Butterfly valve without pin: 1) DN40-3000 1.5"~12" 2) PN10/ ... , EN 1092, AS 2129 4) F/F:EN 558-1 Butterfly valve without pin, wafer type butterfly valve:SizeDN40-DN300End flangeANSI B 16.1 ... to cut-off or regulate ApplyFresh water, sewage, sea water, air, vapor, food, medicine, oils. acids, alkalis, salt etc ...