PVP23363R26A1 PVP33203R26A4M21 Parker Axial Piston Pump 3600PSI

Product Overview

The PVP23363R26A1/D07AA2A and PVP33203R26A4M21 are precision-engineered interchangeable axial piston pumps fully compatible with the Parker Hannifin PVP Series medium-pressure variable-displacement pumps. Designed for open-circuit systems with a swash-plate mechanism, these units deliver reliable pressure compensation and fast response. They offer 100% form-fit-function interchangeability with original Parker/Denison PVP23 and PVP33 models. Every unit undergoes full simulated operating-condition testing to guarantee volumetric efficiency, pressure integrity, and durability under continuous rated conditions.

Technical Specifications 

• Models: PVP23363R26A1/D07AA2A (PVP23 series), PVP33203R26A4M21 (PVP33 series)
• Displacement: PVP23 – 23 cc/rev (1.4 in³/rev); PVP33 – 33 cc/rev (2.0 in³/rev)
• Continuous (rated) pressure: 248 bar (3600 PSI)
• Peak pressure: 310 bar (4500 PSI)
• Maximum speed: 3000 RPM
• Minimum speed: 600 RPM
• Flow at 1800 RPM / 21 bar: PVP23 approx. 42 L/min (11.1 GPM); PVP33 approx. 59 L/min (15.6 GPM)
• Input power at 1800 RPM, max displacement & 248 bar: PVP23 approx. 19.7 kW (26.5 HP); PVP33 approx. 27.2 kW (36.5 HP)
• Control options: Pressure compensation, remote pressure compensation, load sensing, torque/power limiting, adjustable maximum volume stop (depending on specific model suffix)
• Housing material: High-strength cast iron
• Seals: Nitrile NBR (standard)
• Mounting: SAE B 2-bolt flange
• Operating temperature range: –40°C to +71°C
• Recommended filtration: ISO 16/13 (preferred) to ISO 18/15 (maximum)
• Recommended fluid viscosity: 17–180 cSt (max. start-up 1000 cSt)

Key Technical Advantages

1. High-strength cast-iron housing combined with a precision swash-plate design and replaceable bronze port plate plus piston slipper plate ensures low noise, high volumetric efficiency, and long-term reliability under continuous medium-pressure duty.
2. Fast response times with low control pressures for pressure-compensated and load-sensing circuits reduce parasitic power losses and improve overall system energy efficiency.
3. Full dimensional and functional interchangeability with original Parker PVP units, including shaft, ports, mounting flange, and optional thru-shaft capability (SAE A pilots available), enabling drop-in replacement and multi-pump configurations.
4. Optimized internal flow paths and robust bearing system deliver low noise levels while the serviceable design of critical wear components extends service intervals and total life.
5. Every pump is 100% tested under simulated operating conditions for pressure, flow, and efficiency to guarantee consistent field performance.

Application Areas

Ideal for medium-pressure industrial open-circuit hydraulic systems such as injection molding machines, die-casting equipment, machine-tool hydraulic power units, auxiliary circuits on mobile machinery, metal-forming presses, paper-processing machinery, and port/handling equipment requiring stable flow and precise pressure control.

Expert Maintenance Tips

Ensure precise shaft alignment during installation and keep the suction line short with adequate diameter to prevent cavitation. Confirm the case drain is properly routed to the reservoir without excessive back pressure before start-up. Use high-quality anti-wear hydraulic oil and maintain recommended cleanliness levels with regular filter changes. Set the pressure compensator according to the system’s maximum working pressure and avoid prolonged over-pressure operation. Periodically inspect the port plate and slippers; replace serviceable wear components as needed to restore original performance.