Document 5by2oMd07qb2zgzj29o3jkeX0
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CHAPTER 32
1960 Guide
Table 6 .... Heat Insulation Factors for Varioos Insulations (To bo Applied to Ryi. I, 2, 3, end 4)
Temperature Difference, Pipe to Air, F 0e$
PIPE IN8ULA-
TION
ASBESTOS Molded Amosite and Binder
lAminnted Asbestos Paper (35-40/in.) Corrugated and Laminated (4 ply/in.) Asbestos Paper (6 ply/in.)
(8 pJy/in.)
CALCIUM SILICATE
CELLULAR GLASS CORK (No added binder)
DIATOMACEOUS SILICA 22 lb
DIATOMACEOUS SILICA 25 lb 85% MAGNESIA
MINERAL WOOL (Rock. Slag, or Glass)
Low Temp. (Asphalt or Resin Bonded) Low Temp. (Fine Fiber Res. Bond)
High Temp. (Metal Reinforced)
PLASTICS (Foamed) RUBBER (Foamed) WOOL FELT
HAIR FELT OR HAIR FELT PLUS JUTE
BLOCKS AND BOARDS
ASBESTOS MOLDED AMOSITE
CALCIUM SILICATE
OORKBOARD (Natural Binder) MINERAL WOOL (Low Tenm.)
MINERAL WOOL (High Temp.) MINERAL WOOL (Inorganic Binder)
TIT,ANKETS
MINERAL WOOL (Felt Flexible Type) MINERAL WOOL (Felt Semi-Rigid Type)
INSULAT- 85% MAGNE8IA ING CE MINERAL WOOL MENT
40 70 100 200 300 500 700 900
1.595 1.442
1.394
0.978 1.152
1.599 1.442
1.387
0.966
1.131 1.614 1.443 1.375
0.955 1.110
1.628 1.444
1.363
0.931 1.067
0.879 1.131
0.869 1.119
1.041 1.195 0.859
1.107
1.018 1.190
1.068
0.996 1.185
1.027
0.950 1.175
1.136 1.296 0.946
1.052 1.206
0.968 1.115
0.900 0.961 0.963 0.740 0.733 0.727
0.879 0.893 0.907 0.935
0.909 0.705 0.994
0.877
0.914 0.702
0.997 0.804
0.918 0.759 1.000
0.851
0.861 0.917
0.854 0.907
1.088
0.988 0.847
0.896
0.880 1.003
1.067 1.025 0.974 0.960
0.901* 0.923 0.990 0.978
1.004 0.932
0.953
0.962 0.904
0.928
0.920 0.876
0.815 0.827 0.841 0.896 0.951 0.830 0.840 0.851 0.895 0.938
1.275 1.224' 1.173 1.070 1.370 1.344 1.317 1.264 1.317
Pipe and Industrial Insulation
473
W scau 9' SCALE t* tO* SCALE J-e
S-l/T
O O 60
0
20 40
60 80
100
120
140
160
180
HEAT LOSS-BTU PER (SQUARE FOOT CANVAS SURFACE) (HR)
[Coavr:!, Roofing, and Varfov, Coforad RaRdad Sorfacoi) Fig. 5 .... Heat lass from Canvas-Covered Cylindrical Surfaces of Various Diameters
M
(From Reference 2 med by permiaron. Not to be reprinted wjttout permbdoa) Fig. 6 .... Chart for Determining Economical Thickness of Pipe Insulation