API Std 600

Please note that any addenda or errata may not be included in translated editions of this standard.This standard specifies the requirements for a heavy-duty series of bolted bonnet steel gate valves for petroleum refinery and related applications where corrosion, erosion, and other service conditions would indicate a need for full port openings, heavy wall sections, and 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: —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; and applies to pressure class designations: —150, 300, 600, 900, 1500, 2500.

This International standard specifies the requirements for a heavy-duty series of bolted bonnet steel gate valves for petroleum refinery and related applications where corrosion, erosion and other service conditions would indicate a need for full port openings, heavy wall sections and large stem diameters.