3PE External Coated + Epoxy Internal Coated Pipe

3PE External coated + Epoxy internal Coated Pipe

• Standard: ASTM A672 B60 CL 22
• Size: DN50-DN2200
• Coating Layer:

    Layer 1 Epoxy Powder ≥80um

    Layer 2 Adhesive :170-250um

    Layer 3 Polyethylene : 1.8-3.7mm

3PE coated pipe,alos called 3LPE pipe coated with Epoxy inside, adhesive layer middle, and outside with polyethylene layer. 3LPE will be only used for pipe external coating 3LPE.

3LPE/FBE coated pipe application

3PE/3LPE coated pipe and FBE Epoxy coating/coated steel pipe are widely used in pipeline systems for the transmission of oil, gas, water and other fluids. They have highly resistance to corrosive from chemicals, moisture, harmful environment etc.

The 3PE coated steel pipe is with 3 layer coatings:

3PE coating pipe is short for "three layers structure polyethylene anticorrosion coating steel pipe". 3PE can strengthen the pipeline's mechanical properties, high electrical resistance, waterproof, wearable, anti-aging.
It could protect pipe from the heat loss which only account for 1/4 of pipe.

There are three layers in this pipe coating structure:

· The first one: Epoxy layer (Thickness > 100um)

· The second one: Adhesive layer (Thickness: 170um~250um)

· The third one: Polyethylene layer (Thickness: 1.8~3.7mm)

1.Epoxy primer coating.The first layer with epoxy powder (FBE> 100um). Directly coated at the pipe surface. Ensure the overall coating has good adhesion at higher temperatures.

2.Copolymer adhesive. Mian component for this layer is a polyolefin. The thickness of the adhesive ranges from 170um to 250um.To make sure the top anti-corrosion coating is adhesives at the primer coating and also the pipe surface.

3.Anti-corrosion Coating (PE layer). The top layer is extruded polyethylene, the thickness of this layer is from 2.5 mm to 3.7 mm. It is polyethylene which has advantages to anti-water, electrical resistance, and anti mechanical damage. It is a very important layer.

What kind of pipes could be coated with 3PE or FBE

Coating standard:

ANSI/AWWA C104/A21.4 American National Standard for Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for Water

ISO 21809 Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems

DIN 30670 Polyethylen coatings of steel pipes and fittings

Almost all kind of steel pipes could be coated with FBE or 3LPE. such as

Stainless steel pipe
ASTM A312, ASTM A269 stainless pipe

Carbon steel pipe
API 5L line pipe from Grade B to Grade 80
ASTM A53 pipe (Hot dipped galvanized steel pipe)
ASTM A106 pipe
ASTM A252 pipe
ASTM A134 and A135
ASTM A333

Alloy steel pipe
ASTM A335

Nickel Alloy pipes

CRA clad or lined pipe

Size:

Outer Diamter: 219.1mm - 4064mm (8" - 160")

Wall Thickness: 3.2 mm - 40mm

Length: 6mtr-18mtr

End

square ends (straight cut, saw cut, and torch cut).

beveled for welding, beveled

Surface

Lightly oiled,

Hot dip galvanized,

Electro galvanized,

Black,

Bare,

Varnish coating

Anti rust oil, Protective Coatings

(Coal Tar Epoxy,? Fusion Bond Epoxy, 3-layers PE)

What's the Differences between 3PE (3LPE Coated Pipe) and FBE Epoxy Coating Pipe?

Differences between 3PE (3LPE Coated Pipe) and FBE Epoxy Coating Pipe,Here is the answers to be briefly:

FBE pipe is coated with Epoxy Coatings, it could be used for internal and exernal coating, and mostly used pipe internal coating. Specified as Fusion Bonded Epoxy pipe.
3LPE pipe coated with Epoxy inside, adhesive layer middle, and outside with polyethylene layer. 3LPE will be only used for pipe external coating 3LPE.

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