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Amco Metals Blind Flanges

ANSI B 16.5 Class 150 lb
ANSI B 16.5
Pipe Flange Data Raised Face Drilling Data Weight
A C G H I J
Outside Diameter In Mm Overall Diameter In Mm Flange Thickness min In Mm Face Diameter In Mm Number of Holes Bolt Hole Diameter In Mm Diameter of Circle of Holes In Mm Kg/ Piece
½ 0.840 3.500 0.440 1.380 4 0.620 2.380 0.42
21.30 88.90 11.20 35.10 15.70 60.45
¾ 1.050 3.880 0.500 1.690 4 0.620 2.750 0.61
26.70 98.60 12.70 42.90 15.70 69.85
1 1.315 4.250 0.560 2.000 4 0.620 3.120 0.86
33.40 108.0 14.20 50.80 15.70 79.25
1 ¼ 1.660 4.620 0.620 2.500 4 0.620 3.500 1.17
42.20 117.3 15.70 63.50 15.70 88.90
1 ½ 1.900 5.000 0.690 2.880 4 0.620 3.880 1.53
48.30 127.0 17.50 73.15 15.70 98.60
2 2.375 6.000 0.750 3.620 4 0.750 4.750 2.42
60.30 152.4 19.10 91.90 19.10 120.7
2 ½ 2.875 7.000 0.880 4.120 4 0.750 5.500 3.94
73.00 177.8 22.40 104.6 19.10 139.7
3 3.500 7.500 0.940 5.000 4 0.750 6.000 4.93
88.90 190.5 23.90 127.0 19.10 152.4
3 ½ 4.000 8.500 0.940 5.500 8 0.750 7.000 6.17
101.6 215.9 23.90 139.7 19.10 177.8
4 4.500 9.000 0.940 6.190 8 0.750 7.500 7.00
114.3 228.6 23.90 157.2 19.10 190.5
5 5.563 10.00 0.940 7.310 8 0.880 8.500 8.63
141.3 254.0 23.90 185.7 22.40 215.9
6 6.625 11.00 1.000 8.500 8 0.880 9.500 11.3
168.3 279.4 25.40 215.9 22.40 241.3
8 8.625 13.50 1.120 10.62 8 0.880 11.75 19.6
219.1 342.9 28.40 269.7 22.40 298.5
10 10.75 16.00 1.190 12.75 12 1.000 14.25 28.8
273.0 406.4 30.20 323.8 25.40 362.0
12 12.75 19.00 1.250 15.00 12 1.000 17.00 43.2
323.8 482.6 31.75 381.0 25.40 431.8
14 14.00 21.00 1.380 16.25 12 1.120 18.75 58.1
355.6 533.4 35.10 412.7 28.40 476.3
16 16.00 23.50 1.440 18.50 16 1.120 21.25 76.0
406.4 596.9 36.60 469.9 28.40 539.8
18 18.00 25.00 1.560 21.00 16 1.250 22.75 93.7
457.2 635.0 39.60 533.4 31.75 577.9
20 20.00 27.50 1.690 23.00 20 1.250 25.00 122
508.0 698.5 42.90 584.2 31.75 635.0
24 24.00 32.00 1.880 27.25 20 1.380 29.50 185
609.6 812.8 47.80 692.1 35.10 749.3

Notes
  • Weights are based on manufacturer's data and are approximate.
  • Flat face flanges may be provided at full thickness, C, or with raised face removed (the latter is non standard)



ANSI B 16.5 Class 300 lb
Blind Flanges
Pipe Flange Data Raised Face Drilling Data Weight
A C G H I J
Outside Diameter In Mm Overall Diameter In Mm Flange Thickness min In Mm Face Diameter In Mm Number of Holes Bolt Hole Diameter In Mm Diameter of Circle of Holes In Mm Kg/ Piece
½ 0.840 3.750 0.560 1.380 4 0.620 2.620 0.64
21.30 95.30 14.20 35.10 15.70 66.55
¾ 1.050 4.620 0.620 1.690 4 0.750 3.250 1.11
26.70 117.3 15.70 42.90 19.00 82.50
1 1.315 4.880 0.690 2.000 4 0.750 3.500 1.39
33.40 124.0 17.50 50.80 19.00 88.90
1 ¼ 1.660 5.250 0.750 2.500 4 0.750 3.880 1.79
42.20 133.4 19.00 63.50 19.00 98.50
1 ½ 1.900 6.120 0.810 2.880 4 0.880 4.500 2.66
48.30 155.4 20.60 73.15 22.30 114.3
2 2.375 6.500 0.880 3.620 8 0.750 5.000 3.18
60.30 165.1 22.30 91.90 19.00 127.0
2 ½ 2.875 7.500 1.000 4.120 8 0.880 5.880 4.85
73.00 190.5 25.40 104.6 22.30 149.3
3 3.500 8.250 1.120 5.000 8 0.880 6.620 6.81
88.90 209.6 28.40 127.0 22.30 168.1
3 ½ 4.000 9.000 1.190 5.500 8 0.880 7.250 8.71
101.6 228.6 30.20 139.7 22.30 184.1
4 4.500 10.00 1.250 6.190 8 0.880 7.880 11.5
114.3 254.0 31.70 157.2 22.30 200.1
5 5.563 11.00 1.380 7.310 8 0.880 9.250 15.6
141.3 279.4 35.00 185.7 22.30 234.9
6 6.625 12.50 1.440 8.500 12 0.880 10.62 20.9
168.3 317.5 36.50 215.9 22.30 269.7
8 8.625 15.00 1.620 10.62 12 1.000 13.00 34.3
219.1 381.0 41.10 269.7 25.40 330.2
10 10.75 17.50 1.880 12.75 16 1.120 15.25 53.3
273.0 444.5 47.70 323.8 28.40 387.3
12 12.75 20.50 2.000 15.00 16 1.250 17.75 78.8
323.8 520.7 50.80 381.0 31.70 450.8
14 14.00 23.00 2.120 16.25 20 1.250 20.25 105
355.6 584.2 53.80 412.7 31.70 514.3
16 16.00 25.50 2.250 18.50 20 1.380 22.50 137
406.4 647.7 57.15 469.9 35.00 571.5
18 18.00 28.00 2.380 21.00 24 1.380 24.75 175
457.2 711.2 60.45 533.4 35.00 628.6
20 20.00 30.50 2.500 23.00 24 1.380 27.00 221
508.0 774.7 63.50 584.2 35.00 685.8
24 24.00 36.00 2.750 27.25 24 1.620 32.00 339
609.6 914.4 69.85 692.1 41.10 812.8

Notes
  • Weights are based on manufacturer's data and are approximate.
  • Flat face flanges may be provided at full thickness, C, or with raised face removed (the latter is non standard)



ANSI B 16.5 Class 600 lb
Blind Flanges
Pipe Flange Data Raised Face Drilling Data Weight
A C G H I J
Outside Diameter In Mm Overall Diameter In Mm Flange Thickness min In Mm Face Diameter In Mm Number of Holes Bolt Hole Diameter In Mm Diameter of Circle of Holes In Mm Kg/ Piece
½ 0.840 3.750 0.560 1.380 4 0.620 2.620 0.76
21.30 95.30 14.20 35.10 15.70 66.55
¾ 1.050 4.620 0.620 1.690 4 0.750 3.250 1.28
26.70 117.3 15.70 42.90 19.10 82.60
1 1.315 4.880 0.690 2.000 4 0.750 3.500 1.60
33.40 124.0 17.50 50.80 19.10 88.90
1 ¼ 1.660 5.250 0.810 2.500 4 0.750 3.880 2.23
42.20 133.4 20.60 63.50 19.10 98.60
1 ½ 1.900 6.120 0.880 2.880 4 0.880 4.500 3.25
48.30 155.4 22.40 73.15 22.40 114.3
2 2.375 6.500 1.000 3.620 8 0.750 5.000 4.15
60.30 165.1 25.40 91.90 19.10 127.0
2 ½ 2.875 7.500 1.120 4.120 8 0.880 5.880 6.13
73.00 190.5 28.40 104.6 22.40 149.4
3 3.500 8.250 1.250 5.000 8 0.880 6.620 8.44
88.90 209.5 31.75 127.0 22.40 168.1
3 ½ 4.000 9.000 1.380 5.500 8 1.000 7.250 11.0
101.6 228.6 35.10 139.7 25.40 184.2
4 4.500 10.75 1.500 6.190 8 1.000 8.500 17.3
114.3 273.1 38.10 157.2 25.40 215.9
5 5.563 13.00 1.750 7.310 8 1.120 10.50 29.4
141.3 330.2 44.50 185.7 28.40 266.7
6 6.625 14.00 1.880 8.500 12 1.120 11.50 36.1
168.3 355.6 47.80 215.9 28.40 292.1
8 8.625 16.50 2.190 10.62 12 1.250 13.75 58.9
219.1 419.1 55.60 269.7 31.75 349.3
10 10.75 20.00 2.500 12.75 16 1.380 17.00 97.5
273.0 508.0 63.50 323.8 35.10 431.8
12 12.75 22.00 2.620 15.00 20 1.380 19.25 124
323.8 558.8 66.55 381.0 35.10 489.0
14 14.00 23.75 2.750 16.25 20 1.500 20.75 151
355.6 603.3 69.85 412.7 38.10 527.1
16 16.00 27.00 3.000 18.50 20 1.620 23.75 214
406.4 685.8 76.20 469.9 41.10 603.3
18 18.00 29.25 3.250 21.00 20 1.750 25.75 272
457.2 743.0 82.60 533.4 44.50 654.1
20 20.00 32.00 3.500 23.00 24 1.750 28.50 349
508.0 812.8 88.90 584.2 44.50 723.9
24 24.00 37.00 4.000 27.25 24 2.000 33.00 533
609.6 939.8 101.6 692.1 50.80 838.2

Notes
  • Weights are based on manufacturer's data and are approximate.






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