According to pump stype,there are:

1.Centrifugal water pump which has great effiency and high lift with outlet size from 1.5" to 2.5".
2.Self-priming water pump which has light weight and is easy to be operated.
3.With outlet size from 1.5" to 4",the pumps have got CEapprovals,sone of them meet GS.
4.Drainage pump with outlet size of 3",be specially used in handling drainage.
5.High-pressure pump with special centrifugal design,great effciency,powerful output and stable function.