ZYB series electric oil pumps are designed for conveying liquid media containing non-metallic impurities, such as diesel fuel, coal tar, heavy oil, and residual oil. They can also be used in applications requiring stable pressure and long-term continuous operation, including burners, asphalt mixing plants, and heavy-duty lubrication systems. These pumps feature self-sealing lubrication and automatic pressure regulation, enabling them to automatically restore pressure without disassembly after wear, thereby extending their service life to five times that of ordinary gear pumps.