How to prevent corrosion of spiral steel pipes in water supply pipes

Usually, we use epoxy coal pitch paint. If the requirements are high, you can use 3 oils and 2 cloths. 3 layers of paint and two layers of fiberglass cloth, staggered application. If required, generally use epoxy coal pitch primer and topcoat, each applied twice. Simple and convenient, this is generally the solution.

Check whether the inside of the steel pipe contains potable water. If so, use environmentally friendly paint, such as epoxy polyamide paint.

PE anti-corrosion steel pipe base materials include seamless steel pipes, spiral steel pipes, and straight seam steel pipes. The three-layer polyethylene (3PE) anti-corrosion coating has been widely used in the oil pipeline industry due to its good corrosion resistance, water vapor permeability resistance, and mechanical properties. 3PE anti-corrosion steel pipe 3PE anti-corrosion steel pipe three-layer structure polyethylene anti-corrosion layer (3PE) combines the excellent properties of two anti-corrosion layers, fused epoxy powder coating and extruded polyethylene, combining the interface characteristics of fused epoxy powder coating and The chemical resistance properties, combined with the mechanical protection properties of the extruded polyethylene anti-corrosion layer, significantly improve the respective properties. Therefore, it is very superior as an outer protective layer for buried pipelines.