VICKERS piston pump PVQ20-B2R-SE1S
Parameters of VICKERS Piston Pump Model PVQ20-B2R-SE1S
1. Model Interpretation
The model PVQ20-B2R-SE1S of VICKERS piston pump adopts standardized coding, and each segment clearly defines the product structure, control mode and functional characteristics, facilitating users to quickly identify and select suitable products:
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PVQ: Series code, indicating the PVQ series variable axial piston pump under VICKERS (a brand of Eaton), which is a straight-axis swash plate type open-circuit design, focusing on low noise, high pressure and high precision control.
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20: Nominal displacement grade code, corresponding to a nominal displacement of 20 cm³/rev, with an actual measured standard displacement of approximately 21.1 cm³/rev.
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B2: Control mode code, indicating the pressure compensation control type. It can automatically adjust the displacement within the set pressure range, and the displacement will return to zero when the pressure exceeds the set value, which is energy-saving and simplifies the circuit.
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R: Shaft rotation direction code, indicating clockwise rotation when viewed from the shaft end (counterclockwise rotation can be customized according to requirements).
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SE1S: Functional configuration code, indicating the standard seal and interface specification, which is suitable for general industrial hydraulic working conditions and compatible with common hydraulic fluids.
2. Technical Parameters
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Parameter Item
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Specification
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Unit
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Model
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PVQ20-B2R-SE1S
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–
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Nominal Displacement
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20 (actual 21.1)
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cm³/rev
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Rated Pressure (Continuous Working Pressure)
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28 (equivalent to 280 bar, 4000 psi)
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MPa
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Peak Pressure (Short-term Impact Pressure)
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35 (equivalent to 350 bar, 5000 psi)
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MPa
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Shaft Speed Range
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600 – 2500 (recommended 1200 – 1800)
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r/min (revolutions per minute)
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Noise Level
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≤75 (at 1800 r/min)
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dB(A)
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Applicable Fluids
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Petroleum-based hydraulic oil, anti-wear hydraulic oil, water glycol, water-in-oil emulsion[2][4]
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–
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Service Life (at 65% rated pressure)
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≥30000
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Hours
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Weight (Basic Pump)
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15.0 (equivalent to 33 lbs)
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kg
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Temperature Adaptation Range
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-20 – 80
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°C
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3. Product Features
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Low Noise Performance: Adopts a bimetallic timing disc design to suppress flow pulsation, with a noise level of ≤75 dB(A) at the rated speed, which is lower than the noise of conventional motors and suitable for noise-sensitive working environments.
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High Precision Control: Equipped with B-type pressure compensation control, the pressure compensation accuracy is ±3%, which can automatically adjust the displacement according to the system pressure, realizing energy-saving operation and simplifying the hydraulic circuit.
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High Reliability: The plunger and cylinder block are processed with precision hardening and ultra-fine grinding, matching wear-resistant sealing components, which can maintain low internal leakage under high pressure and has a service life of up to 30,000 hours.
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Compact Structure & High Power Density: Optimized flow channel design and lightweight materials are adopted, which realizes high flow output in a limited space and is suitable for small and medium-power high-precision hydraulic systems.
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Wide Adaptability: Compatible with a variety of hydraulic fluids, with a wide temperature adaptation range (-20°C to 80°C), and can adapt to complex industrial working conditions.
4. Application Fields
This model is widely used in various high-precision and high-pressure industrial hydraulic systems, including but not limited to: precision machine tools (CNC machining centers, grinders), plastic machinery (injection molding machines), engineering machinery, new energy equipment (small wind power yaw, photovoltaic equipment), medical equipment hydraulics, and test benches, meeting the requirements of high precision, low noise and energy saving of different equipment.
5. Notes
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The pump has high requirements on oil cleanliness, and it is recommended to use hydraulic oil that meets NAS 7 level or above, and configure a high-precision filter to avoid wear of precision components caused by impurities.
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When the operating pressure reaches the peak pressure (35 MPa), the continuous working time should not exceed 5 minutes to prevent damage to the pump body and seals.
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When adjusting the pressure compensation parameter, it is necessary to match the actual working pressure of the system to avoid abnormal operation caused by excessive or insufficient set pressure.
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During low-temperature startup, the viscosity of the hydraulic oil should be preheated to the specified range (20-40 mm²/s) to ensure stable startup and operation of the pump.
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parts such as valve plates and bearings can be replaced independently, and regular inspection and maintenance should be carried out according to the working condition to extend the service life of the pump.
