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Internal epoxy and external 3PE coated composite steel pipe
The three-layer polyethylene anti-corrosion steel pipe combines the advantages of fused epoxy powder and polyolefin coating, overcomes the lack of performance of the two coatings when used alone, and is coated to the surface of the steel pipe by spraying, winding and other processes to achieve the purpose of anti-corrosion.

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Heavy anti-corrosion steel pipe——Internal epoxy and external 3PE coated composite steel pipe

The 3pe anti-corrosion layer(three-layer extruded polyethylene anti-corrosion layer,TPEP)on the outer surface of the steel pipe is made of fused epoxy powder(FBE) as the bottom layer,adhesive as the middle layer,and extrued polyethylene as the outer crover.It is an emerging product that solves the promble of the corrosion prevention of the inner wall of 3PE anti-corrosion steel pipes.It fills the gap of anti-corrosion of domestioc anti-corrosion steel pipes in the field of water transportion.The inner and outer epoxy resin 3PE anti-corrosion steel pipes are currently the best choice in the field of water supply pipes.


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Product advantage

1.Light Weight

Compared with the same specification of the steel pipe, the weight of the steel pipe saves 50% -150%,the pipe weight is light, reduce the construction labor intensity
2.Corrosion preventive
Fused epoxy powder coating, hot dip zinc and stainless steel, diversified selection can ensure the service life of the pipe.
3.Negative pressure resistance
To meet the negative pressure performance requirements of the pipe for gas drainage, under-0.097MPa pressure, 100h pipe without suction, deformation.
4.Low operating noise
The inner wall of the pipe is a flat wall structure, with the inner wall smooth and low noise during normal operation.
5.Strong adhesion
The selection of anti-corrosion materials are the national standard mature technology type, the use of the process does not fall off, peeling phenomenon.


Product Application

1.Oil and gas industry: 

   Pipelines used to transport oil, natural gas and related products can effectively resist corrosion, ensure long-term stable operation of pipelines, and reduce the risk of leakage.

2.Urban water supply and drainage systems:

   It can ensure that water quality is not polluted, while resisting the erosion of the underground environment and extending the service life of pipelines.

3.Chemical industry: 

   Transporting various chemical media, due to its good chemical corrosion resistance, it can prevent pipelines from being corroded by chemicals.

4.Marine engineering: 

   In the marine environment, the double-layer epoxy coating can provide excellent anti-corrosion protection and adapt to the high corrosiveness of seawater.


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