Copper tube set of metal pipes and non-metallic pipe advantages in one. It is harder than plastic pipe, with the general metal of high strength (cold-drawn copper pipe strength and the same wall thickness of the steel pipe is comparable); it is easier than the general metal bending, good toughness and high ductility, with excellent vibration resistance, impact resistance and anti-freezing and expansion performance.
Copper tube can withstand extremely cold and hot temperatures, from -196 degrees to 250 degrees applicable range, and adapt to drastic changes in temperature (- high temperature - low temperature - high temperature -), the use of performance will not be long-term use and drastic changes in temperature. The performance will not be reduced due to long-term use and drastic changes in temperature, and will not produce aging phenomenon. This is the ordinary pipe can not be.
The linear expansion coefficient of copper pipe is very small, is 1/10 of plastic pipe, can resist fatigue. In the temperature change will not produce excessive thermal expansion and contraction and lead to stress fatigue rupture.
These characteristics make the copper pipe in the application of cold areas have great advantages. Cold areas have a large temperature difference between morning and evening, the linear expansion coefficient of ordinary pipe and low strength, very easy to produce due to thermal expansion and contraction of stress fatigue rupture. Some claim that -20 degrees is not brittle, but in fact can not withstand the working pressure, and the service life is very short, does not have practical significance, although you can use thermal insulation measures, but in the transportation, storage and installation process is difficult to avoid encountering low temperatures, and the performance of the copper pipe at -183 degrees and room temperature is the same.
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