Strictly speaking, PE pipe is a general term for polyethylene pipe, and HDPE pipe is one of the types. According to the density of polyethylene materials, PE pipe can be divided into:

high density polyethylene (HDPE) pipe: high density (0.941-0.965 g/cm 3), high strength, good temperature resistance, widely used in municipal water supply, drainage, gas transportation and other fields.

medium density polyethylene (MDPE) pipe: medium density (0.926-0.940 g/cm 3), good flexibility, suitable for low pressure fluid transportation.

low density polyethylene (LDPE) pipe: low density (0.910-0.925 g/cm 3), soft texture, mostly used for agricultural irrigation or temporary pipelines.

why HDPE pipe is often referred to as PE pipe?

Because HDPE pipes are the most widely used in engineering, and their performance is significantly better than MDPE and LDPE, in industry habits, people often directly equate "PE pipe" with "HDPE pipe". For example, the "PE double-wall corrugated pipe" mentioned in the municipal drainage system usually refers to the double-wall corrugated pipe made of HDPE.

How to distinguish?

Product identification: Regular pipes will be marked with materials (such as "HDPE" or "PE80/100").

use scenarios: HDPE pipes are preferred for high-pressure and long-term use scenarios, and other types can be considered for temporary or low-pressure scenarios.

If purchasing or construction is required, it is recommended to clarify the requirements and verify the material to ensure compliance with engineering standards