DUCTILE IRON PIPES K8 DN300
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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 typical pressure rating of ductile iron pipes?
- The typical pressure rating of ductile iron pipes varies depending on the application and the size of the pipe. However, ductile iron pipes are generally designed and manufactured to withstand high pressure levels. In water and wastewater systems, for example, ductile iron pipes typically have a pressure rating of 250 psi (pounds per square inch) or higher. For larger pipes used in industrial applications, such as oil and gas pipelines, the pressure rating can be even higher, ranging from 350 psi to 500 psi or more. It is important to consult the specific manufacturer's specifications and industry standards to determine the precise pressure rating for a particular ductile iron pipe.
- Q: Can ductile iron pipe be used for horizontal directional drilling?
- Yes, ductile iron pipe can be used for horizontal directional drilling (HDD). HDD is a trenchless method of installing underground utilities, such as pipelines, without the need for traditional open-cut trenching methods. Ductile iron pipe is often used in HDD projects due to its strength, durability, and ability to withstand the stresses and strains associated with directional drilling. It has excellent resistance to external loads and can withstand the bending and pulling forces involved in HDD installations. However, it is important to consider factors such as pipe diameter, wall thickness, and soil conditions to ensure proper pipe selection for HDD projects. Additionally, proper installation techniques and precautions should be followed to ensure the long-term performance and integrity of the ductile iron pipe in HDD applications.
- Q: What are ductile iron pipes?
- Ductile iron pipes, possessing high tensile strength and flexibility, are a variant of iron pipes. They are manufactured by treating cast iron with small quantities of magnesium, resulting in a material that surpasses traditional cast iron pipes in terms of strength and resilience. The introduction of magnesium alters the microstructure of the iron, leading to the formation of graphite nodules within the iron, hence the term "ductile iron". This distinctive structure grants ductile iron pipes exceptional properties, enabling them to withstand high pressures and extreme temperatures without cracking or breaking. Consequently, ductile iron pipes are commonly employed in water and wastewater systems, as well as various industrial applications, due to their durability, longevity, and capacity to endure external loads. Moreover, their ease of installation and minimal maintenance requirements have made them a favored choice in the construction industry.
- Q: Can ductile iron pipe be used for wastewater treatment plants?
- Yes, ductile iron pipe can be used for wastewater treatment plants. Ductile iron pipe is a strong and durable material that is resistant to corrosion and abrasion. It is commonly used in wastewater treatment plants due to its ability to handle the harsh and corrosive environment often found in these facilities. Ductile iron pipe is also known for its excellent hydraulic performance, making it suitable for transporting wastewater efficiently and effectively. Additionally, the ease of installation and maintenance of ductile iron pipe make it a practical choice for wastewater treatment plants. Overall, ductile iron pipe is a reliable and cost-effective option for wastewater treatment applications.
- Q: Can ductile iron pipes be used in areas with high soil salinity?
- Indeed, areas with high soil salinity can accommodate the use of ductile iron pipes. These pipes possess notable resistance to corrosion, rendering them compatible with different soil conditions, even those with elevated salinity levels. Usually, these pipes are coated with a safeguarding layer, such as polyethylene or zinc, which bolsters their capacity to ward off corrosion caused by saltwater or saline soils. Furthermore, employing appropriate installation methods, such as meticulous backfilling and soil compaction around the pipes, can effectively mitigate the potential consequences of high soil salinity on the durability and effectiveness of ductile iron pipes.
- Q: How are ductile iron pipes different from PVC pipes?
- Ductile iron pipes are made from a type of iron that has a higher strength and durability compared to PVC pipes, which are made from a type of plastic. Ductile iron pipes are more suitable for high-pressure and underground applications due to their superior strength, while PVC pipes are commonly used for low-pressure and aboveground applications. Additionally, ductile iron pipes have a longer lifespan and can withstand higher temperatures, making them more suitable for a wide range of environments.
- Q: How does ductile iron pipe resist internal corrosion?
- The resistance of ductile iron pipe to internal corrosion is achieved through a combination of distinct material properties and the use of protective coatings. To start, ductile iron, also known as nodular cast iron, is created by incorporating magnesium into molten iron, resulting in a graphite structure that is nodular or spherical in shape. This unique structure enhances the material's flexibility and elasticity, reducing the likelihood of cracking or fracturing when subjected to stress. Moreover, ductile iron possesses a dense microstructure with a high carbon content, serving as a barrier that prevents corrosive elements from penetrating the surface of the pipe. This inherent resistance to corrosion makes ductile iron pipe suitable for transporting various fluids, including water, sewage, and chemicals, without the risk of deterioration over time. Additionally, ductile iron pipes are often lined with protective coatings internally, further augmenting their resistance to corrosion. These coatings, such as cement mortar or epoxy, form a barrier between the pipe's surface and the fluid it carries, minimizing direct contact and decreasing the likelihood of corrosion. These linings are implemented during the manufacturing process, ensuring consistent and durable protection along the entire length of the pipe. In conclusion, ductile iron pipe successfully resists internal corrosion due to its material composition, including the nodular graphite structure and high carbon content, as well as the application of protective coatings. This combination of factors guarantees the longevity and dependability of ductile iron pipes in various applications, even in environments prone to corrosion.
- Q: Can ductile iron pipes be used for large-scale irrigation systems?
- Yes, ductile iron pipes can be used for large-scale irrigation systems. Ductile iron pipes are known for their strength, durability, and corrosion resistance, making them suitable for various applications, including irrigation. They can handle high-pressure water flow and provide long-lasting performance, making them a reliable choice for large-scale irrigation systems.
- Q: Can ductile iron pipes be repaired if damaged?
- Yes, ductile iron pipes can be repaired if they are damaged. The repair process involves several steps. Firstly, the damaged section of the pipe needs to be identified and isolated. Once that is done, the damaged portion of the pipe is typically cut out and removed. A new section of pipe is then inserted and connected to the existing pipeline using appropriate methods such as welding or mechanical jointing. The repaired section is then tested to ensure its integrity and functionality. It is worth noting that the repair process may vary depending on the extent and nature of the damage, and it is always recommended to consult with professionals who specialize in ductile iron pipe repairs to ensure proper and effective restoration.
- Q: Can ductile iron pipe be used for power plant cooling water systems?
- Yes, ductile iron pipe can be used for power plant cooling water systems. Ductile iron pipe is known for its strength, durability, and corrosion resistance, making it a suitable choice for transporting water in power plant cooling systems. Additionally, its ability to withstand high pressure and temperature variations makes it a reliable option for such applications.
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DUCTILE IRON PIPES K8 DN300
- Ref Price:
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- Loading Port:
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- Min Order Qty:
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- Supply Capability:
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