3RP series stainless steel rotary lobe pumps are volumetric pumps with strong self-priming ability, high efficiency and long life. It is suitable for conveying suspensions containing soft solid particles, corrosive media and suspensions. The temperature range of conveying medium is -30~130℃, and the viscosity range is 30cst to 1.0×105cst. Stainless steel is used for the parts contacting with medium. The rotational speed can be adjusted according to the physical properties of the conveying medium.