Listed below are some commonly used valve manufacturing, inspection and testing standards for the petrochemical industry.

{xtypo_info}API 600-Steel Valves - Flanged & Buttwelding Ends{/xtypo_info}

API 600 is the primary steel gate valve purchase specification. Valve design and construction criteria are detailed, as well as materials and trim designations. An appendix contains information pertaining to pressure seal valves. ISO Standard 10434 is essentially the same as API 600, only published in the ISO format.

{xtypo_info}API 602 Compact Steel Gate Valves- Flanged, Threaded, Welding and Extended-Body Ends{/xtypo_info}

API 602 is the 4" & smaller forged steel gate valve purchase specification. Valve design and construction criteria are detailed, as well as materials and trim designations.

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