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Heatainer ®
removable insulation
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Line Flange Blanket Size Calculation Tool


Line Flange Blanket Size Calculation Tool
Flange Class:
Overlap:
 Inches
Nominal Pipe Size Flange Diameter Flange Thickness Stud Bolt Length Cover Length
0.50 3.50 0.44 2.50 7.88
0.75 3.88 0.50 2.50 8.00
1.00 4.25 0.56 3.25 9.62
1.50 5.00 0.69 3.50 10.38
2.00 6.00 0.75 3.75 11.00
2.50 7.00 0.88 4.00 11.76
3.00 7.50 0.94 4.25 12.38
3.50 8.50 0.94 4.25 12.38
4.00 9.00 0.94 4.25 12.38
5.00 10.00 0.94 4.50 12.88
6.00 11.00 1.00 4.50 13.00
8.00 13.50 1.13 4.75 13.76
10.00 16.00 1.19 5.25 14.88
12.00 19.00 1.25 5.25 15.00
14.00 21.00 1.38 5.75 16.26
16.00 23.50 1.44 6.00 16.88
18.00 25.00 1.56 6.50 18.12
20.00 27.50 1.69 6.75 18.88
24.00 32.00 1.88 7.50 20.76
26.00 34.25 2.69 8.64 24.66
28.00 36.50 2.81 8.88 25.38
30.00 38.75 2.94 10.14 28.16
32.00 41.75 3.18 11.23 30.82
34.00 43.75 3.25 11.37 31.24
36.00 46.00 3.56 11.99 33.10
38.00 46.75 3.44 11.75 32.38
40.00 50.75 3.56 11.99 33.10
42.00 53.00 3.81 12.49 34.60
44.00 55.25 4.00 12.87 35.74
46.00 57.25 4.06 12.99 36.10
48.00 59.50 4.25 13.37 37.24
50.00 61.75 4.38 14.15 39.06
52.00 64.00 4.56 14.51 40.14
54.00 66.25 4.75 14.89 41.28
56.00 68.75 4.88 15.15 42.06
58.00 71.00 5.06 15.51 43.14
60.00 73.00 5.19 15.77 43.92

NOTE: Cover Length = 2 * ([Flange Thickness] + [Stud Bold Length] + [Overlap] + 1)