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SLR Rotary Lobe Pump

  • Overview
  • Features & Benefits
  • Specifications
  • Other Info
  • Case Studies


The SLR pump is a positive displacement sanitary construction rotary lobe suitable for use in the dairy, food-processing, beverage, cosmetic, pharmaceutical and fine chemical industries. The SLR series is the ideal choice for pumping all kinds of fluids, including low or high viscosity liquids.  Products containing fragile solids can be pumped without damage thanks to the specially designed lobes.

Design and Features

  • Horizontal support
  • Bare-shaft construction
  • Stainless steel casing and lobes
  • Tri-lobe rotors
  • Sanitary design of the attachment of the rotors
  • Sanitary mechanical seals
  • Easy cleaning and maintenance
  • Standard connections: DIN 11851


  • Parts in contact with the product: AISI 316L
  • Bearing support: GG 25
  • Gaskets: EPDM according to FDA 177.2600
  • Mechanical seal: SiC/C/EPDM
  • Internal surface finish: Ra ≤ 0.8 µm
  • External surface finish: bright polish


  • Mechanical seals: SiC/SiC or TuC/SiC
  • Cooled mechanical seal, pressurised double mechanical seal, lip seal or O-ring seal
  • Gaskets in FPM and PTFE
  • Relief valve on the front cover or external by-pass
  • Bi-wing lobes
  • Heating chamber
  • Isolation can
  • Vertical support
  • Rectangular nozzle
  • Various kinds of drives and protections (gearbox drive with optional frequency converter, pulley/mechanical drive speed selector)
  • Trolley and/or control panel
  • Connections: clamp, SMS, RJT, etc
  • ATEX version available
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