Dimensions Socket Weld Flanges & Stud Bolts ASME B16.5



Socket Weld flange

OTHER DIAMETERS

NPS 2 - ID = 62.0 - F = 17.5

CLass 150 300 600 900 1500 2500
DIA
A
78 84 84 ... 105 ...
DIA
D
150 165 165 ... 215 ...
THK
B
17.5 20.7 25.4 ... 38.1 ...
19.1 22.3 31.8 ... 44.5 ...
DIA
G
91.9 91.9 91.9 ... 91.9 ...
DIA
K
120.7 127 127 ... 165.1 ...
H 24 32 37 ... 57 ...
25.6 33.6 43.4 ... 63.4 ...
NO.
L
4 8 8 ... 8 ...
DIA
L
19.1 19.1 19.1 ... 25.4 ...
Stud Bolts Diameter x Length
DIA
(in)
5/8 5/8 5/8 ... 7/8 ...
Lenght
(mm)
85 90 110 ... 145 ...

Important Information

Notes..

  • Dimensions are in millimeters unless otherwise indicated.
  • The length of the Stud Bolt does not include the height of the chamfers (points).
  • ID2 = Depending on the wall thickness of the pipe, must be specified by the purchaser.

Dimensional Tolerances of Socket Weld Flanges ASME B16.5
Outside Diameter *
Tolerances not listed in ASME B16.5 2013
≤ 24 = 1.6 mm
> 24 = ± 3.2 mm
Inside Diameter
≤ 10 = ± 0.8 mm
≥ 12 = + 1.6 mm / - 0 mm
Outside Diameter of Hub
≤ 12 = + 2.4 mm / - 1.6 mm
≥ 14 = ± 3.2 mm
Diameter of Counterbore
Same as for Inside Diameter
Drilling
Bolt Circle = 1.6 mm
Bolt Hole Spacing = ± 0.8 mm
Eccentricity of Bolt Circle
≤ 2.1/2 = 0.8 mm max.
≥ 3 = 1.6 mm max.
Thickness
≤ 18 = + 3.2 mm / - 0
≥ 20 = + 4.8 mm / - 0
Length thru Hub
≤ 18 = + 3.2 mm / - 0.8 mm
≥ 20 = + 4.8 mm / - 1.6 mm
Diameter of Contact Face
1.6 mm Raised Face = ± 0.8 mm
6.35 mm Raised Face
Tongue and Groove / Male-Female
± 0.4 mm


Studs are measured parallel to the axis (L) from the first to the thread without the chamfers (points). S = free threads equals 1/3 time bolt dia

Measuring lengths of Stud Bolts


Hex bolts are measured from under the head to the top of de bolt


Measuring lengths of Hex bolts


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