3PE anti-corrosion coating is that the steel pipe is protected by three layers to prolong the life of service from 5-10years to 50-100years.
First layer is Fusion bonded epoxy layer (FBE> 100µm), the second layer is adhesive (AD) 170 ~ 250µm, and the third layer is polyethylene (PE) stripe 2.5 ~ 3.7mm.
3PE steel coating pipe has the features of high mechanical strength, excellent electrical insulation performance, Process accuracy and environmental friendliness.

3PE (3-layer polyethylene) coated pipes are high-performance anti-corrosion steel pipes widely used in demanding environments for long-distance transportation projects. The three-layer structure (fusion-bonded epoxy powder, adhesive layer, and polyethylene outer sleeve) provides superior corrosion resistance, mechanical protection, and durability. Key application areas include:

1. Oil & Gas Transportation

• Long-distance pipelines: Used for high-pressure transportation of crude oil, natural gas, and refined petroleum products, resistant to soil corrosion and chemical erosion.

• Offshore engineering: Suitable for subsea pipelines, withstanding saltwater spray and high humidity to extend service life.

2. Urban Pipeline Networks

• Gas pipelines: Excellent anti-permeability ensures safe gas delivery.

• Water supply systems: Prevents water contamination, ideal for municipal drinking water and sewage pipelines.

3. Chemical & Industrial Applications

• Chemical fluid transportation: Resistant to acids, alkalis, salts, and other corrosive media, widely used in chemical plants and refineries.

• Slurry pipelines: Exceptional abrasion resistance for mining and mineral slurry transport.

4. Harsh Environments

• Extreme cold/hot regions: The PE layer performs stably in temperatures ranging from -40°C to 80°C.

• Saline-alkali/swamp areas: Triple-layer protection effectively resists electrochemical and microbial corrosion.

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Blasting machinery

steel pipe conveyor

FBE Coating machinery

PE/PP layer wrap extruder line

1. company profile

Qingdao Huashida Machinery Co., Ltd. is located in Qingdao High & New Technology Industrial Area- Qingdao Huashida industrial Park, covers an area of about 4000 square meters. We have tens of years experience in plastic pipe, sheet, and board extrusion lines, and pipe joints and welding tools such as heat shrinkable sleeve, Electro fusion sleeve etc.

2. main products

Our main products include as following,HDPE PU pre-insulation Jacket Pipe extrusion line,3PE steel pipe anticorrosion&coating machinery,Rubber&plastic foam flexible insulation tube/sheet production line,HDPE water supplying pipe extrusion line,PE PP sheet board extrusion line,Heat shrinkable sleeve production line,Hollow wall spiral pipe production line,Plastic welding rod extrusion line,Radiation cross-linked PE heat shrinkable sleeve,Electro fusion tape,Portable extrusion welder.

Our machines make products what are widely used as jacket pipe of PU foam insulation pipe in municipal heating pipe system; Municipal water supplying and drainage pipeline; Oil and gas pipeline; Pipe joints of plastic drainage water pipes, PU foam insulation pipelines, 2PE/3PE oil and gas pipelines;
Besides manufacturing machines, we also make Heat shrinkable sleeves and electro fusion sleeves and plastic welders, which are widely used as pipe joints and sealings of plastic drainage water pipes, PU foam insulation pipelines, 2PE/3PE oil and gas pipelines;

4. Our certificates and Patents

5. Global market
Our purpose is to supply highest cost-effective products and the most suitable solutions to our clients, as well as intimate help and service, on this basis we reach a win-win situation.
For over 14years We have exported to many foreign countries, such as Russia, Iran, Turkey, U. A. E, Sudan, Ukraine, Uzbekistan, Azerbaijan, South Asia, Poland etc.

6. Core Team

The guarantee period is 12 months from the date of installing, but no more than 14 months from the date of delivery. After this period we are obliged to provide with lifelong service at the expense of Buyer.During the warranty period we are responsible to provide trouble shootings and help the customer to solve the problems, provide spare parts which are broken, except breakings caused by the Buyer.We will provide the technical service train the workers from the buyers for free.We can also send technicians to the buyer's companies abroad for help installation and testing the lines. But the buyer shall pay for the round trip tickets, accommodation, transportation, medicine treatment and insurance of the technicians in foreign countries and some salary accordingly.