VDC-1A-1A3,VDC-1B-1A3 Vane pump
VDC Series:VDC-1A/B; VDC-2A/B; VDC-3A/B
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Nachi VDC-1A-1A3 & VDC-1B-1A3 Vane Pump Specifications | High-Pressure Variable Displacement
General Specifications (VDC-1A-1A3 & VDC-1B-1A3)
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Parameter Name
|
VDC-1A-1A3
|
VDC-1B-1A3
|
Unit
|
|
Displacement
|
18.5
|
18.5
|
cm³/rev
|
|
No-Load Discharge Rate (1000 min⁻¹)
|
18.5
|
18.5
|
ℓ/min
|
|
No-Load Discharge Rate (1200 min⁻¹)
|
22.2
|
22.2
|
ℓ/min
|
|
No-Load Discharge Rate (1500 min⁻¹)
|
27.8
|
27.8
|
ℓ/min
|
|
No-Load Discharge Rate (1800 min⁻¹)
|
33.3
|
33.3
|
ℓ/min
|
|
Pressure Adjustment Range
|
8 – 16 (81.6 – 163.3 kgf/cm²)
|
8 – 16 (81.6 – 163.3 kgf/cm²)
|
MPa
|
|
Allowable Peak Pressure
|
16 (163.3 kgf/cm²)
|
16 (163.3 kgf/cm²)
|
MPa
|
|
Minimum Revolution Speed
|
800
|
800
|
min⁻¹ (rpm)
|
|
Maximum Revolution Speed
|
1800
|
1800
|
min⁻¹ (rpm)
|
|
Weight
|
10.2
|
10.2
|
kg
|
|
Mounting Type
|
Flange Mounting (Optional Foot Mounting)
|
Flange Mounting (Optional Foot Mounting)
|
–
|
|
Operating Fluid
|
ISO VG 32 – 68 (Viscosity Index ≥ 90)
|
ISO VG 32 – 68 (Viscosity Index ≥ 90)
|
–
|
|
Rotation Direction
|
Clockwise (Viewed from Shaft Side)
|
Clockwise (Viewed from Shaft Side)
|
–
|
Key Performance Features of Nachi VDC-1A-1A3 & VDC-1B-1A3 Vane Pumps
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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.
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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.
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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.
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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.
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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.
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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
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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.
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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.
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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.
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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.
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Ensure proper mounting alignment to prevent vibration and premature wear, and check for leaks regularly to maintain system efficiency and safety.
VDC series Nachi vane pump
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Process steps：
Customer inquiry: Customers will make inquiries before placing an order to understand product details and communication needs.
Quotation: According to customer needs, provide a formal quotation, including the name, model, quantity, delivery time, payment method, etc. of the goods.
Order confirmation: After the customer confirms the quotation, a formal purchase order will be placed.
Confirm the delivery time: communicate the delivery time with the production department, inform the factory of the order details, and arrange the production plan.
Sign an export contract: After the two parties confirm that it is correct, sign an export contract to establish a trade relationship.
Implement the letter of credit (if applicable): If the payment method of the letter of credit is used, the customer needs to be urged to issue the certificate and review the contents of the letter of credit.
Export stocking: According to the requirements of the contract and the letter of credit, arrange production, purchase raw materials and packaging, and prepare the goods.
Chartering and booking: Contact the freight forwarder to make a booking and arrange the transportation of goods.
Export inspection: Apply to the quality inspection department for export commodity inspection and provide relevant documents.
Apply for a write-off slip: apply for a write-off slip from the foreign exchange management department for subsequent foreign exchange write-off.
Export declaration: Declare exports to the customs and provide documents such as power of attorney for customs declaration, customs declaration form for export goods, commercial invoice, packing list, etc.
