PE pipes are now widely used in multiple product categories, including sewage, drainage, municipal, water supply, gas, electricity, and other fields. So, what are the advantages of PE pipes compared to other pipes? The summary is as follows:
1. Corrosion resistance and long service life. In coastal areas of China, where the groundwater level is high and the soil humidity is high, seamless steel pipes must be corrosion-resistant and installed with external tempering, and have a service life of only 30 years. However, PE pipes can withstand corrosion from various chemical media and do not require anti-corrosion treatment. In addition, it does not promote the growth of algae, bacteria, or fungi and has a lifespan of up to 50 years.
2. Excellent physical performance. The performance of medium density polyethylene is between that of high-density polyethylene and low-density polyethylene. It not only maintains the rigidity and strength of high-density polyethylene, but also has good flexibility and creep resistance. Moreover, high-density polyethylene has excellent hot melt connection performance, which is conducive to the installation of plastic pipes.
3. Large circulation capacity, economically cost-effective. The inner wall of the PE pipe is smooth and free from scaling. The equivalent absolute roughness ratio of the inner surface of PE pipes is 1/20 of that of steel pipes. Under the same diameter, length, and pressure, the flow capacity of PE pipes is about 30% greater than that of steel pipes, indicating significant economic advantages. Compared with metal pipelines, PE pipelines can reduce engineering investment by about one-third, and small-diameter pipes that can be coiled can further reduce engineering costs.
4. Good toughness and flexibility. PE pipe is a high toughness pipe material with a fracture elongation of over 500%. It has strong adaptability to uneven settlement and misalignment of pipe foundations, and has good seismic resistance. Therefore, it is most suitable for earthquake prone areas. Practice around the world has proven that PE pipe is the best seismic resistant pipeline. In addition, the flexibility of PE pipes is that they can be coiled, reducing the need for a large number of connecting fittings. The direction of PE pipes can be easily changed according to the requirements of the construction method. During construction, obstacles can be bypassed within the allowable bending radius of the pipe to reduce construction difficulty.
5. Convenient connection, simple construction, and diverse methods. PE pipes are lightweight, easy to transport, easy to weld, and have fewer welding joints. When the pipeline is long, coiled pipes can be used to lay PE pipe trenches, which require much lower requirements than steel pipe trenches. Moreover, when construction conditions are limited, electric fusion welding can be used. In addition, the method of pipe sinking can be used to lay underwater, greatly reducing construction difficulty and engineering costs.
6. Good sealing performance. The PE pipe itself adopts fusion connection, which essentially ensures the consistency between the interface material, structure and the pipe body, realizing the integration of the joint and the pipe material. The tensile strength and bursting strength of its interface are higher than those of the pipe body, which can effectively resist the circumferential stress and axial stress generated by internal pressure. Therefore, compared with rubber ring joints or other mechanical joints, the sealing performance is very good.
7. Easy to maintain, can be repaired and installed without stopping water and gas supply.
8. Good resistance to stress cracking: PE pipes have low notch sensitivity, high shear strength, and excellent resistance to environmental stress. Good low-temperature impact resistance: The low-temperature brittleness temperature of PE pipes is extremely low, and they can be safely used within the temperature range of -60 degrees Celsius. Good wear resistance. The comparative experiment of wear resistance between polyethylene pipe and steel pipe shows that its wear resistance is four times that of steel pipe.
There are many advantages to PE pipes, and their performance advantages are obvious. There is no need for me to say more. Everyone, hurry up and choose.