• Polyurethane foam insulation steel pipe steel sheath steel insulation steel pipe System 1
  • Polyurethane foam insulation steel pipe steel sheath steel insulation steel pipe System 2
  • Polyurethane foam insulation steel pipe steel sheath steel insulation steel pipe System 3
  • Polyurethane foam insulation steel pipe steel sheath steel insulation steel pipe System 4
  • Polyurethane foam insulation steel pipe steel sheath steel insulation steel pipe System 5
  • Polyurethane foam insulation steel pipe steel sheath steel insulation steel pipe System 6
Polyurethane foam insulation steel pipe steel sheath steel insulation steel pipe

Polyurethane foam insulation steel pipe steel sheath steel insulation steel pipe

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
1000 m.t./month

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Item specifice

Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Technique:
Hot Rolled,Saw
Shape:
Round
Surface Treatment:
Coated,Black
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Thickness:
3-100mm
Length:
6-12m
Net Weight:
1t

    Heat preservation steel pipe is a steel pipe which has been processed by thermal insulation technology and can ensure that the internal temperature and surface temperature of the steel pipe meet or meet the use requirements under the action of different working environments and external media.Heat preservation pipeline is widely used in liquid and gas transmission pipe network, chemical pipeline heat preservation project petroleum, chemical, central heating network, central air conditioning ventilation pipeline, municipal engineering and so on.

   Polyurethane insulation is made of high-density polyethylene outer sleeve (wound glass steel tube, galvanized iron sheet, jacket tube), polyurethane foam insulation layer and inner working steel tube which are successively combined outward through the equipment.Used for indoor and outdoor pipeline, central heating pipeline, central air conditioning pipeline, chemical, pharmaceutical and other industrial pipeline insulation, cooling engineering, oil pipeline engineering, steam transportation pipeline engineering.

Polyurethane foam insulation steel pipe steel sheath steel insulation steel pipe

Our company is a new force established by the pipe industry group founded in the 1980s. Relying on a large number of core technologies accumulated by the group, as well as strict quality control, physical and chemical testing, it carries out professional pipe fitting management in strict accordance with various standards.Products are widely used in petroleum, petrochemical, chemical, thermal power, boiler, four pipelines, fertilizer, aviation nuclear power, metallurgy, shipbuilding, machinery and military fields.

The main products of our company mainly include elbow, elbow, tee, reducing pipe, pipe cap, sharp elbow, flange, socket, forged pipe fittings and difficult pipe fittings.In addition, our company always has alloy steel tubes, seamless steel tubes for high-pressure boilers.Middle and low pressure boiler tube, low temperature steel tube, pipeline steel tube and so on after 10,000 tons.

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Q:Can steel pipes be used for underground gas storage?
Yes, steel pipes can be used for underground gas storage. Steel pipes are commonly used for transporting and storing various types of gases, including natural gas, due to their strength, durability, and resistance to corrosion. They are able to withstand high pressures and can be designed to meet the specific requirements of underground gas storage facilities. Additionally, steel pipes can be coated or lined with materials to further enhance their resistance to corrosion and to prevent any potential leaks. However, it is important to ensure that proper safety measures and regulations are followed during the construction and operation of underground gas storage facilities to prevent any potential risks or hazards.
Q:How are steel pipes protected against corrosion?
Steel pipes are protected against corrosion through various methods such as applying protective coatings, galvanizing, cathodic protection, and using corrosion inhibitors.
Q:What is the fatigue strength of steel pipes?
The fatigue strength of steel pipes refers to the maximum stress level that the pipes can endure without experiencing fatigue failure or damage over a given number of stress cycles. It varies depending on factors such as the steel composition, manufacturing process, pipe dimensions, and environmental conditions.
Q:What is the outer diameter of the steel tube?
The outer diameter refers to the maximum diameter including the thickness of the steel tube, the inner diameter is the length of the hollow part inside, and the outer diameter minus the inside diameter is the thickness of the steel pipe
Q:What is the outer diameter and wall thickness of the welded steel pipe of national standard DN250?
DN (nominal diameter) 250 is generally the industry said 273, welded steel pipe (spiral steel pipe) thickness is generally between 6-8mm, more common.
Q:How do steel pipes resist corrosion?
Steel pipes resist corrosion through various methods, primarily due to the protective properties of the material itself. Firstly, steel contains a small amount of carbon, which creates a thin, invisible layer on the surface of the pipe known as a passive film. This film acts as a barrier, preventing oxygen and moisture from reaching the underlying steel and thus inhibiting corrosion. Additionally, steel pipes are often coated with protective materials such as zinc, epoxy, or polyethylene, which provide an additional layer of defense against corrosion. Regular maintenance and inspections also play a crucial role in preventing corrosion by identifying and addressing any potential vulnerabilities in the pipes.
Q:Can steel pipes be used for underground chemical injection?
Yes, steel pipes can be used for underground chemical injection. Steel pipes are commonly used in various industries for their durability, strength, and resistance to corrosion. When it comes to underground chemical injection, steel pipes offer many advantages. They can withstand high pressure and temperature, making them suitable for transporting and injecting chemicals into the ground. Additionally, steel pipes have excellent chemical resistance, ensuring that they will not react with the injected chemicals and compromise the integrity of the system. However, it is important to select the appropriate grade of steel pipe that is compatible with the specific types of chemicals being injected to ensure optimal performance and longevity. Regular maintenance and inspections should also be carried out to identify any potential corrosion or damage to the pipes, ensuring the safe and efficient operation of the chemical injection system.
Q:What are the standard specifications for steel pipes?
The standard specifications for steel pipes vary depending on the specific application and industry requirements. However, some common standard specifications for steel pipes include dimensions, material composition, strength, and testing procedures. These standards are set by organizations such as the American Society for Testing and Materials (ASTM), the International Organization for Standardization (ISO), and other national or international bodies. It is important to consult the appropriate standard specifications for specific project needs.
Q:How are steel pipes inspected for quality?
Steel pipes are inspected for quality through a rigorous process that involves various techniques and standards. One common method is visual inspection, where trained professionals examine the pipes for any visible defects such as cracks, dents, or surface irregularities. This visual inspection ensures that the pipes meet the required specifications and are free from any visible flaws. Additionally, non-destructive testing (NDT) methods are employed to evaluate the internal and external quality of the steel pipes. One widely used NDT technique is ultrasonic testing, which involves sending ultrasonic waves through the pipes to detect any internal defects or inconsistencies in the material. This method can identify issues like wall thickness variations, inclusions, or weld defects that may compromise the pipe's integrity. Another popular NDT technique is magnetic particle inspection, which uses magnetic fields and iron particles to identify surface cracks or flaws in the steel pipes. This method is particularly effective for detecting defects in ferromagnetic materials and can be performed on both the outside and inside surfaces of the pipes. Furthermore, hydrostatic testing is often conducted to evaluate the pipes' strength and resistance to pressure. In this process, the pipes are filled with water or another suitable fluid and subjected to a specified pressure to check for leaks or structural weaknesses. This test helps ensure that the pipes are capable of withstanding the intended operational conditions without failure. In addition to these techniques, various quality control measures are implemented throughout the manufacturing process, including material traceability, dimensional checks, and chemical composition analysis. These measures help guarantee that the steel pipes meet the required standards and specifications, ensuring their quality and reliability. Overall, the inspection of steel pipes for quality involves a combination of visual inspection, non-destructive testing methods, and quality control measures. These comprehensive procedures help identify any defects, inconsistencies, or weaknesses, ensuring that the pipes meet the necessary quality standards and are fit for their intended purpose.
Q:How do you protect steel pipes from fire?
There are several measures available to protect steel pipes from fire. One commonly used approach involves applying fire-resistant coatings or paints to the surface of the pipes. These coatings or paints are specifically designed to endure high temperatures and create a barrier that prevents heat from reaching the steel. Another effective method is to wrap the steel pipes with fire-resistant insulation materials. These materials serve as a buffer, reducing heat transfer and slowing down the spread of fire. Mineral wool or ceramic fiber blankets are commonly utilized for this purpose. It is also crucial to ensure proper installation and support for the steel pipes. This includes maintaining adequate clearance from other flammable substances and avoiding overcrowding or obstructions that could hinder the flow of air around the pipes. Sufficient spacing between pipes is also essential to prevent heat transfer between them. Moreover, incorporating firestop systems is recommended when steel pipes pass through fire-rated walls or floors. These systems consist of fire-resistant materials and seals that prevent the spread of fire and smoke through openings or penetrations in fire-rated barriers. Regular maintenance and inspections are essential to uphold the ongoing effectiveness of the fire protection measures. Any damage or deterioration of the coatings, insulation, or firestop systems should be promptly addressed to maintain the fire resistance of the steel pipes. In conclusion, a combination of fire-resistant coatings, insulation, proper installation, and maintenance practices is imperative for safeguarding steel pipes against fire hazards. These measures play a crucial role in minimizing the risk of fire-related damage and ensuring the safety of both the pipes and the surrounding environment.

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