GP2-6RFBCHSGAN ARGO-HYTOS Gear Pump 6.02cc

Product Overview

The GP3-34LRLCLSMIN is an ARGO-HYTOS GP3 Series high-performance fixed-displacement external gear pump with an actual displacement of 34.05 cm³/rev. The official technical datasheet specifies a nominal speed of 1500 rpm, minimum speed of 350 rpm, and maximum speed of 3000 rpm for the 34 cm³ configuration.

At 1500 rpm, the published nominal flow is 47.5 L/min, while maximum flow reaches 100.6 L/min at the specified maximum-speed condition. This makes the GP3-34 suitable for higher-flow industrial hydraulic systems where a compact fixed-displacement pump is required.

The 34 cm³ configuration is rated for 290 bar continuous pressure, 310 bar short-duration pressure, and 320 bar peak pressure. ARGO-HYTOS explicitly distinguishes these pressure levels by allowable operating duration.

The L code identifies counter-clockwise rotation, while RL, CL, S, and N define the relevant flange, shaft, port-orientation and NBR sealing configuration.

Technical Specifications

• Model: GP3-34LRLCLSMIN
• Brand: ARGO-HYTOS
• Series: GP3 High Performance
• Pump Type: Fixed-displacement external gear pump
• Actual Displacement: 34.05 cm³/rev
• Nominal Speed: 1500 rpm
• Minimum Speed: 350 rpm
• Maximum Speed: 3000 rpm
• Maximum Continuous Pressure: 290 bar
• Maximum Short-Time Pressure: 310 bar, maximum 20 s
• Peak Pressure: 320 bar
• Nominal Flow: 47.5 L/min at 1500 rpm
• Maximum Flow: 100.6 L/min at 3000 rpm
• Nominal Input Power: 29.0 kW
• Maximum Input Power: 62.1 kW
• Control: Fixed displacement, mechanical
• Rotation: Counter-clockwise / L
• Flange Code: RL
• Shaft Code: CL
• Port Orientation: S
• Seal: NBR / N
• Housing Material: High-quality aluminium alloy
• Volumetric Efficiency: 92–98%
• Mechanical Efficiency: Approx. 85%
• Hydraulic Fluid: HL/HLP hydraulic oils according to DIN 51524
• Viscosity Range: 20–80 mm²/s, with approximately 1200 mm²/s permitted for cold start
• NBR Fluid Temperature: −20°C to +80°C
• Fluid Cleanliness at ≥200 bar: ISO 4406 20/17/14 maximum reference
• Weight: Not published for the GP3-34 configuration in the cited technical table.

Key Technical Advantages

1. 34.05 cm³/rev High-Flow Capacity

The 34.05 cm³/rev displacement provides the flow capacity required for larger industrial hydraulic systems. Official performance data specifies 47.5 L/min at 1500 rpm and up to 100.6 L/min under the published maximum-speed condition.

2. 290 Bar Continuous Pressure Capability

The GP3-34 configuration is rated for 290 bar continuous pressure, with 310 bar available for short-duration operation and 320 bar as a transient peak.

3. Broad Speed Range

The specified 350–3000 rpm range provides flexibility for mechanical and variable-speed drive applications.

4. Axial Play Compensation

Axial play compensation helps control internal clearances and leakage under hydraulic load. ARGO-HYTOS specifies volumetric efficiency up to 98% across the GP3 platform.

5. High-Quality Aluminium Alloy Housing

The GP3 platform uses high-quality aluminium alloys and is designed for low operating noise, high reliability and long service life.

6. Multiple International Mounting Standards

The GP3 family supports SAE, ISO and DIN mounting interfaces, allowing different shaft and flange configurations to be matched to existing machinery.

Application Areas

Typical applications include:

• Industrial hydraulic power units
• Construction machinery
• Agricultural machinery
• Mobile hydraulic equipment
• Material-handling systems
• Lifting equipment
• High-flow industrial hydraulics
• Hydraulic test systems
• Auxiliary hydraulic circuits
• Heavy-duty industrial machinery

Expert Maintenance Tips

Verify the counter-clockwise rotation specified by the L code before commissioning. ARGO-HYTOS states that the pump can only be operated in the specified direction.

At 3000 rpm, the pump can produce approximately 100.6 L/min under the published maximum-flow condition, so suction piping, filter capacity and reservoir conditions must be designed accordingly.

Do not use 320 bar as continuous operating pressure. The correct engineering limits are 290 bar continuous, 310 bar short-duration and 320 bar transient peak.

For high-pressure duty, maintain contamination at or better than the published ISO 4406 20/17/14 reference.