Guangzhou Hiseer Air Conditioning Co.,Ltd
Guangzhou Hiseer Air Conditioning Co.,Ltd Begin your green life with HISEER high efficiency heat pumps, reduce your carbon emissions, enhance your comfort and improve lives.
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Radiant floor heating PEX-A pipe systems
PEX-A stands for peroxide cross linked polyethylene. The molecular chains are linked into a three dimensional network that makes PEX-A durable over a wide range of temperatures and chemicals.
PEX-A piping is being used in radiant floor heating systems because it can withstand the extreme stresses of such an installation: expansion and contraction, mechanical abrasion, shearing and stretching.
Advantage:
1) Large temperature resistant area, high pressure resistant
2) Anti-corrosion, water hammer noise free
3) Smooth interior pipe surface, low fluid resistance, large outpouring capacity
4) long life cycle (50 years working life under 70℃)
5) Clean and sanitary, no oxygen seeping
6) Antistatic, fire retardant, frost resistant, shock resistant
7) Easy to bend, no rebound
8) Lightweight, easy to carry and store
9) Few sockets, leakage decreasing
10)Easy to install, extensive applicability
Specification:
|
Outer Diameter ( mm) |
Thinkness (mm) |
Inner diameter (mm) |
Weight (kg/m) |
|
16 |
2.0 |
12.0 |
0.090 |
|
20 |
2.0 |
16.0 |
0.116 |
|
25 |
2.3 |
20.4 |
0.169 |
|
32 |
2.9 |
26.2 |
0.268 |
|
40 |
3.7 |
32.6 |
0.425 |
|
50 |
4.6 |
40.8 |
0.659 |
Service temp. and working pressure(PN10)
|
Service temp. (℃) |
0-20℃ |
21-40℃ |
41-60℃ |
61-70℃ |
71-80℃ |
81-90℃ |
91-95℃ |
|
Max working pressure (Mpa) |
1.00 |
0.80 |
0.65 |
0.55 |
0.50 |
0.45 |
0.40 |
|
Max working pressure (kg/cm2) |
10.2 |
8.2 |
6.6 |
5.6 |
5.1 |
4.6 |
4.1 |
Material data:
|
Item |
Unit |
Value |
|
Density |
g/ cm2 |
0.94 |
|
Endurance capacity 20℃ |
kg/ cm2 |
180-220 |
|
Endurance capacity 80℃ |
kg/ cm2 |
275-95 |
|
Elasticity 20℃ |
﹪ |
440-550 |
|
Elasticity 80℃ |
﹪ |
260-330 |
|
Modulus of Elasticity 20℃ |
kg/ cm2 |
2500 |
|
Modulus of Elasticity 80℃ |
kg/ cm2 |
800 |
|
Bending strength |
kg/ cm2 |
250 |
|
FNP |
℃ |
﹥200℃ |
|
Easy ignition point |
℃ |
120 ℃ |
|
Coefficient of overall heat transmission |
Kcal/m2-hr-℃ |
22.3 |
|
Working temp. range |
℃ |
-40 ～120℃ |
|
crosslinking degree |
﹪ |
﹥ 85 |
|
thermocondutivity |
Kcal/m2-hr-℃ |
0.325 |