Complete solutions for all pump requirements

Vacuum & Air

Pressure Pumps

Screw Pumps

With the modular structure of our pump ranges, we are able to fulfill a wide range of different pumping tasks. Our pumps are two, three or five-spindle, single or double-volute, self-priming displacement pumps for the low / medium or high-pressure range. They are used to pump a wide variety of different fluids with various lubrication properties.

Leistritz Screw Pumps

L2

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Leistritz screw pumps in the L2 range are twin-screw, single-volute, self-priming positive displacement pumps for the low-pressure range. They are used to pump slightly aggressive, slightly abrasive, low to high-viscosity fluids with good to poor lubrication properties.

Features:

  • High efficiency > Low operating costs
  • Only one shaft seal > low-maintenance
  • Suitable for short dry runs > Maximum process reliability
  • Radial bearing brushes > Long service life

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L3

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.

Features:

  • Fewer pump components > Cost-effective
  • High efficiency > Low operating costs
  • No rotor axial thrust > Low bearing load
  • Impervious to aeration > Quiet, minimal vibration

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L4

Leistritz screw pumps in the L4 range are twin-screw, double-volute, self-priming positive displacement pumps. They are used to pump aggressive / non-aggressive, abrasive / non-abrasive low to high-viscosity fluids with lubrication / non-lubrication properties.

Features:

  • Spindles (shaft/rotors) manufactured in one piece > Low rotor deflection and non-contacting design
  • Arrow-toothed gears > Reduced noise level and low-maintenance
  • Replaceable insert > Low-maintenance
  • Special spindle geometry > Minimized pulsation and optimized NPSH value
  • Wide range of shaft seals > Customer-specific seals (single-acting, double-acting, API plans)

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L5

Capacity Max. 1,700m³/h (7.500 gpm) Differential pressure Max. 10 bar (145 psi) Viscosity Max. 100,000 cSt Operating temperature Max. 280° C (536° F)
Capacity Max. 1,700m³/h (7.500 gpm) Differential pressure Max. 10 bar (145 psi) Viscosity Max. 100,000 cSt Operating temperature Max. 280° C (536° F)
Capacity Max. 1,700m³/h (7.500 gpm) Differential pressure Max. 10 bar (145 psi) Viscosity Max. 100,000 cSt Operating temperature Max. 280° C (536° F)
Capacity Max. 1,700m³/h (7.500 gpm) Differential pressure Max. 10 bar (145 psi) Viscosity Max. 100,000 cSt Operating temperature Max. 280° C (536° F)
Capacity Max. 1,700m³/h (7.500 gpm) Differential pressure Max. 10 bar (145 psi) Viscosity Max. 100,000 cSt Operating temperature Max. 280° C (536° F)
Capacity Max. 1,700m³/h (7.500 gpm) Differential pressure Max. 10 bar (145 psi) Viscosity Max. 100,000 cSt Operating temperature Max. 280° C (536° F)

Leistritz screw pumps in the L5 range are five-screw, single-volute, self-priming displacement pumps for low-pressure duty, suitable for transport of aggressive, light abrasive, low or high-viscosity fluids with good or poor lubricity.

Features:

  • Low axial flow velocity > Very good priming
  • High efficiency > Low operating costs
  • Only one shaft seal > Low-maintenance
  • Axially balanced rotors > No axial forces to bearings

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