The liquefied petroleum gas pump is mainly used to transport liquefied petroleum gas, propylene, liquid ammonia, as well as various volatile liquids and petroleum products with similar properties. The pump is a positive displacement vane pump with advanced structure. The stator surface is composed of composite curves. Mechanical seals are used at both ends. "O" shaped seals are used for each fixed mating end face. The mating parts of rotary motion are metal corresponding nonmetals. It has the function of safe and reliable use and multiple uses of one machine.
