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API STD 603-2007


API Std 603

Corrosion-resistant, Bolted Bonnet Gate Valves-Flanged and Butt-welding Ends, Seventh Edition
Edition: 7th
American Petroleum Institute / 01-Jul-2007 /脗聽24 pages
1.1 This Standard specifies the requirements for corrosion-resistant bolted bonnet gate valves meeting the requirements of ASME B16.34, Standard Class, for valves having flanged or butt-weld ends in sizes NPS 1/2 through 24, corresponding to nominal pipe sizes in ASME B36.10M, and Classes 150, 300, and 600.
1.2 This Standard covers requirements for corrosion resistant gate valves for use in process piping applications. Covered are requirements for outside-screw-and-yoke (OS&Y) valves with rising stems, non-rising hand-wheels, bolted bonnets, and various
types of gate configurations.
1.3 Figure 1 illustrates a bolted bonnet gate valve for the purpose of establishing standard nomenclature for valve parts.
1.4 The dimensions in metric (SI) units are standard; customary units are shown for reference.

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