Plastic check valves molded at our facility are made from NSF 51/62 Approved materials, used for food and beverage applications. Our valves do not have grease or oil, like other diaphragm valves on the market. Ideal for contact with Food, Beverage, Water and Laboratory applications. Housings are molded from materials include POM -Celcon, M90® and PVDF, Arkema-Kynar 720®. The diaphragm options are EPDM, Santoprene™, or FDA Viton® disks. Sizes we offer include 1/8, 3/16, 1/4, 5/16, and 3/8 barbed valves.