Source of Data

Bolting Dimensions are as per ASME B16.47 : Large Diameter Steel Flanges

Dimension Terms

• FOD : Flange Outside Diameter
• BCD : Bolt Circle Diameter
• BHD : Bolt Hole diameter : In Inches only
• BD : Bolt Diameter : in Inches Only

General Notes

(a). All dimensions are in millimeters and inches as selected. But diameters of bolts and bolt holes are only in inches.

(b). For other dimensions, see corresponding flange dimensions.

NOTES:

(1) For flange bolt holes, seel para 6.2 of ASME B16.47

(2) For spot facing, see para. 6.3 of ASME B16.47