Commonly used standard numbers and names in American valve standards
ANSI B16.5 Steel flanges and flange fittings
ANSI B16.10 Structural lengths of iron and steel valves
ANSI B16.11 Forged steel pipe fittings with welded and threaded connections
ANSI B16.20 Annular gaskets and grooves for steel pipe flanges
ANSI B16.25 Butt weld joint ends
ANSI B16.34 Steel valves
ASTM A105 Carbon steel forgings
ASTM A126 Gray cast iron parts for valves, flanges, and fittings
ASTM A182 Forged and rolled alloy steel parts
ASTM A193 Alloy steel bolts
ASTM A194 Carbon and alloy steel nuts
ASTM A216 Carbon steel castings
ASTM A217 Alloy steel castings
ASTM A232 Quality standard for chromium vanadium alloy spring steel wire for valves
ASTM A276 Stainless heat-resistant steel bars and profiles
ASTM A320 Low-temperature alloy steel bolts
ASTM A350 Forgings of carbon steel and low-alloy steel for piping
ASTM A351 Stainless steel castings
ASTM A352 Low-temperature carbon and alloy steel castings
ASTM A479 Alloy steel bars and profiles
ASTM A488 Acceptance criteria for welding repair procedures on castings
ASTM A540 Special alloy steel bolts
MSS SP25 Marking of valves, fittings, flanges, and pipe fittings
MSS SP53 Quality standards for cast steel valves, flanges, pipe fittings, and other fittings
MSS SP53 Radiographic inspection standards for cast steel valves, flanges, pipe fittings, and other fittings
MSS SP55 Visual inspection of cast steel valves, flanges, pipe fittings, and other fittings
API 6D Pipeline valve specification
API 526 Safety valves with steel flange connections for use in the petroleum refining industry
API 527 General requirements for safety valves with metal-to-metal seals
API 528 Safety valve nameplate standards
API 598 Flanged iron gate valves
API 600 Steel gate valve with flange or time-connection
API 602 Small-bore compact carbon steel gate valve with reduced neck
