1. Good hygienic performance. The raw material of the pipe is a polyolefin, and its molecules are composed only of C and H elements. The raw materials and auxiliary materials completely meet the hygienic standard, and the corrosion resistance is good, and the ions in the water are not chemically affected and will not corrode. 2. Pipe resistance is small. The straight tube is smooth and does not scale. The frictional resistance of the lead process is smaller than that of the box pipe. When the pipe fittings are connected, the sectional area is not small, and the local resistance coefficient is small metal pipe. 3. Pipe and pipe scrap can be recycled. After being cleaned and crushed, the waste can be directly used to produce pipes and fittings; it has no pollution to the environment during production and construction. It belongs to the color building materials. 4. Insulation and energy saving. The thermal conductivity of pp pipe material is 0.21 W/(mK), which is only 1/200 of the steel pipe. In general, the energy saving effect is obvious when the insulation is used for hot water pipes; the expansion force generated when the temperature changes is small. It is suitable for direct burying in the wall and floor. 5.pp pipe insufficiency: a, rigidity and impact resistance is worse than metal pipes, so it is easy to be damaged during storage and construction. b, pp pipe linear expansion coefficient is large, from 0.14 mm / (m. K) ~ 0.16 (m. K), should be used dark, in the surface mounted or non-direct buried dark and tender arrangements must take measures to prevent pipe expansion and deformation. 6. Better heat resistance and long service life. The pp pipe grade has a high working temperature of 95 ° C and a long-term use temperature of 70 ° C under a pressure of 1.0 MPa. It meets the upper limit temperature of the hot water supply. Under the working pressure PN1.0MPa, the service life can reach more than 50 years: the service life can reach more than 100 years at normal temperature. 7. Easy to install and reliable connection. The pipe is not only simple in production process, low in equipment investment and light in weight, but also weighs only 1/9 of the steel pipe and 1/10 of the purple steel pipe, which reduces the construction intensity of the workers; It has good hot melt function, convenient and reliable installation, and the strength of the joint is greater than that of the pipe wood. The PP pipe is made of pine wood when it is made. Its working principle is to support and fix it under the heat preservation or cold pipe frame. Then you can use the double bolt pipe clamp to clamp the red pine block. So that it can be more fixed to the top, thus increasing its overall stability. PP compression fitting is also a kind of air-conditioning-supporting product. It has strong anti-corrosion and anti-aging effects. It can play its role and value well when it is used, because the cooling capacity of the cold pipe is through the support base. It may be transmitted to the top of the structural beam, so this product is installed to prevent the cold volume from propagating, which will result in a cold bridge, which ultimately acts as insulation, cold insulation, vibration damping or buffering thermal expansion. Therefore, it is more convenient to use, and it is simple to install, which can meet people's needs.
