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material-composition
NOMINAL PIPE SIZE OUTSIDE DIA.(MM) THICKNESS MIN (MM) NUMBER OF BOLT HOLES DIA. OF HOLES(MM) DIA. OF BOLT CIRCLE (MM) APPROX WEIGHT(KG)
  D t   h C  
1/2" 120.6 22.3 4 22.3 82.5 1.8
3/4" 130.1 25.4 4 22.3 88.9 2.5
1" 149.3 28.4 4 25.4 101.6 3.6
1.1/4" 158.7 28.4 4 25.4 111.1 4.2
1.1/2" 177.8 31.7 4 28.4 123.8 5.8
2" 215.9 38.1 8 25.4 165.1 11
2.1/2" 244.3 41.1 8 28.4 190.5 14
3" 266.7 47.7 8 31.7 203.2 20
4" 311.1 53.8 8 35.0 241.3 30
5" 374.6 73.1 8 41.1 292.1 59
6" 393.7 82.5 12 38.1 317.5 72
8" 482.6 91.9 12 44.4 393.7 122
10" 584.2 107.9 12 50.8 482.6 210
12" 673.1 123.9 16 53.8 571.5 316
14′ 749.3 133.0 16 60.4 635.0 420
16" 825.5 146.0 16 66.5 704.8 560
18" 914.4 162.0 16 73.1 774.7 760
20" 984.2 177.8 16 79.2 831.8 965
24" 1168.4 203.2 16 91.9 990.6 1558