DTM hot water circulation pump: 1.CE, ISO9001-2008, CQC, etc; 2.One ... large flow quantity, with certain ability of discharging dirty water and impurity. 2. They are single stage centrifugal pumps ... are suitable used on household, hospital, hotel, factory's water supplying, farm irrigation, etc. Technical date at 50 Hz ... requirements.Sample Room:Factory View:Certificate: DTM hot water circulation pump