A wastewater pump is an enclosed unit with a pump and a motor. Due to this construction the wastewater pump is suitable for submersible installation in pits.
Normally, wastewater pumps have to be able to handle large particles. Therefore they are fitted with special impellers that make it possible to avoid blockage and clogging. Different types of impellers exist; single channel impellers, double channel impellers, three and four channel impellers and vortex impellers.
Wastewater pumps usually come with a dry motor, which is IP68 protected (for more information on IP-classes, click here). Motor and pump have a common extended shaft with a double mechanical shaft seal system in an intermediate oil chamber.
Wastewater pumps are able to operate either intermittently or continuously, depending on the installation in question.