PGP502A0062CP2D1NE3E2B1B1 Parker Gear Pump 6.2cc 180bar

Product Overview

The PGP502A0062CP2D1NE3E2B1B1 is an aluminum external gear pump from the Parker Hannifin PGP502 series. This model belongs to the PGP500 Series Group 1 compact platform, with a displacement of 6.2 cm³/rev. It corresponds to Parker part number 3309111356.

The PGP500 Series gear pumps are advanced performance versions of the international “bushing block” style pumps, offering superior performance, high efficiency, and low noise operation at high operating pressures. The PGP502 features a 9-tooth gear profile with optimized flow distribution geometry, minimizing pressure pulsation for exceptionally smooth and quiet operation. The series is available in four frame sizes (PGP 502, 505, 511, 517) with displacements ranging from 0.8 to 70 cm³/rev.

Every unit is manufactured to original equipment specifications, ensuring 100% drop-in interchangeability with genuine Parker PGP502 series pumps without any system modifications. Each pump undergoes rigorous 100% simulated duty-cycle testing on dedicated test benches to validate pressure-flow-efficiency performance curves.

Brand Disclaimer: This product is a high-quality compatible replacement engineered for full interchangeability with Parker Hannifin original equipment. All Parker brand names and model codes are referenced solely to indicate compatibility and interchangeability. This product is manufactured by an independent producer and is not an original Parker product.

Technical Specifications 

• Model Code: PGP502A0062CP2D1NE3E2B1B1

• Parker Part Number: 3309111356

• Brand Series: Parker Hannifin PGP502 (PGP500 Series)

• Pump Type: Fixed Displacement Gear Pump

• Group: Group 1

• Displacement: 6.2 cm³/rev

• Maximum Operating Pressure: 180 bar

• Continuous Operating Pressure (Series): Up to 275 bar (4000 psi)

• Continuous Operating Pressure (Series): Up to 280 bar

• Maximum Speed (Series): 500 – 5000 rpm

• Recommended Maximum Speed: 4000 rpm

• Minimum Speed: 500 rpm

• Rotation Direction: Clockwise (CW / D1 code)

• Drive Shaft Type: European standard 1:8 tapered shaft

• Mounting Flange: European standard rectangular 4-bolt flange

• Inlet Port: 12mm dia – 30mm PCD M6 square

• Housing Material: Cast aluminum / High-strength aluminum alloy

• Gear Teeth: 9-tooth

• Seals: NBR (Nitrile rubber)

• Hydraulic Fluid: Hydraulic oil HLP, DIN 51524-2

• Recommended Viscosity Range: 12 – 100 cSt

• Operating Temperature Range: -15°C to +80°C

• Ambient Temperature Range: -40°C to +70°C

• Inlet Pressure Range: 0.8 – 2.0 bar (absolute)

• Minimum Inlet Pressure: 0.5 bar (absolute, short-term no-load)

• Maximum Pressure Rise Rate: 3000 bar/s

• Recommended Drive: Flexible coupling direct drive

• Weight: 1.45 kg

• Country of Origin: Czech Republic

Key Technical Advantages

1. Lightweight Aluminum Alloy Construction

The high-strength cast aluminum alloy housing delivers a total weight of only 1.45 kg—significantly lighter than cast iron equivalents. This substantial weight reduction makes it ideal for weight-sensitive mobile equipment and vehicle-mounted systems.

2. 9-Tooth Optimized Gear Profile & Low-Noise Operation

The PGP502 features a 9-tooth gear profile, providing smoother meshing characteristics compared to conventional gear pumps. Combined with optimized flow distribution geometry, pressure pulsation is minimized, ensuring exceptionally smooth and quiet operation—particularly advantageous for cab-near installations and urban equipment.

3. Pressure-Balanced Floating Bushings – High Volumetric Efficiency

Pressure-balanced floating bushings deliver ideal efficiency under all operating conditions. They automatically compensate for gear end clearance under high pressure, significantly reducing internal leakage and friction losses while maintaining high volumetric efficiency across the full pressure range.

4. Broad Speed & Temperature Operating Range

Supports a wide speed range of 500 to 5000 rpm with operating temperature range from -15°C to +80°C and ambient temperatures as low as -40°C. Maintains stable flow characteristics from cold start to high-speed continuous duty.

5. International Standard Interface & Drop-In Interchangeability

Featuring the European standard 1:8 tapered shaft and rectangular 4-bolt flange, fully compliant with SAE/DIN international interchange standards. Delivers 100% drop-in interchangeability with genuine Parker PGP502 series pumps—install directly with zero system modifications.

6. Integrated Valve Mounting Capability

The PGP500 series supports integration of multiple control valve types, including relief valves and priority valves. Flexible configuration reduces external valve groups and piping, improving system integration.

7. 100% Simulated Duty-Cycle Testing

Every pump is 100% tested on dedicated hydraulic test benches under simulated real-world operating conditions—validating pressure-flow characteristics and efficiency curves at rated pressure and full speed range—ensuring zero-defect, plug-and-play performance upon installation.

Application Areas

• Commercial Dump Trucks: Body hoist and lower hydraulic systems

• Agricultural Machinery: Tractor hydraulic systems, small implement hitch control

• Construction Equipment: Mini-excavators, skid-steer loader auxiliary hydraulics

• Material Handling Equipment: Forklifts, stacker hydraulic systems

• Mobile Equipment: Aerial work platforms, street sweeper hydraulics

• Industrial Equipment: Small presses, machine tool hydraulic systems

Expert Maintenance Tips

1. Fluid Cleanliness Control

Maintain system fluid cleanliness to ISO 4406 19/17/14 or better. Install a ≤10 μm absolute filtration filter upstream of the inlet port to prevent particle contamination from damaging precision gear pairs and floating bushings.

2. Inlet Line Requirements

Keep suction lines short and straight with adequate diameter—not less than the port size (12mm). Inlet pressure must be maintained between 0.8 – 2.0 bar (absolute) , with absolute minimum of 0.5 bar (short-term, no-load). Prevent cavitation from excessive inlet resistance.

3. Coupling Alignment Precision

Flexible couplings are recommended for direct drive. Ensure pump shaft-to-drive shaft coaxiality deviation ≤0.05 mm and angular deviation ≤0.5° during installation. If the drive involves sprockets or V-belt pulleys, an independent outboard bearing MUST be installed.

4. First-Start Priming Procedure

Before initial startup, prime the pump by bleeding air through the drain port or a loosened outlet fitting. Perform 2–3 jog starts with the outlet open (no load) until oil fills the pump cavity without air bubbles, then connect the load circuit for full operation.

5. Rotation Direction Confirmation

The D1 code in this model indicates clockwise (CW) rotation. Always verify that the drive motor/engine rotation matches the pump before installation. Specify counterclockwise (CCW) configuration when ordering if required.

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