Good flexibility: HDPE pipe flexible makes it easy to bend, the project can go around the obstacle by changing the way the pipeline, in many cases, the flexible pipe fittings to reduce consumption and lower installation costs. Water resistance: HDPE pipe has a smooth inner surface, the Manning coefficient of 0.009. Smooth performance and non-adhesive properties ensure HDPE pipe has a higher than traditional pipe transmission capacity, but also reduces the pressure loss and water piping in energy consumption. Easy handling: HDPE pipe than concrete pipes, galvanized pipe and steel pipe lighter, it is easy to handle and install, less manpower and equipment needs, means that the installation cost of the project is greatly reduced variety of new construction methods: HDPE pipe has a variety of construction techniques, in addition to the traditional excavation for construction, but also can use a variety of new technologies such as trenchless pipe jacking, directional drilling, liner, crack pipes, etc. for the construction, which some do not allow excavation sites pe200 pipe, it is the only option, therefore HDPE pipe applications more widely. LDPE, LLDPE melt viscosity of the resin is small, good fluidity, easy processing pipe, thus their choice of a melt index is wider, usually between MI 0.3-3g / 10min. Reliable connection: the electrical connection between the hot-melt polyethylene pipe systems, the joint strength is higher than pipe body strength. Low-temperature impact resistance: Low temperature brittleness of polyethylene is very low, it can be safely used within a temperature range of -60-60 ℃. Construction in winter, because the material impact resistance, does not occur tube embrittlement. Good stress cracking resistance: HDPE has a low notch sensitivity, high shear strength and excellent anti-scratch ability, resistance to environmental stress cracking performance is also very prominent. Good chemical resistance: HDPE pipe can withstand a variety of chemical media corrosion, chemicals present in the soil will not cause any degradation of the pipeline. Polyethylene is an electrical insulator upvc pipe, it will not rot, rust or electrochemical corrosion phenomenon; in addition it will not promote algae, bacteria or fungal growth. Anti-aging, long service life: polyethylene pipe containing 2-2.5% uniform distribution of carbon black can be stored or used for 50 years in outdoor, it will not be subjected to ultraviolet radiation damage. Good wear resistance: abrasion comparative tests show that HDPE pipe and steel pipe, wear HDPE pipe is 4 times the steel pipe. In the mud transportation field, compared with the steel pipe, HDPE pipe has better wear resistance, which means that HDPE pipe has a longer life and better economy. General provisions ① pipe, tube should have the quality inspection departments of product quality inspection report and the manufacturer's certificate. ② pipe storage, handling and transportation when the application of non-metallic rope tying, pipe ends should be blocked. ③ pipe, tube storage, handling and transportation time shall not be tossing and drama crack hit. ④ pipe, tube storage, handling and transportation time shall the sun and rain; no contact with oil, sour, salty and other chemicals. ① pipe, pipe fittings should be stored in well-ventilated, temperature does not exceed 40 ℃ warehouse or a simple shed. ② pipe should be stacked horizontally on a flat support or ground. Stack height should not exceed 1.5 meters, when the pipe tied into 1mx1m square bales, plus support and protection on both sides, the stacking height may be appropriate to increase, but not more than 3m, pipe water supply pipe should be neatly stacked layer by layer, ③ pipe, pipe fittings in outdoor temporary stockpiles, should be covered. When the pipe ④ Store the different pipe diameters and different wall thicknesses are stacked. Water pipe, pipe, plastic two-out double by Xiong Zan Kong Ming plastic products factory. Xiong Zan Pair Ming plastics factory (1620231.707070.cn) strong, credible, in Baoding UPVC pipe industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead two-out plastic into the brilliant and you work for a better future!