KS
API
ANSI
ASTM
ASME
MSS
BS
JIS
JPI
NACE
AWS
 
KSB 2361
 
API 6D
API 598
API 600
API 603
API 605
 
ANSI B16.5
ANSI B16.10
ANSI B16.25
ANSI B16.34
MSS SP-6
 
MSS SP-25
MSS SP-44
MSS SP-45
 
BS 1414
BS 1868
BS 1873
BS 5352
BS 6364
 
JIS B2003
JIS B2201
JIS B2203
JIS B2210
JIS B2071
JIS B2073
JIS B2074
JIS B2081
JIS B2083
JIS B2084
JPI 7S-15
JPI 7S-23
JPI 7S-24
JPI 7S-39
JPI 7S-46
JPI 7S-47

Korean standard
American Petroleum Institute
American national Standard
American Society for Testing and Materials
American Society of Mechanical Engineers
Manufacturesr Standardization Society of the Valve and Fitting Industry
British Standards Institution
Japanese Industrial Standards
Japan Petroleum Institute
National Association of Corrosion Engineers
American Welding Society
 
Korean Standard Cast Steel Flanged Valves
 
API Specification for Pipeline Valves
Valve Inspection and Test
Steel Gate Valves, Flanged and Butt-welding Ends
Class 150, Cast Corrosion-Resistant Flanged-End Gate Valves
Large-Diameter Carbon Steel Flanges
 
Steel Pipe Flanges and Flanged Fittings
Face-to-Face and End-to-End Dimensions of Ferrous Valves
Butt-Welding Ends
Valve-Flanged, Threaded, And Welding End
Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End
Flages of Valves and Fittings
Standard Marking System for Valves, Fittings, Flanges and Unions
Steel Pipe Line Flanges
By-Pass and Drain Connection Standard
 
Steel Wedge Gate Valves (flange and butt-welding ends)
Steel check valves (flange and butt-welding ends)
Steel globe and globe stop and check valves (flange and butt-welding ends)
Steel wedge gate, globe check valves (50mm & smaller)
Valve for cryogenic service
 
General Rules for Inspection of Valves
Pressure Ratings for Ferrous Material Pipe Flages
Tolerances for Pipe Flanges
Basic Dimension of Ferrous Material Pipe Flanges
10kgf/㎠ Cast Steel Flanged Globe Valves
10kgf/㎠ Cast Steel Flanged Gate Valves (Outside Screw Type)
10kgf/㎠ Cast Steel Flanged Swing Check Valves
20kgf/㎠ Cast Steel Flanged Globe Vlaves
20kgf/㎠ Cast Steel Flanged Gate Valves (Outside Screw Type)
20kgf/㎠ Cast Steel Flanged Swing Check Valves
Steel Pipe Flanges for The Petroleum Industry
Ring Joint Gaskets and Grooves for Petroleum Industry
Standard Marking System for valves
Valves Inspection and Test
Cast Steel Flanged Valves for Petroleum Industry (Class 150,300)
Cast Steel Valves for Petroleum Industry,
Flanged or Butt-welding Ends (Class 600 to 2500)