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High Density Polyethylene (HDPE) Double Wall Corrugated Pipe

HDPE double-wall corrugated pipe is a new type of pipe with annular structure outer wall and smooth inner wall. It was first successfully developed in Germany in the early 1980s. After more than ten years of development and improvement, it has developed from a single variety to a complete product series. It is very mature in production process and use technology. And in accordance with GB/T 19472.1-2019 "Buried Polyethylene (PE) Structural Wall Piping System" Part 1: "Polyethylene Double Wall Corrugated Pipe".

Key words

Resist external pressure

The annular corrugated structure enhances the ring stiffness of the pipe and the resistance of the pipe to soil loads.

Environmentally friendly and non-toxic

Polyethylene is a non-toxic raw material, much lower than the weight of concrete pipes, and has no impact on the environment.

durable

The chemical stability is good, the wear resistance is even several times higher than that of steel pipes, and the service life can reach more than 50 years.

Easy construction and maintenance

Light weight, easy to carry and connect, quick construction and simple maintenance.

Cold and impact resistant

It is not necessary to take special protection measures during construction above -30°C, and it has good impact resistance.

low engineering cost

Under the condition of equal load, compared with the solid wall pipe of the same material, it saves about half of the raw material.

Mechanical properties of HDPE double-wall corrugated pipes

project	skills requirement
Ring stiffness	SN4≥4KN/m2	SN8≥8KN/m2
Impact strength	TIR≤10%
Ring flexibility	The sample is smooth, no reverse bending, no cracking, and no disengagement of the two walls
Oven test	No bubbles, no delamination, no cracking
Creep rate	≤4

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High Density Polyethylene (HDPE) Double Wall Corrugated Pipe

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High Density Polyethylene (HDPE) Double Wall Corrugated Pipe