3PE Pipe Anti-Corrosion Production Lines & Equipment
The structure of 3-layer PE coating (3PE)
3-layer PE anticorrosion coating consists of three layers:
1. FBE (Fusion bonded epoxy) coating, FBE>100um
2. Adhesive layer, 170~250um
3. Polyethylene layer, 1.8~3.7mm
Advantages of 3-layer PE coating
The three-layer polyethylene anti corrosion coating combines the excellent properties of epoxy coating and extruded polyethylene layer: the interface characteristics and chemical resistance of epoxy coating and the mechanical protection characteristics of extruded polyethylene layer. Therefore, it is very superior as the outer protective layer of buried pipelines. After rigorous scientific testing, the three-layer PE coating can make the life of the buried pipeline reach 50 years. At present, it is recognized as an efficient external pipeline anti corrosion technology in the world.
Steel pipe with 3-layer PE coating (3PE) is widely used in pipeline systems for the transmission of oil, gas, water and other fluids. They have high resistance to corrosive from chemicals, moisture, harmful environment etc.
3-layer PE coating working process
Upload pipes→screw conveyor→rust removal → intermediate frequency heating→Epoxy powder coating→Adhesive & polyethylene coating→cooling spray→pipes screw conveyor→Pipe end beveling→unload pipes
Technical Specifications
| Parameter | Specification |
| Coating Thickness | 1.8–4.0mm (adjustable) |
| Line Speed | 0.5–3 m/min (variable) |
| Operating Temp. | Epoxy: 200–240°C / PE: 180–220°C |
| Standards | ISO 21809-1, API RP 5L2, DIN 30670 |
Advantages of equipment
✔ Complete Turnkey Solution – From surface treatment to final inspection
✔ Multi-Layer Protection – Epoxy + Adhesive + Polyethylene for maximum durability
✔ Wide Pipe Compatibility – Covers Ø50mm–Ø2000mm (customizable)
✔ Energy-Efficient Design – 20-30% lower power consumption vs conventional lines
✔ Smart Control System – PLC/HMI with real-time monitoring and data logging
Company Profile
Qingdao Huashida Machinery Co., LTD, is a manufacturer of series of plastic pipe machines, municipal pipe machines, pipe insulation&anticorrosion machines, and pipe jointing&anticorrosion materials, with 21 years of production experience.
Our main products are:
1. HDPE jacket pipe for pre-insulated pipe Production Line (110-2000mm)
2. Rigid pre-insulated pipe Production Line
3. Flexible pre-insulated pipe(PERT) production line
4. Steel pipe FBE/2LPE/3LPE anti-corrosion coating line
5. Steel pipe derusting line
6. PE pressure pipe/Water Gas supply pipe production line
6. PP/PE plastic board/sheet/geomembrane production line
7. NBR PVC Thermal insulation tube/plate production line
8.Pipeline anti-corrosion materials and instruments: heat shrink joint coating sleeve, electro-fusion weldable joint sleeve, portable welding gun(extruder), PE PP welding rod.
We have been working with more than 400 overseas customers and exporting our products to Kazakhstan, Uzbekistan, Iran, Turkey, Russia, Nigeria and other countries.
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3PE Pipe Anti-Corrosion Production Lines Equipment Images
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