API 600: Piping Quiz

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.

API 6D mainly applies to Pipeline valves.

The Api 600 gives the range of flow pass, this is between reduced to full port.

API 600 covers for larger valves

API 6D defines the requirements for the design, manufacturing, assembly, testing, and documentation of ball, check, gate, and plug valves for application in pipeline and piping systems for the petroleum and natural gas industries.

Backseat tests are required for valves with a backseat element, including gate and globe valves.

API 598 covers the inspection, examination, and testing requirements for resilient-seated, non-metallic-seated, and metal-to-metal-seated gate, glove, plug, ball, check, and butterfly valves.

API 602 also requires a heavier wall for 150#, 300# & 600# classes than does B16. 34

API has standardized trim materials by assigning a unique number to each set of trim materials.