Seals and bearings can be replaced from outside without the need to disassemble pump casing.Multistage centrifugal pumps suitable to the pumping of clean liquids. They are ideal for boilers feeding, for fire fighting plants, plants with surge tanks, aqueducts, irrigation systems, washing systems, hydrocarbons pumping systems, etc. In order to make servicing easier, these pumps have been built so as to enable seals replacement from outside without the need to disassemble pump casing.