PGP517B0520AE1H3NN4N3S Parker Gear Pump | 52cc 250 bar

Product Overview

The PGP517B0520AE1H3NN4N3S and PGP517A0230CD1H3NP3P2B1B1 are representative models of the Parker Hannifin PGP517 series heavy-duty aluminum external gear pumps. The PGP517 series offers displacements ranging from 16 to 70 cc/rev, meeting the flow requirements of hydraulic systems from heavy-duty construction machinery to agricultural equipment. The 0520 code indicates 52 cc/rev displacement, while 0230 indicates 23 cc/rev.

The PGP517 series is the largest frame size (Group 3) within Parker’s 500 Series heavy-duty gear pump lineup, featuring fixed displacement design. Constructed with high-strength aluminum and featuring pressure-balanced thrust blocks and journal bearings, the series delivers high efficiency and low-noise operation even at elevated working pressures. The PGP517 features a 13-tooth gear design, with optimized gear geometry and flow distribution that significantly reduces pressure pulsation.

Engineered as a direct OEM-replacement solution, the PGP517B0520AE1H3NN4N3S and PGP517A0230CD1H3NP3P2B1B1 fully comply with Parker original design standards and SAE/ISO/DIN mounting interface specifications, offering 100% direct interchangeability with OEM pumps. Every unit undergoes 100% workload simulation testing prior to shipment, rigorously validating pressure retention, volumetric efficiency, and internal leakage performance to meet or exceed OEM standards. Products are Made in Czech Republic.

Complete Model Code Breakdown:

PGP517B0520AE1H3NN4N3S

• PGP — Series: Parker Gear Pump

• 517 — Frame size: PGP517 (Group 3 large frame)

• B — Design version/configuration group

• 0520 — Displacement code: 52 cc/rev

• A — Shaft type/configuration code

• E1H3NN4N3S — Flange type, port configuration, seals, and other detailed configuration codes

PGP517A0230CD1H3NP3P2B1B1

• PGP — Series: Parker Gear Pump

• 517 — Frame size: PGP517 (Group 3 large frame)

• A — Design version/configuration group

• 0230 — Displacement code: 23 cc/rev

• C — Shaft type/configuration code

• D1H3NP3P2B1B1 — Flange type, port configuration, seals, and other detailed configuration codes

Parker Part Number Reference:

• 3339111193 — Corresponds to PGP517A0230CD1H3NP3P2B1B1

• 3339111308 — PGP517 series part number

Technical Specifications 

PGP517 Series General Specifications

• Series: PGP517

• Pump Type: Fixed Displacement Gear Pump

• Displacement Range: 16 – 70 cc/rev (0.09 – 4.27 in³/rev)

• Rated Operating Pressure: 250 bar (3,625 psi)

• Maximum Operating Pressure (Intermittent): 275 bar (3,988 psi)

• Maximum Flow Rate: 168 L/min (44.35 Gal/min)

• Maximum Speed: 3,400 RPM

• Gear Teeth: 13

• Body Material: Aluminum

• Configuration: Single | Tandem | Multiple

• Rotation Direction: Clockwise | Counterclockwise | Bi-Rotational

• Mounting Options: SAE | ISO | DIN

• Shaft Types: SAE | ISO | DIN | Industry Specific

• Port Types: Flange | Straight Threaded

• Port Connections: SAE | ISO | BSPP | ODT

• Thru-Drive Capability: Yes

• Circuit Path: Open

• Minimum Fluid Temperature: 15℃ (5℉)

• Maximum Fluid Temperature: 80℃ (176℉)

• Weight: 30.8 lb (approx. 14 kg)

• Fluid Type: Standard Hydraulic Fluids

PGP517B0520AE1H3NN4N3S Specific Specifications

• Model: PGP517B0520AE1H3NN4N3S

• Displacement: 52 cc/rev

• Rated Operating Pressure: 250 bar

• Maximum Speed: 3,400 RPM

• Rotation Direction: As configured (CW/CCW/Bi-Rotational)

• Body Material: Aluminum

• Weight: Approx. 14 kg

PGP517A0230CD1H3NP3P2B1B1 Specific Specifications

• Model: PGP517A0230CD1H3NP3P2B1B1

• Parker Part Number: 3339111193

• Displacement: 23 cc/rev

• Rated Operating Pressure: 250 bar

• Maximum Speed: 3,300 RPM

• Length: 200 mm

• Width: 140 mm

• Height: 140 mm

• Weight: 9.5 kg

• Body Material: Aluminum

Key Technical Advantages

1. High-Strength Aluminum Housing with Journal Bearing Design
The pump housing is manufactured from high-strength aluminum, delivering lightweight construction without compromising structural integrity. The journal bearing (plain bearing/bushing block) design provides superior shock load resistance and extended service life compared to rolling element bearings. Pressure-balanced thrust blocks ensure maximum efficiency across all operating conditions.

2. Superior Pressure Capability
Rated operating pressure of 250 bar with intermittent pressures up to 275 bar. High-strength materials and large shaft diameters effectively reduce bearing loads for long-term stability under high-pressure conditions.

3. Optimized 13-Tooth Gear Design for Low-Noise Operation
The PGP517 features a 13-tooth gear design with optimized gear geometry and flow distribution that significantly reduces pressure pulsation for exceptionally smooth and quiet operation. SILENCE silent versions are also available for applications with stringent noise requirements.

4. High Power Density with Wide Displacement Coverage
The PGP517 series offers displacements from 16 to 70 cc/rev, with the 0520 model (52 cc/rev) and 0230 model (23 cc/rev) delivering excellent power density in their respective displacement ranges. Maximum flow reaches 168 L/min, providing ample hydraulic power for large equipment.

5. Flexible Configuration and Integration Capability
The PGP517 supports single, tandem, and multiple pump configurations. A wide range of mounting options (SAE, ISO, DIN) and shaft types are available. Thru-drive capability allows tandem drive of additional hydraulic pumps. Optional valve integration includes pressure relief, anti-cavitation, cross-port relief, solenoid unloading, proportional relief, and reversing valves.

6. Three-Piece Construction Design
The three-piece construction design provides greater flexibility for porting distribution.

7. 100% Factory Tested & Direct Interchangeability
Every unit undergoes 100% workload simulation testing prior to shipment, covering pressure retention verification, internal leakage detection, and flow validation. Fully compliant with Parker original design standards, with flange dimensions, shaft specifications, and mounting interfaces identical to OEM pumps—direct drop-in replacement with zero modifications required.

Application Areas

The PGP517 series gear pumps are widely used in the hydraulic systems of the following equipment:

• Aerial Equipment: Aerial lifts

• Agricultural Machinery: Tractors, combine harvesters

• Construction Equipment: Wheel loaders, backhoe loaders, excavators, bulldozers

• Forestry Equipment: Brush chippers, trenchers

• Material Handling Equipment: Forklifts, telehandlers

• Vocational & Municipal Equipment: Street sweepers, municipal service vehicles

• Industrial Hydraulic Power Units: HPU systems

• Mobile Hydraulic Systems: Power steering pumps (with priority valves), brake pumps, lube pumps

Expert Maintenance Tips

1. Model Confirmation & Selection
PGP517B0520AE1H3NN4N3S and PGP517A0230CD1H3NP3P2B1B1 are specific configuration models within the PGP517 series. 0520 indicates 52 cc/rev displacement, while 0230 indicates 23 cc/rev displacement. Before installation, confirm the displacement based on system flow requirements and verify the complete model code on the pump body along with the Parker part number (3339111193 / 3339111308).

2. Rotation Direction Confirmation
The PGP517 series supports clockwise (CW), counterclockwise (CCW), and bi-rotational configurations. Before installation, always verify that the PTO rotation direction of the host machine matches the pump’s rotation direction—incorrect rotation will result in pump failure to prime and may cause severe damage to gears and bearings within a short period.

3. Installation Precautions

• Thoroughly clean the mounting flange and shaft mating surfaces before installation to ensure no debris remains

• Use Parker-specified torque values for mounting bolts (SAE 2-bolt or 4-bolt flange)—avoid over-tightening which may cause distortion of the aluminum housing

• Ensure correct connection of inlet, outlet, and drain ports

• Direct drive with flexible coupling is recommended—pumps subjected to axial or radial loads must be specified with an outboard bearing

4. First Start-Up and Bleeding

• Before first start-up, fill the pump with hydraulic oil through the inlet port—never start dry

• After start-up, run at low speed with no load for 2–3 minutes to ensure complete air evacuation from the system

• Check for abnormal noise or leakage—aluminum housing pumps are particularly sensitive to cavitation

5. Fluid and Filtration

• Use high-quality mineral hydraulic oil compliant with standards

• Maintain system oil cleanliness to ISO 4406 16/13 or better

• Operating temperature should be maintained within 15℃ to 80℃

• Journal bearings are sensitive to fluid cleanliness—install a high-quality suction filter in the inlet line

6. Periodic Maintenance

• Check mounting bolt torque every 1,000 operating hours

• Regularly monitor system operating pressure to ensure it does not exceed 250 bar rated pressure and 275 bar peak pressure

• If flow output decreases, noise levels increase abnormally, or system temperature rises excessively, inspect and replace worn components promptly

• Regularly inspect and replace shaft seals to prevent leakage