Natural gas pipeline 3pe anti-corrosion steel pipe manufacturers
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 443 m²
- Supply Capability:
- 56655 m²/month
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3 PE anticorrosive pipe
The 3PE epoxy powder composite steel pipe (also known as TPEP anti-corrosion pipe) is an upgrade product on the basis of the epoxy composite steel pipe in the outer polyethylene, which is the most advanced anti-corrosion form of buried long distance pipeline at present. The self-developed fourth-generation large-diameter pipeline's new anti-corrosion outer wall adopts thermal fusion and winding process to form a three-layer structure anti-corrosion layer with the bottom epoxy resin, the middle adhesive and the outer polyethylene. The inner wall adopts thermal spraying epoxy powder for anti-corrosion, and the powder is evenly coated on the surface of the pipe body after being heated and melted at high temperature. At the same time, it has high strength of epoxy, low water absorption of PE and good softness of hot melt adhesive, with high anti-corrosion reliability.
1 at the end of glue. Before extruding the polyethylene coating, a sealing rubber layer should be applied to the pipe surface. The performance index of base gum is based on the hot melt adhesive of asphalt type used before. National standards on the base of the softening point, heating loss, needle penetration, thermal decomposition temperature, self-repair, shear strength, peel strength, and so on. However, it is proved that the adhesive still has many disadvantages, such as low temperature resistance and poor bonding performance. Some foreign people use butyl glue and the latest resin glue, and domestic base glue is one of the key research topics.
2 polyethylene. The density of polyethylene can range from 0, 91 to 0, 96g /c. The performance is different because of the different densities. Since there is no short bifurcation in high density polyethylene, its junction bii, degree, secondary strength, fracture rate, tear strength, drug resistance is much better than low density polyethylene, which can produce corrosion coatings with different properties and different prices according to the needs of users. High density polyethylene coated pipe (Huang Jiake) the applicable temperature below so ℃, bottom density polyethylene coated pipe (green jacket) the applicable temperature below 60 ℃.
3. Production method. Polyethylene anticorrosive coating used flow dipping process and powder dispersing and melting process, etc. Recently, the production method is basically extrusion method. Bibian of small diameter (15-800mm) is the adhesive circular mould method (with protective layer), and bibian of human diameter (400-1600mm) is the tight t-mould method (no protective layer, single layer). Recently, the use of close - fitting method on small and medium diameter pipe is increasing gradually. In the future, this method may be widely used on anti-corrosion steel pipe
- Q:How are steel pipes cleaned and flushed?
- Depending on specific requirements and conditions, different methods can be used to clean and flush steel pipes. One way to achieve this is through mechanical cleaning, which involves physically removing debris, rust, or scale from the inner surface of the pipes using wire brushes, scrapers, or other abrasive tools. This method is effective in removing loose or easily detachable contaminants. Chemical cleaning is another commonly used method, especially for pipes with stubborn deposits or rust. Various chemicals or cleaning agents are flushed through the pipes to dissolve or loosen the buildup, which can then be washed away. Acid-based solutions are often used for this purpose, but it's crucial to select the appropriate chemical and concentration to prevent pipe damage. High-pressure water jetting is an effective technique for cleaning and flushing steel pipes. Water is pumped at high pressure through a nozzle, generating a powerful jet that dislodges and removes debris or deposits from the pipe walls. This method is particularly useful for eliminating hard or compacted materials that are difficult to remove by other means. In some cases, a combination of these methods may be necessary to achieve the desired cleanliness. For example, mechanical tools can be used for pre-cleaning, followed by chemical cleaning or high-pressure water jetting to ensure thorough flushing and contaminant removal. Regular maintenance and cleaning of steel pipes are crucial to maintain efficiency and prevent corrosion. It's important to adhere to proper procedures and safety guidelines when cleaning and flushing steel pipes to achieve effective results and prevent any damage to the pipes.
- Q:What is the difference between internal and external coating of steel pipes?
- The main difference between internal and external coating of steel pipes lies in the purpose and location of the coatings. The internal coating is applied on the inner surface of the steel pipe to protect it from corrosion and ensure smooth flow of the contents within the pipe. It is commonly used to prevent contamination of the transported liquid or gas and to extend the lifespan of the pipe. On the other hand, the external coating is applied on the outer surface of the steel pipe to protect it from environmental factors such as moisture, chemicals, and physical damage. It helps to prevent corrosion and maintain the structural integrity of the pipe, especially in harsh conditions. Overall, while the internal coating focuses on the functionality and preservation of the transported contents, the external coating primarily aims at safeguarding the pipe itself from external influences.
- Q:Are steel pipes suitable for fire protection systems?
- Yes, steel pipes are suitable for fire protection systems. They are widely used due to their durability, strength, and resistance to high temperatures. Steel pipes can efficiently transport water or fire suppressants to extinguish fires effectively, making them a reliable choice for fire protection installations in various buildings and industrial settings.
- Q:How are steel pipes used in LNG terminals?
- Steel pipes are used in LNG terminals for the transportation of liquefied natural gas from storage tanks to various processing units within the terminal. These pipes are designed to withstand the extreme cold temperatures and high pressure of LNG, ensuring safe and efficient transfer of the gas. Additionally, steel pipes are also used for the distribution of LNG to various end-users, such as power plants or industrial facilities, providing a reliable and robust infrastructure for the delivery of this valuable energy source.
- Q:Can steel pipes be used for underground sewer lines?
- Yes, steel pipes can be used for underground sewer lines. Steel pipes are commonly used in sewer systems due to their strength, durability, and resistance to corrosion. They are able to withstand the weight of soil and other external pressures, making them suitable for underground applications. Additionally, steel pipes have a long lifespan and can effectively transport wastewater and sewage for many years. However, it is important to ensure that the steel pipes are properly coated or lined to prevent corrosion and extend their lifespan even further.
- Q:How are steel pipes inspected for defects?
- Steel pipes are inspected for defects using various methods, including visual inspection, ultrasonic testing, magnetic particle inspection, dye penetrant testing, and radiographic examination. These techniques help identify any cracks, corrosion, or other defects in the pipes to ensure their structural integrity and prevent any potential hazards or failures.
- Q:What are the different types of steel pipe supports?
- There are several different types of steel pipe supports, including pipe hangers, pipe clamps, pipe shoes, and pipe saddles. These supports are used to secure and stabilize pipes in various applications, such as plumbing, HVAC systems, and industrial piping systems.
- Q:How are steel pipes used in natural gas processing plants?
- Steel pipes are used extensively in natural gas processing plants for various purposes, including the transportation of natural gas, the transfer of various fluids, and the construction of pipelines and infrastructure. These pipes are highly durable, resistant to corrosion, and can withstand high pressure, making them ideal for safely transporting natural gas and other substances throughout the facility.
- Q:How are steel pipes used in the petrochemical industry?
- Steel pipes are commonly used in the petrochemical industry for various purposes such as transporting and distributing fluids and gases, as well as providing structural support for equipment. They are particularly preferred due to their high strength, durability, and resistance to corrosion, making them suitable for handling harsh and corrosive substances.
- Q:How do you determine the weight per foot of a steel pipe?
- To determine the weight per foot of a steel pipe, you need to consider two main factors: the thickness and the diameter of the pipe. First, you need to measure the outer diameter (OD) and the wall thickness (WT) of the pipe using a caliper or a measuring tape. Once you have these measurements, you can calculate the inner diameter (ID) by subtracting twice the wall thickness from the outer diameter (ID = OD - 2 * WT). Next, use the formula for the cross-sectional area of a pipe (A = π * (OD^2 - ID^2) / 4) to calculate the cross-sectional area. Finally, multiply the cross-sectional area by the density of the steel, which is typically around 490 pounds per cubic foot, to determine the weight per foot of the steel pipe. Weight per foot (WPF) = A * 490 It's important to note that this calculation provides an estimate of the weight per foot, as manufacturing tolerances and slight variations in the density of the steel may affect the actual weight. Therefore, it is recommended to use this calculation as a guide and consult the manufacturer's specifications for more precise information.
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Natural gas pipeline 3pe anti-corrosion steel pipe manufacturers
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 443 m²
- Supply Capability:
- 56655 m²/month
OKorder Service Pledge
OKorder Financial Service
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