L3N Low Pressure range
L3 Lube Oil & Triple Screw Pumps
Leistritz screw pumps in the L3 range are three-spindle, single-volute, self-priming displacement pumps, suitable for non-abrasive lubricating fluids.
User benefits
- Fewer pump components > Cost-effective
- High efficiency > Low operating costs
- No rotor axial thrust > Low bearing load
- Impervious to aeration > Quiet, minimal vibration
- Sealless magnet drive version > Zero leakage
The most widely supplied type of screw pump ideally suited to lubrication duties and packages. Leistritz are specialists in this field and have a wide variety of designs to suit all applications – Further details below:-
L3NG technical data
Capacity Max. 700m³/h (3.100 gpm)
Differential pressure Max. 16 bar (232 psi)
Viscosity Max. 15,000 cSt
Operating temperature Max. 180° C (356° F)
- Foot, flange-mounted or pedestal pump versions available
- Predominantly used for diesel and heavy fuel oil applications in shipbuilding
L3NX technical data
Capacity Max. 45 m³/h (200 gpm)
Differential pressure Max. 16 bar (232 psi)
Viscosity 25 - max. 5,000 cSt
Operating temperature Max. 200° C (392° F)
- Corresponds to the dimensions of standardized chemical pumps (geometry in accordance with DIN EN ISO 2858)
- Significantly higher efficiency η in comparison with other pump types
- Sealless, zero leakage - Drive shaft sealing through magnetic coupling (compliant with the German Clean Air Act)
- Wetted parts made from stainless steel
L3NL technical data
Capacity Max. 24 m³/h (105 gpm)
Differential pressure Max. 16 bar (232 psi)
Viscosity Max. 100 cSt
Operating temperature Max. 80° C (176° F)
- Universal lubricating oil pump
- Standard range for quick delivery times
L3NT technical data
Capacity Max. 700 m³/h (3.100 gpm)
Differential pressure Max. 16 bar (232 psi)
Viscosity Max. 15,000 cSt
Operating temperature Max. 180° C (356° F)
- Space-saving installation in the tank
- No suction or NPSH problems
- Use as a primary lubricating oil pump for marine diesel engines
L3M Medium Pressure Range
L3MG technical data
Capacity Max. 3,000 m³/h (1.320 gpm)
Differential pressure Max. 80 bar (1.160 psi)
Viscosity Max. 10,000 cSt
Operating temperature Max. 280° C (536° F)
- Cased pumps with changeable insert
- Flange-mounting in accordance with DIN or ANSI available
- Welded version with individual flange arrangements and heating system options
L3MF technical data
Capacity Max. 120m³/h (530 gpm)
Differential pressure Max. 80 bar (1.160 psi)
Viscosity Max. 10,000 cSt
Operating temperature Max. 280° C (536° F)
- Flange-mounted pump with SAE connections
- Simple and robust design
- Suction connection turnable to 90° each way (model without circulation valve only)
L3MA technical data
Capacity Max. 276 m³/h (1.215 gpm)
Differential pressure Max. 20 bar (290 psi)
Viscosity Min. 10 cSt
Operating temperature Max. 100° C (212° F)
- Lubricating oil pump in accordance with API 676
- Drive shaft sealed with cartridge sealing (optional)
- Suitable for lubricating oil systems in accordance with API 614
L3MW technical data
Capacity Approx. 36 m³/h (158 gpm)
Delivery pressure Approx. 100 bar (1.450 psi)
Viscosity Min. 1 cSt
Operating temperature Approx. 100° C (212° F)
- Use as an emulsion pump for machine tools
- Horizontal installation or space-saving installation in the tank
L3H High Pressure Range
L3HG technical data
Capacity Max. 200 m³/h (880 gpm)
Differential pressure Max. 160 bar (2.320 psi)
Viscosity Max. 10,000 cSt
Operating temperature Max. 280° C (536° F)
- Cased pumps with changeable insert
- Flange-mounting in accordance with DIN or ANSI available
- Welded version with individual flange arrangements and heating system options
L3HF technical data
Capacity Max. 120 m³/h (530 gpm)
Differential pressure Max. 160 bar (2.320 psi)
Viscosity Max. 10,000 cSt
Operating temperature Max. 280° C (536° F)
- Flange-mounted pump with SAE connections
- Simple and robust design
- Suction connection turnable to 90° each way (design without circulation valve only)
L3V / L3U Ultra High Pressure range
L3V/L3U technical data
Capacity Max. 180 m³/h (792 gpm)
Differential pressure Max. 280 bar (4,060 psi)
Viscosity Max. 1,000 cSt
Operating temperature Max. 280° C (536° F)
- Cased pumps with changeable insert
- Flange-mounting in accordance with DIN or ANSI available
- Welded version with individual flange arrangements and heating system options
- Also available as L3VF / L3UF upon request
