Wall Thickness

Minimum Wall Thickness for Body and Bonnet in mm (inch) for
Ball, Axial, Check, Wafer check, Gate, Globe, Globe check, Piston check, Plug, and Butterfly Valves

STANDARD   API 600 API 62 API 602 ISO 157615 API 603 ASME B16.34 API 5942
TYPE A AND B
Material Group 2, 3
API 5943
TYPE A Class 150-300 in
Ductile Iron and TYPE
A, B Material Group 1
API 5996
LUBRICATED
Material Group 1
API 5997
LUBRICATED
Material Group 2, 3
and
NON-LUBRICATED
Material Group 1, 2, 3
API 6D API 608 API 609
Category A
Category B
BS 1868 BS 1873 API 600 API 6231 API 602 ISO 157615 API 603 ASME B16.34 API 5942
TYPE A AND B
Material Group 2, 3
API 5943
TYPE A Class 150-300 in Ductile Iron and TYPE A, B Material Group 1
API 5996
LUBRICATED
Material Group 1
API 5997
LUBRICATED
Material Group 2, 3
and
NON-LUBRICATED
Material Group 1, 2, 3
API 6D API 608 API 609
Category B
BS 1868 BS 1873 BS 1868 API 600 API 6231 API 602 ISO 157615 API 603 ASME B16.34 API 5942
TYPE A AND B
Material Group 2, 3
API 5944
TYPE A, B, Material Group 1
API 5996
LUBRICATED
Material Group 1
API 5997
LUBRICATED
Material Group 2, 3
and
NON-LUBRICATED
Material Group 1, 2, 3
API 6D API 608 API 609
Category B
BS 1868 BS 1873 API 602 ISO 157615 API 608 API 600 API 6231 API 602 ISO 15761 API 603 ASME B16.34 API 5942
TYPE A AND B
Material Group 2, 3
API 5944
TYPE A, B, Material Group 1
API 5996
LUBRICATED
Material Group 1
API 5997
LUBRICATED
Material Group 2, 3
and
NON-LUBRICATED
Material Group 1, 2, 3
API 6D API 608 API 609 BS 1868 BS 1873 API 600 API 6231 API 602 ISO 15761 API 603 ASME B16.34 API 5942
TYPE A AND B
Material Group 2, 3
API 5944
TYPE A, B, Material Group 1
API 5996
LUBRICATED
Material Group 1
API 5997
LUBRICATED
Material Group 2, 3
and
NON-LUBRICATED
Material Group 1, 2, 3
API 6D API 608 API 609 BS 1868 BS 1873 ISO 15761 API 600 API 6231 API 602 ISO 15761 API 603 ASME B16.34 API 5942
TYPE A AND B
Material Group 2, 3
API 5944
TYPE A, B, Material Group 1
API 5996
LUBRICATED
Material Group 1
API 5997
LUBRICATED
Material Group 2, 3
and
NON-LUBRICATED
Material Group 1, 2, 3
API 6D API 608 API 609 BS 1868 BS 1873 ISO 15761
Class Designation                 150               300                             400 600                             800     900                             1500                             PN 250 2500                             PN400
Nominal Size
DN
Nominal Pipe Size
NPS
Minimum Wall Thickness
lm
mm (in.)
                                                                                                                                                                                             
8 0.25 3.3 (0.13) 3.1 (0.12) 2.9 (0.11) 2.9 (0.11) 2.9 (0.11) 2.9 (0.11) 3.3 (0.13) 3.1 (0.12) 2.9 (0.11) 2.9 (0.11) 2.9 (0.11) 2.9 (0.11) 3.3 (0.13) 3.1 (0.12) 3.2 (0.13) 3.2 (0.13) 3.2 (0.13) 3.2 (0.13) 3.3 (0.13) 3.1 (0.12) 3.3 (0.13) 3.5 (0.14) 3.5 (0.14) 3.5 (0.14) 3.8 (0.15) 3.8 (0.15) 4 (0.16) 4 (0.16) 4.0 (0.16) 4.5 (0.18) 5.6 (0.22) 5.3 (0.21) 5.3 (0.21) 5.3 (0.21) 6.1 (0.24)
10 0.375 3.6 (0.14) 3.3 (0.13) 3 (0.12) 3 (0.12) 3.0 (0.12) 3.0 (0.12) 3.6 (0.14) 3.3 (0.13) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.1 (0.12) 3.6 (0.14) 3.3 (0.13) 3.4 (0.13) 3.4 (0.13) 3.4 (0.13) 3.4 (0.13) 3.6 (0.14) 3.3 (0.13) 3.6 (0.14) 3.8 (0.15) 3.8 (0.15) 3.8 (0.15) 4.3 (0.17) 4.3 (0.17) 4.4 (0.17) 4.4 (0.17) 4.4 (0.17) 4.7 (0.19) 5.9 (0.23) 5.9 (0.23) 5.9 (0.23) 5.9 (0.23) 6.5 (0.26)
15 0.5 4.1 (0.16) 4.1 (0.16) 3.2 (012) 3.3 (0.13) 3.3 (0.13) 4.6 (0.18) 3.3 (0.13) 3.3 (0.13) 3.3 (0.13) 4.8 (0.19) 6.3 (0.25) 4.1 (0.16_ 4.1 (0.16) 3.3 (0.13) 3.5 (0.14) 3.5 (0.14) 4.6 (0.18) 3.5 (0.14) 3.5 (0.14) 3.5 (0.14) 4.8 (0.19) 6.3 (0.25) 4.1 (0.16_ 4.1 (0.16) 3.6 (0.14) 3.8 (0.15) 3.8 (0.15) 5.3 (0.21) 3.8 (0.15) 3.8 (0.15) 3.8 (0.15) 6.4 (0.25) 6.3 (0.25) 4.1 (0.16) 4.1 (0.16) 4.1 (0.16) 4.5 (0.18) 4.5 (0.18) 5.3 (0.31) 4.5 (0.18) 4.5 (0.18) 4.8 (0.19) 4.8 (0.19) 5.3 (0.21) 5.3 (0.21) 5.3 (0.31) 5.3 (0.21) 5.3 (0.21) 9.5 (0.37) 9.5 (0.37) 5.8 (0.23) 7.7 (0.3) 7.7 (0.3) 7.7 (0.3) 5.3 (0.31) 7.7 (0.3) 7.7 (0.3) 11.1 (0.44) 11.1 (0.44) 8.5 (0.33)
20 0.75 4.8 (0.19) 4.8 (0.19) 3.6 (014) 3.6 (0.14) 3.6 (0.14) 4.6 (0.18) 3.6 (0.14) 3.6 (0.14) 3.6 (0.14) 4.8 (0.19) 6.3 (0.25) 4.8 (0.19) 4.8 (0.19) 3.8 (0.15) 3.9 (0.15) 3.9 (0.15) 4.6 (0.18) 3.9 (0.15) 3.9 (0.15) 3.9 (0.15) 4.8 (0.19) 6.3 (0.25) 4.8 (0.19) 4.8 (0.19) 4.2 (0.16) 4.3 (0.17) 4.3 (0.17) 6.4 (0.25) 4.3 (0.17) 4.3 (0.17) 4.3 (0.17) 7.9 (0.31) 7.1 (0.28) 4.8 (0.19) 4.8 (0.19) 4.8 (0.19) 5.3 (0.21) 5.3 (0.21) 10.2 (0.40) 5.3 (0.21) 5.3 (0.21) 6.1 (0.24) 6.1 (0.24) 6.2 (0.24) 6.2 (0.24) 10.2 (0.40) 6.2 (0.24) 6.2 (0.24) 11.1 (0.44) 11.1 (0.44) 7.0 (0.28) 9.4 (0.37) 9.4 (0.37) 9.4 (0.37) 10.2 (0.40) 9.4 (0.37) 9.4 (0.37) 13.5 (0.53) 13.5 (0.53) 10.4 (0.41)
25 1 6.4 (0.25) 5.8 (0.23) 5.6 (0.22) 4.0 (0.16) 3.9 (0.16) 3.9 (0.16) 6.4 (0.25) 3.9 (0.16) 3.9 (0.16) 3.9 (0.16) 6.4 (0.25) 6.3 (0.25) 6.4 (0.25) 5.8 (0.23) 5.6 (0.22) 4.3 (0.17) 4.3 (0.17) 4.3 (0.17) 6.4 (0.25) 4.3 (0.17) 4.3 (0.17) 4.3 (0.17) 6.4 (0.25) 6.3 (0.25) 7.9 (0.31) 5.8 (0.23) 5.6 (0.22) 4.8 (0.19) 4.8 (0.19) 4.8 (0.19) 7.9 (0.31) 4.8 (0.19) 4.8 (0.19) 4.8 (0.19) 7.9 (0.31) 7.9 (0.31) 5.8 (0.23) 5.6 (0.22) 5.8 (0.23) 12.7 (0.50) 6.3 (0.25) 6.3 (0.25) 12.7 (0.50) 6.3 (0.25) 6.3 (0.25) 12.7 (0.50) 7.1 (0.28) 7.1 (0.28) 7.2 (0.28) 7.2 (0.28) 12.7 (0.50) 7.2 (0.28) 7.2 (0.28) 12.7 (0.5) 12.7 (0.5) 8.1 (0.32) 15.0 (0.59) 11.1 (0.44) 11.1 (0.44) 11.1 (0.44) 15.0 (0.59) 11.1 (0.44) 11.1 (0.44) 15.1 (0.59) 15.1 (0.59) 12.4 (0.49)
32 1.25 6.4 (0.25) 6.1 (0.24) 5.8 (0.23) 4.4 (0.17) 4.4 (0.17) 4.4 (0.17) 6.4 (0.25) 4.4 (0.17) 4.4 (0.17) 4.4 (0.17) 6.4 (0.25) 6.3 (0.25) 6.4 (0.25) 6.1 (0.24) 5.8 (0.23) 4.8 (0.19) 4.8 (0.19) 4.8 (0.19) 6.4 (0.25) 4.8 (0.19) 4.8 (0.19) 4.8 (0.19) 6.4 (0.25) 6.3 (0.25) 8.6 (0.34) 6.1 (0.24) 5.8 (0.23) 5.1 (0.20) 5.2 (0.2) 5.2 (0.2) 8.6 (0.34) 5.2 (0.2) 5.2 (0.2) 5.2 (0.2) 8.6 (0.34) 8.7 (0.34) 6.1 (0.24) 5.8 (0.23) 6.1 (0.24) 14.2 (0.56) 6.7 (0.26) 6.7 (0.26) 14.2 (0.56) 6.7 (0.26) 6.7 (0.26) 14.2 (0.56) 8.4 (0.33) 8.4 (0.33) 8.4 (0.33) 8.4 (0.33) 14.2 (0.56) 8.4 (0.33) 8.4 (0.33) 14.2 (0.56) 14.2 (0.56) 9.4 (0.37) 17.5 (0.69) 13.1 (0.52) 13.4 (0.53) 13.4 (0.53) 17.5 (0.69) 13.4 (0.53) 13.4 (0.53) 17.5 (0.69) 17.5 (0.69) 14.8 (0.58)
40 1.5 6.4 (0.25) 6.6 (0.26) 6.1 (0.24) 4.8 (0.19) 4.9 (0.19) 4.9 (0.19) 6.4 (0.25) 4.9 (0.19) 4.9 (0.19) 4.9 (0.19) 6.4 (0.25) 6.3 (0.25) 7.9 (0.31) 6.6 (0.26) 6.1 (0.24) 5.2 (0.21) 5.3 (0.21) 5.3 (0.21) 7.9 (0.31) 5.3 (0.21) 5.3 (0.21) 5.3 (0.21) 7.9 (0.31) 7.9 (0.31) 9.4 (0.37) 6.6 (0.26) 6.1 (0.24) 5.5 (0.22) 5.6 (0.22) 5.6 (0.22) 9.4 (0.37) 5.6 (0.22) 5.6 (0.22) 5.6 (0.22) 9.3 (0.37) 9.5 (0.37) 6.6 (0.26) 6.1 (0.24) 6.6 (0.26) 15.0 (0.59) 7.2 (0.28) 7.2 (0.28) 15.0 (0.59) 7.2 (0.28) 7.2 (0.28) 15.0 (0.59) 9.7 (0.38) 9.7 (0.38) 9.9 (0.39) 9.9 (0.39) 15.0 (0.59) 9.9 (0.39) 9.9 (0.39) 15.0 (0.59) 15.0 (0.59) 11.4 (0.45) 19.1 (0.75) 16.2 (0.64) 16.2 (0.64) 16.2 (0.64) 19.1 (0.75) 16.2 (0.64) 16.2 (0.64) 19.0 (0.75) 19.0 (0.75) 18.3 (0.72)
50 2 8.6 (0.34) 8.6 (0.34) 7.4 (0.29) 7.1 (0.28) 5.5 (0.22) 5.5 (0.22) 5.5 (0.22) 8.6 (0.34) 8.6 (0.34) 5.5 (0.22) 5.5 (0.22) 5.5 (0.22) 5.5 (0.22) 8.7 (0.34) 8.7 (0.34) 9.7 (0.38) 9.7 (0.38) 7.4 (0.29) 7.1 (0.28) 6.1 (0.24) 6 (0.24) 6 (0.24) 9.7 (0.38) 9.7 (0.38) 6 (0.24) 6 (0.24) 6 (0.24) 6 (0.24) 9.5 (0.37) 9.5 (0.37) 11.2 (0.44) 11.2 (0.44) 7.4 (0.29) 7.1 (0.28) 6.2 (0.25) 6.2 (0.24) 6.2 (0.24) 11.2 (0.44) 11.2 (0.44) 6.2 (0.24) 6.2 (0.24) 6.2 (0.24) 11.1 (0.44) 11.1 (0.44) 7.4 (0.29) 7.1 (0.28) 7.4 (0.29) 19.1 (0.75) 19.1 (0.75) 7.8 (0.31) 7.8 (0.31) 19.1 (0.75) 19.1 (0.75) 7.8 (0.31) 7.8 (0.31) 19.1 (0.75) 19.1 (0.75) 11.9 (0.47) 11.9 (0.47) 11.8 (0.46) 11.8 (0.46) 19.1 (0.75) 19.1 (0.75) 11.8 (0.46) 11.8 (0.46) 19.0 (0.75) 19.0 (0.75) 13.6 (0.54) 22.4 (0.88) 22.4 (0.88) 19.6 (0.77) 19.6 (0.77) 19.6 (0.77) 22.4 (0.88) 22.4 (0.88) 19.6 (0.77) 19.6 (0.77) 22.2 (0.87) 22.2 (0.87) 22.3 (0.88)
65 2.5 9.7 (0.38) 9.7 (0.38) 8.4 (0.33) 8.4 (0.33) 5.8 (0.23) 5.8 (0.23) 5.8 (0.23) 9.7 (0.38) 9.7 (0.38) 5.8 (0.23) 5.8 (0.23) 5.8 (0.23) 5.8 (0.23) 9.5 (0.37) 9.5 (0.37) 11.2 (0.44) 11.2 (0.44) 8.4 (0.33) 8.4 (0.33) 6.5 (0.26) 6.5 (0.26) 6.5 (0.26) 11.2 (0.44) 11.2 (0.44) 6.5 (0.26) 6.5 (0.26) 6.5 (0.26) 6.5 (0.26) 11.1 (0.44) 11.1 (0.44) 11.9 (0.47) 11.9 (0.47) 8.4 (0.33) 8.4 (0.33) 7.1 (0.28) 7.2 (0.28) 7.2 (0.28) 11.9 (0.47) 11.9 (0.47) 7.2 (0.28) 7.2 (0.28) 7.2 (0.28) 11.9 (0.47) 11.9 (0.47) 8.4 (0.33) 8.4 (0.33) 8.4 (0.33) 22.4 (0.88) 22.4 (0.88) 9.3 (0.37) 9.3 (0.37) 22.4 (0.88) 22.4 (0.88) 9.3 (0.37) 9.3 (0.37) 22.4 (0.88) 22.4 (0.88) 14.2 (0.56) 14.2 (0.56) 14.5 (0.57) 14.5 (0.57) 22.4 (0.88) 22.4 (0.88) 14.5 (0.57) 14.5 (0.57) 22.2 (0.87) 22.2 (0.87) 16.9 (0.67) 25.4 (1.00) 25.4 (1.00) 24.7 (0.97) 24.7 (0.97) 25.4 (1.00) 25.4 (1.00) 24.7 (0.97) 24.7 (0.97) 25.4 (1) 25.4 (1)
80 3 10.4 (0.41) 10.4 (0.41) 9.7 (0.38) 9.7 (0.38) 6.0 (0.24) 6.1 (0.24) 6.1 (0.24) 10.4 (0.41) 10.4 (0.41) 6.1 (0.24) 6.1 (0.24) 6.1 (0.24) 6.1 (0.24) 10.3 (0.41) 10.3 (0.41) 11.9 (0.47) 11.9 (0.47) 9.7 (0.38) 9.7 (0.38) 6.9 (0.28) 7 (0.28) 7 (0.28) 11.9 (0.47) 11.9 (0.47) 7 (0.28) 7 (0.28) 7 (0.28) 7 (0.28) 11.9 (0.47) 11.9 (0.47) 12.7 (0.50) 12.7 (0.50) 9.7 (0.38) 9.7 (0.38) 7.9 (0.31) 8.2 (0.32) 8.2 (0.32) 12.7 (0.50) 12.7 (0.50) 8.2 (0.32) 8.2 (0.32) 8.2 (0.32) 8.2 (0.32) 12.7 (0.5) 12.7 (0.5) 9.7 (0.38) 9.7 (0.38) 9.7 (0.38) 19.1 (0.75) 19.1 (0.75) 10.9 (0.43) 10.9 (0.43) 19.1 (0.75) 19.1 (0.75) 10.9 (0.43) 10.9 (0.43) 19.0 (0.75) 19.0 (0.75) 23.9 (0.94) 23.9 (0.94) 16.5 (0.65) 16.5 (0.65) 17.3 (0.68) 17.3 (0.68) 23.9 (0.94) 23.9 (0.94) 17.3 (0.68) 17.3 (0.68) 23.8 (0.94) 23.8 (0.94) 20.2 (0.80) 30.2 (1.19) 30.2 (1.19) 29.8 (1.17) 29.8 (1.17) 30.2 (1.19) 30.2 (1.19) 29.8 (1.17) 29.8 (1.17) 30.2 (1.19) 30.2 (1.19)
100 4 11.2 (0.44) 11.2 (0.44) 11.9 (0.47) 11.9 (0.47) 6.4 (0.26) 6.5 (0.26) 6.5 (0.26) 11.2 (0.44) 11.2 (0.44) 6.5 (0.26) 6.5 (0.26) 6.5 (0.26) 6.5 (0.26) 11.1 (0.44) 11.1 (0.44) 12.7 (0.50) 12.7 (0.50) 11.9 (0.47) 11.9 (0.47) 7.8 (0.31) 7.7 (0.3) 7.7 (0.3) 12.7 (0.50) 12.7 (0.50) 7.7 (0.3) 7.7 (0.3) 7.7 (0.3) 7.7 (0.3) 12.7 (0.5) 12.7 (0.5) 12.7 (0.5) 16.0 (0.63) 16.0 (0.63) 11.9 (0.47) 11.9 (0.47) 9.6 (0.38) 9.5 (0.37) 9.5 (0.37) 16.0 (0.63) 16.0 (0.63) 9.5 (0.37) 9.5 (0.37) 9.5 (0.37) 9.5 (0.37) 15.9 (0.63) 15.9 (0.63) 11.9 (0.47) 11.9 (0.47) 11.9 (0.47) 21.3 (0.84) 21.3 (0.84) 13 (0.51) 13 (0.51) 21.3 (0.84) 21.3 (0.84) 13 (0.51) 13 (0.51) 21.4 (0.84) 21.4 (0.84) 28.7 (1.13) 28.7 (1.13) 21.3 (0.84) 21.3 (0.84) 21 (0.83) 21 (0.83) 28.7 (1.13) 28.7 (1.13) 21 (0.83) 21 (0.83) 28.6 (1.13) 28.6 (1.13) 24.6 (0.97) 35.8 (1.41) 35.8 (1.41) 36.6 (1.44) 36.6 (1.44) 35.8 (1.41) 35.8 (1.41) 36.6 (1.44) 36.6 (1.44) 35.7 (1.41) 35.7 (1.41)
150 6 11.9 (0.47) 11.9 (0.47) 7.2 (0.28) 7.1 (0.28) 7.1 (0.28) 11.9 (0.47) 11.9 (0.47) 7.1 (0.28) 7.1 (0.28) 7.1 (0.28) 7.1 (0.28) 11.9 (0.47) 11.9 (0.47) 16.0 (0.63) 16.0 (0.63) 9.4 (0.38) 9.4 (0.37) 9.4 (0.37) 16.0 (0.63) 16.0 (0.63) 9.4 (0.37) 9.4 (0.37) 9.4 (0.37) 9.4 (0.37) 15.9 (0.63) 15.9 (0.63) 16.7 (0.66) 19.1 (0.75) 19.1 (0.75) 13.1 (0.52) 12.9 (0.51) 12.9 (0.51) 19.1 (0.75) 19.1 (0.75) 12.9 (0.51) 12.9 (0.51) 12.9 (0.51) 12.9 (0.51) 19.0 (0.75) 19.0 (0.75) 26.2 (1.03) 26.2 (1.03) 18.2 (0.72) 18.2 (0.72) 26.2 (1.03) 26.2 (1.03) 18.2 (0.72) 18.2 (0.72) 26.2 (1.03) 25.4 (1) 38.1 (1.50) 38.1 (1.50) 30.2 (1.19) 30.2 (1.19) 38.1 (1.50) 38.1 (1.50) 30.2 (1.19) 30.2 (1.19) 38.1 (1.5) 38.1 (1.5) 48.5 (1.91) 48.5 (1.91) 53.7 (2.11) 53.7 (2.11) 48.5 (1.91) 48.5 (1.91) 53.7 (2.11) 53.7 (2.11) 48.4 (1.91) 48.4 (1.91)
200 8 12.7 (0.50) 12.7 (0.50) 8.0 (0.32) 8 (0.31) 8 (0.31) 12.7 (0.50) 12.7 (0.50) 8 (0.31) 8 (0.31) 8 (0.31) 8 (0.31) 12.7 (0.5) 12.7 (0.5) 17.5 (0.69) 17.5 (0.69) 11.1 (0.44) 11 (0.43) 11 (0.43) 17.5 (0.69) 17.5 (0.69) 11 (0.43) 11 (0.43) 11 (0.43) 11 (0.43) 17.5 (0.69) 17.4 (0.69) 19.0 (0.75) 25.4 (1.00) 25.4 (1.00) 16.3 (0.64) 16.3 (0.64) 16.3 (0.64) 25.4 (1.00) 25.4 (1.00) 16.3 (0.64) 16.3 (0.64) 16.3 (0.64) 16.3 (0.64) 25.4 (1) 25.4 (1) 31.8 (1.25) 31.8 (1.25) 23.4 (0.92) 23.4 (0.92) 31.8 (1.25) 31.8 (1.25) 23.4 (0.92) 23.4 (0.92) 31.8 (1.25) 31.8 (1.25) 47.8 (1.88) 47.8 (1.88) 39.4 (1.55) 39.4 (1.55) 47.8 (1.88) 47.8 (1.88) 39.4 (1.55) 39.4 (1.55) 47.5 (1.87) 47.6 (1.87) 62.0 (2.44) 62.0 (2.44) 70.7 (2.78) 70.7 (2.78) 62.0 (2.44) 62.0 (2.44) 70.7 (2.78) 70.7 (2.78) 61.9 (2.44) 61.9 (2.44)
250 10 14.2 (0.56) 14.2 (0.56) 8.8 (0.35) 8.8 (0.35) 8.8 (0.35) 14.2 (0.56) 14.2 (0.56) 8.8 (0.35) 8.8 (0.35) 8.8 (0.35) 8.8 (0.35) 14.3 (0.56) 13.5 (0.53) 19.1 (0.75) 19.1 (0.75) 12.8 (0.51) 12.7 (0.5) 12.7 (0.5) 19.1 (0.75) 19.1 (0.75) 12.7 (0.5) 12.7 (0.5) 12.7 (0.5) 12.7 (0.5) 19.0 (0.75) 19 (0.75) 21.4 (0.84) 28.7 (1.13) 28.7 (1.13) 19.5 (0.77) 19.7 (0.78) 19.7 (0.78) 28.7 (1.13) 28.7 (1.13) 19.7 (0.78) 19.7 (0.78) 19.7 (0.78) 19.7 (0.78) 28.6 (1.13) 28.6 (1.13) 36.6 (1.44) 36.6 (1.44) 28.7 (1.13) 28.7 (1.13) 36.6 (1.44) 36.6 (1.44) 28.7 (1.13) 28.7 (1.13) 36.5 (1.44) 36.5 (1.44) 57.2 (2.25) 57.2 (2.25) 48.6 (1.91) 48.6 (1.91) 57.2 (2.25) 57.2 (2.25) 48.6 (1.91) 48.6 (1.91) 57.2 (2.25) 57.2 (2.25) 67.6 (2.66) 67.6 (2.66) 87.8 (3.46) 87.8 (3.46) 67.6 (2.66) 67.6 (2.66) 87.8 (3.46) 87.8 (3.46) 67.5 (2.66) 67.5 (2.66)
300 12 16.0 (0.63) 16.0 (0.63) 9.7 (0.38) 9.6 (0.38) 9.6 (0.38) 16.0 (0.63) 16.0 (0.63) 9.6 (0.38) 9.6 (0.38) 9.6 (0.38) 9.6 (0.38) 15.9 (0.63) 15.9 (0.63) 20.6 (0.81) 20.6 (0.81) 14.5 (0.58) 14.3 (0.56) 14.3 (0.56) 20.6 (0.81) 20.6 (0.81) 14.3 (0.56) 14.3 (0.56) 14.3 (0.56) 14.3 (0.56) 20.6 (0.81) 21 (0.83) 23.8 (0.94) 31.8 (1.25) 31.8 (1.25) 22.9 (0.90) 23 (0.91) 23 (0.91) 31.8 (1.25) 31.8 (1.25) 23 (0.91) 23 (0.91) 23 (0.91) 23 (0.91) 31.8 (1.25) 31.8 (1.25) 42.2 (1.66) 42.2 (1.66) 33.9 (1.33) 33.9 (1.33) 42.2 (1.66) 42.2 (1.66) 33.9 (1.33) 33.9 (1.33) 42.1 (1.66) 42.1 (1.66) 66.8 (2.63) 66.8 (2.63) 57.9 (2.28) 57.9 (2.28) 66.8 (2.63) 66.8 (2.63) 57.9 (2.28) 57.9 (2.28) 66.7 (2.63) 66.7 (2.63) 86.6 (3.41) 86.6 (3.41) 104.8 (4.13) 104.8 (4.13) 86.6 (3.41) 86.6 (3.41) 104.8 (4.13) 104.8 (4.13) 86.5 (3.41) 86.5 (3.41)
350 14 16.8 (0.66) 16.8 (0.66) 10.2 (0.40) 10.4 (0.41) 10.4 (0.41) 16.8 (0.66) 16.8 (0.66) 10.4 (0.41) 10.4 (0.41) 10.4 (0.41) 10.4 (0.41) 16.7 (0.66) 16.7 (0.66) 22.4 (0.88) 22.4 (0.88) 15.5 (0.62) 16 (0.63) 16 (0.63) 22.4 (0.88) 22.4 (0.88) 16 (0.63) 16 (0.63) 16 (0.63) 16 (0.63) 22.2 (0.87) 27.0 (1.06) 35.1 (1.38) 35.1 (1.38) 24.9 (0.98) 26.4 (1.04) 26.4 (1.04) 35.1 (1.38) 35.1 (1.38) 26.4 (1.04) 26.4 (1.04) 26.4 (1.04) 26.4 (1.04) 34.9 (1.37) 46.0 (1.81) 46.0 (1.81) 39.1 (1.54) 39.1 (1.54) 46.0 (1.81) 46.0 (1.81) 39.1 (1.54) 39.1 (1.54) 46.0 (1.81) 46.0 (1.81) 69.9 (2.75) 69.9 (2.75) 67.1 (2.64) 67.1 (2.64) 69.9 (2.75) 69.9 (2.75) 67.1 (2.64) 67.1 (2.64) 69.8 (2.75) 69.8 (2.75) 121.9 (4.8) 121.9 (4.8) 121.9 (4.8)
400 16 17.5 (0.69) 17.5 (0.69) 11.0 (0.43) 11.2 (0.44) 11.2 (0.44) 17.5 (0.69) 17.5 (0.69) 11.2 (0.44) 11.2 (0.44) 11.2 (0.44) 11.2 (0.44) 17.5 (0.69) 17.5 (0.69) 23.9 (0.94) 23.9 (0.94) 17.2 (0.68) 17.6 (0.69) 17.6 (0.69) 23.9 (0.94) 23.9 (0.94) 17.6 (0.69) 17.6 (0.69) 17.6 (0.69) 17.6 (0.69) 23.8 (0.94) 28.6 (1.13) 38.1 (1.50) 38.1 (1.50) 28.1 (1.11) 29.8 (1.17) 29.8 (1.17) 38.1 (1.50) 38.1 (1.50) 29.8 (1.17) 29.8 (1.17) 29.8 (1.17) 29.8 (1.17) 38.1 (1.50) 52.3 (2.06) 52.3 (2.06) 44.3 (1.74) 44.3 (1.74) 52.3 (2.06) 52.3 (2.06) 44.3 (1.74) 44.3 (1.74) 52.4 (2.06) 79.5 (3.13) 79.5 (3.13) 76.3 (3) 76.3 (3) 79.5 (3.13) 79.5 (3.13) 76.3 (3) 76.3 (3) 79.4 (3.13) 138.9 (5.47) 138.9 (5.47) 138.9 (5.47)
450 18 18.3 (0.72) 18.3 (0.72) 11.8 (0.47) 12 (0.47) 12 (0.47) 18.3 (0.72) 18.3 (0.72) 12 (0.47) 12 (0.47) 12 (0.47) 12 (0.47) 18.3 (0.72) 25.4 (1.00) 25.4 (1.00) 18.6 (0.74) 19.3 (0.76) 19.3 (0.76) 25.4 (1.00) 25.4 (1.00) 19.3 (0.76) 19.3 (0.76) 19.3 (0.76) 19.3 (0.76) 25.4 (1.00) 30.2 (1.19) 41.4 (1.63) 41.4 (1.63) 31.1 (1.22) 33.2 (1.31) 33.2 (1.31) 41.4 (1.63) 41.4 (1.63) 33.2 (1.31) 33.2 (1.31) 33.2 (1.31) 33.2 (1.31) 41.3 (1.63) 57.2 (2.25) 57.2 (2.25) 49.6 (1.95) 49.6 (1.95) 57.2 (2.25) 57.2 (2.25) 49.6 (1.95) 49.6 (1.95) 57.2 (2.25) 88.9 (3.50) 88.9 (3.50) 85.5 (3.37) 85.5 (3.37) 88.9 (3.50) 88.9 (3.50) 85.5 (3.37) 85.5 (3.37) 88.9 (3.50) 155.9 (6.14) 155.9 (6.14) 155.9 (6.14)
500 20 19.1 (0.75) 19.1 (0.75) 12.7 (0.50) 12.9 (0.51) 12.9 (0.51) 19.1 (0.75) 19.1 (0.75) 12.9 (0.51) 12.9 (0.51) 12.9 (0.51) 12.9 (0.51) 19.0 (0.75) 26.9 (1.06) 26.9 (1.06) 20.3 (0.81) 20.9 (0.82) 20.9 (0.82) 26.9 (1.06) 26.9 (1.06) 20.9 (0.82) 20.9 (0.82) 20.9 (0.82) 20.9 (0.82) 27.0 (1.06) 33.3 (1.31) 44.5 (1.75) 44.5 (1.75) 34.1 (1.34) 36.5 (1.44) 36.5 (1.44) 44.5 (1.75) 44.5 (1.75) 36.5 (1.44) 36.5 (1.44) 36.5 (1.44) 36.5 (1.44) 44.4 (1.75) 63.5 (2.50) 63.5 (2.50) 54.8 (2.16) 54.8 (2.16) 63.5 (2.50) 63.5 (2.50) 54.8 (2.16) 54.8 (2.16) 63.5 (2.50) 98.6 (3.88) 98.6 (3.88) 94.8 (3.73) 94.8 (3.73) 98.6 (3.88) 98.6 (3.88) 94.8 (3.73) 94.8 (3.73) 98.4 (3.87) 173 (6.81) 173 (6.81) 173 (6.81)
600 24 20.6 (0.81) 20.6 (0.81) 14.3 (0.56) 14.5 (0.57) 14.5 (0.57) 20.6 (0.81) 20.6 (0.81) 14.5 (0.57) 14.5 (0.57) 14.5 (0.57) 14.5 (0.57) 20.6 (0.81) 30.2 (1.19) 30.2 (1.19) 23.7 (0.94) 24.2 (0.95) 24.2 (0.95) 30.2 (1.19) 30.2 (1.19) 24.2 (0.95) 24.2 (0.95) 24.2 (0.95) 24.2 (0.95) 30.2 (1.19) 36.5 (1.44) 50.8 (2.00) 50.8 (2.00) 40.5 (1.60) 43.3 (1.7) 43.3 (1.7) 50.8 (2.00) 50.8 (2.00) 43.3 (1.7) 43.3 (1.7) 43.3 (1.7) 43.3 (1.7) 50.8 (2.00) 73.2 (2.88) 73.2 (2.88) 65.2 (2.57) 65.2 (2.57) 73.2 (2.88) 73.2 (2.88) 65.2 (2.57) 65.2 (2.57) 73.0 (2.87) 114.3 (4.50) 114.3 (4.50) 113.2 (4.46) 113.2 (4.46) 114.3 (4.50) 114.3 (4.50) 113.2 (4.46) 113.2 (4.46) 114.3 (4.50) 207.1 (8.15) 207.1 (8.15) 207.1 (8.15)
650 26 21.4 (0.84) 15.3 (0.6) 15.3 (0.6) 21.4 (0.84) 21.4 (0.84) 15.3 (0.6) 15.3 (0.6) 15.3 (0.6) 31.6 (1.24) 25.9 (1.02) 25.9 (1.02) 31.6 (1.24) 31.6 (1.24) 25.9 (1.02) 25.9 (1.02) 25.9 (1.02) 46.7 (1.84) 46.7 (1.84) 46.7 (1.84) 46.7 (1.84) 70.5 (2.78) 70.5 (2.78) 70.5 (2.78) 122.4 (4.82) 122.4 (4.82) 122.4 (4.82) 224.1 (8.82) 224.1 (8.82) 224.1 (8.82)
700 28 22.2 (0.87) 16.1 (0.63) 16.1 (0.63) 22.2 (0.87) 22.2 (0.87) 16.1 (0.63) 16.1 (0.63) 16.1 (0.63) 33.3 (1.31) 27.5 (1.08) 27.5 (1.08) 33.3 (1.31) 33.3 (1.31) 27.5 (1.08) 27.5 (1.08) 27.5 (1.08) 50 (1.97) 50 (1.97) 50 (1.97) 50 (1.97) 75.7 (2.98) 75.7 (2.98) 75.7 (2.98) 131.6 (5.18) 131.6 (5.18) 131.6 (5.18) 241.2 (9.5) 241.2 (9.5) 241.2 (9.5)
750 30 23.0 (0.91) 16.9 (0.67) 16.9 (0.67) 23.0 (0.91) 23.0 (0.91) 16.9 (0.67) 16.9 (0.67) 16.9 (0.67) 34.9 (1.37) 29.2 (1.15) 29.2 (1.15) 34.9 (1.37) 34.9 (1.37) 29.2 (1.15) 29.2 (1.15) 29.2 (1.15) 53.4 (2.1) 53.4 (2.1) 60.5 (2.38) 53.4 (2.1) 53.4 (2.1) 80.9 (3.19) 80.9 (3.19) 80.9 (3.19) 140.9 (5.55) 140.9 (5.55) 140.9 (5.55) 258.2 (10.17) 258.2 (10.17) 258.2 (10.17)
800 32 23.8 (0.94) 17.7 (0.7) 17.7 (0.7) 23.8 (0.94) 23.8 (0.94) 17.7 (0.7) 17.7 (0.7) 17.7 (0.7) 36.0 (1.41) 30.8 (1.21) 30.8 (1.21) 36.0 (1.41) 36.0 (1.41) 30.8 (1.21) 30.8 (1.21) 30.8 (1.21) 56.8 (2.24) 56.8 (2.24) 56.8 (2.24) 56.8 (2.24) 86.1 (3.39) 86.1 (3.39) 86.1 (3.39) 150.1 (5.91) 150.1 (5.91) 150.1 (5.91) 275.3 (10.84) 275.3 (10.84) 275.3 (10.84)
850 34 24.6 (0.97) 18.6 (0.73) 18.6 (0.73) 24.6 (0.97) 24.6 (0.97) 18.6 (0.73) 18.6 (0.73) 18.6 (0.73) 38.1 (1.50) 32.5 (1.28) 32.5 (1.28) 38.1 (1.50) 38.1 (1.50) 32.5 (1.28) 32.5 (1.28) 32.5 (1.28) 60.2 (2.37) 60.2 (2.37) 60.2 (2.37) 60.2 (2.37) 91.4 (3.6) 91.4 (3.6) 91.4 (3.6) 159.3 (6.27) 159.3 (6.27) 159.3 (6.27) 292.3 (11.51) 292.3 (11.51) 292.3 (11.51)
900 36 25.3 (1.00) 19.4 (0.76) 19.4 (0.76) 25.4 (1.00) 25.3 (1.00) 19.4 (0.76) 19.4 (0.76) 19.4 (0.76) 39.6 (1.56) 34.1 (1.34) 34.1 (1.34) 39.96 (1.56) 39.6 (1.56) 34.1 (1.34) 34.1 (1.34) 34.1 (1.34) 63.5 (2.5) 63.5 (2.5) 70.4 (2.77) 63.5 (2.5) 63.5 (2.5) 96.6 (3.8) 96.6 (3.8) 96.6 (3.8) 168.5 (6.63) 168.5 (6.63) 168.5 (6.63) 309.4 (12.18) 309.4 (12.18) 309.4 (12.18)
950 38 26.1 (1.03) 20.2 (0.79) 20.2 (0.79) 26.1 (1.03) 20.2 (0.79) 20.2 (0.79) 41.3 (1.63) 35.8 (1.41) 35.8 (1.41) 41.03 (1.69) 35.8 (1.41) 35.8 (1.41) 66.9 (2.63) 66.9 (2.63) 66.9 (2.63) 66.9 (2.63) 101.8 (4.01) 101.8 (4.01) 101.8 (4.01) 177.7 (7) 177.7 (7) 177.7 (7) 326.4 (12.85) 326.4 (12.85) 326.4 (12.85)
1000 40 27.0 (1.06) 21 (0.83) 21 (0.83) 27.0 (1.06) 21 (0.83) 21 (0.83) 43.0 (1.69) 37.4 (1.47) 37.4 (1.47) 43.0 (1.69) 37.4 (1.47) 37.4 (1.47) 70.3 (2.77) 70.3 (2.77) 70.3 (2.77) 70.3 (2.77) 107 (4.21) 107 (4.21) 107 (4.21) 187 (7.36) 187 (7.36) 187 (7.36) 343.5 (13.52) 343.5 (13.52) 343.5 (13.52)
1050 42 27.7 (1.09) 21.8 (0.86) 21.8 (0.86) 27.7 (1.09) 21.8 (0.86) 21.8 (0.86) 44.4 (1.75) 39.1 (1.54) 39.1 (1.54) 44.4 (1.75) 39.1 (1.54) 39.1 (1.54) 73.7 (2.9) 73.7 (2.9) 80.0 (3.15) 73.7 (2.9) 73.7 (2.9) 112.3 (4.42) 112.3 (4.42) 112.3 (4.42) 196.2 (7.72) 196.2 (7.72) 196.2 (7.72) 360.5 (14.19) 360.5 (14.19) 360.5 (14.19)

  1. API 623 MIRRORS API 600. API 623 APPLICABLE TO CLASS 150-1500 AND SIZES 2″ TO 24″, AND FOR CLASS 2500, SIZE 2″ TO 12″
  2. APPLIES TO TYPE A, B, MATERIALS PER ASME B16.34 GROUP 2,3
  3. APPLIES TO TYPE A CLASS 150-300 IN DUCTILE IRON AND TYPE A, B MATERIALS PER ASME B16.34 GROUP 1
  4. APPLIES TO TYPE A, B, MATERIALS PER ASME B16.34 GROUP 1
  5. WALL THICKNESS VALUES ALSO APPLY TO PN16, PN25, PN40, PN63, AND PN100
  6. FOR LUBRICATED PLUG VALVES WITH VALVE BODIES OF ASME B16.34, GROUP 1 MATERIAL
  7. FOR LUBRICATED PLUG VALVES WITH VALVE BODIES OF ASME B16.34, GROUP 2 AND 3 MATERIAL and FOR NON-LUBRICATED PLUG VALVE BODIES OF ASME B16.34 GROUP 1, 2, AND 3 MATERIAL

* Wall thickness for API 6D valves follows ASME B16.34

** For API 602, the minimum wall thickness of internal socket-welding ends shall be in accordance with ASME B16.34, ‘Minimum Wall Thickness for Socket Welding and Threaded End’.     

For ISO 15761, the minimum wall thickness of internal socket-welding ends shall be in accordance with Table 5 from this standard.

*** ASME B16.34 GROUP 1 materials are carbon and low-alloyed steels ASME B16.34 GROUP 2 materials are stainless and duplex steels

ASME B16.34 GROUP 3 materials are nickel and nickel alloys steels
ASME B16.34 VALVES – FLANGED, THREADED AND WELDING END API 6D SPECIFICATION FOR VALVES (Axial, Ball, Check, Gate, and Plug valves)

API 594 CHECK VALVES: FLANGED, LUG, WAFER, AND BUTT-WELDING (Swing check and Wafer check valves)
API 599 METAL PLUG VALVES-FLANGED, THREADED, AND WELDING ENDS
API 600 STEEL GATE VALVE – FLANGED AND BUTT-WELDING ENDS, BOLTED BONNETS
API 602 GATE, GLOBE, AND CHECK VALVES FOR SIZES DN 100 (NPS 4) AND SMALLER FOR THE PETROLEUM AND NATURAL GAS INDUSTRIES
API 603 CORROSION-RESISTANT, BOLTED BONNET GATE VALVES – FLANGED AND BUTT-WELDING ENDS API 608 METAL BALL VALVES – FLANGED, THREADED, AND WELDING ENDS
API 609 BUTTERFLY VALVES: DOUBLE-FLANGED, LUG- AND WAFER-TYPE, AND BUTT-WELDING ENDS
API 623 STEEL GLOBE VALVES – FLANGED AND BUTT-WELDING ENDS, BOLTED BONNETS BS 1868 STEEL CHECK VALVES (FLANGED AND BUTT-WELDING ENDS) FOR THE PETROLEUM, PETROCHEMICAL AND ALLIED INDUSTRIES BS 1873 STEEL GLOBE AND GLOBE STOP AND CHECK VALVES (FLANGED AND BUTT-WELDING ENDS) FOR THE PETROLEUM, PETROCHEMICAL AND ALLIED INDUSTRIES (Swing check, and Piston check valves for horizontal, angle, and vertical flow) ISO 15761 STEEL GATE, GLOBE AND CHECK VALVES FOR SIZES DN100 AND SMALLER, FOR THE PETROLEUM AND NATURAL GAS INDUSTRIES

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