The name of this pump refers to the bilge being the lowest compartment of a ship and, less often, the water that collects in this area.
The pump is used in underground construction and shipbuilding. It is optimised for the removal of large volumes.
The types of pump most frequently used as bilge pumps are tubular casing pumps (e.g. mixed flow pumps) with flow rates of 3000 to 30,000 m3/h, and many large volute casing pumps with concrete casings and flow rates of 30,000 to 50,000 m3/h are used in construction and repair docks for supertankers.