Product Overview
The 1L015DH09S / 1L05DH09S / 1L075D10R are aluminum external gear pumps from the Spanish Roquet L0 series. This series belongs to the Group 1 compact platform, with displacements ranging from 1 to 6.63 cm³/rev.
The Roquet L0 series gear pumps feature a high-strength aluminum alloy body with optimized gear tooth profiles, delivering excellent efficiency and low-noise operation while maintaining lightweight construction. All end covers are manufactured from cast iron (from Roquet’s own foundry), effectively reducing noise and extending service life.
Every unit is manufactured to original equipment specifications, ensuring 100% drop-in interchangeability with genuine Roquet L0 series pumps without any system modifications. Each pump undergoes rigorous 100% simulated duty-cycle testing on dedicated test benches to validate pressure-flow-efficiency performance curves.
Brand Disclaimer: This product is a high-quality compatible replacement engineered for full interchangeability with Roquet original equipment. All Roquet brand names and model codes are referenced solely to indicate compatibility and interchangeability. This product is manufactured by an independent producer and is not an original Roquet product.
Technical Specifications
Roquet L0 Series General Specifications
Brand Series: Roquet L0 Series (Group 1)
Product Type: Fixed Displacement External Gear Pump
Body Material: High-strength aluminum alloy
End Cover Material: Cast iron
Displacement Range: 1 – 6.63 cm³/rev
Flow Range (@1500 rpm) : 1.5 – 10 L/min
Continuous Operating Pressure: 200 bar
Peak Pressure: 250 bar
Maximum Speed: 3,600 rpm
Minimum Speed: 600 rpm
Hydraulic Fluid: Mineral oil
Operating Temperature Range: -20°C to +80°C
1L015DH09S
1L05DH09S
1L075D10R
Key Technical Advantages
1. Aluminum Body with Cast Iron End Covers – Optimized Lightweight & Noise Reduction
The high-strength aluminum alloy body combined with cast iron end covers (from Roquet’s own foundry) delivers lightweight construction with superior rigidity and noise reduction. The cast iron end covers effectively absorb vibration, reduce operating noise, and significantly extend service life.
2. Optimized Gear Tooth Profiles – Low-Noise Operation
Roquet operates a dedicated anechoic chamber test facility, with gear tooth profiles specifically optimized to reduce noise levels. The L0 series delivers excellent noise performance among同类 products—particularly suitable for noise-sensitive working environments.
3. Compact Design – High Power Density
The L0 series features a compact European-style design with displacements from 1 to 6.63 cm³/rev and flow rates of 1.5 to 10 L/min (@1500 rpm) . Delivers adequate hydraulic power output within minimal installation space—ideal for space-constrained small machinery applications.
4. Broad Speed Operating Range
Supports a wide speed range of 600 to 3,600 rpm, maintaining stable flow characteristics whether operating at low-speed precision control or high-speed continuous duty.
5. Multi-Pump Configuration Capability
The L0 series supports multiple-pump串联组合 configurations, allowing flexible system expansion to tandem or multi-pump assemblies as required.
6. 100% Simulated Duty-Cycle Testing
Every pump is 100% tested on dedicated hydraulic test benches under simulated real-world operating conditions—validating pressure-flow characteristics and efficiency curves at rated pressure (200 bar), peak pressure (250 bar), and full speed range—ensuring zero-defect, plug-and-play performance upon installation.
Application Areas
Agricultural Machinery: Small tractor auxiliary hydraulic systems, implement hitch control
Industrial Machinery: Machine tool hydraulic systems, food machinery hydraulics
Material Handling Equipment: Forklifts, lift platform hydraulic systems
Mobile Hydraulics: Vehicle-mounted auxiliary hydraulics, construction equipment auxiliary circuits
Hydraulic Power Units (HPU) : Compact hydraulic power stations
Expert Maintenance Tips
1. Fluid Cleanliness Control
Maintain system fluid cleanliness to ISO 4406 19/17/14 or better. Install a ≤10 μm absolute filtration filter upstream of the inlet port to prevent particle contamination from damaging precision gear pairs.
2. Inlet Line Requirements
Keep suction lines short and straight with adequate diameter—not less than the port size. Recommended suction line flow velocity: ≤1.5 m/s to prevent cavitation from excessive inlet resistance. Inlet pressure must be maintained between 0.8 – 2.0 bar (absolute) .
3. Coupling Alignment Precision
Ensure pump shaft-to-drive shaft coaxiality deviation ≤0.05 mm and angular deviation ≤0.5° during installation. Flexible couplings are strongly recommended. If the drive involves sprockets or V-belt pulleys, an independent outboard bearing MUST be installed to protect pump shaft bearings.
4. First-Start Priming Procedure
Before initial startup, prime the pump by bleeding air through the drain port or a loosened outlet fitting. Perform 2–3 jog starts with the outlet open (no load) until oil fills the pump cavity without air bubbles, then connect the load circuit for full operation.
5. Rotation Direction Confirmation
The R suffix indicates right-hand (clockwise) rotation. Always verify that the drive motor/engine rotation matches the pump before installation. Specify left-hand configuration when ordering if required.
