Six advantages of choosing PE core tube

In the coastal areas of my country, the groundwater level is high and the soil humidity is high. The use of seamless steel pipes must be anti-corrosion and externally tempered by installing sun patterns, and the service life is only 30 years. PE core pipes can withstand the erosion of a variety of chemical media. Anti-corrosion treatment. In addition, it will not promote the growth of algae, bacteria or fungi, with a lifespan of up to 50 years.

1. Excellent physical properties.

The performance of medium-density polyethylene is between 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, and higher-density polyethylene is hotter The characteristic of excellent welding performance is conducive to the installation of plastic pipes.

2. The circulation capacity is large and it is economical.

The inner wall of the PE core tube is smooth and does not scale. The equivalent roughness ratio of the inner surface of the PE core pipe is 1/20 of that of the steel pipe. The PE pipe with the same pipe diameter, the same length and the same pressure has a flow capacity of about 30% larger than that of the steel pipe, so the economic advantage is obvious. Compared with metal pipes, PE coiled core pipes can reduce project investment by about one-third, and small diameter pipes that can be coiled can further reduce project costs.

3. Good toughness and flexibility.

PE coiled core pipe is a kind of high-toughness pipe with a breaking elongation of over 500%. It has strong adaptability to uneven settlement and dislocation of the pipe foundation, and has good seismic resistance. Therefore, it is suitable for earthquake-risk areas. Practice has proved that PE core pipe is a pipe with good shock resistance. In addition, the flexibility of the PE core tube is that the PE core tube can be coiled, reducing a large number of connecting pipes. The direction of the PE core pipe can be easily changed according to the requirements of the construction method. During construction, obstacles can be bypassed within the permitted bending radius of the pipe to reduce the difficulty of construction.

4. Convenient connection, simple construction and various methods.

PE coiled core pipe is light, easy to handle, easy to weld, and less welded. When the pipeline is long, coil pipe can be used to lay PE coiled core pipe trench. The requirement is far lower than that of steel pipe trench. And when the construction conditions are restricted, Using electrofusion welding. In addition, the method of pipe sinking can be used to lay underwater, which greatly reduces the construction difficulty and engineering cost.

5. Good airtightness.

The PE core tube itself adopts welding connection, which essentially ensures the identity of the interface material, structure and the tube itself, and realizes the integration of the joint and the tube. The tensile strength and blasting strength of the interface are higher than the pipe body, which can effectively resist the axial stress caused by the internal pressure. Therefore, compared with rubber ring type joints or other mechanical joints, the sealing performance is very good.

6. Good stress crack resistance.

PE coiled core pipe has low notch sensitivity, high shear strength, different anti-marking ability, and outstanding environmental stress resistance. Good low-temperature impact resistance: The low-temperature embrittlement temperature of PE core tube is extremely low, and it can be used safely in the temperature range of -60 degrees Celsius. Good wear resistance. The comparative experiment of the wear resistance of polyethylene pipe and steel pipe shows that its wear resistance is 4 times that of steel pipe.