ZYB series oil transfer gear pump adopts self-sealing lubrication design and automatic adjustment structure, and the parts are made of high wear-resistant materials, featuring compact structure, strong scrutinizing ability, high applicability and high efficiency. This product can be used to deal with media not higher than 260 ℃, viscosity not greater than 150 mm2/S and containing non-metallic impurities, such as diesel oil, heavy oil, coal tar, motor oil and other media. It is especially appropriate for the occasions that need stable working pressure and long-term continuous transmission.