The PE Pipe: PE is polyethylene plastic, the most basic plastic, plastic bags, plastic wrap are PE, HDPE is a high crystallinity, nonpolar thermoplastic resin. The appearance of primary HDPE is milky white, with a degree of translucent in the thin cross section. PE has excellent resistance to most living and industrial chemicals.
Advantages of the HDPE pipeline system:
1. Reliable connection: the polyethylene pipe system is connected by electric thermal melting mode, and the strength of the joint is higher than that of the pipe body.
2. Good low temperature impact resistance: the low temperature brittlement temperature of polyethylene is very low, and it can be used safely in the temperature range of-60-60℃. In winter construction, because the material impact resistance is good, the pipe brittle crack will not occur.
3. Good stress cracking resistance: HDPE has low gap sensitivity, high shear strength and excellent scratch resistance, and the environmental stress cracking resistance is also very outstanding.
4. Good chemical corrosion resistance: the HDPE pipeline can withstand the corrosion of a variety of chemical media, and the chemicals existing in the soil will not cause any degradation of the pipeline. Polyethylene is an electrical insulator that does not cause decay, rust, or electrochemical corrosion; and it also does not promote algae, bacteria, or fungi.
5. Aging resistance and long service life: the polyethylene pipeline containing 2-2.5% evenly distributed carbon black can be stored or used in the outdoor air for 50 years, and will not be damaged by ultraviolet radiation.
6. Good wear resistance: the wear resistance comparative test of HDPE Pipe and steel pipe shows that the wear resistance of HDPE Pipe Fitting is 4 times that of steel pipe. In the field of mud transportation, HDPE pipes have better wear resistance compared to steel pipes, which means that HDPE pipes have longer service life and better economy.
7. Acid and alkali resistance: The HDPE Pipe has a strong chemical erosion resistance, and is not affected by soil or pollutants in the pH range of 1.5 to 14.
8. Good flexability: The flexibility of PE Pipe makes it easy to bend, and the engineering method can bypass obstacles by changing the direction of the pipeline. In many cases, the flexibility of the pipeline can reduce the amount of pipe fittings and reduce the installation cost.
9. Small water flow resistance: the HDPE Fitting has a smooth inner surface, and its manning coefficient is 0.009. The smooth performance and non-adhesion characteristics ensure that the HDPE Fitting has a higher transmission capacity than the traditional pipe, but also reduce the pressure loss and water transmission energy consumption of the pipeline.
10. Convenient handling: PE Fitting is lighter than concrete pipeline, galvanized pipe and steel pipe, it is easy to carry and install, lower manpower and equipment requirements, which means that the installation cost of the project is greatly reduced.
11, a variety of new construction methods: PE Pipe Fitting has a variety of construction technology, in addition to the traditional way of excavation construction, can also use a variety of new trenchless technology such as pipe jacking, directional drilling, lining, crack pipe construction, for some places do not allow excavation, is a good choice, so HDPE pipeline is more widely used.