Types

All KÖSTER pumps embody the following features: 

• large delivery volume (from 100 l/s to 8000 l/s) 
• low delivery height (from 0.5 m to 10 m or up to 25 m on pumps with semi-axial impeller)
• axial intake and discharge flow of the pumping medium in the hydraulic system 
• worldwide recognised high quality with great attention paid to detail, details which are not readily apparent at first glance or when making a slap-dash comparison. 

Although obviously identical in many ways, KÖSTER pumps still differ in a number of aspects to make them ideal for numerous applications: 

• installation in horizontal or vertical position 
• arrangement of the drive machine, either above or below water
• direct connection of the propeller to the drive machine or drive machine and work machine separated by a coupled shaft e.g. for installation at different building levels 
• installation in upright position (allowing the pump to transmit its own weight and the water in it to the sole of the pump station) or suspended from a machine base so that the actual hydraulics are completely surrounded by the pumping medium. 
• complete with pipe housing or of open design for installation in existing  pipelines and shafts 
  
• with grease lubricated roller bearings or with low maintenance, medium lubricated ceramic or rubber shaft bearings 
• with different systems sealing the drive shaft against the pump housing or as an hermetic pump
• with extensive opportunities for lining up the pump dimensions (above the minimum dimensions) with the contractors / planners specifications or with existing structural dimensions. Propeller pumps are not suitable for mediums with high levels of contamination such as solids or a large proportion of fibres materials. For this reason they should only be operated behind a screen with appropriate gap width.