... /5B is another product different from JY-1000/5A. Comparing with JY-1000/5A, it has effective safety equipment. However, ... principles and installation sizes are same.Self Priming Gear Oil Pump for diesel oil, kerosene, gasoline, lubricant liquid transfer.1. ... liquid without solid.Small size, durable, easy maintenance.Induction motor with aluminum casing, IP44 for regular motor, IP54 for ex-proof ...