KSB Aktiengesellschaft launches the latest versions of its self-priming centrifugal Etaprime pumps, which are designed to offer good suction properties, also under relatively poor inlet conditions.
They are said to deliver even if the inlet pressure is low.
At negative inlet pressure, for example, the pumps still manage up to nine meters suction lift. Fluids with entrained gas can also be handled, while it is not necessary to install a foot valve.
The pump sets are designed for handling fluids of temperatures between – 30 °C and + 90 °C.
Their maximum head is 105 m and the flow rate can come up to 180 m3/h.
The type series of the new generation comprises 28 sizes, which can be driven by either two-pole or four-pole IE3 motors.
The pumps are available in compact close-coupled design (Etaprime B) or as classic baseplate-coupling-motor versions (Etaprime L).
All mating dimensions are fully compatible with those of the previous generation.
Depending on the application, there a choice between oil-lubricated rolling element bearings and those grease-packed for life.
It is also possible to provide connections for temperature or shock pulse sensors on the bearing brackets.
Cast iron and stainless steel materials are available, which make the new type series suitable for a wider application range, rather than for merely handling water.
