API STD 609:2021
Current
Current
The latest, up-to-date edition.
Butterfly Valves: Double-flanged, Lug- and Wafer-type, and Butt-welding Ends
Available format(s)
Hardcopy , PDF
Language(s)
English
Published date
04-22-2021
Publisher
This standard covers design, materials, face-to-face dimensions, pressure-temperature ratings, and examination, inspection, and test requirements for gray iron, ductile iron, bronze, steel, nickel-based alloy, or special alloy butterfly valves.
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