R Series Rotor (Lobe) Pump

King Lai rotor (lobe) pumps are constructed fully in stainless steel including the casing and are produced with dual-wing, bi-lobe rotors for demanding applications.

They are suitable for the transfer of all types of fluids, especially viscous fluids up to 100,000 cP.


  • Available in 9 different sizes from 3/4″ to 4″ for flows up to 77m3/h
  • Stainless steel dual-wing, bi-lobes are standard in the range
  • Wetted parts in 316L stainless steel
  • Standard connections in tri-clamp (other connections available on request)
  • Pressures up to 12 bar
  • Optional extras include external pressure-relief valve bypass
  • Heating/cooling jacket available as an option
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