Size & Dimensions of Forged Flanges

150 lbs

150 lbs Common sizes to 150 lbs flanges WELDING-NECK 150 lbs SLIP-ON 150 lbs UVP-JOINT 150 lbs
Nominal Bore Diam. D E Thick Diam. F Diam. B DRILLING Diam d1 (1) H Height (1) H Height Diam. A (1) H Height Diam. A A Radius
Nbre Holes Diam DiamC
1/2 89.0 11.0 34.9 30.0 04 16 60.03 21.03 47.06 16.0 22.04 16.00 22.09 3.01
3/4 98.5 12.7 42.9 38.0 04 16 69.09 26.07 52.04 16.0 27.07 16.00 28.02 3.01
1 108.5 14.3 50.8 49.0 04 16 79.04 33.04 55.06 17.5 34.05 17.05 35.01 3.01
1 1/4 117.5 15.9 63.5 59.0 04 16 88.09 42.02 57.02 20.5 43.02 20.05 43.07 4.07
1 1/2 127.0 17.5 73.0 65.0 04 16 98.04 48.03 61.09 22.0 49.05 22.00 50.00 6.03
2 152.5 19.0 92.1 78.0 04 19 120.06 60.03 63.05 25.5 62.00 25.05 62.05 7.09
2 1/2 178.0 22.2 104.8 90.5 04 19 139.07 73.00 70.00 28.5 74.07 28.05 75.05 7.05
3 190.5 23.8 127.0 108.0 04 19 152.04 88.09 70.00 30.0 90.07 30.00 91.05 9.05
3 1/2 216.0 23.8 139.7 122.0 08 19 177.08 101.06 71.05 32.0 103.04 32.00 104.02 9.05
4 228.5 23.8 157.2 135.0 08 19 19.05 114.03 76.02 33.5 116.01 33.05 116.09 11.01
5 254.0 23.8 185.7 163.5 08 23 215.09 141.03 76.02 33.5 116.01 33.05 116.09 11.01
6 279.5 25.4 215.9 192.0 08 23 241.03 168.03 88.09 39.5 170.07 39.05 171.05 12.07
8 343.0 28.6 269.9 246.0 08 23 298.05 219.01 102.00 44.5 221.05 44.05 222.03 12.07
10 406.5 30.2 323.9 305.0 12 25 362.00 273.00 102.00 49.0 276.04 49.00 277.04 12.07
12 482.2 31.8 381.0 365.0 12 25 431.08 323.09 114.03 55.5 327.02 55.05 328.02 12.07
14 533.5 35.0 412.8 400.0 12 29 476.03 355.06 127.00 57.0 359.02 79.04 360.02 12.07
16 567.0 36.5 469.9 457.0 16 29 539.08 406.04 127.00 63.5 410.05 87.03 411.02 J2.07
18 635.0 39.7 533.4 505.0 16 32 577.09 457.02 139.07 68.5 461.05 96.08 462.03 12.07
20 698.5 42.9 584.2 559.0 20 32 635.00 508.00 144.05 73.0 513.01 103.02 514.04 12.07
24 813.0 47.6 692.2 663.5 20 35 749.03 609.06 152.04 82.5 616.00 111.01 616.00 12.07

300 lbs

300 lbs Common sizes to 300 lbs flanges WELDING-NECK 300 lbs SLIP-ON 300 lbs LAP-JOINT 300 lbs
Nominal Bore Diam. D E Thick Diam. F Diam. B DRILLING Diam d1 (1) H Height (1) H Height Diam. A (1) H Height Diam. A A Radius
Nbre Holes Diam Diam C
1/2 95.0 14.5 34.9 38 04 16.0 67.0 21.3 52.5 22.0 22.2 22.4  22.9 3.1
3/4 117.5 16.0 42.9 48 04 19.0 83.0 26.7 57.0 25.5 27.7 25.4 28.2 3.1
1 124.0 14.5 50.8 54 04 19.0 89.0 33.4 62.0 27.0 34.5 27.0 35.1 3.1
1 1/4 133.5 19.0 63.5 63 04 16.0 98.5 42.2 65.0 27.0 43.5 27.0 43.7 4.7
1 1/2 156.0 20.5 73.0 70 04 22.2 114.5 48.3 68.5 30.0 49.5 30.2 50.0 6.3
2 165.0 22.0 92.1 84 08 19.0 127.0 60.3 70.0 33.5 62.0 33.3 62.5 7.9
2 1/2 190.5 25.5 104.8 100 08 22.2 149.0 73.0 76.0 38.0 74.7 38.1 75.4 7.9
3 209.5 28.5 127.0 117 08 22.2 168.5 88.9 79.5 43.0 90.7 42.9 91.5 9.5
3 1/2 229.0 30.5 139.7 133 08 22.2 184.0 101.6 81.0 44.5 103.4 44.5 104.2 9.5
4 254.0 31.5 157.2 146 08 22.2 200.0 114.3 85.5 47.5 116.1 47.6 116.9 11.1
5 279.0 35.0 185.7 178 08 22.2 235.0 141.3 98.5 50.5 143.5 50.8 144.5 11.1
6 317.5 36.5 215.9 206 12 22.2 270.0 168.3 98.5 52.5 170.7 52.4 171.5 12.7
8 381.0 41.5 269.9 260 12 25.4 330.0 219.1 111.0 62.0 221.5 61.9 222.3 12.7
10 444.5 47.5 323.9 321 16 29.0 387.5 273.0 117.5 66.5 276.4 95.3 277.4 12.7
12 520.5 51.0 381.9 375 16 32.0 451.0 323.9 130.0 73.0 327.2 101.6 328.2 12.7
14 584.0 54.0 412.8 425 20 32.0 514.5 355.6 143.0 79.0 359.2 111.1 360.2 12.7
16 647.5 57.0 469.9 483 20 35.0 571.5 406.4 146.0 82.5 410.5 120.7 411.2 12.7

600 lbs

600 lbs Common sizes to 600 lbs flanges WELDING-NECK 600 lbs SLIP-ON 600 lbs UVP-JOINT 600 lbs
Nominal Bore Diam. D E Thick Diam. F Diam. B DRILLING Diam d1 (1) H Height (1) H Height Diam. A (1) H Height Diam. A A Radius
Nbre Holes Diam DiamC
1/2 95.0 14.3 34.9 38 04 16 67.0 21.3 52.4 22.2 22.4 22.2 22.9 3.1
3/4 117.5 15.9 42.9 48 04 19 83.0 26.7 57.2 25.4 27.7 25.4 28.2 3.1
1 124.0 17.5 50.8 54 04 19 89.0 33.4 61.9 27.0 34.5 27.0 35.1 3.1
1 1/4 133.5 20.6 63.5 63 04 19 98.5 42.2 66.7 28.6 43.2 28.6 43.7 4.7
1 1/2 190.5 28.6 104.8 100 08 23 114.5 48.3 69.9 31.8 49.5 31.8 50.0 6.3
2 165.0 25.4 92.1 084 08 19 127.0 60.3 73.0 36.5 62.0 36.5 62.5 7.9
2 1/2 190.5 28.5 104.8 100 08 23 149.0 73.0 79.4 41.3 74.7 41.3 75.4 7.9
3 209.5 31.8 127.0 117 08 23 168.5 88.9 82.5 46.0 90.7 46.0 91.0 9.5
3 1/2 229.0 34.9 139.7 133 08 25 184.0 101.6 85.7 49.0 103.4 46.0 91.5 9.5
4 273.0 38.1 157.2 152 08 25 216.0 114.3 101.6 54.0 116.1 54.0 116.9 11.1
5 330.0 44.5 185.7 189 08 29 267.0 141.3 144.3 60.3 116.1 60.3 144.5 11.1
6 355.5 47.6 215.5 222 12 29 292.0 168.3 117.5 66.7 170.7 66.7 171.5 12.7
8 419.0 55.6 269.9 273 12 32 349.0 219.1 133.4 76.2 221.5 76.2 222.3 12.7
10 508.0 63.5 323.9 343 16 35 432.0 273.0 152.4 85.7 276.5 111.1 277.4 12.7
12 559.0 66.7 381.0 400 20 35 489.0 323.9 155.6 92.1 327.5 117.5 323.8 12.7
14 603.0 69.5 412.8 432 20 38 527.0 355.6 165.1 93.7 359.2 127.0 360.2 12.7
16 686.0 76.2 469.9 495 20 42 603.5 406.4 177.8 106.4 410.5 139.7 411.2 12.7
18 743.0 82.3 533.4 546 20 45 654.0 457.2 184.2 177.5 461.5 152.4 462.3 12.7
20 813.0 88.9 584.2 6I0 24 45 724.0 508.0 190.5 127.5 513.1 165.1 514.3 12.7
24 940.0 101.6 692.2 718 24 51 838.0 609.6 203.2 139.7 616.0 184.2 616.0 12.7

1500 lbs

1500 lbs Common sizes to 300 lbs flanges WELDING-NECK 1500 lbs SLIP-ON 1500 lbs LAP-JOINT 1500 lbs
Nominal Bore Diam. D E Thick Diam. F Diam. B DRILLING Diam d1 (1) H Height (1) H Height Diam. A (1) H Height Diam. A A Radius
Nbre Holes Diam Diam C
1/2 121.0 22.2 34.9 38.0 4 22.2 82.5 21.3 60.3 31.8 22.4 31.8 22.9 3.1
3/4 130.0 25.4 42.9 44.5 4 22.2 89.0 26.7 69.9 34.9 27.7 34.9 28.2 3.1
1 149.0 28.6 50.8 25.5 4 25.4 101.5 33.4 73.0 41.0 34.5 41.3 35.1 3.1
1 1/4 159.0 28.6 63.5 63.5 4 25.4 111.0 42.2 73.0 41.0 43.2 41,3 43.7 4.7
1 1/2 178.0 31.8 73.0 70.0 4 29.0 124.0 48.3 82.5 44.5 49.5 44.5 50.0 6.3
2 216.0 38.1 92.1 105.0 8 25.4 165.0 60.3 101.6 57.2 62.0 57.2 62.5 7.9
2 1/2 244.5 41.3 104.8 124.0 8 29.0 190.5 73.0 104.8 63.5 74.7 63.5 75.4 7.9
3 266.5 47.6 127.0 133.5 8 32.0 203.0 88.9 117.5 73.0 90.7 73.0 91.5 9.5
4 311.0 54.0 157.2 162.0 8 35.0 241.5 114.3 123.8 90.5 116.1 90.5 116.9 11.1
5 374.5 73.0 185.7 197.0 8 42.0 292.0 141.3 155.6 104.8 143.8 104.8 144.5 11.1
6 395.0 82.5 215.9 229.0 12 38.0 317.5 168.3 171.5 119.1 170.7 119.1 171.5 12.7

2500 lbs

2500 lbs Common sizes to 300 lbs flanges WELDING-NECK 2500 lbs SLIP-ON 2500 lbs LAP-JOINT 2500 lbs
Nominal Bore Diam. D E Thick Diam. F Diam. B DRILLING Diam d1 (1) H Height (1) H Height Diam. A (1) H Height Diam. A A Radius
Nbre Holes Diam Diam C
1/2 133.5 30.2 34.9 43.0 4 22.2 89.0 21.3 73.0 39.7 22.4 39.7 22.9 3.1
3/4 140.0 31.8 42.9 51.0 4 22.2 95.0 26.7 79.4 42.9 27.7 42.9 28.2 .3.1
1 159.0 34.9 50.8 57.0 4 25.4 108.0 33.4 88.9 47.6 34.5 47.6 35.1 3.1
1 1/4 184.0 38.1 63.5 73.0 4 29.0 130.0 42.2 95.3 52.3 43.2 52.4 43.7 4.7
1 1/2 203.0 44.5 73.0 79.5 4 32.0 146.0 48.3 111.1 60.3 49.5 60.3 50.0 6.3
2 235.0 50.8 92.1 95.0 8 29.0 171.5 60 3 127.0 69.9 62.0 69.9 62.5 7.9

Others

150 lbs  300 lbs
Nominal bore Socket-Welding Screwd Socket-Welding Screwd Nominal bore in inches
(2) H Height Diam. A1 P Depth (R) H Height (1) Kg Weight (2) H Diam A1 Depth P (2) H Height Diam A T Height Kg Weight
1/2 00.16 22.4 09.05 00.16 0.500 22 22.4 9.5 22 23.6 15.9 0.700 1/2
3/4 00.16 27.7 11.01 16.00 0.700 25.5 27.7 11.1 25.5 29 15.9 1.130 3/4
1 17.05 34.5 12.07 12.05 0.900 27 34.5 12.7 27 35.8 17.8 1.360 1
1 1/4 20.05 43.2 14.03 20.05 1.200 27 43.2 14.3 27 44.5 20.6 2.050 1 1/4
1 1/2 00.22 49.5 15.30 22.00 1.400 30 49.5 15.9 30 50.6 22.2 2.950 1 1/2
2 25.05 62.0 17.05 25.05 2.300 33.5 62 17.5 33.5 63.5 28.6 3.200 2
2 1/4 28.05 74.7 19.01 28.05 3.600 38 74.7 19.1 38 16.2 31.8 4.530 2 1/2
3 00.30 90.7 20.07 00.30 4.500 43 90.7 20.7 43 92.2 31.8 6.350 3
3 1/2 00.32 103.4 22.02 00.32 5.400 44.5 103.4 22.2 44.5 104.9 36.5 7.300 3 1/4
4 33.05 116.1 23.08 33.05 5.900 47.5 117.6 38.5 10.870 4
600 lbs 1500 lbs
Nominal bore Socket-Welding Screwd Socket-Welding Screwd Nominal bore in inches
H (2) A1 P H (2) A T H (2) A1 P H (2) A T
1/2 22.2 22.4 9.5 22.2 23.6 15.9 31.8 22.4 9.5 31.8 23.6 22.2 1/2
3/4 28.4 27.7 11.1 25.4 29 15.9 34.9 27.7 11.1 34.9 29 25.4 3/4
1 27.0 34.5 12.7 27.0 35.8 17.5 41.3 34.5 12.7 41.3 35.8 28.6 1
1 1/4 28.6 43.2 14.3 28.6 44.5 20.6 41.3 43.2 14.3 41.3 44.5 30.2 1 1/4
1 1/2 31.8 49.5 15.9 31.8 50.6 22.2 44.5 49.5 15.9 44.5 50.6 31.8 I 1 1/2
2 36.5 62.0 17.5 36.5 63.5 28.6 57.2 62.0 17.5 57.2 63.5 38.1 2
2 1/2 41.3 74.7 19.1 41.3 76.2 31.8 63.5 74.7 19.1 63.5 76.2 47.6 2 1/2
3 46.0 90.7 20.7 46.0 92.2 34.7 73.0 92.2 50.8 3
3 1/2 49.2 104.9 39.7 90.5 117.6 57.2 31/2
4 54.0 117.6 41.3 104.8 114.5 63.5 4

2) 150 lbs 300 lbs flanges, raised face of 1/2" included in H & E
600 up to 2500 flanges, R. F. of 1/4" is not included in H & E