Boltex Reference Manual

indstandard_slipon_blind

Industry Standard - Slip-On & Blind Flanges

Class 125

Nominal Size NPS Outside Diameter of Flange Thickness of Flange Length thru Hub Diameter of Hub at Base Diameter of Raised Face Diameter of Bore Diameter of Bolt Circle Number of Bolt Holes Diameter of Bolt Holes
SOF BLIND
O C C Y X R B
26 in. 34.25 2.00 2.00 3.38 28.50 29.50 26.25 31.75 24 1.38
mm. 870.0 50.8 50.8 85.9 723.9 749.3 666.8 806.5 35.1
28 in. 36.50 2.06 2.12 3.44 30.75 31.50 28.25 34.00 28 1.38
mm. 927.1 52.3 53.8 87.4 781.1 800.1 717.6 863.6 35.1
30 in. 38.75 2.13 2.12 3.50 32.75 33.75 30.25 36.00 28 1.38
mm. 984.3 54.1 53.8 88.9 831.9 857.3 768.4 914.4 35.1
32 in. 41.75 2.25 2.25 3.63 35.00 36.00 32.25 38.50 28 1.63
mm. 1060.5 57.2 57.2 92.2 889.0 914.4 819.2 977.9 41.4
34 in. 43.75 2.31 2.31 3.68 37.00 38.00 34.25 40.50 32 1.63
mm. 1111.3 58.7 58.7 93.5 939.8 965.2 870.0 1028.7 41.4
36 in. 46.00 2.38 2.38 3.75 39.25 40.25 36.25 42.75 32 1.63
mm. 1168.4 60.5 60.5 95.3 997.0 1022.4 920.8 1085.9 41.4
38 in. 48.75 2.38 2.38 3.75 41.75 42.25 38.25 45.25 32 1.63
mm. 1238.3 60.5 60.5 95.3 1060.5 1073.2 971.6 1149.4 41.4
40 in. 50.75 2.50 2.50 3.88 43.75 44.25 40.25 47.25 36 1.63
mm. 1289.1 63.5 63.5 98.6 1111.3 1124.0 1022.4 1200.2 41.4
42 in. 53.00 2.63 2.62 4.00 46.00 47.00 42.25 49.50 36 1.63
mm. 1346.2 66.8 66.5 101.6 1168.4 1193.8 1073.2 1257.3 41.4
44 in. 55.25 2.63 2.62 4.00 48.00 49.00 44.25 51.75 40 1.63
mm. 1403.4 66.8 66.5 101.6 1219.2 1244.6 1124.0 1314.5 41.4
46 in. 57.25 2.68 2.69 4.06 50.00 51.00 46.25 53.75 40 1.63
mm. 1454.2 68.1 68.3 103.1 1270.0 1295.4 1174.8 1365.3 41.4
48 in. 59.50 2.75 2.75 4.13 52.25 53.50 48.25 56.00 44 1.63
mm. 1511.3 69.9 69.9 104.9 1327.2 1358.9 1225.6 1422.4 41.4
50 in. 61.75 2.75 2.75 4.13 54.25 55.50 50.25 58.25 44 1.88
mm. 1568.5 69.9 69.9 104.9 1378.0 1409.7 1276.4 1479.6 47.8
52 in. 64.00 2.88 2.88 4.25 56.50 57.50 52.25 60.50 44 1.88
mm. 1625.6 73.2 73.2 108.0 1435.1 1460.5 1327.2 1536.7 47.8
54 in. 66.25 3.00 3.00 4.38 58.75 59.75 54.25 62.75 44 1.88
mm. 1682.8 76.2 76.2 111.3 1492.3 1517.7 1378.0 1593.9 47.8
60 in. 73.00 3.13 3.12 4.50 65.25 66.00 60.25 69.25 52 1.88
mm. 1854.2 79.5 79.2 114.3 1657.4 1676.4 1530.4 1759.0 47.8
66 in. 80.00 3.38 3.38 4.88 71.50 73.00 66.25 76.00 52 1.88
mm. 2032.0 85.9 85.9 124.0 1816.1 1854.2 1682.8 1930.4 47.8
72 in. 86.50 3.50 3.50 5.00 78.50 79.50 72.25 82.50 60 1.88
mm. 2197.1 88.9 88.9 127.0 1993.9 2019.3 1835.2 2095.5 47.8
84 in. 99.75 3.88 4.06 5.38 90.50 92.50 84.25 95.50 64 2.13
mm. 2533.7 98.6 103.1 136.7 2298.7 2349.5 2140.0 2525.7 54.1
96 in. 113.25 4.25 4.56 5.75 102.75 105.50 96.25 108.50 68 2.38
mm. 2876.6 108.0 115.8 146.1 2609.9 2679.7 2444.8 2755.9 60.5