PVD32AZ140C2G024 Parker Variable Vane Pump 32cc 140bar

Product Overview

The PVD32AZ140C2G024 is a Parker Hannifin PVD Series variable displacement vane pump with a nominal displacement of 32 cm³/rev, outlet rated pressure of 140 bar (2000 psi), speed range of 1000–1800 rpm, mechanical pressure compensator for variable control, oil temperature range of -10 to +70 ℃, and viscosity range of 22–100 mm²/s. The pump features a swashplate-type structure, delivering short adjustment time, wide adjustment range, low noise, and high efficiency.

The PVD Series variable vane pump achieves automatic flow adjustment through a mechanical pressure compensator. When system pressure reaches the compensator set point, the eccentric stator automatically moves toward center, reducing displacement to only leakage flow and eliminating relief losses for significant system heat and energy reduction. The pump features a hydrodynamically compensated port plate structure that improves volumetric efficiency and reduces component wear. Compensator response times are extremely short, allowing elimination of separate pressure relief valves in many systems and simplifying system plumbing layout.

The model code decodes as follows: “PVD” represents the Parker variable vane pump series; “32” denotes nominal displacement of 32 cm³/rev; “AZ” specifies the pressure rating code corresponding to 140 bar rated pressure; “140” is the 140 bar rated pressure code identifier; “C2” specifies mounting flange and shaft configuration; “G024” specifies port position and rotation direction codes. The PVD Series covers displacements from 16 to 50 cm³/rev, offering PVD16, PVD25, PVD32, PVD40, and PVD50 specifications for different flow requirements.

The PVD32AZ140C2G024 features mounting flange, shaft specifications, and port layouts conforming to Parker PVD Series standards, enabling drop-in interchangeability with same-series PVD25, PVD40 models. The pump is widely deployed in machine tools, injection molding machines, die-casting machines, and industrial hydraulic power units. Every PVD32AZ140C2G024 undergoes 100% simulated duty-cycle testing prior to shipment — covering pressure holding, flow output, compensator response, and internal leakage — ensuring complete drop-in interchangeability with original Parker products without installation or plumbing modifications.

Technical Specifications

• Model: PVD32AZ140C2G024

• Brand: Parker Hannifin

• Series: PVD Series variable vane pump

• Pump Type: Swashplate-type variable vane pump (with mechanical pressure compensator)

• Nominal Displacement: 32 cm³/rev

• Outlet Rated Pressure: 140 bar (2000 psi)

• Speed Range: 1000–1800 rpm

• Control Type: Mechanical pressure compensator (variable control)

• Direction of Rotation: Right-hand (depending on configuration)

• Mounting Flange: SAE standard flange

• Shaft Type: SAE standard shaft

• Seals: NBR (Nitrile)

• Housing Material: Cast iron

• Oil Temperature Range: -10 to +70 ℃

• Viscosity Range: 22–100 mm²/s

• Volumetric Efficiency: High (hydrodynamically compensated port plate structure)

• Noise Level: Low noise design

• Fluid Compatibility: Mineral-based hydraulic oil

• Compensator Response Time: Extremely short (separate relief valve can be eliminated)

PVD Series Same-Family Displacement Reference:

• PVD16: 16 cm³/rev, 140 bar rated, 1000–1800 rpm

• PVD25: 25 cm³/rev, 140 bar rated, 1000–1800 rpm

• PVD32: 32 cm³/rev, 140 bar rated, 1000–1800 rpm

• PVD40: 40 cm³/rev, 140 bar rated, 1000–1800 rpm

• PVD50: 50 cm³/rev, 140 bar rated, 1000–1800 rpm

Companion Model Reference:

• Model: PVD40EH140C2G024

• Series: PVD Series

• Nominal Displacement: 40 cm³/rev

• Outlet Rated Pressure: 140 bar (2000 psi)

• Speed Range: 1000–1800 rpm

• Control Type: Mechanical pressure compensator (variable control)

• Oil Temperature Range: -10 to +70 ℃

• Viscosity Range: 22–100 mm²/s

Data based on Parker PVD Series official technical specifications.

Key Technical Advantages

1. Mechanical Pressure Compensator — Precise Variable Control and Energy Savings

The PVD32AZ140C2G024 employs a mechanical pressure compensator for variable control. When system pressure reaches the set point, the eccentric stator automatically moves toward center, reducing displacement to only leakage flow and eliminating relief losses. Compensator response times are extremely short, allowing elimination of separate pressure relief valves in many systems, simplifying plumbing layout and reducing component count. This control method offers simple construction and high reliability, particularly suitable for machine tools, injection molding machines, and other industrial hydraulic systems requiring extended pressure-holding operation, virtually eliminating relief losses during holding conditions for significant system heat and energy reduction.

2. Swashplate-Type Structure — Short Adjustment Time and Wide Adjustment Range

The PVD Series variable vane pump employs a swashplate-type structure delivering short adjustment time and wide adjustment range. The pump instantaneously adjusts flow according to circuit requirements, precisely matching actuator flow demand in each work cycle while reducing energy consumption. The wide adjustment range enables the same pump body to adapt to different flow requirements, providing greater flexibility in system design. Low noise design makes the pump particularly suitable for indoor industrial environments.

3. Hydrodynamically Compensated Port Plate — High Volumetric Efficiency and Long Life

The PVD32AZ140C2G024 features a hydrodynamically compensated port plate structure that effectively improves volumetric efficiency and reduces component wear. This structure uses hydraulic balance forces to keep the port plate tightly against the rotor end face, maintaining stable sealing under high pressure and reducing internal leakage. Simultaneously, hydraulic balance forces reduce friction wear between the port plate and rotor, extending pump service life. This design enables the PVD Series to maintain efficient flow output over extended operation at 140 bar rated pressure.

4. Broad Media Adaptability and Industrial Compatibility

The pump operates with oil temperature of -10 to +70 ℃ and viscosity range of 22–100 mm²/s, suitable for mineral-based hydraulic oil. The wide viscosity and temperature ranges enable the PVD32AZ140C2G024 to adapt to various industrial environments from cold winters to hot summers. Seals are NBR material, suitable for standard industrial hydraulic systems. The pump is widely deployed in machine tools, injection molding machines, die-casting machines, and various industrial equipment with excellent system compatibility.

5. Exceptional Field Interchangeability and Series Selection

The PVD32AZ140C2G024 features mounting flange, shaft specifications, and port layouts conforming to Parker PVD Series standards, enabling drop-in interchangeability with same-series PVD16, PVD25, PVD40, and PVD50 models. The PVD Series covers a wide displacement range of 16–50 cm³/rev within a shared mounting flange system, offering multiple displacement ratings for flexible selection in system design and equipment maintenance, dramatically reducing equipment downtime.

Application Areas

• Machine Tools and Tool Machines: CNC lathes, machining centers, and grinding machine clamping, feed, and tailstock drive hydraulic systems

• Injection Molding Machines: Clamping, injection, and holding pressure auxiliary pump circuits, with compensator control enabling energy-saving pressure holding

• Die-Casting Machines: Shot and intensification system auxiliary hydraulic circuits

• Hydraulic Presses: Four-column and frame-type hydraulic press power sources

• Hydraulic Power Units: Fixed industrial hydraulic power units and non-standard equipment hydraulic power units

• Metallurgical Equipment: Rolling auxiliary equipment and metallurgical auxiliary hydraulic systems

• Marine Auxiliary Equipment: Deck machinery and steering gear hydraulic systems

• Material Handling Equipment: Medium forklift and hydraulic lift platform power units

The PVD32AZ140C2G024 is ideally suited for industrial hydraulic systems requiring 140 bar working pressure and displacements in the 32 cm³/rev range — the classic configuration for machine tool hydraulic power units and injection molding machine auxiliary hydraulic circuits.

Expert Maintenance Tips

1. Shaft Alignment and Coupling Requirements

Maintain concentricity between the pump shaft and drive shaft within 0.05 mm. Flexible couplings are strongly recommended to accommodate minor angular misalignment. The PVD32AZ140C2G024 features an SAE standard mounting flange and standard shaft — never strike the shaft end during installation to avoid damaging internal seals and bearings. Tighten mounting flange bolts in diagonal sequence to the specified torque. Couplings must be equipped with protective guards. Motor-to-pump shaft alignment should be checked after installation and again after 500 hours of operation.

2. Pre-Start Priming Procedure

Before initial startup, the pump must be slowly filled through the case drain port with clean hydraulic oil to ensure adequate lubrication and sealing during startup. Operating a vane pump dry will rupture the oil film between vanes and stator inner surface, causing severe wear. Start the pump in jog mode until the pump and piping are sufficiently filled and vented. After complete venting, run at low pressure for 5–10 minutes, check piping and component tightness, then gradually increase to rated pressure.

3. Pressure Compensator Setting and Adjustment

The mechanical pressure compensator setting should be at least 10–15 bar below the system relief valve setting. During commissioning, first turn the pressure setting screw to the lowest pressure position, then gradually increase to the target pressure. Adjustment must be performed with the pump at full displacement and low operating pressure to avoid system pressure oscillation. Compensator response times are extremely short; in most systems, separate relief valves can be eliminated, though a system safety valve is still recommended as overload protection.

4. Fluid Cleanliness and Filtration

The PVD32AZ140C2G024 requires fluid cleanliness of ISO 18/16/13 (NAS Class 8) or better. Use pressure line filters with a filtration ratio β10 ≥ 75 (per ISO 4572). Avoid suction filters, which increase suction resistance and cavitation risk. Install a breather filter with filtration accuracy ≤10 μm on the reservoir and regularly check oil level and fluid condition. ISO VG32 or VG46 anti-wear hydraulic oil is recommended, with viscosity range of 22–100 mm²/s.

5. Restart Procedure After Extended Shutdown

If the pump has been idle for more than 30 days, manually rotate the shaft several turns to verify free rotation before restarting. Check for abnormal leakage at the case drain port. After startup, operate at low pressure for 10–15 minutes until oil temperature reaches normal operating range before applying full load. Regularly inspect the wear condition of vanes and stator inner surface, replacing vane sets as necessary to restore factory performance.