S-type single stage double entry centrifugal pumps are late-model energy-saving horizontally split pumps used to handle clean water or other liquids similar to water in physical and chemical properties. In case of needed, they may be used to handle muddy sand or various corrosive liquids by changing their structure and materials. This series of pumps are applicable for factories, mines, city water supply and drainage, power stations, agricultural irrigation and water conservancy.