... Pump Advantages--The gasoline engine pump is a kind of self-priming centrifugal pump. The pump has the special structure. ... to flow. --SGP series, SGF series pump: high efficiency, good self-priming performance, small volume, easy to install and use. They ... and high pressure flushing, etc. --SGP self-suction pump type is nationalization of self-priming centrifugal pumps originating from the latest ...