VDR-2A-1A4-13 NACHI Variable vane pump
VDR Series: VDR-1A、VDR-2A、VDR-1B、VDR-2B
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NACHI Variable Vane Pump VDR-2A-1A4-13: Model Explanation & Technical Parameters
1. Model Code Explanation
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Code Segment
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Meaning
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Detailed Description
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|---|---|---|
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VDR
|
Series
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Variable Volume Vane Pump, belonging to the VDR22 design series. It is an economical model equipped with mechanical pressure compensation, suitable for general industrial hydraulic systems.
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|
2B
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Pump Size & Mounting Type
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Size 2: Classified as medium-large displacement; A: Foot type mounting (distinguished from Type B, which is flange type mounting), suitable for fixed installation on equipment bases with stable bearing performance.
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|
1A4
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Control Type & Displacement Grade
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1A4 indicates the pressure compensation control type, which can automatically adjust the displacement according to the system pressure. It corresponds to a standard displacement grade, with a no-load displacement of approximately 24 cm³/rev.
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|
13
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Design & Seal Type
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Special seal configuration, mainly compatible with ISO VG46 hydraulic fluid, with enhanced sealing performance, suitable for medium-pressure industrial working conditions.
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2. Core Technical Parameters
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Parameter
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Value
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Unit
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Notes
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|---|---|---|---|
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Displacement (No-load)
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24
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cm³/rev
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Nominal no-load displacement under standard conditions
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|
Max Working Pressure
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14 (2030)
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MPa (psi)
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Stable and efficient operation range for long-term use
|
|
Allowable Peak Pressure
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16 (2320)
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MPa (psi)
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Short-time peak load, not suitable for long-term operation
|
|
Speed Range
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800–1800
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r/min
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Recommended operating speed to ensure pump performance and service life
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|
No-load Flow Rate
|
30
|
ℓ/min
|
Measured at the standard speed of 1500 r/min, matching the no-load displacement
|
|
Flow Range
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0–30
|
ℓ/min
|
Variable volume adjustment, adjustable according to system demand, consistent with displacement
|
|
Rotation Direction
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Clockwise
|
–
|
Observed from the shaft end (standard configuration)
|
|
Net Weight
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≈17
|
kg
|
Approximate value, subject to slight differences due to production batches
|
|
Fluid Viscosity
|
ISO VG46
|
–
|
Suitable for medium-pressure working conditions, compatible with ISO VG46 hydraulic fluid; viscosity index ≥90.
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3. Key Features
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High Efficiency & Energy Saving: The leak-free pressure balance structure effectively reduces internal leakage, minimizes power loss, and achieves energy-saving effects, especially in the full cutoff state, which is suitable for the working characteristics of the VDR-2A-1A4-13 pump.
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Quiet Operation: Adopting quiet journal bearings and optimized suction/discharge port design, which significantly reduces noise and vibration during operation, improving the working environment and adapting to the stable operation needs of the pump.
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Precise Response: Equipped with a special bias piston mechanism, it ensures fast and stable ON-OFF/OFF-ON response, adapting to the dynamic adjustment needs of the hydraulic system matched with the VDR-2A-1A4-13 pump.
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Compact Design: The overall structure is compact, easy to install and maintain; the pressure and flow adjusters are arranged on the same side for convenient operation and parameter adjustment, which is consistent with the overall design of the VDR series pump.
4. Application & Maintenance Notes
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Application Scope: Suitable for machine tools, injection molding machines, hydraulic presses and other general industrial hydraulic systems, meeting the variable flow and pressure demand of equipment, and perfectly matching the performance parameters of the VDR-2A-1A4-13 pump.
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Fluid Requirement: Compatible with mineral oil-based hydraulic fluids, mainly ISO VG46; do not use water-based fluids unless equipped with special seals to avoid damage to the pump and ensure the service life of the VDR-2A-1A4-13.
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Maintenance: Regularly replace the hydraulic filter and inspect the fluid cleanliness and viscosity to extend the service life of the pump; check the seal for leakage regularly, which is crucial for the stable operation of the VDR-2A-1A4-13 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.
