Lap joint flanges ASME B16.5 CLASS 1500 ASME B16.5

Nominal
Size
NPS
Outside
Diameter
of
Flange
Thickness
of
Flange
Diameter
Of Hub
At Base (1)
Length
thru
Hub
Diameter
Of
Bore
Fillet
Radius
Number of
Bolt Holes
Diameter
of
Bolt
Holes
Diameter
of
Bolts
Diameter
of
Bolt
Circle
Approx.
Weight

Pounds
Kg

O C X Y B r
½ in. 4.75 0.88 1.5 1.25 0.9 0.12 4 0.88 ¾ 3.25 4
mm 120.7 22.4 38.1 31.8 22.9 3 22.4 19.1 82.6 2
¾ in. 5.12 1 1.75 1.38 1.11 0.12 4 0.88 ¾ 3.5 5
mm 130 25.4 44.5 35.1 28.2 3 22.4 19.1 88.9 2
1 in. 5.88 1.12 2.06 1.62 1.38 0.12 4 1  7/8 4 8
mm 149.4 28.4 52.3 41.1 35.1 3 25.4 22.2 101.6 4
1 ¼  in. 6.25 1.12 2.5 1.62 1.72 0.19 4 1  7/8 4.38 9
mm 158.8 28.4 63.5 41.1 43.7 4.8 25.4 22.2 111.3 4
1 ½  in. 7 1.25 2.75 1.75 1.97 0.25 4 1.12 1 4.88 12
mm 177.8 31.8 69.9 44.5 50 6.4 28.4 25.4 124 5
2 in. 8.5 1.5 4.12 2.25 2.46 0.31 8 1  7/8 6.5 25
mm 215.9 38.1 104.6 57.2 62.5 7.9 25.4 22.2 165.1 11
2 ½  in. 9.62 1.62 4.88 2.5 2.97 0.31 8 1.12 1 7.5 35
mm 244.3 41.1 124 63.5 75.4 7.9 28.4 25.4 190.5 16
3 in. 10.5 1.88 5.25 2.88 3.6 0.38 8 1.25 1 1/8 8 47
mm 266.7 47.8 133.4 73.2 91.4 9.7 31.8 28.6 203.2 21
4 in. 12.25 2.12 6.38 3.56 4.6 0.44 8 1.38 1 ¼ 9.5 75
mm 311.2 53.8 162.1 90.4 116.8 11.2 35.1 31.8 241.3 34
5 in. 14.75 2.88 7.75 4.12 5.69 0.44 8 1.62 1 ½ 11.5 140
mm 374.7 73.2 196.9 104.6 144.5 11.2 41.1 38.1 292.1 64
6 in. 15.5 3.25 9 4.69 6.75 0.5 12 1.5 1 3/8 12.5 170
mm 393.7 82.6 228.6 119.1 171.5 12.7 38.1 34.9 317.5 77
8 in. 19 3.62 11.5 5.62 8.75 0.5 12 1.75 1 5/8 15.5 285
mm 482.6 91.9 292.1 142.7 222.3 12.7 44.5 41.3 393.7 129
10 in. 23 4.25 14.5 7 10.92 0.5 12 2 17/8 19 485
mm 584.2 108 368.3 177.8 277.4 12.7 50.8 47.6 482.6 220
12 in. 26.5 4.88 17.75 8.62 12.92 0.5 16 2.12 2 22.5 630
mm 673.1 124 450.9 218.9 328.2 12.7 53.8 50.8 571.5 286
14 in. 29.5 5.25 19.5 9.5 14.18 0.5 16 2.38 2 ¼ 25 890
mm 749.3 133.4 495.3 241.3 360.2 12.7 60.5 57.2 635 404
16 in. 32.5 5.75 21.75 10.25 16.19 0.5 16 2.62 2 ½ 27.75 1050
mm 825.5 146.1 552.5 260.4 411.2 12.7 66.5 63.5 704.9 476
18 in. 36 6.38 23.5 10.88 18.2 0.5 16 2.88 2 ¾ 30.5 1475
mm 914.4 162.1 596.9 276.4 462.3 12.7 73.2 69.9 774.7 669
20 in. 38.75 7 25.25 11.5 20.25 0.5 16 3.12 3 32.75 1775
mm 984.3 177.8 641.4 292.1 514.4 12.7 79.2 76.2 831.9 805
24 in. 46 8 30 13 24.25 0.5 16 3.62 3 ½ 39 2825
mm 1168.4 203.2 762 330.2 616 12.7 91.9 88.9 990.6 1281