Flange Bolt Chart
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Flange
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NPS 44
Class 150
Dimensions for NPS 44 Class 150 generic flange
55.25
51.75
X
3.94
Field
Value
Notes
Outside Diameter of Flange (O)
55-1/4"
Note
Minimum Thickness of Flange (tf)
3-15/16"
Note
Diameter of Bolt Circle (W)
51-3/4"
Note
Flange dimensions in seconds.
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