VDC-22A(B)-2A3-1A*20/35 Nachi Double vane Pump

Model Interpretation

• VDC: Series name, representing Nachi high-pressure variable displacement vane pump, widely used in industrial high-pressure hydraulic systems.
• 22: Double pump identifier, indicating that the product is a twin (double) vane pump, integrating two independent vane pump units with optimized heavy-duty structure, which has higher flow stability, pressure-bearing capacity and load resistance compared with the VDC-12 series double vane pump, suitable for heavy-duty industrial scenarios.
• A/B: Mounting method (A: Foot type mounting, sub plate type, sub plate not included; B: Flange mounting optional, suitable for different installation space and heavy-duty application scenarios).
• 2: Pump size, indicating the basic structural size of each single vane pump unit in the double pump (matched with the VDC-2 series single pump size, optimized for high flow output and heavy-duty operation).
• A: Ring size, corresponding to the matching size of the pump ring, ensuring stable operation and pressure resistance of the pump under high-pressure and high-flow working conditions.
• 3: Pressure adjustment range, corresponding to the high-pressure regulation specification for the VDC-22 series double vane pump, suitable for medium and high-pressure hydraulic system requirements.
• 1A: Flow characteristics, meaning constant discharge type for dual pump units, ensuring stable and consistent flow output of each independent pump unit, perfectly matching the working demand of dual-path hydraulic systems that require independent operation and stable power supply.
• *20/35: Design and matching code, 20 represents the basic design number of the pump, 35 represents the matching specification of the pressure control component, ensuring the pump’s pressure stability and control precision under high-flow and high-pressure conditions.

Detailed Technical Parameters

Key Features

• Dual-Path Independent Hydraulic Output: Integrates two independent vane pump units with optimized heavy-duty structure, providing stable dual-path hydraulic power output that can be used independently or in combination. The constant discharge type (1A) ensures stable flow output of each unit, perfectly adapting to the working demand of dual-path hydraulic systems that require independent operation, and saving installation space compared with two single pumps, suitable for heavy-duty scenarios.
• High Pressure Stability & High-Flow Adaptability: With allowable peak pressure up to 3000 psi (214.3 kgf/cm²) and pressure adjustment range of 290-1800 psi, equipped with high-precision pressure control components (matching code 35), pressure control precision reaches ±0.3MPa, pressure fluctuation ≤0.1MPa. Optimized pump size and heavy-duty structure enhance high-flow adaptability and load resistance, suitable for medium and high-pressure heavy-duty systems with high flow demand.
• Stable & Quiet Operation: Adopts 3-point ring support system and optimized structural design, combined with precision machining and noise reduction technology, operation noise is ≤55dB (1m distance), minimizing vibration and noise, suitable for precision machinery, heavy-duty equipment and indoor working scenarios.
• High Efficiency & Durability: Innovative mechanical design reduces power loss and improves overall system efficiency; high-strength reinforced cast iron material (enhanced for high-flow, high-pressure and heavy-duty working conditions) enhances pressure-bearing capacity and wear resistance, ensuring long service life even under long-term continuous operation of double pump units in heavy-duty scenarios.
• Easy Installation & Maintenance: Compact integrated heavy-duty structure, foot/flange optional mounting methods, adapting to different installation spaces and heavy-duty mounting requirements; pressure and flow adjustment mechanisms of the two pump units are concentrated on the same side, simplifying maintenance and handling, reducing equipment downtime.
• Strong Adaptability: Wide shaft speed range (800-1800 min⁻¹), suitable for different power matching requirements of heavy-duty equipment; constant discharge type design ensures stable and consistent flow output of each pump unit, adapting to various industrial hydraulic system scenarios that require dual-path independent power supply for heavy-duty operation.

Application Scope