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SOUTH ASIA METAL & ALLOYS
Shop No.-9, Ground Floor,
Sonarika Building, 25/C,
Chandanwadi, C.P. Tank Road,
Mumbai - 400 004 , INDIA
Tel: +91-22-6659 5840
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Dimensions for Class 300 Flanges

Nom. Pipe Size (inches) O Q* R X No. of Holes Dia of Bolt Holes Bolt Circle Dia YY* H J Y* B R YV BB Z C T
1/2 95.3 14.2 35 38.1 4 15.7 66.5 52.3 21.3 15.7 22.4 22.4 3.0 22.4 22.9 9.7 23.6 15.7
3/4 117.3 15.7 43 47.8 4 19.1 82.6 57.2 26.7 20.8 25.4 27.7 3.0 25.4 28.2 11.2 29.0 15.7
1 124.0 17.5 51 53.8 4 19.1 88.9 62.0 33.5 26.7 26.9 34.5 3.0 26.9 35.1 12.7 35.8 17.5
1 1/4 133.4 19.1 64 63.5 4 19.1 98.6 65.0 42.2 35.1 26.9 43.2 4.8 26.9 43.7 14.2 44.5 20.6
1 1/2 155.4 20.6 73 69.9 4 22.4 114.3 68.3 48.3 40.9 30.2 49.5 6.4 30.2 50.0 15.7 50.5 22.4
2 165.1 22.4 92 84.1 8 19.1 127.0 69.9 60.5 52.6 33.3 62.0 7.9 33.3 62.5 17.5 63.5 28.4
21/2 190.5 25.4 105 100.1 8 22.4 149.4 76.2 73.2 62.7 38.1 74.7 7.9 38.1 75.4 19.1 76.2 31.8
3 209.6 28.4 127 117.3 8 22.4 168.1 79.2 88.9 78.0 42.9 90.7 9.7 42.9 91.4 20.6 92.2 31.8
31/2 228.6 30.2 140 133.4 8 22.4 184.2 81.0 101.6 90.2 44.5 103.4 9.7 44.5 104.1   104.9 36.6
4 254.0 31.8 157 146.1 8 22.4 200.2 85.9 114.3 102.4 47.8 116.1 11.2 47.8 116.8   117.6 36.6
5 279.4 35.1 186 177.8 8 22.4 235.0 98.6 141.2 128.3 50.8 143.8 11.2 50.8 144.5   144.5 42.9
6 317.5 36.6 216 206.2 12 22.4 269.7 98.6 168.4 154.2 52.3 170.7 12.7 52.3 171.5   171.5 46.0
8 381.0 41.1 270 260.4 12 25.4 330.2 111.3 219.2 202.7 62.0 221.5 12.7 62.0 222.3   222.3 50.8
10 444.5 47.8 324 320.5 16 28.4 387.4 117.3 273.1 254.5 66.5 276.4 12.7 95.3 277.4   276.4 55.6
12 520.7 50.8 381 374.7 16 31.8 450.9 130.0 323.9 304.8 73.2 327.2 12.7 101.6 328.2   328.7 60.5
14 584.2 53.8 413 425.5 20 31.8 514.4 142.7 355.6 To Be 76.2 359.2 12.7 111.3 360.2   360.4 63.5
16 647.7 57.2 470 482.6 20 35.1 571.5 146.1 406.4
To Specified by Purchaser
 82.6 410.5 12.7 120.7 411.2   411.2 68.3
18 711.2 60.5 533 533.4 24 35.1 628.7 158.8 457.2 88.9 461.8 12.7 130.0 462.3   462.0 69.9
20 774.7 63.5 584 587.2 24 35.1 685.8 162.1 508.0 95.3 513.1 12.7 139.7 514.4   512.8 73.2
24 914.4 69.9 692 701.5 24 41.1 812.8 168.1 609.6 106.4 616.0 12.7 152.4 616.0   614.4 82.6

 
   
   
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