YUKEN PVL Series and PVR1 Series are high-quality fixed-displacement hydraulic vane pumps, belonging to YUKEN’s compact and practical vane pump product line. As single vane pumps, they are specially designed to provide stable and efficient fluid power for medium and low-pressure hydraulic systems, featuring a compact structure, low noise, and easy maintenance, which makes them widely applicable in various general industrial machinery and hydraulic equipmentsuperscript:1superscript:2.

Designed primarily for general industrial and light-duty hydraulic applications, the YUKEN PVL Series and PVR1 Series hydraulic pumps excel in scenarios requiring stable flow output, low energy consumption, and continuous operation, such as small-sized hydraulic presses, automated equipment, plastic machinery, and light-duty processing equipment. Their optimized structural design and precision manufacturing ensure excellent operational stability and long service life, making them cost-effective choices for industrial hydraulic systemssuperscript:7.

1. Core Specifications & Technical Parameters

Both the PVL Series and PVR1 Series adopt a fixed displacement design, with their series models reflecting their respective displacement ranges, which are the core parameters determining their flow output capacity. The two series differ slightly in pressure levels: the PVL Series maintains a maximum operating pressure of 10 MPa (100 bar), equivalent to 1450 PSI, while the PVR1 Series reaches a maximum operating pressure of 14–16 MPa (140–160 bar), equivalent to 2030–2320 PSI. Both series have a maximum rotational speed of 1800 r/min, ensuring stable and efficient operation under their respective working conditionssuperscript:1superscript:6.

Key technical specifications differ between the two series: the PVL Series has a displacement range of 5–60 cm³/rev, a net weight of approximately 15–30 kg (depending on specific models), a volumetric efficiency of ≥94%, and a noise level of ≤70 dB; the PVR1 Series features a displacement range of 10–50 cm³/rev, a net weight of about 16–28 kg (depending on specific models), a volumetric efficiency of ≥95%, and a noise level of ≤68 dB. Both series adopt precision-machined stator curves and high-quality arc vane designs, which effectively reduce flow pulsation (≤±4%) and internal leakage, ensuring consistent pressure and flow output during long-term operationsuperscript:2superscript:4superscript:6.

2. Structural Features & Core Advantages

YUKEN PVL Series and PVR1 Series integrate mature hydraulic technology and precision manufacturing processes, with structural features that prioritize stability, practicality, and easy maintenance. Both adopt an integrated oil distribution plate design, which optimizes oil flow paths, reduces pressure loss, and improves energy utilization efficiency. The pumps also use arc vanes to extend the service life of stators and vanes, while the stators adopt high-order non-impact transition curves to minimize noise and flow pulsationsuperscript:2superscript:4.

Their core advantages are reflected in multiple aspects: first, reliable performance matching their respective pressure levels, with the PVL Series adapting to low-pressure light-duty hydraulic systems and the PVR1 Series suitable for medium-pressure light to medium-duty hydraulic systems; second, low noise and low vibration, thanks to the optimized stator curve and balanced vane structure, which reduces the impact of fluid flow on the pump body and ensures a quiet working environment; third, easy maintenance, with a simple internal structure that allows quick disassembly and replacement of wearing parts, reducing downtime and maintenance costs; fourth, strong pollution resistance, which can adapt to general industrial oil cleanliness requirements and maintain stable operation in harsh working environmentsuperscript:1superscript:7.

3. Application Scenarios

Due to their excellent performance, stable operation, and cost-effectiveness, YUKEN PVL Series and PVR1 Series hydraulic pumps are widely used in various industrial fields that require medium and low-pressure hydraulic power. Typical application scenarios include small-sized hydraulic presses (50–200 tons), injection molding machines, metal processing machinery, packaging machinery, automated production lines, and engineering machinery accessories that require stable pressure holding and continuous fluid supplysuperscript:3superscript:7.

Specifically, the PVL Series, with its smaller displacement, lighter weight, and lower pressure level, is more suitable for small-sized hydraulic equipment and automated systems with limited installation space, such as small plastic machinery and light-duty processing equipment; the PVR1 Series, with its higher pressure resistance and moderate displacement range, is better adapted to medium-sized hydraulic machinery that requires higher flow output, such as small to medium-sized hydraulic presses, bending machines, and small injection molding machines, providing reliable hydraulic support for the stable operation of various equipmentssuperscript:1superscript:3.