• Coated Steel Composite Pipe for Water Supply System 1
  • Coated Steel Composite Pipe for Water Supply System 2
  • Coated Steel Composite Pipe for Water Supply System 3
Coated Steel Composite Pipe for Water Supply

Coated Steel Composite Pipe for Water Supply

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Loading Port:
China main port
Payment Terms:
TT or LC
Min Order Qty:
100 m
Supply Capability:
10000 m/month

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Coated Steel Composite Pipe for Water Supply

 

Press grade: Applied for pipe system not bigger than 10MPa

Size: DN50MM-DN1600MM

 

Specification

Features:

Q:What is the difference between steel pipes and aluminum pipes?
The main difference between steel pipes and aluminum pipes lies in their material composition. Steel pipes are made of an alloy primarily composed of iron and carbon, making them strong, durable, and resistant to corrosion. On the other hand, aluminum pipes are made of aluminum, which is a lightweight metal known for its excellent corrosion resistance and high thermal conductivity. Aluminum pipes are typically used in applications that require lightweight materials or where corrosion resistance is crucial, while steel pipes are commonly used in heavy-duty applications that require strength and durability.
Q:Seamed steel pipe seamless steel pipe, carbon steel pipe, galvanized pipe, four how to distinguish between
Seamless steel tube processing technology:1.1 、 hot rolled seamless tubes are usually produced on automatic rolling mills. After checking and cleaning the surface defects, the solid tube is cut into the required length, centring on the end face of the tube blank, then sent to the heating furnace and punched on the piercer. At the same time, the hole rotates and advances continuously. Under the action of the roller and the plug, the inner cavity of the pipe blank is gradually formed, and the cavity is called the capillary. Sent to the automatic tube rolling mill on rolling. Finally, the thickness of the whole machine is the same, and the diameter of the sizing machine is determined to meet the specifications. It is an advanced method to produce seamless steel tube by continuous rolling mill.1.2, in order to obtain smaller size and better quality of seamless tube, cold rolling, cold drawing method must be used or combined. Cold rolling is usually carried out on a two roller mill, where the steel tube is rolled in the annular groove made of variable cross section, round hole groove and stationary conical head. Cold drawing is usually performed in single chain or double chain cold drawn machines from 0.5 to 100T.1.3, the extrusion method will soon heat the tube blank in the closed extrusion cylinder, the perforation bar and extrusion rod movement, so that extrusion parts from the smaller hole extrusion. This method can produce smaller diameter steel pipe.Seamless steel pipe use: mainly used to transport fluid pipeline or structural parts.The main use of steel pipe joints (steel) two welded together, so the price is cheap, widely used.
Q:What is DN50 for welded pipe?
Commonly used in the market DN50 seamless steel pipe, the outer diameter has two specifications: A, 57mm, B, 60mm, if no special instructions, commonly used is 57mm. The outer diameter of the welded pipe is only 60mm this specification.
Q:Can steel pipes be used for transportation of hazardous materials?
Yes, steel pipes can be used for the transportation of hazardous materials. Steel pipes are commonly used for transporting various types of hazardous materials such as chemicals, gases, and liquids. They are known for their strength, durability, and resistance to corrosion, making them suitable for safely transporting these materials over long distances. Additionally, steel pipes can be designed to meet specific safety standards and regulations to ensure the secure transportation of hazardous substances.
Q:How are steel pipes used in tunnel construction?
Steel pipes are commonly used in tunnel construction for various purposes such as drainage, ventilation, and support. These pipes are installed to facilitate the removal of water from the tunnel, ensuring a dry working environment. They also serve as conduits for supplying fresh air and removing exhaust fumes. Additionally, steel pipes are utilized as structural supports, providing stability and reinforcement to the tunnel walls and ceilings.
Q:How are steel pipes protected against external damage?
Steel pipes are protected against external damage through various methods such as anti-corrosion coatings, insulation materials, and cathodic protection systems. These measures help prevent corrosion, impact, and abrasion, ensuring the durability and longevity of the pipes.
Q:What are the common factors affecting the flow capacity of steel pipes?
There are several common factors that can affect the flow capacity of steel pipes. 1. Pipe Diameter: The diameter of the pipe is one of the most significant factors affecting flow capacity. The larger the diameter, the greater the flow capacity as there is more area for the fluid to pass through. 2. Pipe Length: The length of the pipe also plays a role in flow capacity. Longer pipes generally have higher frictional losses, which can reduce the flow capacity. 3. Surface Roughness: The internal surface roughness of the steel pipe can impact flow capacity. Rough surfaces create more friction, which can reduce the flow rate. Smooth pipes, on the other hand, allow for smoother flow and higher flow capacity. 4. Fluid Properties: The properties of the fluid being transported through the steel pipe can affect flow capacity. Factors such as viscosity, temperature, and density can impact the flow rate. For example, highly viscous fluids will have lower flow capacity compared to less viscous fluids. 5. Pressure Drop: Pressure drop along the length of the pipe is another factor that affects flow capacity. As fluid flows through the pipe, there may be pressure losses due to friction, bends, or restrictions. Higher pressure drops result in lower flow capacity. 6. Pipe Material and Wall Thickness: The material of the steel pipe and its wall thickness can influence flow capacity. Different materials have different properties that can affect flow rates. Additionally, thicker walls can reduce the internal diameter of the pipe, resulting in lower flow capacity. 7. Pipe Layout and Fittings: The design and layout of the pipe system, including the presence of fittings such as valves, elbows, and tees, can impact flow capacity. These fittings can cause additional pressure drops and turbulence, reducing the overall flow rate. It is important to consider these factors when designing or evaluating a steel pipe system to ensure optimal flow capacity and efficiency.
Q:How are steel pipes protected against electrolytic corrosion?
Various methods can be employed to safeguard steel pipes against electrolytic corrosion. One commonly utilized approach involves the application of protective coatings on the pipe's surface. These coatings serve as a barrier, effectively preventing direct contact between the steel and the surrounding environment, which may contain moisture and other corrosive substances. Epoxy, polyethylene, and zinc are frequently employed coatings for this purpose. Another means of protection involves the utilization of sacrificial anodes. These anodes, typically fabricated from a metal that exhibits greater reactivity than steel, such as zinc or aluminum, are affixed to the steel pipes. Over time, as these anodes corrode, they willingly sacrifice themselves in order to shield the steel. This process, known as cathodic protection, is exceptionally successful in deterring electrolytic corrosion. Aside from coatings and sacrificial anodes, proper insulation and electrical isolation play a pivotal role in preventing electrolytic corrosion of steel pipes. Insulating materials, such as rubber or plastic sleeves, are employed to prevent direct contact between the pipes and other metals or electrolytes. Electrical isolation can be achieved through the use of dielectric unions or insulating flanges, which effectively obstruct the flow of electric current between different sections of the pipeline. Furthermore, regular maintenance and inspection are essential components of protecting steel pipes against electrolytic corrosion. Regular checks to assess coating integrity, anode condition, and potential electrical leakage are crucial in maintaining the ongoing efficacy of the corrosion protection system. In conclusion, a combination of protective coatings, sacrificial anodes, insulation, electrical isolation, and regular maintenance is indispensable in safeguarding steel pipes against electrolytic corrosion. By implementing these measures, the lifespan of steel pipes can be substantially prolonged, thereby ensuring the safety and reliability of various applications, including water distribution, oil and gas transportation, and structural support in buildings and infrastructure.
Q:How are steel pipes insulated for thermal purposes?
Steel pipes are commonly insulated for thermal purposes using a variety of methods. One of the most common methods is to wrap the pipes with insulation material such as fiberglass, mineral wool, or foam. This insulation material acts as a barrier between the pipe and the surrounding environment, preventing heat transfer or loss. To properly insulate steel pipes, the insulation material is typically wrapped tightly around the pipe, ensuring that there are no gaps or openings for heat to escape. The insulation is then secured in place using adhesive tapes or metal bands. In addition to external insulation, pipes can also be internally insulated. This involves placing insulation material inside the pipe, creating a layer of protection against heat loss or gain. Internal insulation is commonly used in applications where the pipe carries hot fluids or gases. Furthermore, some steel pipes are designed with a built-in insulation layer. These pipes, known as pre-insulated pipes, have insulation material already integrated into the pipe structure. The insulation layer is typically made of foam or mineral wool and is covered with a protective outer layer, providing effective thermal insulation. Insulating steel pipes for thermal purposes is crucial in various industries, such as oil and gas, HVAC, and plumbing. Proper insulation helps to maintain the desired temperature of the fluid or gas flowing through the pipes, preventing energy loss and improving overall efficiency.
Q:How are steel pipes transported?
Steel pipes are typically transported using various methods, including trucks, trains, and ships. They are often loaded onto flatbed trucks or railcars for land transportation, while larger quantities are transported by bulk carriers or container ships for overseas shipping. The pipes are secured with straps or chains to ensure safe and stable transport, and they may also be packed in bundles or placed in specially designed containers to protect them from damage during transit.

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