... /h 2,Head;20-85 m 3,Outlet diameter;200-1000 mm 4,Max diameter of flowed partice;178-350 mm WN ... /h,100 m3/h,120 m3/h,200 m3/h, bucket-wheel and cutter suction dredges of 350 m3/h, cutter suction ... .The head can be changed by changing the speed and diameter of WN(Q) pumps’ impeller.For the wet end parts ...