DB-65 multistage pump is a centrifugal pump, which adopts horizontal
structure of 6 classes. And the shaft adopts mechanical seal without
cooling. The pump is used for transferring LPG, especially it is high
differential pressure, low NPSH and the gas of LPG up to 50% when
pumping LPG from underground tank. The suction end of the pump adopts
precompression turbine, which makes it better in use under the
requirement of low NPSH. So this pump can work under the condition of
bad suction. http://www.jiasongchina.com