... gland seal mechanical seal KWP series sewage pump is characterized by high-efficiency, no clogging, rear dissembling structure ... . They can be applied to the city water supply system, the water plants, the breweries, the chemical industry, ... the type of KWP pump can handle clear water , all kinds of sewage,waste water and sludge so that ... KWPK250-500KWPK250-630,KWPK300-400 KWPK centrifugal water pump