3PE (3LPE Coated Pipe) And FBE Epoxy Coating Pipe

Differences between 3PE (3LPE Coated Pipe) and FBE Epoxy Coating Pipe

When people purchase steel pipe for pipeline systems, always we see the pipe has been asked for a epoxy coating like 3PE (3LPE) or FBE.

So how much do you know about epoxy coated (3LPE/3PE or FBE) pipe? And in which cases it shall be used? How much of the cost the the 3PE, FBE coating layers?

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.

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.

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

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

What is FBE (Fusion Bonded Epoxy) coating steel pipe?

FBE coating pipe is Fusion Bonded Epoxy coating steel pipe. It could be applied for external or internal coating, with heat resin for pipe. With coated a form of dry powder at thickness 400-600 microns on to the heated surface of pipe. Once the FBE coated on the pipe surface, the FBE film provides an extremely hard surface with great adhesion to the pipe surface. The FBE layer in a even form and have good resistance to the chemical reaction.

FBE Epoxy coated pipe Features

The advantage of the FBE coating pipe is convenient to spraying, no pollution, excellent resistance for high-temperature (-40°C to 85°C);
High strength and anti-bending performances;
Strong adhesion, good integrity, anti soil stress and wear.
FBE coated steel pipe usually buried in soil and under water between -40~85°C temperature.

On the other hand, the defect of the FBE pipe is it doesn't have good resistance to mechanical performances and humid conditions.

How many types for the FBE Epoxy coated pipe?

It developed from 1950s, and industrialization in 1960s. FBE pipe have two kinds: One layer and two layers pipe. FBE Dual layers coated pipe is recommended to applied for the offshore pipelines and the pipelines systems that operated in the tough environments, it provides high performances on the impact resistance and flexibility. Offers suitable protection for the coating from the damage during transportation and construction.

While FBE single layer coated pipe is the generally type for the FBE coated pipe. It offers a rough, non-slip surface for a pipeline that need concrete coating. A special fusion bonded epoxy powder mixed with solid epoxy resin and other adhesive material that helped to adhere to pipe surface.

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