Model 1: SVPDF-4070-4070-20T468
Product Overview
The SVPDF-4070-4070-20T468 is a YUKEN SVPDF Series double variable displacement vane pump. This double pump configuration features two independent variable displacement pumping units, each delivering 40 L/min at a working pressure of 70 kg (approx. 7 MPa) . The double pump parallel design provides higher flow capacity and stronger pressure output capability.
The SVPDF Series integrates two independent pumping cartridges within a single housing, sharing a common drive shaft while delivering two independent pressure and flow outputs through separate variable mechanisms. This design significantly saves installation space, with separate suction and discharge ports.
SVPDF Series pumps are characterized by quiet operation, compact size, high efficiency, long service life, and fast response. Pressure and flow are both adjustable to meet system requirements. As a premium aftermarket alternative to original YUKEN hydraulic pumps, this product offers 100% direct interchangeability with identical mounting dimensions and performance specifications, requiring zero modification to existing systems.
Every unit undergoes 100% simulated duty cycle testing prior to shipment, guaranteeing performance reliability under actual working conditions.
Technical Specifications (Bulleted List)
Model: SVPDF-4070-4070-20T468
Brand: YUKEN
Series: SVPDF Double Variable Vane Pump
Pump Type: Double Variable Displacement Vane Pump
Flow Rate per Section: 40 L/min (@ rated speed)
Total Flow Rate: 80 L/min
Working Pressure: 70 kg (approx. 7 MPa / 1,015 psi)
Maximum Pressure: Up to 20 MPa (configuration-dependent)
Rated Speed: 1425 – 1450 RPM
Rotation: Clockwise (viewed from shaft end)
Pump Body Material: Cast Iron
Drive Method: Electric
Suction Port Size: 30 mm
Discharge Port Size: 25 mm
Weight: Approx. 25 kg
Fluid Compatibility: Petroleum-based hydraulic oils
Impeller Design: Closed impeller, single-stage single-suction
Key Technical Advantages
1. Double Independent Variable Control
The SVPDF Series integrates two independent pump cartridges within a single housing, each with independently adjustable pressure and flow. The dual independent output capability allows simultaneous satisfaction of flow and pressure requirements for two different hydraulic circuits, significantly simplifying system design.
2. Compact Integrated Design
The double pump design integrates the functionality of two pumps into a single housing with a common drive shaft, dramatically saving installation space. Compared to using two separate pumps, the SVPDF Series offers clear advantages in equipment layout.
3. Low Noise & Low Pulsation Operation
The arc-shaped vane design effectively reduces impact between vanes and the stator, minimizing pressure and flow pulsation with significantly reduced operating noise. This makes the pump particularly suitable for noise-sensitive applications such as medical equipment (hydraulic surgical tables) and precision machining equipment.
4. High Efficiency & Long Service Life
SVPDF Series pumps feature high efficiency, long service life, and fast response. The cast iron housing provides excellent strength and wear resistance for long-term stable operation. The closed impeller design effectively improves pump efficiency and stability while reducing internal leakage.
5. Flexible Pressure & Flow Adjustment
The pump’s pressure and flow can be flexibly adjusted according to actual system requirements. This adaptability enables the pump to meet varying flow and pressure demands across different operating conditions.
Application Areas
The SVPDF-4070-4070-20T468 double vane pump is widely deployed across the following applications:
Injection Molding Machines — dual-circuit independent hydraulic control
Die Casting Machines — high-pressure die casting processes
Rubber Machinery — multi-circuit hydraulic drives
Plastic Machinery & Blow Molding Machines
Forging Presses
Tire Building Machines
Medical Equipment — hydraulic surgical tables, etc.
Expert Maintenance Tips
Pre-Start Priming: Prior to initial start-up, fill the pump housing with hydraulic fluid through the drain port to ensure adequate lubrication of internal components.
Fluid Cleanliness: Maintain system fluid cleanliness to ISO 4406 18/16/13 or better to maximize vane and cam ring service life.
Independent Dual Calibration: The SVPDF is a double variable pump requiring separate pressure and flow settings for each of the two independent variable mechanisms. Calibrate both sections sequentially under no-load conditions.
Rotation Confirmation: Verify pump rotation direction matches system requirements before installation. This model is configured for clockwise rotation (viewed from shaft end).
Piping Installation: Suction and discharge ports are independently configured. Clean pipe interiors thoroughly before installation and ensure piping weight is not supported by the pump.
Model 2: SVPF-20-70-20H14
Product Overview
The SVPF-20-70-20H14 is a YUKEN SVPF Series single variable displacement vane pump. This single pump configuration delivers a flow rate of 20 L/min at a working pressure of 70 kg (approx. 7 MPa) .
The SVPF Series is YUKEN’s specially developed low-pressure variable vane pump series, characterized by quiet operation, compact size, high efficiency, long service life, and fast response. Pressure and flow are both adjustable to meet system requirements, making this pump particularly suitable for small, light-duty equipment with limited installation space and noise sensitivity. The SVPF Series’ low-noise, compact design makes it an ideal choice for space-constrained applications.
As a premium aftermarket alternative to original YUKEN hydraulic pumps, this product offers 100% direct interchangeability with identical mounting dimensions and performance specifications, requiring zero modification to existing systems.
Every unit undergoes 100% simulated duty cycle testing prior to shipment, guaranteeing performance reliability under actual working conditions.
Technical Specifications (Bulleted List)
Model: SVPF-20-70-20H14
Brand: YUKEN
Series: SVPF Variable Vane Pump
Pump Type: Variable Displacement Vane Pump
Flow Rate: 20 L/min
Working Pressure: 70 kg (approx. 7 MPa / 1,015 psi)
Rated Speed: 1800 RPM
Minimum Speed: 800 RPM
Pressure Adjustment Range: 3 – 70 bar
Rotation: Clockwise (viewed from shaft end)
Shaft Diameter: 12.7 mm
Mounting Hole Spacing: 103 mm (hole to hole)
Lip Diameter: 82.55 mm
Mounting Type: 2-bolt flange mount
Weight: Approx. 6 kg
Dimensions: Approx. 178 × 178 × 152 mm
Fluid Compatibility: Petroleum-based hydraulic oils
Key Technical Advantages
1. Adjustable Pressure & Flow
SVPF Series variable vane pumps feature fully adjustable pressure and flow to meet actual system requirements. This adaptability enables the pump to meet varying flow and pressure demands across different operating conditions.
2. Compact Design
The SVPF Series is renowned for its compact size, making it particularly suitable for small, light-duty equipment with limited installation space. The compact dimensions allow easy integration into space-constrained systems.
3. Low Noise Operation
The SVPF Series features a low noise level. Optimized vane and stator geometry effectively reduces operating noise, offering distinct advantages in noise-sensitive applications such as medical equipment and office automation.
4. High Efficiency & Long Service Life
This series features high efficiency, long service life, and fast response. High efficiency and extended service life ensure long-term stable operation and lower maintenance costs.
5. Fast Response
The SVPF Series offers fast response characteristics, enabling rapid displacement adjustment during system load changes to maintain stable system pressure.
Application Areas
The SVPF-20-70-20H14 variable vane pump is widely deployed across the following applications:
Toll Collection Machines — small hydraulic drives
Shoe Machinery — light-duty hydraulic equipment
Small & Light Hydraulic Equipment
Medical Equipment — hydraulic surgical tables, etc.
Industrial Automation Equipment
Material Handling Equipment
Expert Maintenance Tips
Pre-Start Priming: Prior to initial start-up, fill the pump housing with hydraulic fluid through the drain port to ensure adequate lubrication of internal components.
Fluid Cleanliness: Maintain system fluid cleanliness to ISO 4406 18/16/13 or better to maximize vane and cam ring service life.
Pressure Adjustment: This model features a pressure adjustment range of 3 – 70 bar. Adjust slowly while the system is running to avoid pressure spikes.
Mounting Torque: For 2-bolt flange mounting, refer to YUKEN service manual for specified torque values. Mounting hole spacing is 103 mm with a lip diameter of 82.55 mm.
Rotation Confirmation: Verify pump rotation direction matches system requirements before installation. This model is configured for clockwise rotation (viewed from shaft end).
