API - American Petroleum Institute
No. of pages: 34
API Std 600 - Standard for Steel Gate Valves, Flanged and Butt-welding Ends, Bolted Bonnets
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.
- This International 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 NPS: 1; 1 ¼; 1 ½; 2; 2 ½; 3; 4; 6; 8; 10; 12; 14; 16; 18; 20; 24, corresponding to nominal pipe sizes DN: 25; 32; 40; 50; 65; 80; 100; 150; 200; 250; 300; 350; 400; 450; 500; 600, applies for pressure class designations: 150; 300; 600; 900; 1500; 2500.