functions, such as pressure cutoff and flow control, simplifying hydraulic system design while enhancing reliability and efficiency.
• Strong Durability: Constructed with high-quality materials and precision manufacturing processes, the control valve maintains stable performance under harsh operating conditions, extending service life.
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III. Application Examples
• Excavator Hydraulic Systems: In excavators, the EP2D control valve, paired with A11VO190 or A11VO260 pumps, adjusts pump displacement in real-time based on operator handle inputs. This ensures smooth operation during digging, swinging, and traveling while improving fuel efficiency.
• Rotary Drilling Rig Powerheads: The EP2D's high-pressure resistance supports drilling in hard strata for rotary drilling rigs, extending equipment lifespan and enhancing construction efficiency.
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IV. Selection and Usage Considerations
• Model Matching: When selecting, ensure the EP2D control valve model matches the pump model (e.g., A11VO190, A11VO260) for optimal performance and compatibility.
• Performance Requirements: Choose the appropriate control valve model and specifications based on the equipment's specific performance needs (e.g., operating pressure, flow range).
• Installation and Commissioning: Follow the manufacturer's instructions for installation, ensuring correct connection and alignment between the control valve and pump. During commissioning, pay attention to signal wire connections and parameter settings to ensure proper valve operation.
• Maintenance and Care: Regularly inspect the control valve's operating status and performance parameters, promptly replacing worn components and seals. Maintain a clean and dry hydraulic system to prevent contaminants and moisture from entering the control valve.
