Valve Flange Standards

This Standard applies to new construction and covers pressure-temperature ratings, dimensions, tolerances, materials, nondestructive examination requirements, testing, and marking for cast, forged, and fabricated flanged, threaded, and welding end and wafer or flangeless valves of...

This standard specifies the requirements for quarter turn metal plug valves, including the lift plug type, for the petroleum, petrochemical, and industrial applications. This standard is applicable to: - steel, nickel base, and other alloy plug valves with flanged or...

This API standard specifies the requirements for a heavy-duty series of bolted bonnet steel globe valves for petroleum refinery and related applications where corrosion, erosion, and other service conditions would indicate a need for heavy wall sections and large stem diameters. This...

This standard specifies the requirements for metal ball valves suitable for petroleum, petrochemical, and industrial applications- corresponding to the nominal pipe sizes in ASME B36.10M-that have: - flanged ends in sizes DN 15 through DN 600 (NPS 1/2 through NPS 24); - butt-welding...

This Standard Practice covers gray iron swing check valves with flanged and threaded ends for general purpose service. The use of swing check valves in steeply inclined or vertical lines requires special consideration. This Standard Practice also includes, directly or by...

This Standard Practice provides methods and acceptance standards for magnetic particle examination of ferritic steel valves, flanges, fittings, and other piping components by use of dry magnetic powder or wet magnetic particles. It is applicable to the examination of repairs and the...

This specification covers flanged ball and plug valves for sewage and seawater service, under pressure or vacuum. Sewage contains seawater with varying amounts of detergents, caustics, acids, human wastes, sediments, oils, greases, solvents, and other chemical agents used on board...

This Standard Practice provides methods and acceptance standards for liquid penetrant examination of steel castings and forgings for valves, flanges, fittings and other piping components. It is applicable to examination of repairs as well as to initial examination of castings and...

This Standard Practice provides methods and acceptance standards for Positive Material Identification (PMI) of metal flanges, fittings, valves, pressure boundary parts of valves, and other piping components. The instrumentation used for PMI testing covered by this Standard...

This Standard Practice provides methods and acceptance standards for ultrasonic examination of austenitic, ferritic, and martensitic steel castings and forgings for valves, flanges, fittings, and other piping components. This Standard Practice is applicable to the initial examination...

1.1 This specification covers three classes of gray iron for castings intended for use as valve pressure-retaining parts, pipe fittings, and flanges. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions...

If a product is supplied bearing the API Monogram and manufactured at a facility licensed by API, the requirements of Annex A apply. This standard covers the design, material, face-to-face dimensions, pressure-temperature ratings, and examination, inspection, and test requirements for two types of...

This specification covers a group of common requirements that shall apply to steel flanges, forged fittings, valves, and parts for piping applications. If the primary melting is required it shall incorporate separate degassing or refining and may be followed by secondary melting, such...

This standard specifies the requirements for corrosion-resistant bolted bonnet gate valves meeting the requirements of Standard Class, ASME B16.34 and having full port openings for use in process piping applications. This standard sets forth the requirements for the following gate...

1.1 This specification covers hot isostatically-pressed, powder metallurgy, stainless steel piping components for use in pressure systems. Included are flanges, fittings, valves, and similar parts made to specified dimensions or to dimensional standards, such as in ASME specification...

1.1 This specification covers hot isostatically-pressed, powder metallurgy, alloy steel piping components for use in pressure systems. Included are flanges, fittings, valves, and similar parts made to specified dimensions or to dimensional standards, such as in ASME Specification B16...

This standard marking system applies to the marking of new valves, fittings, flanges, and unions used in piping connections that include (but are not limited to) flanged, soldered, brazed, threaded, or welded joints. The markings specified within this Standard Practice serve to...

1.1 This specification covers forged or rolled steel pipe flanges, forged fittings, valves, and parts suitable for use with high-strength transmission-service pipe. Included are flanges, fittings, and similar parts ordered either to dimensions specified by the purchaser or to...

This standard specifies the requirements for a heavy-duty series of bolted bonnet steel gate valves for petroleum refinery and related applications where corrosion, erosion, and other service conditions would indicate a need for full port openings, heavy wall sections, and large stem...