API 3LPE anti-corrosion steel pipe refers to the anti-corrosion steel pipe with a three-layer structure applied sequentially on the steel pipe surface: Fusion-Bonded Epoxy (FBE), Adhesive (AD), and Polyethylene (PE), abbreviated as 3PE anti-corrosion steel pipe. Among them, the FBE layer typically has a thickness of 200-300μm, offering excellent electrical insulation and chemical stability; the intermediate AD layer serves as a bonding layer with a thickness generally ranging from 150-250μm, primarily functioning to firmly bond the FBE layer with the PE layer; the outer PE layer usually has a thickness of 2-5mm, providing good weather resistance and mechanical protection capabilities. The three-layer structure works together through chemical bonding and physical adhesion to form a stable anti-corrosion system, enabling the steel pipe to effectively resist corrosion medium erosion in complex environments.
Specification
Product Name: 3LPE Coated Pipe, 3PE Coating Pipe, Anti Corrosion Steel Pipe
Coating Type: 3 Layer Polyethylene
OD: 25 mm to 3000 mm
WT: SCH5S to SCH160, XXS
Length: Up to 12m
Connection: Weld And Thread
Standard: ANSI, JIS, DIN, EN, ISO,DIN;CAN/CSA,NFA
|
Nominal Diameter of Steel Pipe(DN) |
Epoxy Coating |
Adhesive Layer |
Min Thickness of Anti-Corrosion Layer (mm) |
|
|
(mm) |
(a/μm) |
(mm)/um |
General Type |
Strengthen Type |
|
DN≤100 |
≥120 |
≥170 |
1.8 |
2.5 |
|
100 |
/ |
/ |
2 |
2.7 |
|
250 |
/ |
/ |
2.2 |
2.9 |
|
500≤DN<800 |
/ |
/ |
2.5 |
3.2 |
|
DN≥800 |
/ |
/ |
3 |
3.7 |
Process
