1. The sanitary ball valve is a polytetrafluoroethylene sealing ring, which has the performance of corrosion resistance and high temperature. The valve can be opened in the diameter, the traffic is large, the operation is convenient, and the maintenance is convenient.

2. The seal of the sanitary butterfly valve is Sanyuanye rubber or silicone, the temperature is 0-120 °, which is used in the condition of normal temperature and weak acid medium.

3. Hygienic diaphragm valve is two types of dual -film and single film. Double -membrane diaphragm valve is resistant to corrosion and high temperature, suitable for biological engineering and pharmaceutical use. Hygiene is higher than the sanitary butterfly valve, sanitary ball valve.