many people often ask the question "Does the PE pipe have the diameter of DE140?" when purchasing PE pipes. In fact, the answer is very clear - PE pipes not only have DE140 specifications, but also "practical models" commonly used in municipal, agricultural and other fields.

First of all, it must be made clear that the "DE" of PE pipes refers to the outer diameter (External Diameter), which is the most commonly used specification marking method for PE pipes. DE140 means that the outer diameter of the pipe is 140 mm, and the corresponding wall thickness will vary according to the pressure level (such as PN1.0MPa, PN1.6MPa) (for example, the wall thickness of PN1.0 is about 8.1mm, and that of PN1.6 is about 10.3mm), but the core size is in line with national or industry standards.

From the standard basis, our country's current specifications such as "Polyethylene (PE) Pipe for Water Supply" (GB/T 13663-2018) and "Buried Polyethylene (PE) Structural Wall Pipeline System" (GB/T 19472-2019) all clearly include DE140 This specification has strict regulations on its dimensional deviation, compressive performance, raw material requirements, etc., to ensure that the product can meet the engineering needs.

Let's talk about the application scenario of DE140PE pipe. In fact, its "appearance rate" is not low: in municipal drainage, it is often used as a drainage branch pipe for residential areas or branch roads, replacing traditional concrete pipes to reduce the construction load; in farmland irrigation, it is the "main water pipe" for large-scale planting areas, delivering stable water and resistant to acid and alkali environments in the field; in the industrial field, it is used to transport mildly corrosive wastewater or chemical raw materials, which is more resistant to aging and maintenance than metal pipes.

In addition to specification compliance, the advantages of DE140PE pipe are also very suitable for actual needs: light weight (about 10 kilograms per meter, PN1.0 as an example), workers can handle it manually, without calling a crane; good flexibility, can slightly settle and bend along the foundation, reducing the risk of pipe explosion; strong corrosion resistance, buried in the ground without anti-corrosion coating, life can reach more than 50 years; connection is also simple, the strength of hot melt or electric melt interface is higher than the pipe itself, do not worry about water leakage.

Of course, there are also "pit avoidance" points when buying DE140PE pipes: be sure to choose products from regular manufacturers, check the certificate of conformity and third-party test reports, and confirm whether the parameters such as outer diameter, wall thickness, and pressure grade meet the standards; don't be greedy for cheap "non-standard pipes" - such pipes may shrink in wall thickness, mix old materials, and crack in a few years.

In general, PE pipes do have the diameter of DE140, and they are specifications that take into account practicality and cost performance. As long as you choose the right products that meet the standards, it can help you solve many water conveyance problems in engineering or life.