Check valves commonly use US standards
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I recently came across the pipeline grade tables for foreign projects. The standard for check valves is API 600 – I’m confused, isn’t that used for gate valves? ? The appendix to 20801.3 also mentions that it can be used in check valves, but after checking the Chinese version of API 600, I couldn’t find any mention of its relevance to control valves Thank you to all the experts for your advice
API 600 is indeed primarily a standard for gate valves, but in some cases it can also be applied to check valves. To determine whether it is applicable, it may be necessary to check the specific requirements of the project or consult the project’s engineers. In international projects, standards are sometimes applied flexibly according to engineering requirements. If check valves are not mentioned in the Chinese version of API 600, it is recommended to refer to the original English version or consult a professional for a more accurate answer. .
API 594 and API 602
APIStd602 GATEVALVE, Class150, RF, BB, HL, 0S&Y, A105/13Cr+13Cr, APIStd602 GATEVALVE, Class150, RF, BB, HL, 0S&Y, F304/STL+STL, BALLTYPE, 20% - radial, APIStd602
API 594 – Check Valves: Flanged, Lug, Wafer, and Butt-Welding is a standard issued by the American Petroleum Institute (API), applicable to check valves in various types such as flanged, clamp-type, and welded-end types. This standard specifies the design, dimensions, and material requirements for check valves. ASME B16.34 – Valves – Flanged, Threaded, and Welding End was issued by the American Society of Mechanical Engineers (ASME); it applies to valves with flanged, threaded, and welding ends, including check valves. This standard covers pressure-temperature ratings, material requirements, and valve design standards. API 6D – Specification for Pipeline and Piping Valves. This standard covers valves used in oil and gas pipeline systems, including check valves. API 6D is primarily applicable to the design, manufacturing, testing, and inspection requirements for pipeline valves. MSS SP-126 – Steel In-Line Spring-Loaded Check Valves was issued by the Valve and Fitting Manufacturing Standards Association (MSS); it specifies the design and manufacturing requirements for steel spring-loaded check valves, which are typically used in applications involving high-pressure and high-speed fluids. ASME B16.10 – Face-to-Face and End-to-End Dimensions of Valves: This standard specifies the butt length and end-to-end dimensions of valves, and is applicable to the installation and design of check valves. API 598 – Valve Inspection and Testing: This standard specifies the testing and inspection requirements for check valves and other types of valves, including leakage tests and pressure tests.