The materials of Sanitary Check Valve are mainly stainless steel SUS304 and SUS316L. These two materials have excellent corrosion resistance and high temperature resistance, and can meet the special requirements of media in the fields of food, biopharmaceuticals, etc. At the same time, these materials are easy to clean and disinfect, and meet relevant health standards, such as 3A standards, FDA standards, etc., to ensure product hygiene and safety.