A good pipe, not only should have a good economy, and should have stable interfaces, materials, impact resistance, resistance to cracking, aging, corrosion resistance and a series of advantages compared with traditional pipe, HDPE pipe system has the following one series of advantages:
reliable connection: polyethylene piping systems connected by electric hot-melt, the joint strength than pipe body strength.
low temperature impact resistance: PE low temperature embrittlement temperature is very low, in the temperature range of -60-60 safe use. Winter construction, because material impact, and will not occur tube rattle.
good stress cracking resistance: HDPE with low notch sensitivity, high shear strength and excellent anti-scratch capabilities, resistance to environmental stress cracking resistance 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 pipe. Polyethylene is the electrical insulator, it will not rot, rust or electrochemical corrosion; In addition, it will not promote algae, bacteria or fungi.
aging, long service life: 2-2.5% with uniform distribution of carbon black polyethylene pipe can be used in outdoor or open storage for 50 years, will not be subjected to ultraviolet radiation damage.
wear resistance: HDPE pipe and comparison tests showed that the wear resistance of steel, HDPE pipe wear resistance of steel, four times. In the field of mud transport, compared with steel, HDPE pipe has better wear resistance, which means that HDPE pipe has a longer life and better economy.
Flexible good: HDPE pipe, flexible makes it easy to bend, works by changing the way pipeline to bypass the obstacles, in many cases, the flexible pipe fittings to reduce the amount and lower installation costs.
water resistance: HDPE pipe has a smooth inner surface, the Manning coefficient of 0.009. Smooth performance and to ensure non-adhesion properties of HDPE pipe with a pipe higher than the traditional transmission capacity, but also reduces the pressure loss and water pipeline energy consumption.
easy handling: HDPE pipe than concrete pipes, galvanized steel pipe and lighter, it is easy to transport and install, less manpower and equipment needs, meant that the installation costs greatly reduced.
variety of new construction methods: HDPE pipe with a variety of construction techniques, in addition to traditional excavation methods can be used for construction, but also can use a variety of new trenchless technologies such as pipe jacking, directional drilling, lining pipe, crack pipe, etc. for construction, which does not allow for the excavation of some places, is the only option, so the broader field of HDPE pipe applications.
