Peristaltic pumps can be classified into the following categories according to the size of flow. Small flow peristaltic pump: mainly used in experimental and medical industries, high flow accuracy. Medium flow peristaltic pump: mainly used for experiments, medical treatment and small production and distribution, etc., with high flow accuracy. Large flow peristaltic pump: mainly used for large flow rate verification, production filling and distribution, as well as industrial liquid transport. The peristaltic pump is classified according to function: 1. Basic peristaltic pump: mainly used for continuous or long working mode. 2, flow type peristaltic pump: in addition to having basic functions, it has increased flow display, traffic correction, communication and other functions. 3. Distributive peristaltic pump: mainly used for timing and quantitative distribution, for example, filling of pharmaceutical bottles.