Product Overview

The PD075PS02SRS5AC00S1000000 is a Parker Hannifin PD Series variable displacement axial piston pump for open-circuit industrial hydraulic systems.

Parker’s official PD documentation specifies the PD075 at:

• 75 cm³/rev
• 4.58 in³/rev
• 1800 rpm rated drive speed
• 4000 psi / 280 bar maximum outlet pressure
• 34 GPM / 128.7 L/min reference flow
• 100 hp / 74.6 kW reference input power.

The second model, PD060PB04SRS5BL00S1000000, belongs to the PD060 frame and uses a different mechanical and hydraulic configuration:

• 60 cm³/rev
• 1800 rpm rated drive speed
• 4000 psi / 280 bar maximum outlet pressure
• 27 GPM / 102.2 L/min reference flow
• 79 hp / 58.9 kW reference input power
• L0 load-sensing with pressure limiter control.

The PD platform is documented by Parker as compact, quiet and efficient, with low flow ripple, long-life tapered-roller shaft bearings, low-friction hydrostatically balanced cam bearings, standardized SAE/ISO mounting and ports, displacement-stop options and service-oriented construction.

For aftermarket replacement, compatibility should be verified at the complete model-code level. Our replacement program is based on in-place interchangeability and 100% simulated working-condition testing.

Technical Specifications

A. PD075PS02SRS5AC00S1000000

• Brand: Parker Hannifin
• Series: PD
• Complete Model Code: PD075PS02SRS5AC00S1000000
• Product Type: Variable Displacement Axial Piston Pump
• Circuit: Open Circuit
• Configuration: PD Industrial
• Maximum Displacement: 75 cm³/rev
• Displacement: 4.58 in³/rev
• Rated Drive Speed: 1800 rpm
• Maximum Outlet Pressure: 4000 psi / 280 bar
• Reference Flow: 34 GPM / 128.7 L/min
• Reference Input Power: 100 hp / 74.6 kW
• Control: C0 Pressure Limiter
• C0 Adjustment Range: 80–280 bar / 1160.30–4061.05 psi.
• Mounting & Ports: S — SAE C pilot, SAE flange, SAE auxiliary ports
• Shaft: 02 — Keyed SAE C 32-1
• Shaft Seal: S — Single Shaft Seal
• Rotation: R — Clockwise
• Configuration Code: S — Industrial
• Seal Material: 5 — Fluorocarbon
• Design Code: A
• Additional Control: 0 — None
• Port Orientation: S — Side Ports
• Displacement Stop: 1 — Adjustable Maximum Displacement Stop
• Thru-Drive: 0 — None
• Paint: 00 — No Paint
• Special Features: 00 — None.

Pressure-rating note

For this documented PD generation, Parker’s published table specifies 4000 psi / 280 bar maximum outlet pressure. The reviewed official document does not provide a separate peak-pressure rating, so no independent peak value is added here.

B. PD060PB04SRS5BL00S1000000

• Brand: Parker Hannifin
• Series: PD
• Complete Model Code: PD060PB04SRS5BL00S1000000
• Product Type: Variable Displacement Axial Piston Pump
• Circuit: Open Circuit
• Configuration: PD Industrial
• Maximum Displacement: 60 cm³/rev
• Displacement: 3.66 in³/rev
• Rated Drive Speed: 1800 rpm
• Maximum Outlet Pressure: 4000 psi / 280 bar
• Reference Flow: 27 GPM / 102.2 L/min
• Reference Input Power: 79 hp / 58.9 kW
• Control: L0 Load Sensing with Pressure Limiter
• Load-Sensing Differential Pressure Range: 10–30 bar / 145.04–435.11 psi
• Pressure-Limiter Range: 80–280 bar / 1160.30–4061.05 psi.
• Mounting & Ports: B — ISO 125 mm pilot, metric flange, BSPP auxiliary ports
• Shaft: 04 — ISO/DIN keyed shaft, 32 mm diameter
• Shaft Seal: S — Single Shaft Seal
• Rotation: R — Clockwise
• Configuration: S — Industrial
• Seal Material: 5 — Fluorocarbon
• Design Code: B
• Control Option: L0
• Additional Control: 0 — None
• Port Orientation: S — Side Ports
• Displacement Stop: 1 — Adjustable Maximum Displacement Stop
• Thru-Drive: 0 — None
• Paint: 00 — No Paint
• Special Features: 00 — None.

L0 control

Parker defines L0 as:

Load sensing 10–30 bar ΔP with pressure limiter 80–280 bar.

Therefore, this pump should be integrated and tested as a load-sensing pressure-limited configuration rather than treated as a basic fixed pressure-compensated pump.

PD Series Reference Data

The original title also contains PD045, PD060, PD075, PD100 and PD140. Parker’s official PD performance table lists:

PD045

• Displacement: 45 cm³/rev
• Maximum Outlet Pressure: 4000 psi / 280 bar
• Rated Drive Speed: 1800 rpm
• Reference Flow: 21 GPM / 79.5 L/min
• Reference Input Power: 53 hp / 39.5 kW

PD060

• Displacement: 60 cm³/rev
• Maximum Outlet Pressure: 4000 psi / 280 bar
• Rated Drive Speed: 1800 rpm
• Reference Flow: 27 GPM / 102.2 L/min
• Reference Input Power: 79 hp / 58.9 kW

PD075

• Displacement: 75 cm³/rev
• Maximum Outlet Pressure: 4000 psi / 280 bar
• Rated Drive Speed: 1800 rpm
• Reference Flow: 34 GPM / 128.7 L/min
• Reference Input Power: 100 hp / 74.6 kW

PD100

• Displacement: 100 cm³/rev
• Maximum Outlet Pressure: 4000 psi / 280 bar
• Rated Drive Speed: 1800 rpm
• Reference Flow: 46 GPM / 174.1 L/min
• Reference Input Power: 133 hp / 99.2 kW

PD140

• Displacement: 140 cm³/rev
• Maximum Outlet Pressure: 4000 psi / 280 bar
• Rated Drive Speed: 1800 rpm
• Reference Flow: 63 GPM / 238.5 L/min
• Reference Input Power: 185 hp / 138.0 kW.

Key Technical Advantages

1. Variable-displacement axial piston design

Parker defines the PD family as variable-displacement axial piston pumps for open-circuit applications. The adjustable displacement mechanism allows hydraulic flow to be varied according to control demand rather than remaining at a fixed geometric displacement.

2. C0 and L0 provide different hydraulic control architectures

The PD075 configuration uses C0 Pressure Limiter with an 80–280 bar adjustment range.

The PD060 configuration uses L0 Load Sensing + Pressure Limiter, combining:

• 10–30 bar LS differential pressure
• 80–280 bar pressure limiting.

This difference is critical when integrating a replacement pump into the original hydraulic schematic.

3. Long-life tapered-roller shaft bearings

Parker lists long-life tapered-roller shaft bearings among the PD design features. This bearing arrangement is intended to provide stable shaft support under the mechanical loading associated with industrial hydraulic pump operation.

4. Low-friction hydrostatically balanced cam bearings

Parker also specifies low-friction, hydrostatically balanced cam bearings, targeting stable cam movement with reduced friction during variable-displacement operation.

5. Low flow ripple

Parker identifies low flow ripple as a PD-series feature. Reduced pulsation can help limit pressure fluctuations transmitted into piping, valves and actuators.

6. Compact industrial packaging

Parker describes the PD series as compact, quiet and efficient, with SAE and ISO mounting/port options and end/side port configurations. This supports equipment designs where installation space and interface compatibility are important.

7. Adjustable maximum displacement stop

Both target configurations use code 1, identifying an adjustable maximum displacement stop. This provides a mechanical upper limit on displacement and therefore can constrain maximum pump flow within the system design.

8. Service-oriented configuration architecture

Parker lists easy service as a PD-series feature and provides multiple standard shaft, mounting, porting and control configurations. For aftermarket replacement, this configuration architecture is useful for rebuilding or replacing a pump at the complete-code level rather than using displacement alone.

Application Areas

Parker’s official PD industrial application list includes:

• Industrial Power Units
• Industrial Molding Machines
• Hydraulic Presses
• Oil Lift Pumps
• Turbine Start Systems
• Conveyor Drives

For the PD075 C0 configuration, application design should account for the pressure-limiter setting.

For the PD060 L0 configuration, the system should provide the appropriate load-sensing signal and differential-pressure conditions.

Final compatibility should always be checked against the original hydraulic schematic and complete pump model code.

Expert Maintenance Tips

1. Do not treat PD075 C0 as a fixed-pressure pump

The C0 adjustment range is 80–280 bar, while 280 bar is the PD series maximum outlet-pressure specification in the reviewed Parker documentation. During commissioning, record the actual pressure-limiter setting separately from the pump’s pressure rating.

2. Verify the L0 load-sensing circuit on PD060

The L0 configuration requires an LS differential pressure of 10–30 bar together with pressure limiting from 80–280 bar. The LS control line, valve metering characteristics and pressure-limiter setting should therefore be verified during replacement commissioning.

3. Treat 1800 rpm as the rated drive speed

Parker’s PD060 and PD075 performance data specifies 1800 rpm rated drive speed. Product pages should use “rated drive speed” rather than automatically calling 1800 rpm the absolute maximum speed.

4. Verify shaft compatibility before installation

The PD075 uses an SAE C 32-1 keyed shaft, while the PD060 configuration uses a 32 mm ISO/DIN keyed shaft. Both use keyed shafts, but their mechanical standards and mounting interfaces differ.

5. Verify mounting and auxiliary-port standards

The PD075 configuration uses an SAE C pilot with SAE auxiliary ports, while PD060PB04 uses an ISO 125 mm pilot, metric mounting and BSPP auxiliary ports. These details affect both mechanical installation and hydraulic plumbing.

6. Recheck the maximum displacement stop

Both configurations use the adjustable maximum displacement-stop option. After replacement, confirm that the maximum displacement has been set consistently with the original system flow requirement.

7. Clean the hydraulic circuit before commissioning

Inspect the reservoir, suction circuit, return filtration, control valves and hydraulic lines for contamination generated by the failed pump. Particulate contamination can accelerate wear in the cylinder barrel, valve plate, slippers and control components of a replacement axial piston pump.

8. Commission progressively

Recommended startup sequence:

Low speed → confirm oil supply → verify rotation → low pressure → confirm displacement response → increase pressure → rated speed → sustained-load test

9. Apply 100% simulated working-condition testing

For confirmed replacement configurations, the final test program should include:

• Low-speed startup
• Rated 1800-rpm operation
• Maximum displacement flow verification
• Pressure build-up
• C0 pressure-limiter response for PD075
• L0 LS ΔP response for PD060
• Maximum displacement-stop verification
• Case leakage
• Temperature rise
• Rotation confirmation
• Sustained-load stability

This approach makes 100% simulated working-condition testing a measurable engineering process rather than a purely marketing statement.

Technical Verification Summary

The core technical data in this page is based primarily on Parker Hannifin’s official P1/PD Medium Pressure Piston Pumps technical catalog HY28-2673-01/HPD/US. The catalog explicitly identifies PD as an open-circuit variable-displacement axial piston pump family and provides the PD045–PD140 displacement, pressure, rated-speed, flow and input-power data.

The exact configuration decoding is also directly supported by Parker’s ordering-code pages:

• PD075PS02SRS5AC00S1000000
  • PD075
  • Open circuit
  • SAE C mounting
  • SAE C keyed shaft
  • Clockwise
  • Industrial configuration
  • Fluorocarbon seal
  • C0 pressure limiter
  • Side ports
  • Adjustable maximum displacement stop
• PD060PB04SRS5BL00S1000000
  • PD060
  • Open circuit
  • ISO 125 mm / metric mounting
  • ISO/DIN 32 mm keyed shaft
  • Clockwise
  • Industrial configuration
  • Fluorocarbon seal
  • L0 load sensing + pressure limiter
  • Side ports
  • Adjustable maximum displacement stop.