The DB65 multistage pump, centrifugal and side channel, is designed with 6 stages, having a horizontal configuration, Shaft sealing by mechanical seal without cooling, for handling LPG (liquid gas ), the liquids involving highdifferential pressure, low NPSH conditions and aerated liquids up to 50% gas, such as pumping from underground tanks. The use of a precompression turbine at the suction end makes it possible to obtain a very small required NPSH, so that this pump can be used under very difficult suction conditions.