This document applies to pump 3301.180. The pump is designed mainly for operation in pump sumps, i.e. sewage pumping in pumping stations and/or sewage treatment plants. The pump has a hydraulic power of 31.67 kW and an overall efficiency of 75.2%. The average weight of the pump is 779 kg. The pump is equipped with the patented N-technique. The semi open design of the impeller reduces the risk of clogging and maintains pumping efficiency over longer periods of time.