Below is a listing of the basic specifications used in the design and manufacture of valves and fittings.
American Petroleum Institute
API Q1 Specification for quality programs
API 6D Specification for pipeline valves
API 6FA Fire test for valves
API 598 Valve inspection and testing
API 600 Steel gate valves, flanged and buttwelding ends, bolted and pressure seal bonnets
API 602 Compact steel gate valves – flanged, threaded, welding, and extended body ends
API 607 Fire test for soft seated quarter turn valves
API 608 Metal ball valves – flanged and butt welding ends
American Society of Mechanical Engineers/American National Standards Institute
ASME/ANSI B16.34 Valves – flanged, threaded and welding end
ASME/ANSI B16.5 Pipe flanges and flanged fittings
ASME/ANSI B16.10 Face-to-face and end-to-end dimensions of valves
ASME/ANSI B16.11 Forged fittings, socket-welding and threaded
ASME/ANSI B16.25 Butt welding ends
ASME/ANSI B16.47 Large diameter steel flanges Note: This specification for flanges larger than 24″ replaces MSS SP-44 and API 605 with the designations of Series A (MSS SP-44) and Series B (API 605).
ASME B31.3 Chemical plant and petroleum refinery piping
ANSI B31.4 Liquid petroleum transportation piping system
ANSI B31.8 Gas transmission and distribution piping system
Manufacturers Standardization Society of the Valves and Fittings Industry
MSS SP-25 Standard marking system for valves, fittings, flanges and unions
MSS SP-55 Quality standard for steel castings for valves, flanges, and fittings, and other piping components – visual method
MSS SP-70 Cast iron gate valves, flanged and threaded ends
MSS SP-71 Cast iron swing check valves, flanged and threaded ends
MSS SP-79 Socket-welding reducer inserts
MSS SP-80 Bronze gate, globe, angle and check valves
MSS SP-83 Class 3000 steel pipe unions, socket-welding and threaded
MSS SP-85 Cast iron globe and angle valves, flanged and threaded ends
National Association of Corrosion Engineers
NACE MR0175 Standard material requirements for sulfide stress cracking resistant metallic materials for oilfield equipment.
British Standards Institute
BSI 1414 Steel wedge gate valves (flanged and butt welding ends) for the petroleum, petrochemical, and allied industries
BSI 1868 Steel check valves (flanged and butt welding ends) for the petroleum, petrochemical, and allied industries
BSI 1873 Steel globe and globe stop and check valves (flanged and butt welding ends) for the petroleum, petrochemical, and allied industries
BSI 5352 Steel wedge gate, globe and check valves 50 mm and smaller for the petroleum, petrochemical, and allied industries
International Organization for Standardization
ISO 9001/9002 Quality system – Model for Quality Assurance
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