Sanitary Butterfly Valves Sanitary Check Valves Features: 1) Materials: SS316L, SS304 2) Sizes: 1" - 6" 3) Sanitary standards such 3A, DIN11851, SMS, IDF 4) Remote-controlled operation by driving gear 5) Multi-position handle positions and Pulling handle operation by handle 6) Connection end: welded, quick-install, threaded, flanged 7) Widely used in such fields as food, pharmaceutical, dairy, beer and fine chemistry