Flange Bolt Chart
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Flange
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NPS 16
Class 400
Dimensions for NPS 16 Class 400 generic flange
25.5
22.5
X
2.5
Field
Value
Notes
Outside Diameter of Flange (O)
25-1/2"
Note
Minimum Thickness of Flange (tf)
2-1/2"
Note
Diameter of Bolt Circle (W)
22-1/2"
Note
Flange dimensions in seconds.
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