DUCTILE IRON PIPE K9 DN1400
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Ductile Iron Cast Pipe is without any defects compare with tradition casting tech, which has many advantages particularly as follow:
(1) High density. In the "vertical upward casting" process, the melt iron of centre liquid column in center crystallizer is continuously feeding for volume shrinkage caused by condensation tube at outer circumference , which lead to be free of shrinkage porosity.
(2) High purity. When melt iron pouring, the mixed impurities such as gas, dross, sand grain which are lighter than melt iron could be eliminated at furnace mouth, its impossible to enter into the crystallizer through the channel, so the melt iron into the crystallizer is very pure.
(3) Strength with toughness. The cooling speed provided by continuous crystallizer is 30 times than sand casting and 5 times than centrifugal casting, and doesn't produce white iron, the eutectic cell volume of continuous cast iron is one eighth to one tenth compare with traditional cast iron. The density of graphite nodule in ductile iron can reach 300-700 pcs/mm2. Therefore, all reason above improve the strength and toughness of continuous cast iron.
(4) Free machining. The high speed cooling make the hardening phase (such as boride, steadite) not appear like reticular, massive or thick, but diffuse like fish bone and pane in shape, moreover, there are tiny graphite flakes inlaid hardening phase. It's free machining in BrinellHardness the range of 250-300HB. However, the Brinell Hardness of 250 is top limit to common metal materials.
(5) Uniform composition of tube wall. The convection mixing of liquid column caused by marching type drawing in crystallizer make the composition of tube wall well-distributed, and concentration gradient very little.
(6) High productivity. To the wall thickness of tube under 10mm, the speed of continuous casting is 1 meter/min, to the wall thickness of tube under 20mm, the speed of continuous casting is 0.5 meter/min, which is high efficiency that centrifugal or other casting tech couldn't reach.
- Q: What is the expected leakage rate for ductile iron pipes?
- The expected leakage rate for ductile iron pipes can vary depending on various factors such as the age, condition, and installation methods of the pipes, as well as the quality of the materials used. However, ductile iron pipes are generally known for their durability and low leakage rates compared to other pipe materials. According to industry standards and research studies, the expected leakage rate for well-maintained ductile iron pipes can be as low as 0.1% per year. This means that, on average, less than 1 liter of water per meter of pipe length may leak annually. However, it is important to note that this is an average figure and actual leakage rates can vary. Regular maintenance and inspections play a crucial role in minimizing leaks and ensuring the longevity of ductile iron pipes. Additionally, proper installation techniques, such as using effective jointing methods and adequate bedding and backfill materials, can also contribute to reducing leakage rates. It is recommended to consult with industry professionals and adhere to applicable standards and regulations to determine the expected leakage rate for specific ductile iron pipe installations.
- Q: Can ductile iron pipes be used for underground hydrocarbon pipelines?
- Yes, ductile iron pipes can be used for underground hydrocarbon pipelines. Ductile iron pipes are known for their strength, durability, and resistance to corrosion, making them suitable for transporting hydrocarbons underground. However, it is important to consider factors like the specific hydrocarbon being transported, pressure requirements, and regulatory standards before selecting the appropriate material for the pipeline.
- Q: Are ductile iron pipes suitable for underground storage tanks?
- Underground storage tanks can indeed benefit from the use of ductile iron pipes. Ductile iron, known for its strength and durability, exhibits exceptional resistance to corrosion and can withstand the immense pressure and weight associated with burial underground. These pipes find widespread application in various underground systems, such as water and sewage systems, owing to their remarkable tensile strength and ability to handle both internal and external loads. Furthermore, ductile iron pipes boast an extended service life, often surpassing 100 years, rendering them a dependable choice for underground storage tanks. They also possess resistance against ground movement and can adapt to soil settling or shifting, thereby ensuring the integrity and stability of the storage tank system. Moreover, the smooth internal surface of ductile iron pipes provides excellent flow characteristics, preventing the accumulation of debris or sediment that may impede the system. Hence, they prove to be an ideal option for storing a diverse range of liquids or substances. In conclusion, the strength, durability, corrosion resistance, and long service life of ductile iron pipes establish them as a suitable and reliable choice for underground storage tanks.
- Q: How are ductile iron pipes protected against internal corrosion?
- Ductile iron pipes are protected against internal corrosion through a process called cement mortar lining. This involves applying a layer of cement mortar to the inner surface of the pipe, creating a protective barrier between the iron and the water flowing through it. This lining helps to prevent the formation of rust, corrosion, and scale build-up, ensuring the longevity and durability of the pipes.
- Q: What is the difference between ductile iron pipes and cast iron pipes?
- Ductile iron pipes and cast iron pipes are both commonly used in various applications, but they differ in their composition, properties, and manufacturing processes. Composition: Ductile iron pipes are made from a type of cast iron known as ductile iron, which contains higher levels of carbon, silicon, and other alloying elements like magnesium. On the other hand, cast iron pipes are made from regular cast iron, which has a higher carbon content and lower levels of alloying elements. Properties: Ductile iron pipes are known for their high tensile strength, flexibility, and durability. They can withstand higher pressure and have a greater resistance to impact, making them suitable for applications that require robust performance. In contrast, cast iron pipes are more brittle and fragile, which makes them prone to cracking or breaking under pressure or impact. Manufacturing process: Ductile iron pipes are created through a process called centrifugal casting, where molten ductile iron is poured into a spinning mold. This centrifugal force helps in distributing the molten metal evenly, resulting in a strong and uniform pipe. Cast iron pipes, on the other hand, are made using a process called sand casting, where molten cast iron is poured into a mold made of compacted sand. This method is less precise and can lead to variations in the final product. Applications: Due to their superior strength and flexibility, ductile iron pipes are commonly used in water and sewage systems, as well as in industrial pipelines that require high-pressure resistance. Cast iron pipes, on the other hand, are typically used in non-pressure applications like drainage systems or underground sewer lines. In summary, the main difference between ductile iron pipes and cast iron pipes lies in their composition, properties, manufacturing processes, and applications. Ductile iron pipes offer greater strength, flexibility, and durability, making them suitable for high-pressure applications, while cast iron pipes are more brittle and commonly used in non-pressure applications.
- Q: Water supply pipe is ductile iron, then it's fittings and valves and other parts must be ductile iron?
- The pipe material does not determine the valve material, the valve is generally based on several pressure temperature rating, medium condition and velocity, the valve must play a role as valve material, such as wear resistance, corrosion resistance, and so on,
- Q: What is the expected bending stress capacity of ductile iron pipes?
- Ductile iron pipes exhibit varying expected bending stress capacities due to factors such as diameter, wall thickness, and the grade of ductile iron utilized. However, in general, ductile iron pipes possess superior bending stress capacities compared to alternative pipe materials. Ductile iron pipes are renowned for their remarkable tensile strength and flexibility, enabling them to endure substantial bending stresses. Determining the precise bending stress capacity involves comprehensive testing and analysis, taking into account the pipe's mechanical properties, dimensions, and maximum allowable deflection. It is crucial to evaluate the bending stress capacity of ductile iron pipes in accordance with established industry standards and guidelines. These may involve standards like the American Water Works Association (AWWA) C150 or the International Organization for Standardization (ISO) 2531, which outline specifications and testing methodologies for ductile iron pipes. Ultimately, the anticipated bending stress capacity of ductile iron pipes hinges upon various factors and necessitates an assessment tailored to the specific application requirements. It must consider industry standards and guidelines to ensure precise and dependable results.
- Q: What is the typical cost of maintenance for ductile iron pipes?
- The typical cost of maintenance for ductile iron pipes can vary depending on several factors. These factors include the age and condition of the pipes, the location and accessibility of the pipes, and the specific maintenance requirements. In general, regular maintenance activities for ductile iron pipes may include cleaning and flushing to remove sediment and debris, inspecting for leaks or cracks, repairing or replacing damaged sections, and applying protective coatings to prevent corrosion. These maintenance tasks are essential to ensure the longevity and performance of the pipes. The cost of maintenance for ductile iron pipes can range from a few hundred dollars to several thousand dollars per year, depending on the extent of maintenance required. Routine maintenance activities such as cleaning and inspection may have lower associated costs, while more significant repairs or replacements can be more expensive. Additionally, the cost of maintenance can be influenced by external factors such as labor costs, materials, and contractor fees. It is crucial to consider these factors and consult with professionals or utility companies for accurate cost estimates specific to your location and situation. Overall, while the cost of maintenance for ductile iron pipes can vary, investing in regular maintenance is essential to extend the lifespan and functionality of the pipes, minimize disruptions, and prevent costly repairs or replacements in the long run.
- Q: Can ductile iron pipes be used in areas with high soil acidity and alkalinity?
- Ductile iron pipes can generally be used in areas with high soil acidity and alkalinity. However, it is important to consider the specific conditions and take appropriate measures to mitigate the potential effects of these soil characteristics on the pipes. In areas with high soil acidity, the acidic conditions can promote corrosion of metal pipes, including ductile iron. To prevent this, protective measures such as applying an external coating or using cathodic protection can be implemented. These measures help to create a barrier between the pipe and the corrosive environment, extending the longevity of the pipes. Similarly, in areas with high soil alkalinity, the alkaline conditions can also have an impact on the performance of ductile iron pipes. Alkaline soils can cause the formation of calcium carbonate deposits, commonly known as scale, which can reduce the flow capacity of the pipes over time. Regular maintenance and cleaning of the pipes can help mitigate the effects of scale buildup. It is worth noting that the suitability of ductile iron pipes in areas with high soil acidity and alkalinity may also depend on the specific grade and quality of the pipes. Manufacturers often provide guidelines and recommendations regarding the use of their products in various environmental conditions. It is advisable to consult with pipe manufacturers or industry experts to ensure proper selection and installation of ductile iron pipes in such areas.
- Q: Advantages and disadvantages of ductile iron pipes?
- Ductile iron pipes are widely used for municipal water supply and drainage, rural drinking water and outdoor fire fighting works; mechanisms; cast iron pipes; main use; municipal high water drainage.
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DUCTILE IRON PIPE K9 DN1400
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
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