MIL-HDBK-1003/8A
Change 2, 30 December 1991
Table 3
Insulation Thickness (in inches) to be Assessed in Calculations
WITH LOW
WITH HIGH
TEMPERATURE
TEMPERATURE
WATER (250
WATER (above
degrees F and
WITH STEAM
250 degrees F)
lower)
(any pressure)
Thermal
On the
On the
On the
On the
On the
On the
Supply
Return
Supply
Return
Supply
Condensate
of Insulation
Pipe
Pipe
Pipe
Pipe
Pipe
Pipe
(Btu/hr,
square feet,
degrees F/in.)
Up to 0.2
1/2
1/2
1/2
0
1/2
0
1
3/4
1/2
1/2
1/2
1/2
1
1
1
1/2
1
0
1-1/2
1
1
3/4
1
3/4
1-1/2
1-1/2
1-1/2
3/4
1-1.2
0
-
-
1-1/2
1
1-1/2
1
From 0.2
to 0.4
3/4
3/4
3/4
0
3/4
0
1-1/2
1
3/4
3/4
3/4
3/4
1-1/2
1-1/2
1-1/2
3/4
1-1/2
0
2-1/2
2
1-1/2
1
1-1/2
3/4
2-1/2
2-1/2
2
1
2-1/2
0
-
-
2
1-1/2
2-1/2
1-1/2
From 0.4
to 0.6
2
2
2
0
2
0
3
2
2
2
2
2
3
3
3
2
3
0
4
3
3
3
3
2
4
4
4
2
4
0
-
-
4
4
4
2
Above 0.6
3
3
3
0
3
0
4
3
3
3
3
3
4
4
4
3
4
0
5
3
4
4
4
3
5
5
5
3
5
0
-
-
5
4
5
3
13
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