3PE anti‑corrosion steel pipe for water transmission can adopt seamless steel pipe, spiral‑welded steel pipe and straight‑seam steel pipe as base materials. A full range of small‑to‑large diameters are available to meet different water‑supply project requirements.

The three‑layer polyethylene (3PE) anti‑corrosion coating is composed of fusion‑bonded epoxy primer, adhesive intermediate layer and high‑density polyethylene outer layer. With outstanding corrosion resistance, low water‑vapor permeability and stable mechanical properties, this 3‑layer coating has been widely adopted for buried water‑conveyance pipelines.

The outer anti‑corrosion coating plays a decisive role in the service life of underground water pipelines. For steel pipes of the same base material, pipelines with qualified 3PE anti‑corrosion treatment can remain intact underground for decades, while poor‑quality anti‑corrosion layers may lead to leakage within just a few years.

We can provide both standard‑grade and reinforced‑grade 3PE anti‑corrosion solutions according to local soil‑corrosion conditions. Manufactured strictly in accordance with GB/T 23257‑2017, all pipes are fully inspected before delivery, and mill‑test certificates can be supplied for overseas water‑supply projects. It is widely used for municipal tap‑water transportation, long‑distance water diversion, farmland irrigation, reclaimed‑water delivery and other water‑conveyance projects.