Design acc to ISO 2858, introduced in the newest waterpower model to be as the replace of SG series. Technical specification, properties, test etc. are all introduced IS series ISO international standard, all properties are in accordance with the design standard. Appliance:： （一）ISW horizontal water pump, medium is water-like, suitable for industrial and city water supply and drainage,厖, cooling circulation, working temp T≤80℃ （二）ISWR horizontal hot water pump widely applied in the field of Metallurgy, Chemical, paper making, working temp T≤120℃ （三）SWH horizontal chemical pump, medium does not include solider grain, corrosion, viscosity is the same as water, applied in petrol, power-plant, paper making etc. working temp: -20℃?120℃ (四)ISWB horizontal pipe oil pump which medium is gasoline, coal oil, diesel oil or inflammable, explosible liquid, working temp: -20～+120℃