2520V17A5-1AA22R Eaton Vickers Vane Pump 172Bar

Product Overview

The 2520V17A5-1AA22R is an industrial-grade double hydraulic vane pump manufactured to high-precision engineering standards, providing 100% direct drop-in interchangeability with the Eaton Vickers 2520V series. Designed with time-tested intra-vane technology, this double pump integrates two independent cartridge modules—25V (shaft end) and 20V (cover end)—driven by a single input shaft. This enables independent or combined multi-circuit oil delivery ideal for dual-speed high/low pressure systems. Prior to delivery, every 2520V double pump is 100% tested under full-load simulated working conditions to ensure its volumetric efficiency, anti-pulsation stability, and fatigue resistance equal original OEM specifications. It provides an exceptional, cost-effective replacement solution to minimize machinery downtime and procurement budgets.

Technical Specifications

• Model Number: 2520V17A5-1AA22R

• Brand Compatibility: 100% Interchangeable with Eaton Vickers 2520V Series

• Front Pump Displacement (25V – Ring 17): 52.0 ml/rev

• Rear Pump Displacement (20V – Ring 5): 17.0 ml/rev

• Rated Operating Pressure: 172 Bar (2500 psi)

• Maximum Peak Pressure: 207 Bar (3000 psi)

• Maximum Speed: 2700 RPM (Subject to inlet suction & oil viscosity conditions)

• Minimum Speed: 600 RPM

• Control Type: Fixed Displacement

• Rotation (Viewed from shaft end): Clockwise (R)

• Shaft Extension: No. 1 Shaft – Standard Straight Keyed

• Port Orientation: AA (Standard inline outlet and inlet port positions)

• Seal Material: BUNA N (Nitrile), suitable for standard mineral-based fluids

• Approximate Weight: 36.5 kg

Key Technical Advantages

• Hydraulically Balanced Intra-Vane Design: Pressurized fluid is routed between the main vane and intra-vane to balance the outward force against the cam ring. This minimizes vane-tip stress and wear, allowing the pump to maintain over 92% volumetric efficiency even under continuous 172 bar duty.

• Dual Independent Cartridge Kit Architecture: Both front (25V) and rear (20V) sections utilize modular cartridge kits. In-field maintenance or rebuilds can be completed swiftly by swapping the internal cartridges without disconnecting hydraulic plumbing or dismounting the pump body from the machine bracket.

• 100% Drop-in Physical & Hydraulic Interchangeability: Manufactured with precise SAE B 2-bolt mounting flanges, shaft dimensions, and port bolt patterns matching original Vickers specifications. Customers achieve true plug-and-play replacement without modifying structural brackets or piping layout.

• Hydraulic Radial Balance for Long Bearing Life: Twin internal opposed high-pressure zones neutralize radial hydraulic forces acting on the shaft. This eliminates eccentric bearing loading, extending shaft seal and bearing operational life significantly.

Application Areas

The 2520V17A5-1AA22R double pump is widely deployed across medium-to-high pressure industrial circuits requiring multi-flow control:

• Plastics & Rubber Processing: Dual-circuit hydraulic supply for mold clamping and high-pressure injection in injection molding equipment.

• Metal Forming Machines: Rapid-advance and slow-press dual-speed circuits in hydraulic presses, shears, and press brakes.

• Mobile & Marine Equipment: Auxiliary steering, winches, and boom control circuits on marine vessels and construction machinery.

• Industrial Hydraulic Power Units (HPU): Main hydraulic power systems for automated machining lines and central factory HPUs.

Expert Maintenance Tips

• Pre-fill Fluid & Bleed Air: Prior to initial startup or cartridge servicing, always fill the pump housing completely with clean hydraulic fluid and bleed trapped air from system high-points. Never run dry; pulse the electric motor 3 to 5 times (1-2 seconds per pulse) to establish oil films before applying load.

• Strict Fluid Contamination Control: The precision intra-vane clearances demand high fluid purity. Maintain oil cleanliness to ISO 4406 Class 18/16/13 or cleaner, utilizing return filters rated at 10μm absolute or finer.

• Monitor Inlet Vacuum Levels: Keep suction lines short, unobstructed, and fully sealed. Ensure inlet vacuum does not exceed 0.17 bar (5 in. Hg) under operating temperature to avoid destructive cavitation and cam ring erosion.