PVR50-F-F-39-RAA-3180 Yuken Vane Pump 31.5cc

Product Overview

The PVR50, PVR150 and PVR1050 series are Yuken fixed-displacement single or double vane pumps designed for industrial hydraulic systems. Featuring precision vanes and cam rings, they deliver low noise, high volumetric efficiency and stable output. Manufactured to original Yuken specifications for 100% drop-in interchangeability and fully tested under simulated operating conditions, these pumps serve as direct replacements for genuine Yuken PVR units and are widely used in injection molding machines, machine tools and hydraulic power units.

Technical Specifications 

• Models: PVR50-F-F-39-RAA-3180, PVR50-F-F-45-RAA-3180, PVR50-F-F-51-RAA-3180 (PVR50 series, compatible with PVR150/PVR1050)
• Geometric displacement (PVR50 series): Code 39 = 31.5 cm³/rev; Code 45 = 39.0 cm³/rev; Code 51 = 43.0 cm³/rev; common others: 13=10.0, 20=15.0, 26=21.0, 30=24.5, 36=29.5, 56=47.5 cm³/rev
• PVR150 series: 60=47, 70=57, 90=75, 110=92, 140=115, 170=135 cm³/rev
• PVR1050 double pump: Small + large displacement combinations
• Maximum operating pressure: 175 kgf/cm² (approx. 17.2 MPa)
• Shaft speed range: Max 2000 r/min, Min 600 r/min
• Control type: Fixed displacement vane pump (single or double), clockwise/counterclockwise selectable
• Mounting: Flange (F) or foot (L)
• Weight (approx.): PVR50 flange ≈ 12 kg, foot ≈ 14.7 kg; PVR150 ≈ 29.3 kg
• Direction of rotation: R (clockwise viewing shaft end)
• Port positions: A (up), B (bottom), R (right), L (left) selectable

Key Technical Advantages:

1. Precision vanes and cam-ring design deliver high volumetric efficiency with low pulsation and quiet operation, ideal for precision industrial equipment.
2. Robust cast-iron housing and high-quality seals provide excellent pressure resistance and wear durability across a range of hydraulic fluids (mineral and anti-wear oils).
3. Wide displacement range and flexible configurations (single/double, port and rotation options) enable easy system matching and direct replacement.
4. Full dimensional, interface and performance interchangeability with original Yuken units, backed by 100% simulated duty-cycle testing, ensures consistency, reliability and reduced maintenance costs.

Application Areas

Injection molding machine hydraulic systems, machine tool feed and clamping circuits, industrial hydraulic power units, die-casting machines, plastics machinery, material handling equipment and other applications requiring stable medium-to-high pressure fixed-displacement vane pumps.

Expert Maintenance Tips:

1. Ensure suction lines are clear and leak-free with adequate inlet pressure to prevent cavitation; maintain proper flange or foot alignment.
2. Fully fill and bleed the unit before first start-up. Use suitable anti-wear hydraulic oil of appropriate viscosity; monitor oil temperature and filtration.
3. Periodically inspect vanes and cam ring for wear; monitor case temperature and noise levels. Avoid prolonged operation above maximum pressure.
4. When replacing, confirm exact displacement code, rotation direction and port positions match precisely. Perform unloaded and loaded test runs after installation to verify proper function.