L3H (L3HF / L3HG)

Leistritz L3HF / L3HG three-screw, single-volute, self-priming positive displacement pumps for high-pressure duty, suitable for non-abrasive lubricating fluids. Flow rate up to 120 m³/h (HF) or 200 m³/h (HG), differential pressure up to 160 bar (2,350 psi), viscosity up to 10,000 cSt, pumping temperature up to 280 °C. Interchangeable casing insert (HG), axially balanced rotors, a single shaft seal and resistance against aeration; magnetic drive and semi-submersible designs available.

Key technical parameters

• Flow rate: up to 200 m³/h (HG; HF up to 120 m³/h)
• Differential pressure: up to 160 bar
• Fluid temperature: up to 280 °C
• Viscosity: up to 10,000 cSt
• Design: three screw, single volute, self-priming; interchangeable casing insert (HG)
• 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

• Fuel oil injection
• Hydraulic, jacking and seal oil
• Cooling / circulating, export and transfer
• Blending