Valve standards and applicable regulations The following lists the standards and specifications for the design, production and selection of valve types in pipeline transportation systems. The standards and specifications are not exhaustive, but they reflect the standards and specifications generally used in the industry. API 6D: Pipeline Valve Specification API 6FA: Valve Fire Test Specification API Specification QI: Quality Specification API Recommendation Clause 591: Refinery Valve User Acceptance API 594: Thin Body Check Valve Specification API 598: Valve Inspection and Testing API 600: Steel Gate Valve ——Flange connection and welding connection API 602; small carbon steel gate valve API 605: large diameter carbon steel according to the blue specification API 606: small carbon steel gate valve (with protruding stem) specification API 607: valve inspection test API 608: Specification for metal ball valves, flange connections or welded connections API 609: Specification for plug and sheet butterfly valves APIPR 621: Re-adjustment of metal gate valves, ball valves and check valve
s ASME/ANSI B16.10: Valve flange face-to-face dimensions and valves The distance from top to bottom ASME/ANSI B16.34: valve flange connection and welding connection ASME/ANSI B16.5; pipe fitting flange and flange fittings AsME/ANSI B16.20; steel pipe flange ring gasket and ring joint groove ASME/ANSI B16.25; Butt-welding end ASME/ANSI B31.4: Petroleum pipeline transportation system ASME/ANSI B31.8: Gas transmission and distribution pipeline system British Standards Institution BS1414: Steel wedge gate valve British Standards Institution BSl868: Steel stop Return valve British Standards Association BSl873; steel ball valve British Standards Association BS2080: valve size specification British Standards Association BS5351: steel ball valve BS5840: the operation of the actuator, according to the flange size and characteristics of the valve supporting instructions British Standards Association Bs67551 u0026 2: valve Test IS05210: Multi-turn valve actuators and accessories-flange dimensions and valve actuators ISO 5211: Half-turn valve actuators and accessories-flange dimensions and valve actuators ISO 9001: Quality Assurance Specifications National Association of Corrosion Engineers NACE Standard MR01.75: Material requirements for resistance to sulfide stress cracking of oilfield equipment. Valve and pipe fittings Manufacturers Standardization Association (MSS): MSS SP-6: Contact surface of pipe fitting flanges. Material of resistance to sulfide stress cracking of oilfield equipment requires MSS. SP-25: Standard marking system for valves, fittings and flanges MSs SP-25: Standard marking system for valves MSS SF-55: Quality standard for valves, fittings and flanges PBMSS SP-61: Steel valve pressure test MSS SP-66: Pressure rating of welded steel valve MSS SP-92: MSS Valve User's Guide—The installation and operation of various types of valves are manufactured according to the pressure rating determined by ASME/ANSI B16. B16.34 and N6.5 are similar in terms of pressure rating, the difference is that if additional specified non-destructive inspections are implemented, B16.34 stipulates that welding connected valves use a higher pressure rating. Today's valve standards are dynamic, which reflects reasonable and sound engineering practices, changes in market demand and changes in technology and production processes.
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