VDR-1A-1A2-22 NACHI Variable Volume Vane Pump
VDR Series: VDR-1A、VDR-2A、VDR-1B、VDR-2B
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Parameters of NACHI Variable Displacement Vane Pump VDR-1A-1A2-22
1. Basic Information
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Model: VDR-1A-1A2-22
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Product Type: Variable Displacement Single Vane Pump
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Series: VDR 22 Design Series
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Mounting Method: Foot Type Mount (Code “A”)
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Design Number: 22
2. Technical Parameters
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Displacement: 16.7 cc/rev
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No-Load Discharge Flow: 30 L/min (7.9 gpm) at 1800 min⁻¹; 25 L/min at 1500 min⁻¹; 20 L/min at 1200 min⁻¹; 16.7 L/min at 1000 min⁻¹
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Pressure Adjustment Range: 1.5 – 3.5 MPa (15.3 – 35.7 kgf/cm²; 217 – 507 psi)
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Allowable Peak Pressure: 14 MPa (143 kgf/cm²; 2030 psi)
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Rotational Speed Range: Minimum 800 min⁻¹, Maximum 1800 min⁻¹
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Weight: 9 kg (19.9 lb) (Foot Mounting Type)
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Flow Characteristics: Constant Discharge Rate Type (Code “A”)
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Ring Size: Code “1”
3. Performance Characteristics
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Stable and efficient operation up to 14 MPa, with minimal ring vibration and leak-free pressure balance construction.
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High-precision instantaneous response, ensured by a special bias piston mechanism for prompt on-off operation.
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Silent operation even in high-pressure ranges, thanks to quiet journal bearings and optimized suction/discharge port design.
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Reduced power loss, especially at full cutoff, via NACHI original mechanical innovations and precision machining.
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Durable construction with high-quality materials, suitable for harsh operating conditions.
4. Notes
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When the ring size is Code “2”, the maximum setting pressure is 7 MPa (71.4 kgf/cm²; 1015 psi).
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The pump is designed for reliable performance in various industrial hydraulic systems.
NACHI VDR series vane pump
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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.
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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.
