All dimensions are in "mm" unless noted otherwise.
Dimensions of Class 150 RF Blind Flanges Series B as per ASME B16.47.
Nominal Pipe Size |
OD of Flange (O) |
Thickness of Flange (C) |
Dia of Raised Face (R) |
Dia of Bolt Circle (B) |
No of Bolt Holes |
Dia of Bolt Holes |
Dia of Bolt |
Approx Weight (kg) |
---|---|---|---|---|---|---|---|---|
26 | 785.9 | 44.5 | 771.2 | 744.5 | 36 | 22.4 | 19.1 | 164 |
28 | 836.7 | 47.8 | 762 | 795.3 | 40 | 22.4 | 19.1 | 200 |
30 | 887.5 | 50.8 | 812.8 | 846.1 | 44 | 22.4 | 19.1 | 240 |
32 | 941.3 | 53.8 | 863.6 | 900.2 | 48 | 22.4 | 19.1 | 287 |
34 | 1004.8 | 57.2 | 920.8 | 957.3 | 40 | 25.4 | 22.2 | 347 |
36 | 1057.1 | 58.7 | 971.6 | 1009.7 | 44 | 25.4 | 22.2 | 395 |
38 | 1124 | 63.5 | 1022.4 | 1069.8 | 40 | 28.4 | 25.7 | 483 |
40 | 1174.8 | 66.5 | 1079.5 | 1120.6 | 44 | 28.4 | 25.4 | 553 |
42 | 1225.6 | 68.3 | 1130.3 | 1171.4 | 48 | 28.4 | 25.4 | 618 |
44 | 1276.4 | 71.4 | 1181.1 | 1222.2 | 52 | 28.4 | 25.4 | 701 |
46 | 1341.4 | 74.7 | 1234.9 | 1284.2 | 40 | 31.8 | 28.6 | 813 |
48 | 1392.2 | 77.7 | 1289.1 | 1335 | 44 | 31.8 | 28.6 | 911 |
50 | 1443 | 80.8 | 1339.9 | 1385.8 | 48 | 31.8 | 28.6 | 1017 |
52 | 1493.8 | 84.1 | 1390.7 | 1436.6 | 52 | 31.8 | 28.6 | 1134 |
54 | 1549.4 | 87.4 | 1441.5 | 1492.3 | 56 | 31.8 | 28.6 | 1268 |
56 | 1600.2 | 90.4 | 1492.3 | 1543.1 | 60 | 31.8 | 28.6 | 1400 |
58 | 1674.9 | 93.5 | 1543.1 | 1611.4 | 48 | 35.1 | 31.8 | 1589 |
60 | 1725.7 | 96.8 | 1600.2 | 1662.2 | 52 | 35.1 | 31.8 | 1746 |