Titanium Butterfly Valve Standard:BS EN593 Size:DN50-2000mm Titanium Butterfly Valve:Pressure range 0.6~4.0MPa Nominal diameter range 50~2000mmExecutive standards GB,ISO,ANSI,ASTM,API,JIS,BS,DIN,NF and etc.Material quality titanium, nickel, zirconium, Hastelloy, Monel, 316,310,304,WC6 and etc. Titanlum Butterfly Valve