The choice of PP air duct must be based on its material properties and cannot be sloppy.
PP air ducts are widely used in chemical industry, environmental protection, food hygiene, building water supply and drainage and other fields. It can transport various corrosive media below 90℃. Its stiffness and load-bearing strength are superior to traditional plastic pipes. At present, many PP air ducts on the market contain impurities, and the brand of Yulong is different. Consumers have a hard time choosing.
Good hygiene performance. The raw material of the pipeline is polyolefin, the molecule of which consists only of C and H elements. The raw and auxiliary materials fully meet the hygienic standards, have good corrosion resistance, have no chemical effect on all ions in the water, and do not rust.
Heat preservation and energy saving. The thermal conductivity of PP air duct is 0.21 W/(mK), which is only 1/200 of that of steel pipe. Generally speaking, when the hot water pipeline needs to be insulated, the overflow energy saving effect is obvious. The expansion force generated when the degree of change changes is also small. Suitable for direct burial in buried wall and floor coverings.
Good heat resistance and long service life. The working temperature of the pipeline can reach 95 ℃, and the long-term use temperature is 70 ℃ under the pressure of 1.0 MPa, which meets the upper limit temperature of hot water supply.
