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10" NB (DN250) Flange Table - Flange Dimensions

1/2" Flange Diameter PCD No. of Bolt Holes Diameter of Bolts Diameter of Holes Diameter of Raised Face Height of Raised Face
PN6 375mm 335mm 12 M16 18mm 312mm 3mm
PN10 395mm 350mm 12 M20 22m 320mm 3mm
PN16 405mm 355mm 12 M24 26mm 320mm 3mm
PN25 425mm 370mm 12 M27 30mm 335mm 3mm
PN40 450mm 385mm 12 M30 33mm 345mm 3mm
PN64 470mm 400mm 12 M33 36mm 345mm 3mm
Table D 16" (406mm) 14" (356mm) 8 3/4" (19mm) 7/8" (22mm)    
Table E 16" (406mm) 14" (356mm) 12 3/4" (19mm) 7/8" (22mm)    
Table F 17" (432mm) 15" (381mm) 12 7/8" (22mm) 1" (25mm)    
Table H 17" (432mm) 15" (381mm) 12 7/8" (22mm) 1" (25mm) 12 1/4" (311mm) 1/16" (2mm)
ANSI 125/150 16" (406mm) 14 1/4" (362mm) 12 7/8" (22mm) 1" (25mm) 12 3/4" (324mm) 1/16" (2mm)
ANSI 300 17 1/2" (445mm) 15 1/4" (387mm) 16 1" (25mm) 1 1/8" (29mm) 12 3/4" (324mm) 1/16" (2mm)

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