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2. Cross-linked polyethylene - Wikipedia

   en.wikipedia.org/wiki/Cross-linked_polyethylene

   A cross-linked polyethylene (PEX) pipe. Cross-linked polyethylene, commonly abbreviated PEX, XPE or XLPE, is a form of polyethylene with cross-links.It is used predominantly in building services pipework systems, hydronic radiant heating and cooling systems, domestic water piping, insulation for high tension (high voltage) electrical cables, and baby play mats.

3. Seasonal thermal energy storage - Wikipedia

   en.wikipedia.org/wiki/Seasonal_thermal_energy...

   The upper temperature limit for a BTES store is 85 °C (185 °F) due to characteristics of the PEX pipe used for BHEs, but most do not approach that limit. Boreholes can be either grout- or water-filled depending on geological conditions, and usually have a life expectancy in excess of 100 years.

4. Underfloor heating - Wikipedia

   en.wikipedia.org/wiki/Underfloor_heating

   For PEX reliability, installation procedures must be precise (especially at joints) and manufacturers specifications for a maximum temperature of water or fluid, etc. must be carefully followed. Design and installation

5. Plastic pipework - Wikipedia

   en.wikipedia.org/wiki/Plastic_pipework

   Plastic pipe is a tubular ... (polyethylene of raised temperature (RT)) PEX ... with a broad band of operating pressures. Max operating temperature is reported at 140 ...

6. Polyethylene - Wikipedia

   en.wikipedia.org/wiki/Polyethylene

   The high-temperature properties of the polymer are improved, its flow is reduced, and its chemical resistance is enhanced. PEX is used in some potable-water plumbing systems because tubes made of the material can be expanded to fit over a metal nipple and it will slowly return to its original shape, forming a permanent, water-tight connection.

7. Heat-shrink tubing - Wikipedia

   en.wikipedia.org/wiki/Heat-shrink_tubing

   Heat-shrink tubing (or, ... Polyolefin tubes, the most common kind, [8] have maximum continuous-use temperatures from -55 to 135 °C, and are used by the military ...

8. ‘Extreme cold temperatures’ crack PVC gas pipe in Topeka ...

   www.aol.com/extreme-cold-temperatures-crack-pvc...

   Topeka residents are advised to boil tap water before ingesting.

9. Radiant heating and cooling - Wikipedia

   en.wikipedia.org/wiki/Radiant_heating_and_cooling

   The lower temperatures and large surface area of underfloor heating systems make them ideal heat emitters for air source heat pumps, evenly and effectively radiating the heat energy from the system into rooms within a home. The maximum temperature of the heating surface can vary from 29–35 °C (84–95 °F) depending on the room type.