PGP517A0230CT1H3 Parker Gear Pump 23cc 250bar

Product Overview

The PGP517A0230CT1H3*NB1B1H7H5 is a Parker Hannifin PGP/PGM 500 Series heavy-duty aluminum external gear pump, associated with historical Parker part number 3339111388. Public Parker cross-reference listings identify the exact part number and model combination.

Parker’s official PGP517 technical documentation specifies the 0230 configuration at 23.0 cm³/rev, with a 500 rpm minimum speed, 3300 rpm maximum speed and 250 bar maximum working pressure. The series is designed for demanding mobile and industrial hydraulic applications.

The complete ordering code also identifies:

• 0230 = 23.0 cm³/rev
• C = Clockwise rotation
• T1 = 1:8 tapered shaft, M14×1.5
• H3 = SAE “B” two-bolt mounting flange
• N = NBR shaft seal
• B1B1 = No rear suction/pressure ports

These definitions are supported by Parker’s official PGP517 technical and ordering-code documentation.

The *H7H5 portion is not independently decoded in the currently accessible Parker standard ordering-code documentation, so it should not be assigned an unverified port, material or sealing definition.

Our replacement units are engineered around the original Parker displacement, rotation, shaft, mounting and hydraulic requirements and undergo 100% simulated operating-condition testing before delivery.

Technical Specifications

PGP517A0230CT1H3*NB1B1H7H5

• Model: PGP517A0230CT1H3*NB1B1H7H5
• Parker Historical Part Number: 3339111388
• Brand: Parker Hannifin
• Product Family: PGP/PGM 500 Series
• Pump Series: PGP517
• Pump Type: Heavy-Duty Aluminum External Gear Pump
• Group: Group 2
• Displacement: 23.0 cm³/rev
• Minimum Speed: 500 rpm
• Maximum Speed: 3300 rpm
• Maximum Working Pressure: 250 bar
• Control: Fixed Displacement
• Drive: Mechanical Rotary Drive
• Housing Platform: Aluminum
• Rotation: C = Clockwise
• Drive Shaft: T1, Ø21.59 mm, 11.2 mm length, 4.0 mm key, M14×1.5, 1:8 taper
• Mounting Flange: H3, SAE “B”, two-bolt mounting
• Shaft Seal: NBR
• Rear Suction Port: B1, no rear port
• Rear Pressure Port: B1, no rear port
• Special Historical Code: *H7H5, exact meaning not independently verified
• Reference Dimension A: 66.7 mm
• Reference Dimension B: 77.4 mm
• Reference Dimension C: 131.9 mm

The displacement, speed, working pressure and PGP517 dimensions are taken from Parker’s official technical documentation. The T1 shaft and H3 flange definitions are also explicitly documented by Parker.

Key Technical Advantages

1. 23.0 cm³/rev Fixed Displacement

Parker defines the 0230 configuration as 23.0 cm³/rev. Actual delivered flow depends on volumetric efficiency, pressure, temperature, viscosity and pump condition.

At 3300 rpm, theoretical displacement flow is:

23.0 × 3300 / 1000 = 75.9 L/min

This is a theoretical value and should not be treated as guaranteed delivered flow.

2. 250 bar Maximum Working Pressure

The Parker PGP517 technical table specifies 250 bar maximum working pressure for the 23 cc configuration. Actual application limits must still be evaluated against inlet conditions, speed and duty cycle.

3. High-Speed Capability

The 23 cc configuration is specified from 500 to 3300 rpm, providing a broad operating range for engine-driven, PTO-driven and hydraulic power-unit applications.

4. T1 Tapered Shaft

The Parker T1 shaft configuration provides:

• 1:8 taper
• M14×1.5 thread
• 4.0 mm key
• Ø21.59 mm shaft diameter
• 11.2 mm shaft length

The drive coupling must precisely match these mechanical dimensions for reliable installation.

5. SAE B Two-Bolt Mounting

The H3 configuration is an SAE “B” two-bolt mounting flange, providing a standardized mechanical interface for mobile hydraulic systems.

6. Pressure-Balanced Bearing Blocks

Parker identifies pressure-balanced bearing blocks as an important feature of the PGP/PGM 500 platform. The design helps manage pressure-induced bearing loading and supports stable, efficient gear-pump operation.

7. Aluminum High-Power-Density Design

The PGP517 is part of Parker’s heavy-duty aluminum pump and motor platform, providing a practical balance between structural performance, weight and package size for mobile hydraulic equipment.

Application Areas

Parker identifies the PGP/PGM 500 platform for:

• Construction
• Material Handling
• Agriculture
• Forestry
• Turf Care
• Industrial Applications

Typical applications include:

Construction Equipment

• Wheel loaders
• Compact construction equipment
• Auxiliary hydraulic circuits
• Mobile hydraulic power units

Agricultural Machinery

• Tractors
• Harvesters
• Sprayers
• Agricultural implements

Material Handling

• Forklifts
• Lifting equipment
• Material-handling vehicles

Industrial Hydraulic Systems

• Hydraulic power units
• Industrial power packs
• Auxiliary hydraulic circuits
• Automated machinery

Expert Maintenance Tips

Do Not Automatically Combine 3300 rpm and 250 bar

The Parker catalog values of 3300 rpm and 250 bar represent the published limits for the 23 cc configuration. Actual permissible operating conditions depend on inlet pressure, fluid viscosity and duty cycle. Parker also provides operating-condition graphs showing pressure dependence on speed and viscosity.

Control T1 Shaft Alignment

During installation, verify:

• 1:8 taper
• M14×1.5 thread
• 4 mm key
• Shaft diameter
• Shaft engagement

Do not use impact loading to compensate for mechanical misalignment.

Confirm the H3 Mounting Interface

Even though H3 is an SAE B two-bolt flange, final interchangeability also requires verification of:

• Pilot diameter
• Bolt pattern
• Pump length
• Port location
• Port thread

Matching the flange alone is not enough to establish full pump interchangeability.

Pay Special Attention to *H7H5

Because *H7H5 is not independently decoded in the currently accessible Parker standard catalog, historical units should be verified against:

• Original nameplate
• Physical pump
• Port dimensions
• Shaft dimensions
• Overall length

Control Hydraulic Contamination

Parker maintenance documentation emphasizes hydraulic-fluid cleanliness as a major factor in gear-pump service life. During replacement, inspect suction filtration, return filtration, reservoir cleanliness and pipework.

Vent the System Before Full-Load Operation

After installing a replacement pump, start under reduced pressure, remove trapped air and gradually increase pressure to normal operating conditions.