VDS-0A-1A3-10 nachi vane pump
VDS Series: VDS-0A; VDS-0B
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Nachi Vane Pump VDS-0A-1A3-10: Model Explanation & Technical Parameters
1. Model Explanation
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VDS: Series Identifier, representing Nachi’s compact variable vane pump series. This series inherits the performance advantages of the original VDR series, featuring high efficiency, low noise and compact structure, with minimal power loss especially at full cutoff.
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0: Pump Size, indicating the basic size specification of the pump, which determines the overall structure and installation dimensions of the pump.
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A: Mounting Method, standing for foot type mounting. This mounting method is easy to install and suitable for most common hydraulic system layouts, which is a standard mounting type for VDS series pumps with size 0, and its weight is heavier than flange type mounting.
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1: Ring Size, corresponding to a no-load flow rate of 3.94 gpm when the pump operates at 1800 min⁻¹, which is a fixed ring size specification for this model variant.
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A: Flow Rate Characteristics, representing the constant discharge type, ensuring stable flow output during the pump’s operation and adapting to most hydraulic system requirements.
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3: Pressure Adjustment Range, indicating the adjustable pressure range of the pump is 435 to 1015 psi (equivalent to 3-7 MPa), which belongs to the third level of pressure adjustment range for VDS series pumps and is suitable for high-pressure working conditions[1][2]. The factory-set maximum pressure for this level is 7.0 MPa (71.4 kgf/cm²).
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10: Design Number, representing the specific design version of the pump, which is related to the internal structure, sealing type and other detailed configurations, consistent with the standard design of VDS series pumps.
2. Technical Parameters
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Parameter Category
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Parameter Description
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Value
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Basic Parameters
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Pump Type
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Compact Variable Volume Vane Pump
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Series
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VDS
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Performance Parameters
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No-Load Flow Rate (1800 min⁻¹)
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3.94 gpm
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Pressure Adjustment Range
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435 – 1015 psi (3 – 7 MPa)
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Rotation Speed Range
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800 – 1800 min⁻¹
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Installation & Physical Parameters
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Mounting Method
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Foot Type Mounting (Mount A)
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Weight
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14.3 lb (6.5 kg)
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Operational Parameters
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Rotation Direction
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Clockwise (when viewed from the shaft side)
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Max Back Pressure of Drain Piping
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≤ 4.3 psi (≤ 0.03 MPa)
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Pressure Adjustment Method
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Clockwise rotation of the adjusting screw to increase pressure; counter-clockwise rotation to decrease pressure.
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3. Key Features
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High Efficiency: Precise machining minimizes power loss, especially during full cutoff operation, ensuring efficient energy utilization, which inherits the performance advantages of the VDR series.
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Quiet Operation: Equipped with journal bearings and optimized suction/discharge port configurations, reducing operating noise and vibration even in the high-pressure range (up to 1015 psi/7 MPa).
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Compact & Simple Design: Economical and easy to handle, suitable for a wide range of hydraulic systems, and the foot type mounting ensures convenient installation, adapting to most common hydraulic system layouts.
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Precise Performance: Prompt on-off response ensures instantaneous, stable and high-precision operation, meeting the requirements of high-pressure working conditions corresponding to the 435-1015 psi (3-7 MPa) pressure range. The factory-set maximum pressure is 7.0 MPa, ensuring stable operation under high-pressure loads.
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Durable Construction: High-quality materials and exquisite craftsmanship ensure excellent durability and long service life, consistent with the robust structural design of Nachi VDS series pumps, and it is specially optimized for high-pressure working conditions.
VDS 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.
