... Sanitary Butterfly Valve Size 1"-4", DN25-DN100 Material quality: SUS304, SUS316L Standard: ISO, DIN, 3A, ... Connection mode: Clamped Specification: 1"-4", DN25-DN100 Material quality: SUS304, SUS316L Standard: ISO, DIN, 3A, SMS ... Normally closed, normally opened and opened and closed by two air flues separately. Application: Pharmacy, beer, food, ... drawing Sanitary Butterfly Valve with two threaded ends