L3N (L3NG / L3NT / L3NB)

Leistritz L3NG / L3NT / L3NB three-screw, single-volute, self-priming positive displacement pumps for low-pressure duty, suitable for non-abrasive lubricating fluids. Flow rate up to 700 m³/h (3,100 GPM), differential pressure up to 16 bar, viscosity up to 15,000 cSt, pumping temperature up to 180 °C (L3NB with replaceable pumping cartridge: up to 33 m³/h, 20 bar, 1,000 cSt, 150 °C; suitable for LSFO with 1.4 cSt up to 10 bar). Simple, cost-effective design with axially balanced rotors, resistant against aeration; magnetic drive and semi-submersible designs available.

Key technical parameters

• Flow rate: up to 700 m³/h (3,100 GPM)
• Differential pressure: up to 16 bar (L3NB up to 20 bar)
• Fluid temperature: up to 180 °C
• Viscosity: up to 15,000 cSt
• Design: three screw, single volute, self-priming
• Installation: Horizontal, vertical or semi-submersible
• Drive: Electric motor, hydraulic motor or combustion engine
• Seal: single shaft seal; magnetic drive available

Media handled

• Liquids: Lubricating oil, Fuel oil, Diesel, Oil (mineral)
• Media properties: Low viscosity, High viscosity

Applications and industries

• Blending and cooling / circulating
• Control, export and transfer
• Fuel oil, diesel and main lube oil
• Hydraulic systems