What are the API standards for valves
- API RP 591-2019 Process Valve Qualification Procedure 6th Edition
- API Std 594-2022 Check Valves: Flanged, Lug, Wafer and Butt-welding 9th Edition
- API Std 598-2023 Valve Inspection and Testing 11th Edition
- API Std 599-2020 Metal Plug Valves - Flanged, threaded and Welding Ends 8th Edition
- API Std 600-2021 Steel Gate Valves - Flanged and Butt-welding Ends, Bolted Bonnets 14th Edition
- API Std 602-2022 Gate, Globe and Check Valves for Sizes DN 100 (NPS 4) and Smaller for the Petroleum and Natural Gas Industries 11th Edition
- API Std 603-2018 Corrosion-Resistant, Bolted Bonnet Gate Valves - Flanged and Butt-Welding Ends 9th Edition
- API Std 607-2022 Fire Test for Quarter-turn Valves and Valves Equipped with Non-Metallic Seats 8th Edition
- API Std 608-2020 Metal Ball Valves - Flanged, Threaded and Butt-Welding Ends 6th Edition
- API Std 609-2021 Butterfly Valves: Double-flanged, Lug-and Wafer-type and Butt-welding Ends 9th Edition
- API RP 615-2022 Valve Selection Guide 3rd Edition
- API RP 621-2022 Reconditioning of Metallic Gate, Globe and Check Valves 5th Edition
- API Std 622-2018 (Addemdum 1-2022) Type Testing of Process Valve Packing for Fugitive Emissions 3rd Edition
- API Std 623-2021 Steel Globe Valves - Flanged and Butt-welding Ends, Bolted Bonnets 2nd Edition
- API Std 624-2023 Type Testing of Rising Stem Valves Equipped with Flexible Graphite Packing for Fugitive Emissions 2nd Edition
- API Std 641-2023 Type Testing of Quarter-turn Valves for Fugitive Emissions 2nd Edition
