3LPE/3LPP Triple-Layer External Anti-Corrosion Coating System

The 3PE anti-corrosion coating processing line is engineered to apply a durable three-layer protective coating to steel pipes of various specifications, ensuring long-lasting corrosion resistance and reliable performance in demanding environments.

The system applies the coating in three sequential layers:

• Fusion Bonded Epoxy (FBE) - Provides superior adhesion and exceptional corrosion protection

• Adhesive Layer - Ensures strong bonding between the FBE and outer polyethylene layer

• Polyethylene (PE) Outer Layer - Offers robust mechanical protection and thermal insulation

This integrated coating solution is ideal for applications in oil, gas, water, and infrastructure projects where pipeline longevity and safety are critical.


3PE significantly enhances the pipeline's mechanical integrity, electrical insulation, waterproofing, abrasion resistance, and anti-aging properties.
3PE coating/coated steel pipes are extensively utilized in pipeline systems for transporting oil, gas, water and other fluids. They exhibit remarkable resistance against chemicals, moisture, and challenging environmental conditions etc.

Production Process Flow

Pipe loading → Screw conveyor feeding → Surface rust removal & cleaning → Intermediate frequency preheating → FBE electrostatic powder spraying → Outer adhesive & polyethylene coating → Water spray cooling → Screw conveyor transfer → Pipe end grinding & finishing → Finished pipe unloading
Main Equipment of 3PE anticorrosion processing
Configuration List

Our factory


Our team

Delivery

Exhibition

Question & Answer:
Q1. What is the range of pipe diameter the equipment can produce?
A: Diameter of steel Pipe: 48-219mm,219-1220mm,800-1600mm,1000-2400mm
Q2. What is the sand blasting grade?
A:SA2.5
Q3. What is your anti-corrosion coating standard?
A: This advanced coating system surpasses expectations by adhering to the stringent standards of SY/T0413-2002, GB/T23257-2009, and Germany's DIN 30670 and DIN 30678. Additionally, it meets the high benchmarks set by the American Corrosion Association and DNV. Every pipe coated with this system is in full compliance with the technical standards SY/T0315-2005, CNPC38-2002 for double-layer fusion-bonded epoxy powder coatings on buried steel pipes, aligning perfectly with Canadian and American Corrosion Association standards, ensuring unparalleled durability and reliability.
Q4. What is Delivery Time?
A: Anticipate swift delivery within 2-3 months after deposit, enabling your project to proceed without delay.
Q5. Production output
A: Our system handles diverse output capabilities based on pipe diameters, achieving an impressive maximum daily output of 3 to 8 km and boasting an annual processing capacity of a staggering 2 million square meters (Φ508 mm).
Q6. Coating thickness:
A: With precision, the coating thickness ranges from a delicate 80 to a robust 800 micrometers, ensuring customized protection for every application.
Q7. To which country did you sell your 3PE equipment?
A. We have proudly manufactured and delivered nearly 50 sets of 3PE processing lines globally. Our equipment enhances infrastructure in countries such as Russia, Iran, UAE, India, Belarus, Kazakhstan, and many more, showcasing our international reach and expertise.
Q8. After-sales service:
A: Warranty period:
Before delivery, every piece of equipment must be thoroughly trial-operated to ensure impeccable performance and full compliance with specifications.
The warranty period is a comprehensive 12 months from the date of pick-up for the mechanical part and 6 months for the electrical part, offering peace of mind and reliability.
Service:
Our commitment to excellence extends to technical services, including comprehensive training and guidance for your operators, ensuring seamless integration and operation of our equipment.

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.