YUKEN vane pump PV2R34、PV2R4A
YUKEN Vane Pump PV2R34 and PV2R4A Series: Models & Parameters
1. Overview
This document details the models, key parameters, technical specifications and product features of YUKEN PV2R34 series double vane pumps and PV2R4A series single vane pumps. The PV2R34 series is a high-performance double vane pump integrated with two single PV2R series vane pumps in one housing, while the PV2R4A series is a compact, energy-saving single vane pump developed to meet space-saving requirements. Both series are widely used in various hydraulic systems, featuring stable performance, low noise and easy maintenance.
2. Model Designation
2.1 PV2R34 Series (Double Vane Pump)
The model designation of YUKEN PV2R34 series double vane pumps follows a unified standard, with the specific meaning illustrated by a typical model:
Example: PV2R34-* -* -F-REAA-31
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PV2R: Series code of YUKEN vane pump
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34: Series specification (PV2R34 double vane pump)
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First “*”: Displacement specification of the small-volume pump (unit: cm³/rev)
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Second “*”: Displacement specification of the large-volume pump (unit: cm³/rev)
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F: Special seal mark (used when phosphate esters are adopted as hydraulic fluid, indicating fluororubber seals)
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REAA: Mounting and connection specification
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31: Additional technical parameter code
Note: When anti-clockwise rotation is required, please consult YUKEN for special model customization. For models with displacement of 116 cm³/rev (small or large volume pump), the maximum rotation speed is limited to 1500 r/min.
2.2 PV2R4A Series (Single Vane Pump)
The model designation of YUKEN PV2R4A series single vane pumps is defined as follows, with a typical model for illustration:
Example: PV2R4A-138-L-RAA-10
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PV2R4A: Series code of YUKEN single vane pump
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138: Nominal displacement (unit: cm³/rev)
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L: Mounting type (L = foot mounting; F = flange mounting)
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R: Rotation direction (R = clockwise, standard; anti-clockwise rotation is available on request)
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AA: Port position (from the shaft extension end; A = upper, standard)
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10: Design number
Note: When using phosphate esters as hydraulic fluid, a prefix “F-” must be added to the model number to indicate the use of special fluororubber seals.
3. Models and Key Parameters
The following table details the model specifications, displacement range, maximum rotation speed, maximum operating pressure, and weight of PV2R34 and PV2R4A series vane pumps. All parameters are based on standard working conditions (petroleum-based hydraulic fluid) unless otherwise specified.
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Series
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Type
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Displacement Range (cm³/rev)
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Max. Rotation Speed (r/min)
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Max. Operating Pressure (bar)
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Weight (kg)
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Shaft Speed Range (r/min)
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PV2R34
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Double Vane Pump
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Small: 52, 60, 66, 76, 94, 116 Large: 136, 153, 184, 200, 237
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1800 (1500 for 116 cm³/rev)
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210 (175 for partial models)
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98 (standard)
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600 – 1800
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PV2R4A
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Single Vane Pump
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138.5, 162.6, 194.4
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1800
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172
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40 (foot mount); 50 (flange mount)
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600 – 1800
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Common models of PV2R34 series double vane pumps include (but are not limited to): PV2R34-52-136-F-RAAA-31, PV2R34-60-153-F-RAAA-31, PV2R34-76-200-F-RAAA-31, PV2R34-116-237-F-RAAA-31.
4. Additional Technical Parameters
4.1 Suction Pressure Requirement
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PV2R34 Series: The minimum suction pressure is related to the shaft speed and displacement. For petroleum-based hydraulic fluids, the minimum suction pressure is -20 kPa when the shaft speed is less than 1700 r/min, and 0 kPa when the shaft speed is 1700 – 1800 r/min for models with large-volume pump displacement of 116 cm³/rev.
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PV2R4A Series: The minimum suction pressure shall comply with the requirements for YUKEN single vane pumps, and it is recommended to refer to the official product catalog for detailed values based on specific displacement.
4.2 Hydraulic Fluid Requirements
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Recommended hydraulic fluid: Petroleum-based oils, water-containing fluids (water-glycols, water-in-oil emulsions), or phosphate esters (special seals required for phosphate esters).
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Maximum viscosity: 200 mm²/s (910 SSU) at a shaft speed of 950 r/min; 100 mm²/s (455 SSU) at a shaft speed of 600 r/min (applicable to both series).
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Note: For PV2R4A series, the maximum operating pressure is 172 bar when using anti-wear oil; for other hydraulic fluids, please consult YUKEN for confirmation.
4.3 Pipe Connection Specifications
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PV2R34 Series: The pipe connection types include RC threaded connection (Type A), socket welding (Type B), and butt welding (Type C). The suction port specification is F5-32-A-10 (or F5-32-B-10, F5-32-C-10 based on connection type).
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PV2R4A Series: The pump does not include pipe flange components; the specific flange component number is the same as that of PV2R4 single pumps, and detailed specifications can be found in the official product manual. The discharge port diameter is φ36, and the suction port diameter is φ76.
5. Product Features
5.1 PV2R34 Series (Double Vane Pump)
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High Performance: Maximum operating pressure up to 210 bar, capable of meeting the requirements of high-pressure hydraulic systems, with a wide displacement range to adapt to different flow demands.
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Low Noise: Optimized structural design ensures low noise operation, suitable for noise-sensitive working environments.
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Easy Maintenance: The integral driving parts are combined into a cartridge kit, which can be easily replaced when maintenance is needed.
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Integrated Design: Two single vane pumps are integrated in one housing, driven by a common shaft, with a single suction port and two discharge ports to supply flow to separate hydraulic circuits respectively.
5.2 PV2R4A Series (Single Vane Pump)
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Compact Structure: Developed to meet space-saving requirements, it is 50% smaller in volume and 40% lighter in mass compared to conventional PV2R4 pumps.
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Energy-Saving & High Pressure: Features energy-saving performance and a maximum operating pressure of 172 bar, suitable for medium-pressure hydraulic systems.
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Low Noise: As a low-noise vane pump, it is applicable to various working environments with noise restrictions.
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Flexible Mounting: Available in foot mounting (Type L) and flange mounting (Type F), with clockwise rotation as standard and anti-clockwise rotation available on request.
6. Notes
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The parameters in this document are standard values. For special working conditions (such as extreme temperature, special hydraulic fluid), please consult YUKEN for customized solutions.
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When using phosphate esters as hydraulic fluid, a prefix “F-” must be added to the model number of both series to indicate the use of special fluororubber seals.
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The pump should be operated within the specified shaft speed and pressure range to avoid damage to the pump body and accessories. For PV2R34 series models with 116 cm³/rev displacement, do not exceed the maximum rotation speed of 1500 r/min.
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PV2R4A series pumps do not include pipe flange components; please order the corresponding components according to the official specifications.
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For more detailed technical parameters, installation dimensions and operation instructions, please refer to the official YUKEN PV2R series product catalog.
