25VTAS17A2202DB22R Vickers Thru-Drive Vane Pump 207bar

Product Overview

Technical Specifications

• 25VTAS17A2202DB22R (Order No. 02-125403-DBR)
• 25VQTBS21A2297AA20R (Order No. 02-125443-AAR)
• 25VQTAS21A2202AA20R

• 25VTAS Series (Standard Bearing, SAE 4-Bolt Flange Mount)
• 25VTBS Series (Standard Bearing, Foot Mount)

• 25VQTAS Series (Standard Bearing, SAE 4-Bolt Flange Mount)
• 25VQTBS Series (Standard Bearing, Foot Mount)

• Product Type: Positive-Displacement Fixed Vane Pump (Thru-Drive Configuration)
• Number of Vanes: 12 per cartridge
• Construction: Intra-Vane Modular Cartridge Design
• Hydraulic Balance: Diametrically opposed inlet/outlet chambers, eliminating radial hydraulic loading
• Thru-Drive: Rear splined shaft extension for tandem pump mounting
• Rotation: Clockwise (R = Right) or Counter-Clockwise (L = Left) viewed from shaft end
• Mounting: SAE 4-Bolt Flange (A) or Foot Mount (F)

• Displacement Range: 32.5 ~ 81.0 cc/rev (1.98 ~ 4.94 in³/rev)
• Continuous Pressure Rating: 172 bar (2,500 psi)
• Intermittent Peak Pressure: 190 bar (2,750 psi)
• Maximum Speed: 1,800 rpm
• Max Flow (@1,800 rpm): 51.1 ~ 109 L/min (13.5 ~ 28.8 US gpm)
• Volumetric Efficiency: ≥90%
• Noise Level: As low as 62 dB(A)
• Weight: Approx. 14.8 kg (33 lbs)

• Displacement Range: 40.2 ~ 67.5 cc/rev (2.45 ~ 4.12 in³/rev)
• Continuous Pressure Rating: 207 bar (3,000 psi)
• Intermittent Peak Pressure: 228 bar (3,300 psi)
• Maximum Speed: 1,800 rpm
• Max Flow (@1,800 rpm): 88.5 ~ 109 L/min (23 ~ 28.8 US gpm)
• Volumetric Efficiency: ≥90%
• Noise Level: As low as 62 dB(A)
• Weight: Approx. 14.8 kg (33 lbs)

• Displacement Code: 17 = 55 cc/rev (3.36 in³/rev)
• Port Connection: A = SAE 4-Bolt Flange
• Shaft Type: 1 = Straight Key
• Outlet Position: A = Opposite Inlet
• Design Number: 22
• Rear Pump Interface: D = Specific rear pump spline specification
• Rotation: R = Clockwise

• Displacement Code: 21 = 67 cc/rev (4.13 in³/rev)
• Port Connection: A = SAE 4-Bolt Flange
• Shaft Type: 1 = Straight Key
• Outlet Position: A = Opposite Inlet
• Design Number: 20
• Rear Pump Interface: 2297 = Specific rear pump spline specification
• Rotation: R = Clockwise

• Displacement Code: 21 = 67 cc/rev (4.13 in³/rev)
• Port Connection: A = SAE 4-Bolt Flange
• Shaft Type: 1 = Straight Key
• Outlet Position: A = Opposite Inlet
• Design Number: 20
• Rear Pump Interface: 2202 = Specific rear pump spline specification
• Rotation: R = Clockwise

• 25VT = Series Frame Size (25V frame, T = Thru-Drive)
• AS = Mounting Type (A = SAE Flange, S = Standard Bearing)
• 17 = Displacement Code (corresponds to 55 cc/rev)
• A = Port Connection (SAE 4-Bolt Flange)
• 2202 = Rear Pump Drive Interface Code
• D = Outlet Position Code
• B = Design Variant Code
• 22 = Design Number
• R = Clockwise Rotation

Key Technical Advantages

Application Areas

• Injection Molding Machines: Multi-stage hydraulic power source for clamping, injection, and ejection — thru-drive enables combining fixed pumps (clamping/injection) with variable pumps (ejection/auxiliary) on a single motor for energy optimization
• Die Casting Machines: High clamping force with fast cycle rates — high volumetric efficiency minimizes oil temperature rise
• Machine Tool Hydraulic Systems: Independent supply for feed drives, clamping circuits, and spindle drives — low pulsation ensures machining precision
• Hydraulic Presses: High-pressure power source for metal forming, stamping, and drawing operations
• Metallurgical Equipment: Mill screw-down systems, continuous casting vibration tables — heavy-duty continuous operation
• Material Handling Equipment: Forklift lift and tilt systems, AGV drive systems
• Industrial Power Units: Multi-actuator centralized supply systems — thru-drive enables compact design
• Rubber Machinery: Internal mixers and extruders requiring multi-circuit independent supply

Expert Maintenance Tips

• Fluid Cleanliness Control: Maintain hydraulic oil cleanliness at ISO 4406 17/14/11 or better. The precision clearances between the intra-vanes and cam ring inner profile are critical — particulate contamination accelerates wear, causing volumetric efficiency loss and increased internal leakage. Install a 10 μm absolute filter on the return line.
• Viscosity & Temperature Management: Recommended fluid: anti-wear hydraulic oil with viscosity grade ISO VG 32–68 at 40°C (or automotive crankcase oil with SC/SD/SE/SF designation). At rated speed and pressure, recommended viscosity range is 13 cSt minimum to 54 cSt maximum (corresponding to oil temperatures of 49°C minimum to 65°C maximum). Continuous oil temperature must not exceed 99°C, or cartridge and seal life will be significantly reduced.
• Cold Start Precautions: When operating with SAE 10W oil in the 860 to 54 cSt viscosity range, speed and pressure must be limited to 50% of their respective ratings until the system is fully warmed up. When oil viscosity exceeds 860 cSt at startup, special care must be taken to ensure the entire system — including remote cylinders and motors — is thoroughly warmed before gradually applying load.
• Thru-Drive Rear Pump Installation: When mounting a rear pump, ensure the rear pump spline fully engages with the front pump’s thru-drive output spline. Tighten mounting bolts in a diagonal pattern. The rear pump inlet should preferably receive pilot pressure from the front pump’s case drain port, or a dedicated supply line should be installed. The rear pump rotation direction must match the front pump.
• Shaft Alignment: Pump-to-driver concentricity must be strictly controlled. A flexible coupling is strongly recommended to absorb misalignment and prevent bearing damage from bending moments or radial loads. Tighten flange mounting bolts in a diagonal pattern to ensure reliable face sealing.
• Suction Line Requirements: Inlet vacuum must be strictly controlled. Mount the pump as close to the reservoir as possible. All suction line connections and flanges must be airtight — air ingress causes cavitation, increased noise, and reservoir foaming.
• Seal Material Compatibility: Standard seals (no F3 prefix) are suitable for mineral-based hydraulic oils and water-glycol fluids. If the system operates with phosphate ester fire-resistant fluids, the F3-prefix model designation must be selected (e.g., F3-25VTAS17A2202DB22R), which features Viton (FKM) seal material. Using standard NBR seals with phosphate ester fluids will cause seal swelling and catastrophic failure.
• Cartridge Replacement Interval: Inspect vane wear and cam ring inner profile condition every 5,000 operating hours. Replace the cartridge assembly when volumetric efficiency drops by more than 15% or noise levels increase noticeably. The modular cartridge design enables field replacement in 30–60 minutes without removing the pump from the system.

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