API 600 covers bolted bonnet steel gate valves for the petroleum and natural gas industries, specifically where “corrosion, erosion, and other service conditions indicate a need for full port openings, heavy wall sections, and extra large stem diameters.

This standard sets forth the requirements for the following gate valve features:
bolted bonnet,
outside screw and yoke,
rising stems,
non-rising handwheels,
single or double gate,
wedge or parallel seating,
metallic seating surfaces,
flanged or butt-welding ends.
It covers valves of the nominal pipe sizes DN:

— 25, 32, 40, 50, 65, 80, 100, 150, 200, 250, 300, 350, 400, 450, 500, 600, 650, 700, 750, 800, 850, 900, 950, 1000, 1050;

corresponding to nominal pipe sizes NPS (Inches):

— 1, 1 ¼, 1 ½, 2, 2 ½ 3, 4, 6, 8, 10, 12, 14, 16, 18, 20, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42;

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