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PV2R34-116-237 YUKEN Double vane pump
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Description
YUKEN Hydraulic Pump PV2R34-116-237-F-RAA-41 Parameter Description
1. Model Code Interpretation
The model code of YUKEN PV2R34-116-237-F-RAA-41 is composed of multiple segments, each representing specific product specifications, as detailed below:
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PV2R34: Series identifier, indicating a high-pressure, low-noise tandem (double) fixed displacement vane pump of the PV2R34 series, designed for large-displacement hydraulic system requirements, with a robust integrated structure, uniform output flow and stable performance for heavy-duty working conditions.
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116: Nominal displacement of the first pump unit, with a displacement of 116 cc/rev.
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237: Nominal displacement of the second pump unit, with a displacement of 237 cc/rev.
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F: Mounting and port orientation code, specifying the pump’s installation type and oil port direction (specific details refer to YUKEN official technical manual).
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RAA: Control and shaft end specification code, representing the pump’s control mode and shaft end structure configuration, consistent with YUKEN standard RAA series configuration.
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41: Additional specification code, related to the pump’s seal type and other auxiliary configurations, adopting standard oil seal design to ensure good sealing performance.
2. Core Technical Parameters
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Parameter Item
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Specification
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Unit
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Pump Type
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Tandem (Double) Fixed Displacement Vane Pump
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–
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Nominal Displacement (Pump 1)
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116
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cc/rev
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|
Nominal Displacement (Pump 2)
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237
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cc/rev
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|
Maximum Operating Pressure
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21.0 (210)
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MPa (bar)
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|
Maximum Rotational Speed
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1800
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rpm
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|
Minimum Rotational Speed
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750
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rpm
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|
Operating Temperature Range
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0 – 60
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℃
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Shaft Seal Type
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Standard Oil Seal (Refer to model 41 specification)
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–
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Mounting Type
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Flange Mounting (JIS Standard)
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–
|
|
Flange Bolt Specification
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M16 (Strength Class 6.8), 4 pcs; Tightening Torque: 112 – 137 N·m
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–
|
3. Performance Characteristics
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Adopts a robust tandem (double) vane pump structure, integrating two vane pump units into one housing, which ensures stable operation under heavy loads while meeting large-flow hydraulic power demands; the output flow is more uniform than gear pumps, with low noise and long service life owing to balanced radial hydraulic force on the rotor shaft.
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Features high efficiency, low noise, small pressure pulsation and high reliability, suitable for long-term continuous operation.
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The installation and connection dimensions comply with national and international standards, facilitating replacement with domestic and foreign similar products.
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The seals and cartridge kits are specially configured (model 41), adopting standard oil seal design to ensure good sealing performance and easy maintenance and replacement.
4. Application Scope
Widely used in hydraulic systems of large-scale machine tools, heavy-duty plastic machinery, large forging machinery, engineering machinery and other equipment that require large displacement and stable pressure, suitable for heavy-duty working conditions and providing reliable and stable hydraulic power source with dual pump output.
5. Notes
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The pump should be used within the specified temperature and viscosity range to avoid performance degradation or damage caused by excessive temperature or inappropriate oil viscosity.
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When installing, use the specified number and strength class of bolts, and tighten them according to the recommended torque to prevent bolt damage and hydraulic oil leakage.
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For detailed dimensions, oil port specifications and maintenance methods, refer to YUKEN official technical manual (Document No. Pub.JM-0157).
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