Pe prestressed corrugated pipe resistance to external pressurePe prestressed corrugated pipe resistance to external pressure
PE corrugated pipe, which is a plastic maintenance waterproof casing extruded by high-pressure polyethylene material, is also called corrugated pipe because its external environment is an annular wave pattern. It plays the role of maintaining the cable is not damaged. Good wear resistance, corrosion resistance and other characteristics. Because PE materials are more resistant to corrosion, abrasion and embrittlement, and are low-carbon and environmentally friendly, PE bellows are also commonly used as rainwater wastewater risers.
Polyethylene plastic (HDPE) double-wall corrugated pipe is generally called PE corrugated pipe. HDPE double-wall corrugated pipe is a new type of pipe fitting with an annular structure surface and a smooth inner cavity. It was developed in France in the early 1980s. After more than ten years of development trend and soundness, it has already changed from a single type of development trend to a detailed series of products. The production process and application technology are already very mature. Because of its excellent characteristics and relative economic development engineering cost, it has already obtained huge marketing promotion and application in capitalist countries such as the United States.
HDPE double-wall corrugated pipe has excellent organic chemical reliability, anti-aging and resistance to natural environment stress cracking. The HDPE double-wall corrugated pipe manufactured from it as raw material belongs to flexible pipe. The main features are as follows:
Strong ability to resist external pressure
The surface has a ring-shaped wavy structure, which greatly improves the ring stiffness of the pipe fittings, and thus improves the resistance of the pipeline to the load of the soil layer. At this level of characteristics, HDPE double-wall corrugated pipe is more significant than other pipe fittings The advantages.
Low project budget
Under the standard of equal load, HDPE double-wall corrugated pipe only needs a thinner wall thickness to meet the requirements. Therefore, compared with solid wall pipes of the same material specifications and models, about half of the raw materials can be saved, so the HDPE double-wall corrugated pipe project cost is also lower. It is another very prominent feature of the pipe fitting.
Because HDPE double-wall corrugated pipe is very light, transportation and connection are very convenient, so the construction of the project is convenient and the maintenance work is simple. Under the conditions of rush time and poor construction standards, its advantages are more significant.
Small friction resistance, large total flow
The HDPE double-wall corrugated pipe using HDPE as the raw material can be based on a larger total flow than other pipe fittings of phase specifications. In other words, under the same total flow regulations, HDPE double-wall corrugated pipes with relatively small specifications can be selected.
Excellent cold resistance and impact resistance: The embrittlement temperature of HDPE double-wall corrugated pipe is -70 ℃. Generally, under the ultra-low temperature standard (about -30 ℃), there is no need to adopt unique safeguard measures during the construction of the project. The construction measures in winter are convenient, and the HDPE double-wall corrugated pipe has excellent impact resistance.If you want to know more about it please do not hesitate to contact me. WhatsApp:+86-15966835076
Good organic chemistry reliability: Because HDPE molecular structure has no optical rotation, organic chemistry reliability is very good. Except for a few oxidants, most organic chemicals do not destroy them. Generally, the soil layer of the natural environment, power engineering, and strong acid and alkali elements are not easy to destroy the pipeline, do not breed germs, and do not accumulate scale. The total area of commodity circulation is not easy to decrease with the increase of operating time.
Long service life: The application period of HDPE double-wall corrugated pipe reaches about 50 years without being subject to the standard of solar ultraviolet light.
Excellent wear resistance: France has confirmed through experiments that the wear resistance of HDPE is several times higher than that of seamless steel pipes.
Moderate tensile strain: The length of HDPE double-wall corrugated pipe can be slightly tensile strain in the radial direction, not affected by the uneven foundation settlement of the road surface must be horizontal, can be immediately laid in the slightly curved pipe trench without pipe .