Open Impeller Centrifugal Pump

The logic of the design is a trade: the efficiency advantage of a closed impeller is given up in exchange for clogging tolerance. On dirty water, process liquids carrying sediment and lines whose solids load rises seasonally, that trade makes sense. The open passage also makes cleaning and visual inspection easier.

On the stainless models in our catalog the pumped liquid temperature is -15 °C to +110 °C, rising to 120 °C with a special seal. Maximum working pressure is 8 bar. Connections are configured as DWC-N threaded or DWC-V victaulic; bodies are 304, 316 or 316L stainless steel. An intermediate coupling element that prevents the motor from being damaged by liquid leakage is standard.

For the compatibility of the stainless grade with your fluid, see our pump material selection guide and chemical compatibility chart.