3M TTS-5-1-OJ, Application Manual

Page: 15 / 48

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15
NPS
Pipe Size
Low Ambient Temperature Insulation
Thickness
(Fibreglass)
-12°C
(10°F)
-18°C
(0°F)
-23°C
(-10°F)
-29°C
(-20°F)
-40°C
(-40°F)
1X TTS-10
1X TTS-10
1X TTS-10
One Pass TTS-5
One Pass TTS-8
Two Passes TTS-8
1X TTS-10
1X TTS-10
1X TTS-10
1X TTS-10
One Pass TTS-5
One Pass TTS-5
Two Passes TTS-8
One Pass TTS-5
One Pass TTS-8
One Pass TTS-8
1X TTS-10
1X TTS-10
1X TTS-10 2 X TTS-8
1X TTS-10
One Pass TTS-8
One Pass
TTS-10
Two Passes TTS-8
Two Passes
TTS-10
0.5"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
6"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
6"
8"
10"
12"
14"
1"
1.5"
2"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
6"
8"
10"
12"
14"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
6"
8"
10"
12"
14"
1"
Non-metallic Piping
Selection Chart 1.2.2: Non-metallic Piping
Additional considerations for
non-metallic piping
For freeze-protecting non-metallic pipes,
TTS™ Self-Regulating Heating Cable is to
be installed with a continuous covering
of 3M™ Aluminum Foil Tape. The data
in selection chart 1.2.2 is based on this
installation method.
Heat loss characteristics of non-metallic
pipes are similar to metal pipes, but the
TTS™ Self-Regulating Heating Cable
output is lower because of the insulating
properties of the pipewall material. Design
selection chart 1.2.2 reflects these values.
Note: Chart may also be used with polyisocyanurates
or mineral wool of the same thickness.