This series of pumps are single-suction, single-stage, horizontal chemical centrifugal pumps. Used to transport neutral or corrosive media or petroleum products. The flow range is 2.5~460m³/h; the head range is 2.5~132m; the medium temperature is -20~180℃; the maximum working pressure is 1.6MPa. There are many structural forms of pump shaft seals, the most commonly used is the built-in unbalanced single-end mechanical seal. Depending on the working conditions, external, unbalanced or double-end mechanical seals can be selected. The flushing cooling method can be internal flushing or external flushing. Sealing additional devices (such as cyclones, heat exchangers, etc.) can also be installed. For media with suspended particles or weak corrosiveness, soft packing sealing (external flushing type or internal flushing type) can also be used.