Hannel RadiantDirect PEX
Larger diameter tubing is not very flexible. In some applications, a larger diameter tubing can be made to work. However, in most of the projects we design, larger diameter tubing poses installation and design complications. We want your radiant installation to be simple and as easy as possible. The more flexible the tubing the easier it is to install!
Hannel-RadiantDirect tubing is the most flexible PEX tubing in the world. The picture above shows Hannel-RadiantDirect tubing being bent to a 4 inch diameter. Most other brands of A-type 1/2" PEX can't be bent tighter than a 9 inch diameter. 7/8" PEX is difficult to bend beyond an 18" diameter without kinking. Hannel-RadiantDirect is much easier to work with and install in cold weather. It is much more resistant to kinking or damage. In addition, Hannel-RadiantDirect will withstand more heat and pressure than any other type of PEX.
Factory link http://www.lkpex.se
Property Comparisons
| Property | Hannel-RadiantDirect Tubing | Traditional PEX-a |
|---|---|---|
| Flexibility | Considerably more flexible than any other PEX tubing meeting ASTM | Somewhat better flexibility than Radiation and Silane crosslinked tubing. |
| Strength | Withstands higher inside pressures than other PEX Tubing | Meets ASTM |
| Homogeneity | Excellent | Not very good. Worse than Radiation & Silane |
| Thermal Memory | Excellent | Good. Better than Radiation & Silane. |
| Reparability | Excellent | Excellent |
| Kinking resistance | Excellent | Fair. Better than Radiation and Silane |
| Barrier property | 25 times less than DIN 4726 | Meets DIN 4726 |
| Thermo Stability | Excellent | Better than ASTM requirements |
| Memory effect of being coiled | Little. Easy to bend in any direction. | Fair. Better than Radiation and Silane. |
| Minimum bending radius | Narrower than any other PEX tubing, two inch radius | Fair. Better than Radiation and Silane |
Hannel-RadiantDirect tubing key benefits
Hannel-RadiantDirect tubing is cross linked using peroxide cross linking, a PEX-a process. The Hannel-RadiantDirect Tubing process starts with a raw material with a density of around 0.940 kg/m 3 and the final product has a density of around 0.930 kg/m 3 !! This is considerably less than other PEX process, and results in a very flexible tubing. How is it possible that a material with this low density still exceeds the ASTM requirements for PEX? The reason is that inventors of this process has succeeded to align most molecular chains AROUND the tubing circumference! Traditional extrusion processes does not provide any orientation of molecules, but their orientation are at random. By having the molecules aligned around the tubing they are ready to absorb the stress caused by inside pressure. So in spite of lower density this tubing can actually resist a higher inside pressure than traditional PEX tubing! At the same time, since few molecules are stretched along the tubing, the flexibility is even better than what is explained by the density alone! You are welcome to test the pressure resistance. Just hook up our tubing in series with a competitor's tube and increase the pressure until one of them bursts.
It will not be the Hannel-RadiantDirect Tubing!!
The facts are:
- The Pex -A tubing manufactured by Hannel-RadiantDirect is the finest Pex tubing manufactured in the world today.
- It is made by the Engel method and the cross linking is done in a radial pattern giving it the highest temperature and pressure ratings.