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API (American Petroleum Institute) is a leader in the development of petroleum and petrochemical equipment and operating standards covering topics that range from drill bits to environmental protection. These embrace proven, sound engineering and operating practices and safe, interchangeable equipment and materials. Many have been incorporated into state and federal regulations and adopted by ISO for worldwide acceptance.
Metal Ball Valves - Flanged, Threaded, and Welding Ends, Seventh Edition
Standard published on 1.4.2025
Selected format:Butterfly Valves: Double-flanged, Lug- and Wafer-type, and Butt-welding Ends, Ninth Edition
Standard published on 1.4.2021
Selected format:Centrifugal Pumps for Petroleum, Petrochemical, and Natural Gas Industries, Twelfth Edition
Standard published on 1.1.2021
Selected format:General-purpose Steam Turbines for Petroleum, Chemical, and Gas Industry Services, Sixth Edition
Standard published on 1.6.2022
Selected format:Petroleum, Petrochemical, and Natural Gas Industries - Steam Turbines - Special-purpose Applications, Eighth Edition, Includes Errata 1 (2025)
Standard published on 1.11.2020
Selected format:Errata 1 to Petroleum, Petrochemical, and Natural Gas Industries - Steam Turbines - Special-purpose Applications, Eighth Edition
Adjunct of the standard published on 1.9.2025
Selected format:API Standard 613, Special Purpose Gear Units for Petroleum, Chemical and Gas Industry Services, Sixth Edition
Standard published on 1.7.2021
Selected format:Lubrication, Shaft-sealing and Oil-control Systems and Auxiliaries, Sixth Edition
Standard published on 1.2.2022
Selected format:Valve Selection Guide, Third Edition
Standard published on 1.8.2022
Selected format:Gas Turbines for the Petroleum, Chemical, and Gas Industry Services, Sixth Edition
Standard published on 1.9.2022
Selected format:Latest update: 2025-12-21 (Number of items: 2 252 887)
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