VDC-13A(B)-1A5-1A*20 Nachi Double vane Pump
VDC Series:VDC-1A/B; VDC-2A/B; VDC-3A/B
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Nachi Vane Pump VDC-13A(B)-1A5-1A*20: Model Explanation & Technical Parameters
1. Model Explanation
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VDC: Series Identifier, representing Nachi’s high-pressure type variable volume vane pump series. This series adopts innovative pressure control and pressure balance mechanisms, combined with an original 3-point ring support system, enabling efficient and stable operation at high pressures up to 14 MPa (2000 psi)[1][2][3].
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13: Pump Type & Size, indicating a double vane pump with a specific size specification. The VDC-13 series belongs to the foot mounting type (foot mountings are included as standard) and is designed for medium to large flow hydraulic systems[1][2][3].
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A(B): Mounting Method, where “A” stands for foot type mounting and “B” stands for flange type mounting. Both mounting methods are optional: foot type mounting is easy to install and suitable for most common hydraulic layouts, while flange type mounting provides better load-bearing capacity and installation stability for layouts requiring firm connections[1][2][3].
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1A5: Pressure Adjustment Level & Flow Characteristics. “1” indicates the ring size specification corresponding to a specific no-load flow rate; “A” represents the constant discharge type, ensuring stable flow output even in the high-pressure range; “5” indicates the fifth level of pressure adjustment range, with an adjustable pressure range of 7 to 14 MPa (1000 to 2000 psi), suitable for high-pressure working conditions[1][2][3].
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1A: Secondary Pressure/Flow Specification, consistent with the “1A” specification in the front segment, ensuring matching performance between the two pump units of the double vane pump, maintaining stable and coordinated operation[1][3].
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*20: Design Number, where “*” is a separator, and “20” represents the specific design version of the pump. This number is related to the internal structure, sealing type, and adjustment mechanism configuration, consistent with the standard design of the VDC series double pumps[1][3][4].
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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High-Pressure Variable Volume Double Vane Pump
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Series
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VDC
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Performance Parameters
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No-Load Flow Rate (1800 min⁻¹)
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7.9 gpm (30 L/min)
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Pressure Adjustment Range
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1000 – 2000 psi (7 – 14 MPa)
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Allowable Peak Pressure
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3045 psi (21 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 (Mount A) / Flange Type (Mount B)
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Weight
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136.7 lb (62 kg) [Mount A]; 105.8 lb (48 kg) [Mount B][1]
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Operational Parameters
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Rotation Direction
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Clockwise (when viewed from the shaft side)[1]
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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. Pressure and discharge rate adjusting mechanisms are located on the same side for easy maintenance[1][2][3].
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3. Key Features
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High-Efficiency & Stable High-Pressure Operation: Adopts innovative pressure control, pressure balance mechanisms and an original 3-point ring support system, significantly improving high-pressure operation performance and delivering efficient and stable performance up to 14 MPa (2000 psi)[1][2][3].
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Low Vibration & Quiet Operation: Multiple new mechanisms are adopted to prevent vibration and noise; the 3-point support system for the control piston and bias piston enhances ring stability, minimizing ring vibration and ensuring quiet operation[1][2][3].
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High-Precision Operation with Excellent Responsiveness: An innovative ring stopper eliminates excessive ring displacement, improving response speed. It achieves high-precision operation at all times, including startup, shutdown and load changes[1][2][3].
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Stable Discharge Rate: A revolutionary pressure compensator-type pressure control mechanism ensures a highly stable constant discharge rate even in the high-pressure range, adapting to the requirements of high-pressure hydraulic systems[1][2][3].
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Easy Maintenance & Handling: Pressure adjusting and discharge rate adjusting mechanisms are installed on the same side of the pump body, simplifying maintenance and daily operation[1][2][3].
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Durable Construction: Made of high-quality materials with exquisite craftsmanship, optimized for high-pressure working conditions, ensuring excellent durability and long service life. The double pump structure meets the demand for medium to large flow hydraulic systems[1][2][3].
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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.
