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PSVL High-Performance Industrial Piston Pump (Original KYB)
The PSVL series is a load-sensing (LS) axial piston pump designed by Japan’s KYB (Kayaba) specifically for small to medium-sized construction machinery and industrial hydraulic systems. Its core advantages include variable displacement, high pressure, high efficiency, and strong compatibility. It is widely used with 3–8 ton excavators and can also be applied in industrial hydraulic equipment.
Key Parameters & Models
Main models: PSVL2-36CG, PSVL-42CG, PSVL-54CG, PSVL-84, etc., with displacement ranging from 36–84 cm³/rev. Among them, the PSVL-50 is an upgraded version for 3–4 ton mini excavators, replacing the traditional PSVL-42.
Pressure range: Maximum working pressure up to 28 MPa (approx. 4060 psi), suitable for heavy-duty working conditions.
Control features: Built-in load-sensing (LS) control that automatically adjusts flow according to load demand, reducing overflow loss and improving system efficiency and energy saving.
Product Advantages
- High Efficiency & Energy Saving: Volumetric efficiency of approximately 95% and overall efficiency of about 90%. Combined with LS control, it reduces energy consumption by 15%–30% and lowers system heat generation.
- Durability & Reliability: Made of high-strength alloy materials and long-life seals, it is wear-resistant and corrosion-resistant, adapting to high-temperature and high-pressure environments. Service life is extended by more than 30% compared with conventional pumps.
- Low Noise & Smooth Operation: Swash-plate axial piston design ensures low pulsation, low noise, and smooth combined movements, enhancing operating experience.
- Flexible Adaptation: Supports SAE flange / shaft-end mounting. Optional functions include pressure compensation and remote pressure control. Compatible with HF/HFC hydraulic oils for various equipment.
- Lightweight Design: Some models feature a approximately 23% weight reduction from previous generations, enabling easier installation and supporting equipment lightweighting and cost optimization.
Typical Applications
- Construction Machinery: 3–8 ton excavators, small loaders, roadheaders, etc.
- Industrial Equipment: Injection molding machines, hydraulic presses, sheet metal processing machinery, aerial work platforms, marine hydraulic systems.
Reference for Matching Hydraulic Valves
The PSVL pump can be matched with KYB KVSX series control valves to form a complete hydraulic system. It is also compatible with industry-standard hydraulic valves and supports system customization and upgrading to meet flow distribution and pressure control requirements under various working conditions.
