3PE anti-corrosion welded steel pipe

3PE anticorrosive pipe corrosion of oil pipelines from the inside to the outer three layers of tissue corrosion protection Layer 1: the task of steel pipe layer in accordance with the attempt and customer begging 1 general use of seamless pipe (GB eight 163-78) spiral pipe (GB9711- Eight 8; SY / T503 eight -92) and longitudinal welded pipe (GB3092-93). Steel pipe rust treatment process through the ancestors, the steel pipe rust up to GB eight 923-1988 standard Sa2 level, the outside of the precision up to GB6060.5-eight eight standard R = 12.5 Micron. Pipeline anti-corrosion Layer 2: 3PE anti-corrosion layer with a low-pressure foam machine in the outer layer of the steel pipe between the cavity formed by the rigid injection of rigid 3PE foam liquid made. That is commonly known as "tube tube foam process." Its infection 1 is waterproof, 2 is anti-corrosion, the third is to support the heat net weight. When the transmission medium temperature: -50 ℃ -120 ℃, the selection of rigid polyurethane foam anti-corrosion coating. 3PE anti-corrosion steel pipe so listen to high polyether polyol compound and a lot of polyisocyanates for the chemical reaction by the foam material. Pipe anti-corrosion The third layer: high-density polyethylene layer prefabricated into a predetermined wall thickness of the color (yellow) plastic pipe, the infection is cherished 3PE anti-corrosion coating from stranded hard objects, 2 is anti-corrosion waterproof. 3PE corrosion of steel use, cut when transported in the range of -50 ℃ -150 ℃ medium various anti-corrosion cold engineering.
 
3PE anti-corrosion welded steel pipe
Oil pipeline 3PE anti-corrosion steel pipe advantages:


1, long service life Polyethylene pipe has the highest molecular weight, with good stability and anti-aging properties, under normal operating temperature and pressure conditions, the service life can be guaranteed for more than 50 years.
2, corrosion resistance Polyethylene molecular structure of high stability, resistance to natural gas, liquefied petroleum gas, artificial gas and other chemical corrosion, without secondary corrosion protection equipment. The chemicals present in the soil do not cause any degradation of the tubing.
3, good flexibility Polyethylene pipe is - kind of high toughness of the pipe, the elongation at break of more than 500%. The flexibility of polyethylene pipe makes it easy to bend. Engineering can be by changing the direction of the pipeline to bypass the obstacles, in many cases, the flexibility of the pipe can reduce the pipe fittings and reduce installation costs.
4, with excellent impact resistance, seismic resistance Polyethylene low temperature embrittlement temperature is very low, can be -60 ℃ ~ 60 ℃ temperature range of safe use, uneven subsidence of the pipe base has a very strong adaptability. Winter construction, due to the material impact resistance, will not happen brittle pipe.
5, good wear resistance test shows that the wear resistance of polyethylene pipe is 4 times the pipe, especially in the field of mud transport, compared with the steel pipe, polyethylene pipe has better wear resistance.
6, flow resistance Small polyethylene pipe has a smooth inner surface, the Manning coefficient of 0.009. The smooth inner surface and non-stick properties ensure that polyethylene pipes deliver higher delivery capacity than traditional pipes while reducing pressure loss and energy consumption in pipelines.
7, good environmental performance Polyethylene pipe in the processing does not add heavy metal stabilizer, non-toxic materials, is a green pipe material, and polyethylene material itself can be recycled, will not cause pollution to the environment.
8, good flame retardant, anti-static performance Our company has developed a special flame retardant, anti-static polyethylene pipe for flammable and other specific places.
9, safe and reliable connection Polyethylene pipe is mainly used in hot-melt or fused connections, essentially maintaining the interface material, structure and the identity of the body itself to achieve the integration of pipe and pipe, which can effectively resist the internal pressure generated The circumferential stress and the axial pull-stress, no leakage, worry about leaks.
10, light weight, easy handling, easy construction Polyethylene pipe is only the proportion of steel pipe 1/8, easy to handle, easy to bend, the welding process is simple and rapid, low overall cost of the project, with significant economic benefits.
3PE anti-corrosion welded steel pipe
3PE anti-corrosion steel pipe applications are as follows:
Sewage treatment: sewage treatment discharge pipe, sewage pipes and biological ponds anti-corrosion project.
Agriculture: agricultural irrigation pipe, deep well pipe, drainage pipes and other networks.
Coal Mine: Suitable for coal mine water supply and drainage, downhole shotcrete, positive and negative pressure ventilation, drainage gas, fire sprinkler pipe network.
Power plant: thermal power plant process waste water, return pipelines.
Fire protection: For sprinkler, sprinkler water supply pipe system has excellent applicability.
Highway: power, communications, highways and other cable protection casing.
Municipal Engineering: For high-rise building water supply, heating network heating, water projects, gas transmission, buried pipelines and other water transport.