Our Coated Pipes are produced using high-quality steel grades and are available in various dimensions. The surface of each carbon pipe is meticulously coated, enhancing its durability and resistance to corrosion.
Coated steel pipe undergo rigorous machining for a flawless finish and are widely used in industries like oil and gas, water supply, and construction.
| Procedure | Coated Pipe |
|---|---|
| Dimensions | 10.3mm and up |
| 1/8″ and up | |
| DN6 and up | |
| Thickness | 1.65mm and up |
| SCH 5S ~SCH XXS | |
| Unit Length | 6 meters, 12 meters, or customized. |
| Standards | API 5L |
| API 5CT | |
| ASTM A53 | |
| ASTM A795 | |
| JIS G 3422 | |
| DIN 30670 | |
| DIN 30671 | |
| DIN 30678 | |
| CAN/CSA-Z245.21 | |
| NFA 49-710 | |
| ISO DIS21809-1 | |
| Surface Coating | Varnishing, Oiling, Hot Dip Galvanizing |
| FBE, 2PP, 3PP, 2PE, 3PE | |
| End Type | Plain, Bevelled, Threaded, Grooved |
| Joint Method | Fitting, Flange, Coupling, Clamp, Pipe Shoulder, Welding |
| Pipe Machining | Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding |
| Application | Oil & Gas, Water Transmission, Solar Energy, Fire Fighting, Construction, Piling Work, Mechanical Engineering, Fabrication |
“FBE Coated Pipe” is a special form of “Epoxy Coated Pipe” that uses a melt-bonding method, Fusion-Bonded Epoxy (FBE), to ensure a strong and durable coating.
The Fusion Bonded Epoxy (FBE) coating prevents corrosion on pipe surfaces. Double or triple layers of FBE may even improve friction and abrasion resistance. In 3-layer PE/PP coating systems, FBE coating is also employed as the priming layer.
At temperatures ranging from 220 to 235°C, the electrostatic epoxy powder is sprayed onto a pipe. When the epoxy powder reaches the hot pipe surface, it melts and forms a uniform layer of epoxy coating on the pipe.
Dual-layer FBE is used for a variety of service applications, including directional drilling, anti-abrasion for road and river crossings, and oil, gas, and waterworks pipes. This coating, like single layer FBE (above), can be applied on a wide range of outer diameter (OD) sizes, from 3.5″ to 48″. In most situations, the top layer of abrasion resistance protects against erosion.
Two-layer extruded polyethylene coating (2LPE) refers to two layers of pipeline protection. Mastic-based adhesives and polyethylene copolymers are used in the two-layer construction. This provides excellent corrosion prevention, especially at high temperatures.
The 2LPP System is a multi-layer powder coating system made up of two functional components. This anti-corrosion system is made up of a layer of polypropylene followed by a coating of high-performance fusion-bonded epoxy (FBE).
To solve the disadvantages of each anti-corrosive procedure, the three-layer polyethylene (3PE) anti-corrosive coating combines the properties of epoxy powder FBE and two-layer PE coating. The principal anti-corrosive agent is FBE. PE primarily protects FBE (mechanical damage resistance) and has excellent water penetration resistance. The three-layer polyethylene coating method provides outstanding mechanical qualities to satisfy the coating material’s properties, and the coating can operate at temperatures as high as 50°C (low density and medium density POLYETHYLENE) or 70°C (high-density POLYETHYLENE) (high-density polyethylene).
A bottom layer of epoxy powder, an intermediate layer of binder, and an outside LAYER of PP (polypropylene) jacket comprise the three-layer polypropylene (3PP) anti-corrosive coating. The 3PP incorporates all of the benefits of the 3PE while significantly improving its temperature performance in service. 3PP coating is mostly utilized as an anti-corrosion pipeline for transporting high-temperature media and as a pipeline anti-corrosion layer in desert locations with high surface temperatures and lengthy sunshine duration. As a result, subterranean water, gas, and oil pipelines have become increasingly popular in places with high surface temperatures and long daylight duration.
Internal pipe coating is the process of applying specific paints to the internal surfaces of pipes. This coating forms a protective layer on the inside of the pipe and can serve a variety of purposes such as corrosion protection, friction reduction, and improved fluid transfer efficiency, among others.
The internal coating of pipelines usually needs to consider factors such as chemical resistance, corrosion resistance, adhesion and influence on the transported substances of the coating. These coatings can be applied to the internal surface of pipes by different methods such as spraying, brushing, coating, pouring, etc.
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Coated pipelines for the oil and gas industry can be located all over the world. Pipelines can be installed above ground, underground, or immersed in fresh or saltwater. External pipeline coatings must be built to resist such a wide range of climatic conditions. Soil stress, soil-borne pollutants, and saltwater all pose significant difficulties to the performance of external pipeline coatings. External coatings must also be resistant to indigenous bacteria, other flora, wastewater, and the chemicals and solvents used in hydrocarbon processing. Pipelines can be found in the hot desert, where temperatures frequently surpass 100°F, and in Alaska, where temperatures can drop below -76°F. Subsurface conditions in permafrost zones, where ground temperatures rarely surpass 32°F, make subterranean pipe construction challenging and virtually always necessitate above-ground pipeline installations.
The Process of Inernal Coated Pipe
The Process of Exernal Coated Pipe
Pipeline coating is critical to the design and durability of any pipeline. The coating protects the pipe from extremes in temperature, chemicals, pressure, abrasion and other harsh conditions. Pipeline coating can be done on both internal and external surfaces of the pipe using a variety of materials that range from soft metallic compounds to rigid thermoplastics. It also can serve as an outer layer for externally laid pipelines on land or in water.
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