Self-priming rotary pumps with flexible impeller.

The RF-S models come with two bearings and a Roten 7K type mechanical seal. Production materials: Stainless steel AAISI-316, cast iron GG-20, cast bronze RG10. The impellers are made from neoprene or nitrile depending on the liquid to be pumped.

They are used to move viscous liquids, which cannot be handled by centrifugal pumps, and liquids with a high abrasion content that require hardened contact surfaces for the rotating elements.