Product Overview
The PV2R2-33-F-RAA-41 is a YUKEN PV2R2 Series high-pressure fixed displacement vane pump with a geometric displacement of 33.3 cm³/rev and a maximum operating pressure of 210 bar (21 MPa) for petroleum-based anti-wear hydraulic fluids.
The PV2R2 Series has been developed specifically for low-noise operation while delivering high-pressure performance. The pump features a cartridge kit design — main internal components are assembled as a replaceable cartridge, enabling quick replacement and significantly reducing maintenance downtime. The PV2R Series offers a wide displacement range of 5.8 to 237 cm³/rev to accommodate diverse application requirements, including injection molding machines.
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
Model: PV2R2-33-F-RAA-41
Brand: YUKEN
Series: PV2R2 Single-Stage Vane Pump
Geometric Displacement: 33.3 cm³/rev (mL/r)
Maximum Operating Pressure:
Petroleum-based anti-wear oils: 210 kgf/cm² (approx. 21 MPa / 3,050 psi)
Water-containing fluids: 70 – 160 kgf/cm² (type-dependent)
Rated Pressure: 16 MPa
Maximum Flow Rate: Approx. 59 L/min
Speed Range: 600 – 1,800 r/min
Recommended Speed: 1,200 – 1,800 r/min
Minimum Speed: 600 r/min
Rotation: Clockwise (R: viewed from shaft end)
Mounting Type: Flange Mount (F)
Port Position: Both suction and discharge ports on top (AA)
Design Number: 41
Shaft Diameter: 25 mm
Material: Cast iron body
Fluid Compatibility: Petroleum-based hydraulic oils (HLP / anti-wear type)
Fluid Temperature Range: -10°C to 80°C
Fluid Cleanliness Requirement: NAS 1638 Class 9
Key Technical Advantages
1. Low Noise Operation
The high-order equation stator curve and arc-shaped vane structure design effectively minimize pressure and flow pulsation, significantly reducing vibration and noise. Most models operate at ≤72 dB(A), providing a more comfortable working environment in industrial settings.
2. High Volumetric Efficiency & Stable High-Pressure Output
Volumetric efficiency reaches 92% or higher, ensuring stable oil supply and minimizing energy loss. With a rated pressure of 16 MPa and peak capability of 21 MPa, the pump meets demanding heavy-load application requirements.
3. Cartridge Kit Design
Major internal driving components are configured as a replaceable cartridge kit, allowing internal parts to be changed quickly without disassembling the entire pump housing. This significantly reduces maintenance downtime and lowers total lifecycle maintenance costs.
4. Wide Displacement Range & Flexible Configuration
The PV2R2 Series offers displacements from 26 to 75 cm³/rev (the 33 model is a mid-range specification). Multiple mounting options (Flange F / Foot L) and port orientation configurations (AA / AB / BA / BB, etc.) provide flexible adaptation to various system layouts.
5. Precision Machining & Extended Service Life
High-strength materials and precision machining processes ensure tight vane-to-stator contact. The oil-immersed design provides cushioning, noise reduction, and eliminates friction between the valve core and oil seal, effectively extending service life.
Application Areas
The PV2R2-33-F-RAA-41 vane pump is widely deployed across the following applications:
Expert Maintenance Tips
Pre-Start Priming: Prior to initial start-up, fill the pump housing with hydraulic fluid through the drain port to prevent dry running and internal component damage.
Coupling Alignment: Ensure coaxial alignment between the pump shaft and drive shaft within ≤0.1 mm. Flexible couplings are recommended to prevent premature bearing failure due to misalignment.
Suction Line Requirements: Suction line diameter must be adequate with flow velocity ≤1 m/s; suction lift height ≤500 mm to prevent cavitation. Install a 10 μm suction strainer.
Fluid Cleanliness: Maintain system fluid cleanliness to NAS 1638 Class 9 or better, with fluid temperature控制在 15 – 60°C.
Rotation Confirmation: Verify pump rotation direction matches system requirements before installation. This model is configured for clockwise rotation (R: viewed from shaft end).
System Bleeding: Purge air from the system before initial operation to prevent cavitation and excessive noise.
