Size: DN25-DN150, 1"-6" S..tandards: DIN, SMS, ISO, RJT, 3A, IDF Material:SUS304,304L,316L Applications: Food, Dairy......... Product name: three-piece flanged check valve, sanitary check valve 1.Size: DN25-DN150, 1"-6" 2.Standards: DIN, SMS, ISO, RJT, 3A, IDF 3.Material: The parts contact with the product is AISI304, AISI304L, AISI316L 4.Applications: Food, Dairy, Beverage, Beer, Wine, Pharmacy, ...