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2 1/2" NB (DN65) Flange Table - Flange Dimensions

2 1/2" Flange Diameter PCD No. of Bolt Holes Diameter of Bolts Diameter of Holes Diameter of Raised Face Height of Raised Face
PN6 160mm 130mm 4 M14 14mm 110mm 3mm
PN10 185mm 145mm 4 M18 18mm 122mm 3mm
PN16 185mm 145mm 4 M18 18mm 122mm 3mm
PN25 185mm 145mm 8 M18 18mm 122mm 3mm
PN40 185mm 145mm 8 M18 18mm 122mm 3mm
PN64 205mm 160mm 8 M22 22mm 122mm 3mm
Table D 6 1/2" (165mm) 5" (127mm) 4 5/8" (16mm) 11/16" (17mm)    
Table E 6 1/2" (165mm) 5" (127mm) 4 5/8" (16mm) 11/16" (17mm)    
Table F 7 1/4" (184mm) 5 3/4" (146mm) 8 5/8" (16mm) 11/16" (17mm)    
Table H 7 1/4" (184mm) 5 3/4" (146mm) 8 5/8" (16mm) 11/16" (17mm) 4 1/2" (114mm) 1/16" (2mm)
ANSI 125/150 7" (178mm) 5 1/2" (140mm) 4 5/8" (16mm) 3/4" (19mm) 4 1/8" (105mm) 1/16" (2mm)
ANSI 300 7 1/2" (191mm) 5 7/8" (149mm) 8 3/4" (19mm) 7/8" (22mm) 4 1/8" (105mm) 1/16" (2mm)

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