API 609B Butterfly Valve

API 609B Butterfly Valve Supplier: Carbon Steel Flanged Butterfly Valve, 1/2-24 Inch, 150-900 LB, API 609B, MSS SP-67, MSS SP-68, Screwed, SW, BW Ends. Carbon Steel Butterfly Valve are used in such fields as metallurgy, light industry, electric power, petrochemistry, gas channels, etc.