Technical Parameters of Vickers Hydraulic Pump PVB29-FRSW-20-CME-11

1. Basic Information

• Model: PVB29-FRSW-20-CME-11
• Brand: Vickers
• Pump Type: Axial Piston Pump (Variable Displacement, Open Circuit)
• Series: PVB Series
• Application: Heavy-Duty Industrial Hydraulic Systems, Large-Scale Injection Molding Machines, Mining Equipment, Oil and Gas Drilling Equipment, Heavy Construction Machinery, High-Pressure Hydraulic Power Units

2. Core Performance Parameters

• Displacement: 61.60 cm³/rev (3.76 in³/rev)
• Maximum Operating Pressure: 210 bar (3000 psi) when using anti-wear hydraulic oil; 140 bar (2000 psi) when using water-glycol or water-in-oil emulsion (40%/60%)
• Maximum Shaft Speed: 1750 r/min (continuous operation); 2400 r/min (intermittent operation)
• Minimum Inlet Pressure: 0.8 bar (11.6 psi) (absolute pressure, to prevent cavitation)
• Volumetric Efficiency: ≥93% (at rated pressure and speed)
• Mechanical Efficiency: ≥88% (at rated pressure and speed)
• Flow Rate: 29 gpm @ 1750 rpm (under standard operating conditions)

3. Fluid Requirements

• Fluid Type: Anti-wear hydraulic oil (ISO VG 32, 46, 68 recommended); Compatible with water-glycol and water-in-oil emulsion (40%/60%)
• Fluid Temperature Range: -20°C to 80°C (-4°F to 176°F); Maximum intermittent temperature: 90°C (194°F)
• Fluid Cleanliness: ISO 14644-1 Class 18/14; Recommended filtration: 6 μm absolute
• Viscosity Range: 10 to 400 mm²/s (cSt) at operating temperature (equivalent to 70-1020 SSU)
• Seal Material: Buna-N (standard configuration)

4. Mounting & Shaft Specifications

• Mounting Type: Flange Mounting (conforms to SAE ‘C’ 2-bolt standard)
• Shaft Rotation: Clockwise (right hand, viewed from the shaft end); Left-hand rotation is available on request
• Shaft End: Straight keyed design, single shaft style
• Shaft Diameter: 31.75 mm (1.25 inch) (SAE standard), with 7.94 mm (5/16 inch) key
• Shaft Length: 47.63 mm (1 7/8 inch)
• Swash Plate Movement: One side of center (pressure compensated models only)

5. Control & Adjustment

• Control Type: Pressure Compensator with Adjustable Maximum Displacement Stop (CME type)
• Pressure Compensator Range: 17.2 to 103.4 bar (250 to 1500 psi)
• Control Design Number: 11 (standard configuration for C and CM series controls)
• Port Configuration: Side Ports (w-type); Inlet & Outlet Ports: SAE #20 O-ring; Case Drain Ports: SAE #8 O-ring

6. Physical & Environmental Parameters

• Approximate Weight: 26 kg (57.3 lb)
• Ambient Temperature Range: -20°C to 55°C (-4°F to 131°F)
• Protection Class: IP54 (against dust and splashing water)
• Material: Pump Housing – Cast Iron; Piston & Shaft – Alloy Steel; End Cover – Ductile Iron

7. Standard Compliance & Notes

• Compliance: Conforms to ISO 3019-2 and VDMA 24560-1 standards (for flange mounting); Meets SAE flange mounting specifications
• Note 1: The maximum operating pressure and speed shall not be exceeded simultaneously to avoid premature wear and component damage.
• Note 2: Regular maintenance of fluid cleanliness and viscosity is essential to ensure the pump’s service life and stable performance.
• Note 3: All parameters are based on standard operating conditions (using anti-wear hydraulic oil at 25°C); deviations may occur under special working environments.
• Note 4: The pump is 100% tested before leaving the factory to ensure compliance with Vickers performance standards.
• Note 5: The maximum pressure setting shall not exceed the specified limit based on the fluid type used to avoid seal damage and leakage.