yuken double vane pump

Yuken PV2R1 series double vane pump realizes high and low pressure combined output through modular design, and is widely used in hydraulic systems such as injection molding machine, die casting machine and engineering machinery. The following is a detailed analysis of this series of models and specifications, including model naming rules, core parameters, common combinations and key points of model selection:
1、 Model naming rule
PV2R1 series duplex pump model is composed of multi-stage code, and the format is:
PV2R1 – [LP pump displacement] – [HP pump displacement] – [Flange form] – [Shaft extension form] – [Rotation direction] – [Other options]
Example: PV2R-12-23-F-RAA-40
PV2R1: series code (tandem vane pump)
12: Low pressure pump displacement (unit: cm ³/rev, i.e. 12 mL/rev)
HP pump displacement (unit: cm ³/rev, i.e. 23 mL/rev)
F: Flange Form (F=ISO 6162/SAE J518 Flange)
RAA: Shaft extension form (RAA=plain key shaft, DIN 5480 standard)
Direction of rotation (40=clockwise, 50=counterclockwise)

2、 Core parameter range
Combination of displacement
LP pump displacement: 4, 6, 8, 10, 12, 14, 16 cm ³/rev
High-pressure pump displacement: 12, 16, 19, 23, 28, 34, 41, 50 cm ³/rev
Total duplex displacement: LP pump displacement+HP pump displacement (e.g. 12+23=35 cm ³/rev)
Pressure rating
Low voltage section:
Rated pressure: 6.3 MPa
Peak pressure: 8 MPa
High-pressure section:
Rated pressure: 16 MPa
Peak pressure: 21 MPa
Speed range
Minimum speed: 600 rpm (to be adjusted according to oil viscosity)
Rated speed: 1200 rpm
Max. speed: 1800 rpm (short-term allowable)
Performance index
Volumetric efficiency: ≥ 90% (rated working condition)
Overall efficiency: ≥ 82% (rated working condition)
Noise level: ≤ 68 dB (A) (1m distance, rated speed)

3、 Combination of common models
MODEL EXAMPLE LP PUMP DISPLACEMENT HP PUMP DISPLACEMENT TOTAL DISPLACEMENT SUITABLE Scenarios
PV2R1-4-12-F-RAA-40 4 cm ³/rev 12 cm ³/rev 16 cm ³/rev Small injection molding machine lubrication system
PV2R1-8-19-F-RAA-40 8 cm ³/rev 19 cm ³/rev 27 cm ³/rev Medium Die Casting Machine Opening and Closing Mechanism
PV2R-12-23-F-RAA-40 12 cm ³/rev 23 cm ³/rev 35 cm ³/rev large injection molding machine clamping hydraulic system
PV2R1-16-34-F-RAA-40 16 cm ³/rev 34 cm ³/rev 50 cm ³/rev Construction machinery traveling motor drive
PV2R-10-41-F-RAA-50 10 cm ³/rev 41 cm ³/rev 51 cm ³/rev High pressure demand equipment (e.g. hydraulic press)

4、 Application Cases
Hydraulic system of injection molding machine:
Low pressure pump: drive lubricating oil circuit (8 L/min, 6.3 MPa).
High-pressure pump: drive clamping hydraulic cylinder (19 L/min, 16 MPa).
Advantage: the energy consumption of the dual pump system is reduced in coordination, which saves 15% – 20% energy compared with the single pump system.
Die Casting Machine Opening and Closing Mechanism:
Low pressure pump: quick access mould (12 L/min, 6.3 MPa).
HP pump: complete final die locking (23 L/min, 16 MPa).
Effect: Reduce cycle time by 20% and improve production efficiency.
Auxiliary system of engineering machinery:
Low pressure pump: drive the cooling fan (10 L/min, 6.3 MPa).
High-pressure pump: driving traveling motor (41 L/min, 16 MPa).
Features: mute design (≤ 68 dB), meeting outdoor operation environment requirements.

YUKEN RV2R vane pump