Grundfos CM 3-4A Horizontal Multistage Pump 0.5kW

The Grundfos CM 3-4A is a horizontal multistage centrifugal pump rated at 0.5kW, built around a stack of impellers on a common shaft so that pressure is developed in stages rather than in a single step.

Duties that suit it include pressure boosting, transfer from a storage tank, filtration and treatment feeds, irrigation lines and general supply where a steady head is wanted from a compact unit. It is normally installed above ground on a flooded suction or a short lift, and pairs with a pressure tank and switch or an electronic controller for automatic operation.