Why use copper tube for air conditioning refrigerant pipe?
Because the price of copper pipe is cheaper than aluminum, and its texture is relatively soft, easy to make elbow, but also easy to expand the tube, welding. If galvanized steel pipe, the pipeline inside the high-pressure gas and liquid, the junction where it is easy to rust, or copper pipe is better.
Although the copper price is higher, but has the good thermal conductivity and the oxidation resistance, wantonly uses the copper tube generally.
The small density and soft texture of aluminum pipe can not compare with copper tube in mechanical performance and bending performance. In addition, the density of aluminum and copper is different, the cross-section is not the same, if the aluminum tube and copper tube connected, the connection may be welding is not strong, easy to cause refrigerant leakage, and may even explode. Aluminum and copper connection easily lead to corrosion of aluminum tubes, resulting in cooling, heating effect worse, and even cause air-conditioning can not work properly. Due to the different material, half life is almost only copper aluminum pipe, the cooling effect is relatively worse due to bending performance than copper, if consumers want to move again, bending tubes, very difficult, basically need to replace the new pipe.
