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{"title":"Customize 4-48 Inches 3PE Pipe Anti Rust Spraying Coating System","imgUrl":"https:\/\/img.chinax.com\/nimg\/aa\/e9\/9c3c111c6d8b4a409c04970f1e18-200x200-1\/customize_4_48_inches_3pe_pipe_anti_rust_spraying_coating_system.jpg","attrs":{"Brand Name":"Huashida","Certification":"CE, Rohs\uff0cTUV","Place of Origin":"China","Minimum Order Quantity":"1"}}
3LPE Anti-Corrosion Steel Pipe Production Line Manufacturer
Product Overview
The 3LPE (Three-Layer Polyethylene) system is a multi-layered coating designed to provide industry-leading corrosion resistance and mechanical durability for buried steel pipelines.
The 3-Layer Structure
First Layer (Inner): Fusion-Bonded Epoxy (FBE). Provides a strong chemical bond to the steel and serves as the primary defense against corrosion.
Second Layer (Middle): Copolymer Adhesive. Acts as the "glue" that chemically bonds the epoxy layer to the outer polyethylene.
Third Layer (Outer): High-Density Polyethylene (HDPE). Provides rugged mechanical protection against impact, moisture, and environmental stress.
Key Advantages
Extended Service Life: Designed to last 30-50 years, even in harsh environments.
Superior Durability: High resistance to low-temperature impacts and mechanical damage.
Exceptional Adhesion: Combines the high strength of epoxy with the low water absorption of PE.
Efficiency: Minimizes energy loss and maintenance costs due to its excellent sealing performance.
Technical Specifications
Parameter
Range/Requirement
Pipe Diameter Range
50 - 4200 mm
Production Capacity
≥ 250 m²/h
Surface Cleaning Level
≥ Sa 2.5 (High-level grit blasting)
Primary Materials
Epoxy powder, Copolymer adhesive, Polyethylene
Application Fields
The 3LPE coating line is essential for infrastructure projects, including:
Energy: Long-distance oil and gas transportation and urban gas networks.
Utilities: Municipal water supply systems.
Industrial: Specialized fluid pipelines for chemical and manufacturing sectors.
Production Line: Main Equipment List
The manufacturing process is divided into four critical stages:
A. Derusting Equipment
Essential for preparing the steel surface to ensure maximum adhesion.
SJ-Series Extruders and molds for the adhesive and PE sheet application.
C. Handling & Cooling
Loading, downloading, and storage platforms.
Cooling Spray equipment to set the coating.
D. Finishing & Control
PE Beveling Machines for pipe-end finishing.
Integrated PLC automatic control systems for the entire line.
About Qingdao Huashida Machinery Co., LTD
With 23 years of experience, Qingdao Huashida Machinery is a global leader in plastic pipe and anti-corrosion technology. We have served over 400 overseas customers across regions like Central Asia, the Middle East, and Africa.
Our Main Products
HDPE jacket pipe for pre-insulated pipe Production Line (110-2000mm)
Rigid pre-insulated pipe Production Line
Flexible pre-insulated pipe (PERT) production line
Steel pipe FBE/2LPE/3LPE anti-corrosion coating line
Steel pipe derusting line
PE pressure pipe/Water Gas supply pipe production line
PP/PE plastic board/sheet/geomembrane production line
NBR PVC Thermal insulation tube/plate production line
Pipeline anti-corrosion materials and instruments: heat shrink joint coating sleeve, electro-fusion weldable joint sleeve, portable welding gun (extruder), PE PP welding rod.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
3000000-5000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
1. company profileQingdao 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 a...
1. company profileQingdao 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 a...
