The Interpump 59SS Series AISI 316L stainless steel plunger pumps are expressly designed for heavy duty use in applications such as desalinisation, reverse osmosis, chemical injection, deionized "demin" water, pharmaceuticals, food industry and other aggressive environments.

They feature special energised pressure packings, wetted parts in stainless steel, solid ceramic plungers, and oil-bath mechanical parts with splash lubrication.

Design Update Q1 2026

Interpump have redesigned the head of the 59SS Series pumps with the introduction of valve covers rather than individual valve caps. These changes further enhance their performance in demanding applications.