... Speed:1450,980,750,2900r/min model ze pulp open type impeller pump:We have been in pulp ... :1450,980,750,2900r/minProduct descrption:1.Totally open impeller,high efficiency,light in weight ,small axial ... pipeIt is easy to maintain, and replace.Single face mechaical seal,used for pulp below the thickness ... of 4.5%.Double face mechanical seal, used for harsh media and corrosive ...