G55V Series Hydraulic Screw Pump Replacement | G33C G38C G47C G55V High Pressure Gear Pump

Genlu Hydraulic proudly introduces our industrial-grade G Series high-pressure screw/gear pumps. Fully engineered to match global industry standards, this series provides a high-performance, seamless drop-in replacement for industrial hydraulic and lubrication systems. We specifically highlight our supply capability for precision-tuned units such as the G28V, G33C, G38C, G47C, G55C, and the G55V063FSAEBT15DLV.

The G series is renowned for elite pressure stability, ultra-low flow pulsation, and long-term durability. Genlu guarantees 100% Drop-in Interchangeability across mounting dimensions, port configurations, shaft specs, and pressure curves compared to original G Series assemblies. Every pump undergoes 100% full-pressure load and volumetric-efficiency verification on our digital test benches, certifying rugged, quiet, and consistent performance for your most critical industrial applications.

Technical Specifications 

• Product Series: G Series High-Pressure Screw/Gear Pump

• Representative Models: G28V, G33C, G38C, G47C, G55C, G55V063FSAEBT15DLV

• Displacement Range: 28 cc/rev to 63 cc/rev

• Nominal Operating Pressure: 210 – 250 bar

• Peak Transient Pressure: 280 bar

• Max Rated Speed: 1500 – 3000 rpm

• Construction Type: Screw / Gear Composite

• Shaft Style: Involute Splined / Keyed

• Port Connections: SAE Flange Standard

Key Technical Advantages:

• Ultra-Low Pressure Pulsation: Optimized screw-meshing geometry ensures continuous, smooth fluid delivery, drastically reducing vibration and noise in piping systems, ideal for high-precision equipment.

• Elite Pressure-Seal Integrity: Manufactured from high-strength specialty alloys with precision heat-treatment, these pumps maintain peak volumetric efficiency even under 250 bar continuous pressure.

• Superior Wear Resistance: Precision-ground bearings and rotating pairs, paired with corrosion-resistant surface treatments, maintain operational stability even when handling low-viscosity hydraulic fluids.

• True Drop-in Compatibility: Fully compliant with original mounting interfaces, allowing for a seamless “plug-and-play” replacement without requiring modifications to existing manifolds or brackets.

Application Areas:

• Industrial Lubrication: Lubrication loops for large mechanical gearboxes and machine-tool spindles.

• High-Pressure Power Units (HPUs): Industrial hydraulic stations and injection molding circulation loops.

• Fluid Transfer: High-pressure fuel delivery and specialized industrial fluid transfer systems.

Expert Maintenance Tips:

• Suction-Side Safeguard: G-series pumps are highly sensitive to suction-side vacuum. Never operate with a restricted intake line, as this will trigger severe vibration and potential damage to the rotor surfaces.

• System Purging: After initial installation or oil changes, bleed all trapped air via the pump’s vent port. Air ingestion causes erratic pressure spikes and damages seals.

• Strict Filtration: Maintain ISO 4406 18/16/13 standards. Utilize a 20μm – 25μm filter on the suction side to prevent debris from causing meshing interference within the pump chamber.