Double wall corrugated pipe

Double wall corrugated pipe

Shijiazhuang Shentong Plastic Industry Co., Ltd. specializes in the production of plastic pipes. Among the many plastic pipes we export, double wall corrugated pipes are very popular in Europe and Oceania. Today we will introduce in detail the double wall corrugated pipe.

Double wall corrugated pipe is a new type of pipe material with circular structure outer wall and smooth inner wall. High density polyethylene (HDPE) double wall corrugated pipe is a new type of pipe with a circular structure outer wall and a smooth inner wall. It was first developed in Germany in the early 1980s. After more than ten years of development and improvement, it has evolved from a single variety to a complete product series. The production process and usage technology are already very mature. Due to its excellent performance and relatively economical cost, it has been greatly promoted and applied in developed countries such as Europe and America. In China, the promotion and application of HDPE double wall corrugated pipes are in an upward trend, and all technical indicators have met the usage standards. The inner walls of double walled corrugated pipes are usually blue and black in color, with some brands using yellow for the inner walls.

Process characteristics

·Digital full line centralized control, dual machine coextrusion, dual layer diversion

·Full vacuum belt feeding

·Specification for randomly expanded HDPE double wall corrugated pipes with one-time forming

Product specifications

DN110mm, DN125, DN150, DN220, DN225mm, DN250, DN300mm, DN400mm, DN500mm, DN600mm, DN700mm, DN800, DN1000, DN1200 and other specifications of products

Advantages of Double Wall Corrugated Pipe

·Reasonable structure and beautiful appearance

·Temperature resistance -40 ℃ -60 ℃

·Low resistance, high flow rate

·Strong flame retardancy and long service life

·Reliable hygiene performance

·Low comprehensive cost, acid alkali resistance, and corrosion resistance

·High strength and strong seismic performance

·Energy conservation and consumption reduction

·Convenient installation and transportation

Product Features Editing Broadcast

High density polyethylene (HDPE) has excellent chemical stability, aging resistance, and resistance to environmental stress cracking. The HDPE double wall corrugated pipe produced from it as raw material belongs to flexible pipe. Its main performance is as follows:

Strong resistance to external pressure

The outer wall has a circular corrugated structure, greatly enhancing the ring stiffness of the pipe, thereby enhancing the resistance of the pipe to soil loads. In this performance aspect, HDPE double wall corrugated pipe has obvious advantages compared to other pipes.

Low engineering cost

Under the same load conditions, HDPE double wall corrugated pipes only require a thinner pipe wall to meet the requirements. Therefore, compared to solid wall pipes of the same material specification, HDPE double wall corrugated pipes can save about half of the raw materials, so the cost is also lower. This is another prominent feature of this pipe material.

Convenient construction

Due to the lightweight and convenient handling and connection of HDPE double wall corrugated pipes, construction is fast and maintenance work is simple. In the tight schedule and construction

Under poor conditions, its advantages are more obvious.

Low friction coefficient and high flow rate.

HDPE double wall corrugated pipes made of HDPE can pass through a larger flow rate than other pipes of the same caliber. In other words, under the same flow requirements, HDPE double wall corrugated pipes with relatively small diameters can be used.

Low temperature resistance and impact resistance

The embrittlement temperature of HDPE double wall corrugated pipe is -70 ℃. Under general low temperature conditions (above -30 ℃), special protective measures do not need to be taken during construction. Winter construction is convenient, and HDPE double wall corrugated pipes have good impact resistance.

Good chemical stability

Due to the lack of polarity in HDPE molecules, their chemical stability is excellent. Except for a few strong oxidants, most chemical media do not have a destructive effect on it. The soil, electricity, and acid-base factors of the general usage environment will not cause damage to the pipeline, do not breed bacteria, do not scale, and its circulation area will not decrease with the increase of operating time.

Long service life

Under the condition of not being exposed to sunlight and ultraviolet rays, the service life of HDPE double wall corrugated pipes can reach over 50 years.

Excellent wear resistance

Germany has demonstrated through experiments that the wear resistance of HDPE is even several times higher than that of steel pipes.

Appropriate deflection

A certain length of HDPE double wall corrugated pipe can be slightly bent axially, and is not affected by a certain degree of uneven settlement on the ground. It can be directly laid in slightly non straight grooves without the use of pipe fittings, and so on.