... , their working principles and installation sizes are same.Self Priming Gear Oil Pump for diesel oil, kerosene, gasoline, lubricant liquid ... oil, kerosene, engine oil and various plant oils) with viscosity of 1-8oE from one container to another. With brass gear, it can ... liquid without solid.Small size, durable, easy maintenance.Induction motor with aluminum casing, IP44 for regular motor, IP54 for ex- ...