FLANGE TABLE SPECIFICATIONS

American National Standards Institute

FLANGE TABLE SPECIFICATIONS

American National Standards Institute

ANSI 125/150

DN FLANGE PCD BOLTS HOLE SIZE THICKNESS
DIAMETER GREY CAST IRON COPPER ALLOY CAST/FORGED STEEL
15 3 1/2" / 89mm 2 3/8" / 60mm 4 5/8" / 16mm   5/16" / 8mm 5/16" / 8mm
20 3 7/8" / 98mm 2 3/4" / 70mm 4 5/8" / 16mm 11/32" / 9mm 9/16" / 14mm
25 4 1/4" / 108mm 3 1/8" / 79mm 4 5/8" / 16mm 7/16" / 11mm 3/8" / 10mm 7/16" / 11mm
32 4 5/8" / 117mm 3 1/2" / 89mm 4 5/8" / 16mm 1/2" / 13mm 13/32" / 10mm 1/2" / 13mm
40 5" / 127mm 3 7/8" / 98mm 4 5/8" / 16mm 9/16" / 14mm 7/16" / 11mm 9/16" / 14mm
50 6" / 152mm 4 3/4" / 121mm 4 3/4" / 19mm 5/8" / 16mm 1/2" / 13mm 5/8" / 16mm
65 7" / 178mm 5 1/2" / 140mm 4 3/4" / 19mm 11/16" / 17mm 9/16" / 14mm 11/16" / 17mm
80 7 1/2" / 191mm 6" / 152mm 4 3/4" / 19mm 3/4" / 19mm 5/8" / 16mm 3/4" / 19mm
100 9" / 229mm 7 1/2" / 191mm 8 3/4" / 19mm 15/16" / 24mm 11/16" / 17mm 15/16" / 24mm
125 10" / 254mm 8 1/2" / 216mm 8 7/8" / 22mm 15/16" / 24mm 3/4" / 19mm 15/16" / 24mm
150 11" / 279mm 9 1/2" / 241mm 8 7/8" / 22mm 1" / 25mm 13/16" / 21mm 1" / 25mm
200 13 1/2" / 343mm 11 3/4" / 298mm 8 7/8" / 22mm 1 1/8" / 29mm 15/16" / 24mm 1 1/8" / 29mm
250 16" / 406mm 14 1/4" / 362mm 12 1" / 25mm 1 3/16" / 30mm 1" / 25mm 1 3/16" / 30mm
300 19" / 483mm 17" / 432mm 12 1" / 25mm 1 1/4" / 32mm 1 1/16" / 27mm 1 1/4" / 32mm
350 21" / 533mm 18 3/4" / 476mm 12 1 1/8" / 29mm 1 3/8" / 35mm 1 3/8" / 35mm
400 23 1/2" / 597mm 21 1/4" / 540mm 16 1 1/8" / 29mm 1 7/16" / 37mm 1 7/16" / 37mm
450 25" / 635mm 22 3/4" / 578mm 16 1 1/4" / 32mm 1 9/16" / 40mm 1 9/16" / 40mm
500 27 1/2" / 699mm 25" / 635mm 20 1 1/4" / 32mm 1 11/16" / 43mm 1 11/16" / 43mm
600 32" / 813mm 29 1/2" / 749mm 20 1 3/8" / 35mm 1 7/8" / 48mm 1 7/8" / 48mm

ANSI 300

DN FLANGE PCD BOLTS HOLE SIZE THICKNESS
  DIAMETER     GREY CAST IRON COPPER ALLOY CAST/FORGED STEEL
15 4 5/8" / 117mm 3 1/4" / 83mm 4 3/4" / 19mm 17/32" / 13mm 5/8" / 16mm
20 4 7/8" / 124mm 3 1/2" / 89mm 4 3/4" / 19mm 19/32" / 15mm 11/16" / 17mm
25 5 1/4" / 133mm 3 7/8" / 98mm 4 3/4" / 19mm 5/8" / 16mm 3/4" / 19mm
32 6 1/8" / 156mm 4 1/2" / 114mm 4 7/8" / 22mm 11/16" / 17mm 13/16" / 21mm
40 6 1/2" / 165mm 5" / 127mm 8 3/4" / 19mm 3/4" / 19mm 7/8" / 22mm
50 7 1/2" / 191mm 5 7/8" / 149mm 8 7/8" / 22mm 13/16" / 21mm 1" / 25mm
65 8 1/4" / 210mm 6 5/8" / 168mm 8 7/8" / 22mm 29/32" / 23mm 1 1/8" / 29mm
80 10" / 254mm 7 7/8" / 200mm 8 7/8" / 22mm 1 1/16" / 27mm 1 1/4" / 32mm
100 11" / 279mm 9 1/4" / 235mm 8 7/8" / 22mm 1 1/8" / 29mm 1 3/8" / 35mm
125 12 1/2" / 318mm 10 5/8" / 270mm 12 7/8" / 22mm 1 3/16" / 30mm 1 7/16" / 37mm
150 15" / 381mm 13" / 330mm 12 1" / 25mm 1 3/8" / 35mm 1 5/8" / 41mm
200 17 1/2" / 445mm 15 1/4" / 387mm 16 1 1/8" / 29mm 1 7/8" / 48mm
250 20 1/2" / 521mm 17 3/4" / 451mm 16 1 1/4" / 32mm 2" / 51mm
300 23" / 584mm 20 1/4" / 514mm 20 1 1/4" / 32mm 2 1/8" / 54mm
350 25 1/2" / 648mm 22 1/2" / 572mm 20 1 3/8" / 35mm 2 1/4" / 57mm
400 28" / 711mm 24 3/4" / 629mm 24 1 3/8" / 35mm 2 3/8" / 60mm
450 30 1/2" / 775mm 27" / 686mm 24 1 3/8" / 35mm 2 1/2" / 64mm
500 36" / 914mm 32" / 813mm 24 1 5/8" / 41mm 2 3/4" / 70mm
600

ANSI 600

DN FLANGE PCD BOLTS HOLE SIZE THICKNESS
  DIAMETER     GREY CAST IRON COPPER ALLOY CAST/FORGED STEEL
15 3 3/4" / 95mm 2 5/8" / 67mm 4 5/8" / 16mm 9/16" / 14mm
20 4 5/8" / 117mm 3 1/4" / 83mm 4 3/4" / 19mm 5/8" / 16mm
25 4 7/8" / 124mm 3 1/2" / 89mm 4 3/4" / 19mm 11/16" / 17mm
32 5 1/4" / 133mm 3 7/8" / 98mm 4 3/4" / 19mm 13/16" / 21mm
40 6 1/8" / 156mm 4 1/2" / 114mm 4 7/8" / 22mm 7/8" / 22mm
50 6 1/2" / 165mm 5" / 127mm 8 3/4" / 19mm 1" / 25mm
65 7 1/2" / 191mm 5 7/8" / 149mm 8 7/8" / 22mm 1 1/8" / 29mm
80 8 1/4" / 210mm 6 5/8" / 168mm 8 7/8" / 22mm 1 1/4" / 32mm
100 10 3/4" / 273mm 8 1/2" / 216mm 8 1" / 25mm 1 1/2" / 38mm
125 13" / 330mm 10 1/2" / 267mm 8 1 1/8" / 29mm 1 3/4" / 44mm
150 14" / 356mm 11 1/2" / 292mm 12 1 1/8" / 29mm 1 7/8" / 48mm
200 16 1/2" / 419mm 13 3/4" / 349mm 12 1 1/4" / 32mm 2 3/16" / 56mm
250 20" / 508mm 17" / 432mm 16 1 3/8" / 35mm 2 1/2" / 64mm
300 22" / 559mm 19 1/4" / 489mm 20 1 3/8" / 35mm 2 5/8" / 67mm
350 23 3/4" / 603mm 20 3/4" / 527mm 20 1 1/2" / 38mm 2 3/4" / 70mm
400 27 1/2" / 699mm 23 3/4" / 603mm 20 1 5/8" / 41mm 3" / 76mm
450 29 1/4" / 743mm 25 3/4" / 654mm 20 1 3/4" / 44mm 3 1/4" / 83mm
500 32" / 813mm 28 1/2" / 724mm 24 1 3/4" / 44mm 3 1/2" / 89mm
600 37" / 940mm 33" / 838mm 24 2" / 51mm 4" / 102mm

ANSI 900

DN FLANGE PCD BOLTS HOLE SIZE THICKNESS
  DIAMETER     GREY CAST IRON COPPER ALLOY CAST/FORGED STEEL
15 4 3/4" / 121mm 3 1/4" / 83mm 4 7/8" / 22mm 7/8" / 22mm
20 5 1/8" / 130mm 3 1/2" / 89mm 4 7/8" / 22mm 1" / 25mm
25 5 7/8" / 149mm 4" / 102mm 4 1" / 25mm 1 1/8" / 29mm
32 6 1/4" / 159mm 4 3/8" / 111mm 4 1" / 25mm 1 1/8" / 29mm
40 7" / 178mm 4 7/8" / 124mm 4 1 1/8" / 29mm 1 1/4" / 32mm
50 8 1/2" / 216mm 6 1/2" / 165mm 8 1" / 25mm 1 1/2" / 38mm
65 9 5/8" / 244mm 7 1/2" / 191mm 8 1 1/8" / 29mm 1 5/8" / 41mm
80 9 1/2" / 241mm 7 1/2" / 191mm 8 1" / 25mm 1 1/2" / 38mm
100 11 1/2" / 292mm 9 1/4" / 235mm 8 1 1/4" / 32mm 1 3/4" / 44mm
125 13 3/4" / 349mm 11" / 279mm 8 1 3/8" / 35mm 2" / 51mm
150 15" / 381mm 12 1/2" / 318mm 12 1 1/4" / 32mm 2 3/16" / 56mm
200 18 1/2" / 470mm 15 1/2" / 394mm 12 1 1/2" / 38mm 2 1/2" / 64mm
250 21 1/2" / 546mm 18 1/2" / 470mm 16 1 1/2" / 38mm 2 3/4" / 70mm
300 24" / 610mm 21" / 533mm 20 1 1/2" / 38mm 3 1/8" / 79mm
350 25 1/4" / 641mm 22" / 559mm 20 1 5/8" / 41mm 3 3/8" / 86mm
400 27 3/4" / 705mm 24 1/4" / 616mm 20 1 3/4" / 44mm 3 1/2" / 89mm
450 31" / 787mm 27" / 686mm 20 2" / 51mm 4" / 102mm
500 33 1/4" / 845mm 29 1/2" / 749mm 20 2 1/8" / 54mm 4 1/4" / 108mm
600 41" / 1041mm 34" / 864mm 20 2 5/8" / 67mm 5 1/2" / 140mm

ANSI 1500

DN FLANGE PCD BOLTS HOLE SIZE THICKNESS
  DIAMETER     GREY CAST IRON COPPER ALLOY CAST/FORGED STEEL
15 4 3/4" / 121mm 3 1/4" / 83mm 4 7/8" / 22mm 7/8" / 22mm
20 5 1/8" / 130mm 3 1/2" / 89mm 4 7/8" / 22mm 1" / 25mm
25 5 7/8" / 149mm 4" / 102mm 4 1" / 25mm 1 1/8" / 29mm
32 6 1/4" / 159mm 4 3/8" / 111mm 4 1" / 25mm 1 1/8" / 29mm
40 7" / 178mm 4 7/8" / 124mm 4 1 1/8" / 29mm 1 1/4" / 32mm
50 8 1/2" / 216mm 6 1/2" / 165mm 8 1" / 25mm 1 1/2" / 38mm
65 9 5/8" / 244mm 7 1/2" / 191mm 8 1 1/8" / 29mm 1 5/8" / 41mm
80 10 1/2" / 267mm 8" / 203mm 8 1 1/4" / 32mm 1 7/8" / 48mm
100 12 1/4" / 311mm 9 1/2" / 241mm 8 1 3/8" / 35mm 2 1/8" / 54mm
125 14 3/4" / 375mm 11 1/2" / 292mm 8 1 5/8" / 41mm 2 7/8" / 73mm
150 15 1/2" / 394mm 12 1/2" / 318mm 12 1 1/2" / 38mm 3 1/4" / 83mm
200 19" / 483mm 15 1/2" / 394mm 12 1 3/4" / 44mm 3 5/8" / 92mm
250 23" / 584mm 19" / 483mm 12 2" / 51mm 4 1/4" / 108mm
300 26 1/2" / 673mm 22 1/2" / 572mm 16 2 1/8" / 54mm 4 7/8" / 124mm
350 29 1/2" / 749mm 25" / 635mm 16 2 3/8" / 60mm 5 1/4" / 133mm
400 32 1/2" / 826mm 27 3/4" / 705mm 16 2 5/8" / 67mm 5 3/4" / 146mm
450 36" / 914mm 30 1/2" / 775mm 16 2 7/8" / 73mm 6 3/8" / 162mm
500 38 3/4" / 984mm 32 3/4" / 832mm 16 3 1/8" / 79mm 7" / 178mm
600 46" / 1168mm 39" / 991mm 16 3 5/8" / 92mm 8" / 203mm