A10VSO71 pump

First, Core Parameters and Characteristics of the A10VSO 71 Pump

The A10VSO 71 pump is a swashplate-type axial piston variable displacement pump from the Rexroth brand, specifically designed for open hydraulic circuits. It features the following core parameters and characteristics:

1. Displacement and Flow Rate:

Displacement is 71 cm³/rev. Flow rate is proportional to both drive speed and displacement, enabling stepless variable control by adjusting the swashplate angle.

At rated speed of 2000 rpm, maximum flow reaches 156 L/min (some sources indicate 142 L/min, depending on speed and displacement settings), suitable for applications requiring medium flow rates.

2. Pressure Capability:

Rated pressure is 280 bar, with a peak pressure of 350 bar, suitable for high-pressure hydraulic systems.

Equipped with a constant pressure control valve (e.g., DR valve), it adjusts approximately 50 bar per revolution, enabling precise system pressure setting.

Second, How to Optimize A10VS 71 Pump Performance

1. Maintenance

Regularly inspect and replace components: Periodically check valve seats, valve plates, reset springs, and seals, replacing any damaged parts promptly. Use high-quality valve seat components and assemble correctly to prevent performance issues from improper installation. Repair pump head cracks immediately upon detection.

Maintain fluid cleanliness: Regularly clean the inlet filter cylinder and inspect the filter screen. After pipeline construction at the pump inlet/outlet, flush the lines before starting the pump to prevent contaminants like welding slag from entering and damaging internal components.

2. Control Parameter Adjustment

Pressure Regulation: Adjust pump pressure according to actual operating conditions. For pumps using DFR1 control mode, loosen the coarse adjustment valve nut and tighten the pressure adjustment screw. If on-site pressure is insufficient, tighten fully; otherwise, set to the pressure level required by the equipment.

Displacement and Flow Rate Settings: The A10VSO 71 pump adjusts displacement and flow rate by altering the swashplate angle. Properly set displacement and flow rate to match pump output with load demand, preventing energy waste and improving efficiency.

3. Operating Environment Management

Stabilize Liquid Level: Address high/low liquid level issues by implementing stabilization measures. For example, injection stations at pipeline ends may install backup tanks with automatic control valves between them.

Monitor Incoming Liquid Quality: When dry powder remains constant, reducing the concentration and viscosity of the conveyed liquid helps improve pump efficiency.

4. Equipment Condition Monitoring

Regular Pump Inspections: Examine key pump components like plunger wear and distributor seal integrity. Check lubricant condition and replace if degraded. Ensure proper component installation to prevent efficiency loss from increased friction.

Operational Data Monitoring: Track pump parameters including pressure, flow rate, temperature, and noise levels. Promptly investigate and address anomalies to prevent escalating faults that degrade performance.

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