Nachi VDC-1A-1A3 & VDC-1B-1A3 Vane Pump Specifications | High-Pressure Variable Displacement

General Specifications (VDC-1A-1A3 & VDC-1B-1A3)

Key Performance Features of Nachi VDC-1A-1A3 & VDC-1B-1A3 Vane Pumps

• Enhanced High-Pressure Performance: Equipped with upgraded pressure control and balance mechanisms, along with Nachi’s original 3-point ring support system, ensuring stable and efficient operation at peak pressures up to 16 MPa—ideal for heavy-duty hydraulic applications.
• Low Noise & Vibration: Adopts advanced 3-point support for control and bias pistons, minimizing ring vibration and reducing operating noise, making it suitable for industrial environments with strict noise requirements, such as precision manufacturing facilities.
• Precise Discharge Rate Control: Features a revolutionary pressure compensator-type control mechanism, maintaining a highly stable fixed discharge rate even in the high-pressure range, ensuring consistent performance for critical hydraulic processes.
• Energy Efficiency & Reduced Power Loss: New mechanical optimizations reduce power loss, especially during full cutoff, lowering energy consumption and operational costs while improving overall system efficiency.
• Easy Maintenance & Operation: Pressure and discharge rate adjustment mechanisms are conveniently located on the same side of the pump, simplifying routine maintenance, calibration, and daily operation for maintenance teams.
• Superior Response & Durability: An innovative ring stopper eliminates excessive ring displacement, ensuring high-precision operation during starts, stops, and load changes, while high-quality materials extend the pump’s service life in harsh industrial conditions.

Application Scope of Nachi VDC-1A-1A3 & VDC-1B-1A3

Operating Notes for Nachi VDC-1A-1A3 & VDC-1B-1A3

• The operating fluid must comply with ISO VG 32-68 standards with a viscosity index of 90 or higher to ensure optimal pump performance, prevent wear, and extend service life.
• Do not exceed the maximum revolution speed (1800 rpm) or allowable peak pressure (16 MPa), as this may cause damage to internal components and affect pump reliability.
• Regular maintenance is recommended to inspect the pump’s pressure, discharge rate, and fluid quality, including oil changes and filter replacements, to ensure long-term stable operation.
• When starting the motor under low-temperature conditions, preheat the operating fluid to 10°C or higher to avoid excessive load on the pump and ensure smooth startup.
• Ensure proper mounting alignment to prevent vibration and premature wear, and check for leaks regularly to maintain system efficiency and safety.