Dimensions Lap Joint Flanges & Stud Bolts ASME B16.5
| OTHER DIA | NPS 14 ID=360.2 r=13 | |||||
| CLass | 150 | 300 | 600 | 900 | 1500 | 2500 |
| DIA A | 400 | 425 | 432 | 451 | 495 | ... |
| DIA D | 535 | 585 | 605 | 640 | 750 | ... |
| THK B | 35 | 54 | 69.9 | 85.8 | 133.4 | ... |
| DIA K | 476.3 | 514.4 | 527 | 558.8 | 635 | ... |
| H | 79 | 111 | 127 | 156 | 241 | ... |
| NO. L | 12 | 20 | 20 | 20 | 16 | ... |
| DIA L | 28.6 | 31.8 | 38.1 | 41.3 | 60.3 | ... |
| Stud Bolts Diameter x Length | ||||||
| DIA (in) | 1 | 1.1/8 | 1.3/8 | 1.1/2 | 2.1/4 | ... |
| lgth (mm) | 135 | 180 | 235 | 275 | 405 | ... |
Notes..
- Dimensions are in millimeters unless otherwise indicated.
- The length of the Stud Bolt does not include the height of the chamfers (points).
- Important! please read this short article
Dimensional Tolerances of Lap Joint Flanges ASME B16.5
Outside Diameter *
Tolerances not listed in ASME B16.5 2013
≤ 24 = 1.6 mm
> 24 = ± 3.2 mm
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
≤ 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
≤ 12 = + 2.4 mm / - 1.6 mm
≥ 14 = ± 3.2 mm
Diameter of Counterbore
Same as for Inside Diameter
Same as for Inside Diameter
Drilling
Bolt Circle = 1.6 mm
Bolt Hole Spacing = ± 0.8 mm
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.
≤ 2.1/2 = 0.8 mm max.
≥ 3 = 1.6 mm max.
Thickness
≤ 18 = + 3.2 mm / - 0
≥ 20 = + 4.8 mm / - 0
≤ 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
≤ 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
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
Hex bolts are measured from under the head to the top of de bolt
