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API Std 603
Corrosion-resistant, Bolted Bonnet Gate Valves-Flanged and Butt-welding Ends, Seventh Editionstandard by American Petroleum Institute, 07/01/2007
This Standard covers requirements for corrosion resistant gate valves for use in process piping applications. Covered are requirements for outside-screw-and-yoke (OSY) valves with rising stems, non-rising hand-wheels, bolted bonnets, and various types of gate configurations.
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