Thermal Insulation
R-Values of Common Plumbing Piping and Insulation.
In certain areas, AS3500 requires a minimum insulation of R=0.3, no current piping material will meet this requirement without suitable thermal insulation.
"R-value = Thickness / Conductivity. See AS3500.4 Section 8.6"
|
Conductivity (k)W/m/K |
OD mm |
ID mm |
Wall thickness mm |
R-Value K.m²/W |
Air |
0.02 |
|
|
6 |
0.3 |
Copper DN15 |
401 |
12.7 |
10.88 |
0.91 |
0.0000023 |
Lagged Copper (Approx..) |
Cu + Air + Plastic |
|
|
~2 |
0.034 |
Sharkbite PE-X 16mm |
0.35 |
16 |
11.6 |
2.2 |
0.006 |
Sharkbite PE-X 20mm |
0.35 |
20 |
15.1 |
2.45 |
0.007 |
Sharkbite PE-X 25mm |
0.35 |
25 |
18.6 |
3.2 |
0.009 |
E-Therm™ |
0.034 |
|
|
8 |
0.235 |
Requirement of AS3500.1 5.19 DN15 |
0.03 |
|
|
9 |
0.3 |
Requirement of AS3500.4 2003
amendment 1 2005 (table 8.1 & 8.2) |
0.0433 |
|
|
13 |
0.3 |
|
