THREADED FLANGES ASME B16.5 Class 600

Nominal
Size
NPS
Outside
Diameter
of
Flange
Thickness
of
Flange
Diameter Of Raised
Face
Diameter
Of Hub
At Base (1)
Length
thru
Hub
Minimum Threaded Lenght Minimum Counter – Bore Number of
Bolt Holes
Diameter
of
Bolt
Holes
Diameter
of
Bolts
Diameter
of
Bolt
Circle
Approx.
Weight

Pounds
Kg

O C R X Y T Q
½ in. 3.75 0.56 1.38 1.5 0.88 0.62 0.93 4 0.62 ½ 2.62 2
mm 95.3 14.2 35.1 38.1 22.4 15.7 23.6 15.7 12.7 66.5 1
¾ in. 4.62 0.62 1.69 1.88 1 0.62 1.14 4 0.75  5/8 3.25 3
mm 117.3 15.7 42.9 47.8 25.4 15.7 29 19.1 15.9 82.6 1
1 in. 4.88 0.69 2 2.12 1.06 0.69 1.41 4 0.75  5/8 3.5 4
mm 124 17.5 50.8 53.8 26.9 17.5 35.8 19.1 15.9 88.9 2
1 ¼  in. 5.25 0.81 2.5 2.5 1.12 0.81 1.75 4 0.75  5/8 3.88 5
mm 133.4 20.6 63.5 63.5 28.4 20.6 44.5 19.1 15.9 98.6 2
1 ½  in. 6.12 0.88 2.88 2.75 1.25 0.88 1.99 4 0.88 ¾ 4.5 7
mm 155.4 22.4 73.2 69.9 31.8 22.4 50.5 22.4 19.1 114.3 3
2 in. 6.5 1 3.62 3.31 1.44 1.12 2.5 8 0.75  5/8 5 9
mm 165.1 25.4 91.9 84.1 36.6 28.4 63.5 19.1 15.9 127 4
2 ½  in. 7.5 1.12 4.12 3.94 1.62 1.25 3 8 0.88 ¾ 5.88 13
mm 190.5 28.4 104.6 100.1 41.1 31.8 76.2 22.4 19.1 149.4 6
3 in. 8.25 1.25 5 4.62 1.81 1.38 3.63 8 0.88 ¾ 6.62 16
209.6 31.8 127 117.3 46 35.1 92.2 22.4 19.1 168.1 7
3 ½ in. 9 1.38 5.5 5.25 1.94 1.56 4.13 8 1  7/8 7.25 21
mm 228.6 35.1 139.7 133.4 49.3 39.6 104.9 25.4 22.2 184.2 10
4 in. 10.75 1.5 6.19 6 2.12 1.62 4.63 8 1  7/8 8.5 37
mm 273.1 38.1 157.2 152.4 53.8 41.1 117.6 25.4 22.2 215.9 17
5 in. 13 1.75 7.31 7.44 2.38 1.88 5.69 8 1.12 1 10.5 63
mm 330.2 44.5 185.7 189 60.5 47.8 144.5 28.4 25.4 266.7 29
6 in. 14 1.88 8.5 8.75 2.62 2 6.75 12 1.12 1 11.5 80
mm 355.6 47.8 215.9 222.3 66.5 50.8 171.5 28.4 25.4 292.1 36
8 in. 16.5 2.19 10.62 10.75 3 2.25 8.75 12 1.25 1 1/8 13.75 115
mm 419.1 55.6 269.7 273.1 76.2 57.2 222.3 31.8 28.6 349.3 52
10 in. 20 2.5 12.75 13.5 3.38 2.56 10.88 16 1.38 1 ¼ 17 170
mm 508 63.5 323.9 342.9 85.9 65 276.4 35.1 31.8 431.8 77
12 in. 22 2.62 15 15.75 3.62 2.75 12.94 20 1.38 1 ¼ 19.25 200
mm 558.8 66.5 381 400.1 91.9 69.9 328.7 35.1 31.8 489 91
14 in. 23.75 2.75 16.25 17 3.69 2.88 14.19 20 1.5 1 3/8 20.75 230
mm 603.3 69.9 412.8 431.8 93.7 2.9 360.4 38.1 34.9 527.1 104
16 in. 27 3 18.5 19.5 4.19 3.06 16.19 20 1.62 1 ½ 23.75 330
mm 685.8 76.2 469.9 495.3 106.4 77.7 411.2 41.1 38.1 603.3 150
18 in. 29.25 3.25 21 21.5 4.62 3.12 18.19 20 1.75 1 5/8 25.75 400
mm 743 82.6 533.4 546.1 117.3 79.2 462 44.5 41.3 654.1 181
20 in. 32 3.5 23 24 5 3.25 20.19 24 1.75 1 5/8 28.5 510
mm 812.8 88.9 584.2 609.6 127 82.6 512.8 44.5 41.3 723.9 231
24 in. 37 4 27.25 28.25 5.5 3.62 24.19 24 2 1 7/8 33 730
mm 939.8 101.6 692.2 717.6 139.7 91.9 614.4 50.8 47.6 838.2 331