SOCKET FLANGES ASME B16.5 Class 300

Nominal
Size
NPS
Outside
Diameter
of
Flange
Thickness
of
Flange
Diameter Of Raised
Face (1)
Diameter
Of Hub
At Base (2)
Length
thru
Hub
Diameter
Of
Socket
Depth
Of
Socket
Number of
Bolt Holes
Diameter
of
Bolt
Holes
Diameter
of
Bolts
Diameter
of
Bolt
Circle
Approx.
Weight

Pounds
Kg

O C R X Y B D
½ in. 3.75 0.56 1.38 1.5 0.88 0.88 0.38 4 0.62 ½ 2.62 2
mm 95.3 14.2 35.1 38.1 22.4 22.4 9.7 15.7 12.7 66.5 1
¾ in. 4.62 0.62 1.69 1.88 1 1.09 0.44 4 0.75  5/8 3.25 3
mm 117.3 15.7 42.9 47.8 25.4 27.7 11.2 19.1 15.9 82.6 1
1 in. 4.88 0.69 2 2.12 1.06 1.36 0.5 4 0.75  5/8 3.5 3
mm 124 17.5 50.8 53.8 26.9 34.5 12.7 19.1 15.9 88.9 1
1 ¼  in. 5.25 0.75 2.5 2.5 1.06 1.7 0.56 4 0.75  5/8 3.88 4
mm 133.4 19.1 63.5 63.5 26.9 43.2 14.2 19.1 15.9 98.6 2
1 ½  in. 6.12 0.81 2.88 2.75 1.19 1.95 0.62 4 0.88 ¾ 4.5 6
mm 155.4 20.6 73.2 69.9 30.2 49.5 15.7 22.4 19.1 114.3 3
2 in. 6.5 0.88 3.62 3.31 1.31 2.44 0.69 8 0.75  5/8 5 7
mm 165.1 22.4 91.9 84.1 33.3 62 17.5 19.1 15.9 127 3
2 ½  in. 7.5 1 4.12 3.94 1.5 2.94 0.75 8 0.88 ¾ 5.88 10
mm 190.5 25.4 104.6 100.1 38.1 74.7 19.1 22.4 19.1 149.4 5
3 in. 8.25 1.12 5 4.62 1.69 3.57 0.81 8 0.88 ¾ 6.62 13
mm 209.6 28.4 127 117.3 42.9 90.7 20.6 22.4 19.1 168.1 6
3 ½ in. 9 1.19 5.5 5.25 1.75 4.07 8 0.88 ¾ 7.25 17
mm 228.6 30.2 139.7 133.4 44.5 103.4 22.4 19.1 184.2 8
4 in. 10 1.25 6.19 5.75 1.88 4.57 8 0.88 ¾ 7.88 22
mm 254 31.8 157.2 146.1 47.8 116.1 22.4 19.1 200.2 10
5 in. 11 1.38 7.31 7 2 5.66 8 0.88 ¾ 9.25 28
mm 279.4 35.1 185.7 177.8 50.8 143.8 22.4 19.1 235 13
6 in. 12.5 1.44 8.5 8.12 2.06 6.72 12 0.88 ¾ 10.62 39
mm 317.5 36.6 215.9 206.2 52.3 170.7 22.4 19.1 269.7 18
8 in. 15 1.62 10.62 10.25 2.44 8.72 12 1  7/8 13 58
mm 381 41.1 269.7 260.4 62 221.5 25.4 22.2 330.2 26
10 in. 17.5 1.88 12.75 12.62 2.62 10.88 16 1.12 1 15.25 81
mm 444.5 47.8 323.9 320.5 66.5 276.4 28.4 25.4 387.4 37
12 in. 20.5 2 15 14.75 2.88 12.88 16 1.25 1 1/8 17.75 115
mm 520.7 50.8 381 374.7 73.2 327.2 31.8 28.6 450.9 52
14 in. 23 2.12 16.25 16.75 3 14.14 20 1.25 1 1/8 20.25 165
mm 584.2 53.8 412.8 425.5 76.2 359.2 31.8 28.6 514.4 75
16 in. 25.5 2.25 18.5 19 3.25 16.16 20 1.38 1 ¼ 22.5 190
mm 647.7 57.2 469.9 482.6 82.6 410.5 35.1 31.8 571.5 86
18 in. 28 2.38 21 21 3.5 18.18 24 1.38 1 ¼ 24.75 250
mm 711.2 60.5 533.4 533.4 88.9 461.8 35.1 31.8 628.7 113
20 in. 30.5 2.5 23 23.12 3.75 20.2 24 1.38 1 ¼ 27 315
mm 774.7 63.5 584.2 587.2 95.3 513.1 35.1 31.8 685.8 143
24 in. 36 2.75 27.25 27.62 4.19 24.25 24 1.62 1 ½ 32 475
mm 914.4 69.9 692.2 701.5 106.4 616 41.1 38.1 812.8 215