Oberdorfer Oberdorfer Pumps has been manufacturing high-quality, dependable pumps for over 100 years. They manufacture gear pumps, centrifugal pumps, rubber impeller pumps, progressive cavity pumps, and roller pumps. In addition to standard pumps, Oberdorfer can customize products to meet the specific needs of OEMs. Their products span the Marine, Industrial, Agricultural, and Chemical Processing fields.