GP1-0.8L-ACKG-AGBPA-N ARGO-HYTOS Gear Pump 280Bar

Product Overview

The GP1-0.8L-ACKG-AGBPA-N is an ARGO-HYTOS GP1 High Performance fixed-displacement external gear pump designed for compact hydraulic circuits requiring controlled low flow and high pressure capability.

According to the official ARGO-HYTOS GP1 technical datasheet, the 0.8 cm³ configuration has an actual geometric displacement of 0.855 cm³/rev. At the nominal speed of 1500 rpm, the published nominal flow is 1.07 L/min. The configuration supports speeds from 800 to 5000 rpm.

The pressure ratings are clearly differentiated: 280 bar maximum continuous pressure, 300 bar maximum short-time pressure, and 310 bar peak pressure. ARGO-HYTOS defines 300 bar as a short-duration pressure of up to 20 seconds, while 310 bar is a transient peak caused by sudden operating-condition changes.

The GP1 architecture incorporates axial play compensation, high-quality aluminium-alloy construction and optimized internal sealing. ARGO-HYTOS specifies volumetric efficiency from 92% to 98%, together with low noise, high reliability and long service life.

For replacement applications, the complete GP1-0.8L-ACKG-AGBPA-N configuration should be matched rather than selecting only the GP1-0.8 displacement class. Dimensional and functional compatibility should include rotation, flange, shaft, port orientation and sealing configuration.

Technical Specifications

• Model: GP1-0.8L-ACKG-AGBPA-N
• Brand: ARGO-HYTOS
• Series: GP1 High Performance Gear Pump
• Pump Type: Fixed-displacement external gear pump
• Nominal Displacement: 0.8 cm³/rev class
• Actual Geometric Displacement: 0.855 cm³/rev
• Nominal Speed: 1500 rpm
• Minimum Speed: 800 rpm
• Maximum Speed: 5000 rpm
• Maximum Continuous Pressure: 280 bar
• Maximum Short-Time Pressure: 300 bar, max. 20 s
• Peak Pressure: 310 bar
• Nominal Flow: 1.07 L/min at 1500 rpm
• Maximum Flow: 3.92 L/min at 5000 rpm under the published maximum-pressure condition
• Nominal Input Power: 0.70 kW
• Maximum Input Power: 2.51 kW
• Control Method: Fixed displacement, mechanical
• Rotation: Counter-clockwise / L
• Housing Material: High-quality aluminium alloy
• Volumetric Efficiency: 92–98%
• Mechanical Efficiency: Approx. 85%
• Hydraulic Fluid: HL/HLP hydraulic oils according to DIN 51524
• Recommended Viscosity: 20–80 mm²/s
• Cold-Start Viscosity: Up to approximately 1200 mm²/s
• NBR Fluid Temperature: −20°C to +80°C
• FPM Fluid Temperature: −20°C to +120°C for the FPM sealing option; this is not assigned to the requested model without configuration verification.
• Inlet Pressure: −0.3 to +0.5 bar
• Fluid Cleanliness: ISO 4406 21/18/15 at ≤200 bar and 20/17/14 at ≥200 bar
• Weight: Approx. 0.82 kg
• Mounting Position: Any position

Key Technical Advantages

1. Axial Play Compensation

The GP1 uses pressure-assisted axial play compensation to control the clearance between the gears and floating bushings. This design reduces internal leakage and contributes to the specified volumetric efficiency range of 92–98%.

2. Ultra-Compact 0.855 cm³/rev Displacement

With an actual displacement of 0.855 cm³/rev, the GP1-0.8 is suitable for compact circuits requiring relatively low flow. Its 5000 rpm maximum speed allows additional flow capacity from a very small pump envelope.

At 5000 rpm, the theoretical geometric flow is:

0.855 × 5000 / 1000 = 4.275 L/min

The official maximum flow is 3.92 L/min, reflecting actual volumetric losses under the specified test condition.

3. 280 Bar Continuous Pressure Capability

The 0.8 cm³ GP1 configuration is rated for 280 bar maximum continuous pressure, making it suitable for compact high-pressure auxiliary hydraulic circuits.

4. 310 Bar Transient Peak Capability

The published 310 bar peak pressure is a transient limit rather than a continuous operating rating. System pressure control should therefore be designed around the 280 bar continuous limit.

5. High-Quality Aluminium Alloy Housing

ARGO-HYTOS specifies high-quality aluminium alloys for GP1 pump construction. This is particularly beneficial for compact mobile or industrial hydraulic systems where weight and installation volume are important design factors.

6. Low Noise and Long Service Life

ARGO-HYTOS identifies low noise, high operational reliability and long service life as major GP1 characteristics, with a published service-life reference of approximately 3000 operating hours.

Application Areas

Typical applications include:

• Compact hydraulic power units
• Small industrial hydraulic stations
• Machine-tool auxiliary hydraulics
• Industrial automation equipment
• Compact construction machinery
• Agricultural machinery auxiliary circuits
• Material-handling equipment
• Hydraulic clamping systems
• Hydraulic lubrication systems
• Auxiliary control circuits
• Low-flow high-pressure hydraulic systems
• Mobile hydraulic equipment

The ARGO-HYTOS GP1 platform supports international SAE, ISO and DIN flange standards for integration into different hydraulic machines and power units.

Expert Maintenance Tips

1. Verify Rotation Before Commissioning

The L configuration indicates counter-clockwise rotation. ARGO-HYTOS specifies that rotation must be determined from the drive-shaft side and that the pump may only operate in the specified direction.

2. Control Inlet Pressure

The published inlet-pressure range is −0.3 to +0.5 bar. Keep the suction path as unrestricted as possible and prevent clogged filters, undersized piping and air leakage.

3. Treat 5000 rpm as a Rated Limit, Not a Universal Operating Point

The maximum speed is 5000 rpm, but actual allowable speed should always be assessed together with viscosity, pressure, inlet conditions and oil temperature.

4. Respect the Three Pressure Levels

• 280 bar: maximum continuous operating pressure
• 300 bar: maximum pressure, max. 20 s
• 310 bar: transient peak pressure

These ratings are not interchangeable and must be treated differently during hydraulic-system design.

5. Maintain Proper Fluid Viscosity

The recommended operating viscosity is 20–80 mm²/s, with approximately 1200 mm²/s permitted for cold starting. High-viscosity cold starts should be performed cautiously to avoid excessive drive torque and inlet-side loading.

6. Maintain Clean Hydraulic Fluid

At pressures of 200 bar and above, ARGO-HYTOS specifies an ISO 4406 contamination reference of 20/17/14. Filter differential pressure and hydraulic-fluid contamination should be included in preventive maintenance.

7. Match the Complete Configuration for Replacement

For genuine replacement compatibility, verify:

GP1-0.8L-ACKG-AGBPA-N

together with:

Displacement + rotation + flange + shaft + port orientation + seal + mounting dimensions

This complete-code approach is essential for reliable in-place interchangeability.