Source of Data

Bolting Dimensions are as per ASME B16.5 : Pipe Flanges and Flanged Fittings

Dimension Terms

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

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) Length of stud bolt does not include the height of the points. See para. 6.10.2 of ASME B16.5

(2) For flange bolt holes, seel para 6.5 of ASME B16.5

(3) For spot facing, see para. 6.6 of ASME B16.5

Bolt length not shown in table may be determined with Annex D. See para 6.10.2 of ASME B16.5