... clear water, sewage, fluids containing solids and sludge which do not liberate gas."N" impeller: Closed multi-vane impellerFor clear ... mining, the metallurgy, the paper making, the sugar producing and the canned food industry, particularly applicable to the sewage treatment ... transportations of fruits, potatoes, sugar beet, fish, grains and other food. Type KWP pump normally is suitable for delivering ...