IS&ISR Cast iron water pump with engine handle clean water and the liquid of which physical and chemical properties are similar to clean water.  It is used for industrial and city clean water supply and drainage, irrigation, fire protection, long distance water supply, metallurgy, chemical, textile, china processing, pigment, paper making, etc.(IS:temperature not exceeding 80 degree celcius ,ISR: temperature lessnot exceeding than 150degree celcius)