PVH074R01AA10A250000001001AE010A Vickers Pump

Product Overview

The PVH074R01AA10A250000001001AE010A is a Vickers PVH74 variable displacement axial piston pump for open-circuit hydraulic systems, currently supported through the Danfoss Power Solutions / Vickers by Danfoss product portfolio.

Danfoss PowerSource identifies this exact model as a Vickers pressure-compensated open-circuit piston pump, assembly number 02-315214, with 73.7 cm³/rev displacement, pressure-compensator control and a 246–254 bar factory compensator setting.

The related model PVH074R01AA10A250000002001AE010A is cross-referenced in an OEM Vickers/Eaton model-code bulletin to PVH74QIC-RSF-1S-11-C25-31. The primary configuration difference is the maximum-displacement option: 001 is standard displacement, while 002 provides an adjustable maximum-displacement stop.

Both configurations use the PVH74 platform, Q250 valve plate and pressure-compensator architecture. Our replacement engineering process is based on the complete Model Code and focuses on in-place interchangeability, followed by 100% simulated working-condition testing.

Technical Specifications

PVH074R01AA10A250000001001AE010A

• Manufacturer / Brand: Vickers by Danfoss
• Series: PVH
• Assembly Number: 02-315214
• Pump Type: Variable displacement axial piston pump
• Circuit: Open circuit
• Maximum Displacement: 73.7 cm³/rev (4.50 in³/rev)
• Rated Pressure: 250 bar
• Maximum Pressure: 280 bar for the PVH74 QI pressure category
• Reference Rated Speed: 1,500 rpm
• Maximum Speed: 1,800 rpm at 1.0 bar absolute inlet pressure
• Control: Pressure Compensator
• Pressure Compensator Setting: 246–254 bar
• Maximum Displacement Option: 1 = standard displacement
• Rotation: R = right-hand / clockwise
• Front Mounting: 01 = SAE J744 C, 4-bolt
• Input Shaft: 31.8 mm (1.25 in) straight keyed shaft, 56.0 mm shaft extension
• Main Ports: AA side-port configuration
• Suction Port: 2.000 in SAE 4-bolt split flange, Code 61
• Pressure Port: 1.000 in SAE 4-bolt split flange, Code 61
• Drain Port: 0.750-16 UNF-2B SAE O-ring port, bottom
• Shaft Seal: Single, one-way fluorocarbon seal
• Valve Plate: Q250
• Case-to-Inlet Check Valve: None
• Overall Dimensions: Approximately 362.5 × 224.0 × 269.0 mm
• Weight: Not independently specified on the current official PowerSource record.

PVH074R01AA10A250000002001AE010A

• Manufacturer / Brand: Vickers by Danfoss
• OEM Assembly Number: 02-345569
• Legacy Vickers Model: PVH74QIC-RSF-1S-11-C25-31
• Pump Type: Variable displacement axial piston pump
• Circuit: Open circuit
• Maximum Displacement: 73.7 cm³/rev
• Rated Pressure: 250 bar
• Maximum Pressure: 280 bar
• Reference Rated Speed: 1,500 rpm
• Maximum Speed: 1,800 rpm under the specified inlet-pressure condition
• Control: Pressure Compensator
• Pressure Setting: C25, approximately 250 bar; adjustment range is within the documented 140–280 bar compensator range
• Maximum Displacement Option: 2 = adjustable maximum displacement stop, factory set at maximum
• Rotation: Right-hand / clockwise
• Front Mounting: SAE C, 4-bolt
• Input Shaft: 31.8 mm straight keyed shaft
• Main Ports: Side ports
• Shaft Seal: Single, one-way fluorocarbon
• Valve Plate: Q250
• Case-to-Inlet Check Valve: None
• Design: 11
• Weight: Not independently verified from the official public record.

Key Technical Advantages

1. 73.7 cm³/rev Variable Axial-Piston Architecture

The PVH74 uses a variable-displacement swash-plate axial-piston design. The pump can reduce displacement as the pressure-compensator reaches its setting, rather than continuing to supply full displacement at maximum pressure.

2. Pressure-Compensated Control

The exact 001 configuration uses an A pressure compensator, with a documented C25-class setting around 250 bar and an adjustment range covering 140–280 bar for the control family.

3. 250 / 280 Bar Pressure Category

The official PVH74/81 Parts Manual describes the QI industrial application as a 1500–1800 rpm, 250/280 bar configuration. This distinction should be preserved in product specifications instead of presenting 280 bar as an unrestricted continuous operating target.

4. Controlled 1500–1800 rpm Industrial Operation

For PVH074, published performance data gives approximately 1,500 rpm at the specified inlet-vacuum condition and up to 1,800 rpm at 1.0 bar absolute inlet pressure. Actual allowable speed therefore depends on the suction condition rather than being a single unconditional number.

5. Q250 Valve Plate Configuration

The exact Danfoss configuration identifies AE as a Q250 valve plate with no case-to-inlet check valve. Maintaining the correct valve-plate configuration is important because port timing and rotating-group matching directly affect flow behavior, efficiency and internal leakage.

6. Adjustable Maximum Displacement on the 002 Version

The 002 version provides an adjustable maximum-volume stop. Danfoss documentation for the corresponding configuration identifies the feature as adjustable maximum displacement, set at maximum at delivery.

7. SAE C Mounting and Straight Keyed Drive

The 01 shaft/mounting configuration uses an SAE J744 C four-bolt flange and a 31.8 mm straight keyed shaft with a 56 mm extension. This provides a clearly defined mechanical interface for replacement engineering.

8. Precision Rotating Group

Long-term PVH performance depends on the cylinder block, pistons, slippers, valve plate, swash plate, bearings and seals. For replacement manufacturing, dimensional interchangeability must therefore be supported by controlled assembly, contamination control and hydraulic bench testing.

Application Areas

The PVH74 platform is intended for open-circuit mobile and industrial hydraulic applications. The QI configuration is specifically described for quieter industrial operation within the documented 1500–1800 rpm range.

Typical applications include:

• Construction equipment auxiliary hydraulics
• Forklift hydraulic systems
• Mobile hydraulic power units
• Industrial hydraulic power packs
• Machine tools
• Plastic-processing and forming machinery
• Hydraulic clamping systems
• Commercial-vehicle hydraulic systems
• Lifting and material-handling equipment
• Multi-actuator open-circuit hydraulic systems

Final compatibility must always be checked against the complete model code, shaft, flange, porting, pressure setting and drive speed.

Expert Maintenance Tips

1. Prime and Bleed the Pump Before Commissioning

The Vickers by Danfoss Parts Manual states that, after start-up, the pump should prime within a few seconds. Failure to prime requires checking for air leaks in the inlet circuit and ensuring trapped air can escape from the pump outlet.

2. Protect the Suction Circuit

Because PVH074 maximum speed is tied to inlet pressure, high-speed operation should always be evaluated together with:

• Reservoir level
• Suction-pipe diameter
• Filter restriction
• Air ingress
• Actual pump speed
• Inlet absolute pressure

3. Do Not Arbitrarily Increase the Compensator Setting

The PVH74 C25 configuration is intended for approximately 250 bar, with the control family documented over a 140–280 bar range. Pressure should be adjusted to the actual hydraulic-circuit requirements rather than simply increasing the setting to obtain more output.

4. Do Not Interchange 001 and 002 Without Checking the Maximum-Volume Function

Although both configurations are PVH074 pumps with 73.7 cm³/rev nominal maximum displacement, 001 is the standard-displacement configuration while 002 incorporates an adjustable maximum-displacement stop.

5. Inspect the Drain and Shaft-Seal Arrangement

The verified 001 configuration uses a bottom-mounted 0.750-16 UNF-2B SAE O-ring drain connection and a single one-way fluorocarbon shaft seal. These interfaces should be inspected during every major pump service.

6. Maintain Hydraulic Cleanliness

The PVH rotating group contains close-tolerance hydraulic interfaces. Contamination introduced through hoses, oil filling, filters or reservoirs can accelerate valve-plate, cylinder-block and piston/slipper wear.

7. Test Replacement Pumps Under Simulated Load

Recommended replacement verification includes:

• Flow at specified rpm
• 250 bar pressure test
• Pressure-compensator response
• Maximum-displacement verification
• Internal leakage
• Temperature rise
• Noise
• Rotation direction

This is the practical basis of 100% simulated working-condition testing, rather than simple no-load rotation.

Engineering Verification Summary

OEM / Brand: Vickers by Danfoss
Series: PVH
Pump Type: Variable Displacement Axial Piston Pump
Circuit: Open Circuit

PVH074R01AA10A250000001001AE010A

• Assembly No.: 02-315214
• Displacement: 73.7 cm³/rev
• Rated Pressure: 250 bar
• Maximum Pressure: 280 bar
• Reference Speed: 1500 rpm
• Maximum Listed Speed: 1800 rpm at 1.0 bar absolute inlet pressure
• Control: Pressure Compensator
• Compensator Setting: 246–254 bar
• Maximum Displacement: Standard
• Rotation: Clockwise
• Mounting: SAE C, 4-bolt
• Shaft: 31.8 mm straight keyed
• Valve Plate: Q250
• Shaft Seal: Fluorocarbon.

PVH074R01AA10A250000002001AE010A

• Assembly No.: 02-345569
• Legacy Vickers Model: PVH74QIC-RSF-1S-11-C25-31
• Displacement: 73.7 cm³/rev
• Rated Pressure: 250 bar
• Maximum Pressure: 280 bar
• Reference Speed: 1500 rpm
• Maximum Listed Speed: 1800 rpm under applicable inlet-pressure conditions
• Control: Pressure Compensator
• Maximum Displacement: Adjustable maximum-volume stop
• Rotation: Clockwise
• Mounting: SAE C, 4-bolt
• Valve Plate: Q250
• Design: 11.