Nominal Insulation Table (Size vs. Actual)

NOMINAL INSULATION THICKNESS (in.)INSULATION O.D. (in.)APPROX. INSULATION THICKNESS (in.)

Pipe size: 1/2" (O.840 O.D.)
12 7/81
1 1/241 9/16
252 1/16
2 1/26 5/82 7/8
37 5/83 3/8
3 1/28 5/83 7/8
49 5/84 3/8

Pipe size: 3/4" (1.050 O.D.)
12 7/87/8
1 1/241 7/16
251 15/16
2 1/26 5/82 3/4
37 5/83 1/4
3 1/28 5/83 3/4
49 5/84 1/4

Pipe size: 1" (1.315 O.D.)
13 1/21 1/16
1 1/24 1/21 9/16
25 9/162 1/8
2 1/26 5/82 5/8
37 5/83 1/8
3 1/28 5/83 5/8
49 5/84 1/8

Pipe size: 1 1/4" (1.66 O.D.)
13 1/215/16
1 1/251 11/16
25 9/161 15/16
2 1/26 5/82 1/2
37 5/83
3 1/28 5/83 1/2
49 5/84

Pipe size: 1 1/2" (1.90 O.D.)
141 1/16
1 1/251 9/16
26 5/82 3/8
2 1/27 5/82 7/8
38 5/83 3/8
3 1/29 5/83 7/8
410 3/44 7/16

Pipe size: 2" (2 3/8" O.D.)
14 1/21 1/16
1 1/25 9/161 9/16
26 5/82 1/8
2 1/27 5/82 5/8
38 5/83 1/8
3 1/29 5/83 5/8
410 3/44 3/16

Pipe size: 2 1/2" (2 7/8" O.D.)
151 1/16
1 1/26 5/81 7/8
27 5/82 3/8
2 1/28 5/82 7/8
39 5/83 3/8
3 1/210 3/43 15/16
411 3/44 7/16

Pipe size: 3" (3 1/2" O.D.)
15 9/161
1 1/26 5/81 9/16
27 5/82 1/16
2 1/28 5/82 9/16
39 5/83 1/16
3 1/210 3/43 5/8
411 3/44 1/8

Pipe size: 3 1/2" (4" O.D.)
16 5/81 5/16
1 1/27 5/81 13/16
28 5/82 5/16
2 1/29 5/82 13/16
310 3/43 3/8
3 1/211 3/43 7/8
412 3/44 3/8

Pipe size: 4" (4 1/2" O.D.)
16 5/81 1/16
1 1/27 5/81 9/16
28 5/82 1/16
2 1/29 5/82 9/16
310 3/43 1/8
3 1/211 3/43 5/8
412 3/44 1/8

Pipe size: 4 1/2" (5" O.D.)
17 5/81 5/16
1 1/28 5/81 13/16
29 5/82 5/16
2 1/210 3/42 7/8
311 3/43 3/8
3 1/212 3/43 7/8
4144 1/2

Pipe size: 5" (5 9/16" O.D.)
17 5/81
1 1/28 5/81 1/2
29 5/82
2 1/210 3/42 9/16
311 3/43 1/16
3 1/212 3/43 9/16
4144 3/16

Pipe size: 6" (6 5/8" O.D.)
18 5/815/16
1 1/29 5/81 7/16
210 3/42
2 1/211 3/42 1/2
312 3/43
3 1/2143 5/8
4154 1/8

Pipe size: 7" (7 5/8" O.D.)
19 5/81
1 1/210 3/41 1/2
211 3/42
2 1/212 3/42 1/2
3143 1/8
3 1/2153 5/8
4164 1/8

Pipe size: 8" (8 5/8" O.D.)
110 3/41 1/16
1 1/211 3/41 1/2
212 3/42
2 1/2142 5/8
3153 1/8
3 1/2163 5/8
4174 1/8

Pipe size: 9" (9 5/8" O.D.)
111 3/41 1/16
1 1/212 3/41 1/2
2142
2 1/2152 5/8
3163 1/8
3 1/2173 5/8
4184 1/8

Pipe size: 10" (10 3/4" O.D.)
112 3/41
1 1/2141 9/16
2152 1/16
2 1/2162 9/16
3173 1/16
3 1/2183 9/16
4194 1/16

Pipe size: 11" (11 3/4" O.D.)
1141 1/8
1 1/2151 9/16
2162 1/16
2 1/2172 9/16
3183 1/16
3 1/2193 9/16
4204 1/16

Pipe size: 12" (12 3/4" O.D.)
1151 1/8
1 1/2161 9/16
2172 1/16
2 1/2182 9/16
3193 1/16
3 1/2203 9/16
4214 1/16

Pipe size: 14" (14" O.D.)
1162
1 1/2171 7/16
2181 15/16
2 1/2192 7/16
3202 15/16
3 1/2213 7/16
4223 15/16
Large sizes, insulation O.D. are in 1" increments.

Insulation thicknesses through 36" same as nominal.

All dimensions rounded to the nearest 1/16".
Top