L3 Series Screw Pumps Leistritz are three-spindle, single-volute, self-priming displacement pumps capable of high flow and pressure …
Leistritz screw pumps are used to supply a wide variety of media with different viscosities in a multitude of applications. Regardless of whether it’s individual pumps or complete systems – what matters are the customers’ needs.
In close collaboration with you, we always work to find a tailor-made and economical solution. Leistritz screw pumps in the L3 range are three-spindle, single-volute, self-priming displacement pumps. They are used to transport non-abrasive lubricating fluids.
Technical Advantages L3 Series Screw Pumps
Some outstanding technical parameters of the L3 Leistritz screw pump are as follows:
↗ High efficiency → low operating costs
↗ Axially balanced rotors → no axial forces to bearings
↗ Only one shaft seal → easy maintenance, low costs
↗ Availability of sealless design by magnetic drive
↗ Semi-submersible pump design available
↗ Resistant against aeration
→ low noise minimized vibration
↗ Simple design → reasonable price
Detailed specifications of each model of L3 screw pump (L3NG/L3NT, L3MF/L3MG, L3MA, L3HF/L3HG, L3V/U) Leistritz
L3N SCREW PUMPS
Leistritz screw pumps in the L3N range are three-spindle, single-volute, self-priming displacement pumps for the low-pressure range. They are used to transport non-abrasive lubricating fluids.
L3N Low-Pressure range
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 are 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 – Driveshaft 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
- The 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 SCREW PUMPS
Leistritz screw pumps in the L3M range are three-spindle, single-volute, self-priming displacement pumps for the medium-pressure range. They are used to transport non-abrasive lubricating fluids.
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 is 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)
- The lubricating oil pump in accordance with API 676
- Driveshaft 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 SCREW PUMPS
Leistritz screw pumps in the L3H range are three-spindle, single-volute, self-priming displacement pumps capable of high flow and pressure ranges. They are used to transport non-abrasive lubricating fluids.
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 is 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 SCREW PUMPS
Leistritz screw pumps in the L3V/L3U range are three-spindle, single-volute, self-priming positive displacement pumps capable of ultra-high flow and pressure ranges. They are used to pump slightly abrasive, low to high-viscosity fluids with good to poor lubricating characteristics.
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
Specification of L3 Series Screw Pumps
Performance Data
- Flow: 3-1,600 gpm
- Diff. Pressure: 2,300 psi (max)
- Viscosity: 1.2-5,000 cSt
- Temperature: 5-360° F
Scope of Supply
- Mounting: Horizontal (foot & flange) or Vertical (pedestal & deepwell)
- Bearing: Internal (product lubricated) or External (permanently grease packed)
- Seal: Packing, Lip, Single Mechanical, Mag Drive (Quench or Heating optional)
Applications L3 Series Screw Pumps
The L3 Leistritz screw pumps are designed to serve a wide variety of applications in industrial environments. The most typical can be mentioned as:
- Crude Oil
- Asphalt
- Asphalenes, Pitch & Tar
- Lube Oil
- Light & Heavy Fuel Oil
- Kedrosene
- Residuals
- Vacuum Bottoms
To get advice more suitable for your needs, contact TKP immediately to choose the right L3 Leistritz screw pump that you need!
*Technical team/consultant Thai Khuong Pumps is ready to connect to support you with information about industrial pumps in the fastest way. Contact Thai Khuong Pumps immediately, so we can better assist you.
