DUCTILE IRON PIPE K9 DN80
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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: Can ductile iron pipes be used in high-temperature applications?
- Yes, ductile iron pipes can be used in high-temperature applications. Ductile iron has excellent heat resistance properties, with a maximum recommended operating temperature of around 450 degrees Fahrenheit. This makes it suitable for a wide range of industrial and commercial applications where high temperatures are involved, including steam, hot water, and thermal oil systems.
- Q: How do ductile iron pipes handle water velocity?
- Due to their unique mechanical properties, ductile iron pipes are well-suited for managing water velocity. Ductile iron, being a highly durable and strong material, can endure high water velocities without significant damage or deformation. The inherent ductility of the pipe enables it to absorb the energy generated by the flowing water, effectively reducing the risk of pipe failure or bursting. This characteristic makes ductile iron pipes suitable for handling high-pressure water flow, making them an ideal choice in situations where water velocity is a concern. Furthermore, the smooth internal surface of ductile iron pipes promotes efficient water flow and minimizes friction losses. This smoothness reduces resistance encountered by the water as it moves through the pipe, allowing for higher water velocities without compromising the pipe's integrity. Moreover, ductile iron pipes can be manufactured in various sizes and thicknesses, providing customization options based on specific water velocity requirements. This flexibility ensures that ductile iron pipes can effectively manage a wide range of water velocities, from low-flow applications to high-velocity scenarios. In conclusion, ductile iron pipes possess exceptional capabilities when it comes to handling water velocity. Their strength, ductility, and smooth internal surface contribute to their ability to withstand high water velocities without compromising their structural integrity, making them a dependable choice for water distribution systems.
- Q: When the ductile iron pipe is pressed, the three links are always running out. What should be done?
- If the pipe is not laid, but installed outdoors, it is recommended to cement the pier and stabilize the pipe at the three and the pipe connection. The problem of the above situation lies in the pressure test in the open air, the outer wall of the pipe without the external pressure and the balance of internal pressure. Xin hot pipe industry
- Q: How are ductile iron pipes repaired in case of damage?
- Due to their high durability and strength, ductile iron pipes are commonly utilized in various applications. However, like any other materials, these pipes can sustain damage over time due to external influences or internal corrosion. In such instances, there exist several techniques available for repairing ductile iron pipes. One prevalent method is the trenchless repair technique, which allows for the restoration of the damaged section without the need for extensive excavation. This method typically employs specialized equipment to access and repair the affected area. Its advantages lie in minimizing disruption to the surrounding environment and reducing excavation costs. Another approach for repairing ductile iron pipes involves the application of epoxy lining. This process entails the use of epoxy resin to seal any cracks or leaks on the interior surface of the pipe. Epoxy lining is a cost-efficient and effective solution as it provides long-lasting repairs and enhances the overall condition of the pipe. In cases where the damage is severe or extensive, it may be necessary to replace the damaged section of the ductile iron pipe. This typically involves removing the compromised portion and installing a new pipe section. The replacement process may require excavation and can be more time-consuming and costly compared to other repair methods. Nonetheless, it guarantees a comprehensive and permanent solution for the damaged pipe. It is essential to note that the choice of repair method for ductile iron pipes depends on factors such as the extent of the damage and accessibility. Professional assessment and inspection play a crucial role in determining the most suitable repair technique. Consulting experienced pipeline repair specialists or civil engineers is highly recommended to ensure the most effective and durable repair solution for ductile iron pipes.
- Q: How is ductile iron pipe manufactured?
- The manufacturing of ductile iron pipe involves a specific process called centrifugal casting. To start, iron is melted in a furnace and certain elements like carbon and silicon are added to achieve desired properties. Once the iron is melted, it is poured into a mold or die that is rotating at a high speed. As the molten iron is poured into the rotating mold, centrifugal force causes the liquid metal to move towards the inner surface of the mold. This force results in the metal solidifying from the outer surface inward. This creates a pipe with a dense outer layer and a more porous inner layer. The centrifugal casting process guarantees that the outer surface of the pipe is free from impurities and defects, ensuring its strength and durability. Once the pipe has solidified, it is taken out of the mold and undergoes further processing. The pipe is cleaned, excess material is trimmed, and any imperfections on the surface are eliminated. It is then given a protective coating, such as zinc or epoxy, to enhance its resistance to corrosion. The final step in the manufacturing process is quality control and testing. Ductile iron pipes go through various tests to ensure they meet the required standards. These tests include hydrostatic pressure testing, dimensional inspection, and inspection of the internal and external coating. In conclusion, ductile iron pipe is manufactured using the centrifugal casting process, which involves melting iron, pouring it into a rotating mold, and allowing it to solidify under the influence of centrifugal force. The resulting pipe is then cleaned, coated, and subjected to rigorous quality control to ensure its strength, durability, and adherence to standards.
- Q: Can ductile iron pipe be used for fire protection systems?
- Yes, ductile iron pipe can be used for fire protection systems. Ductile iron pipe is known for its strength and durability, making it suitable for various applications, including fire protection systems. Its high tensile strength and resistance to cracking and breaking make it a reliable choice for transporting water and other fire suppression agents. Additionally, ductile iron pipe has excellent corrosion resistance properties, ensuring long-term performance and reliability in fire protection systems. Overall, ductile iron pipe is a suitable and commonly used material for fire protection systems due to its strength, durability, and corrosion resistance.
- Q: What are the typical joint sealing requirements for ductile iron pipes?
- When sealing joints in ductile iron pipes, two common methods are typically used: rubber gaskets and mechanical joints. Rubber gaskets are frequently chosen for their reliability and flexibility. They are typically made of synthetic rubber materials that are resistant to water, chemicals, and other environmental factors. On the other hand, mechanical joints are also commonly used for sealing joints in ductile iron pipes. These joints utilize a mechanical device to connect the pipes and create a watertight seal. They are designed to allow for some movement and flexibility, which is particularly important in areas prone to ground movement or settlement. In addition to using rubber gaskets or mechanical joints, it is crucial to properly clean and prepare the pipe surfaces before joining them. This involves removing any dirt, debris, or old joint material from the pipe ends to ensure a secure seal. Following the manufacturer's instructions, the joint should be assembled, ensuring that the gasket or mechanical joint is correctly positioned and tightened to the recommended torque. In summary, the typical requirements for sealing joints in ductile iron pipes involve the use of rubber gaskets or mechanical joints, thorough cleaning and preparation of the pipe ends, and adherence to the manufacturer's assembly instructions. These requirements are essential to achieve a durable and watertight joint that can withstand the pressures and environmental conditions commonly encountered in ductile iron pipe systems.
- Q: How do ductile iron pipes handle ground movement or settlement?
- Ductile iron pipes are known for their exceptional strength and flexibility, which allows them to handle ground movement or settlement effectively. Ground movement or settlement refers to the natural shifting or settling of the earth's surface, which can put stress on underground infrastructure like pipes. When it comes to ground movement, ductile iron pipes have the advantage of being able to withstand and absorb the pressure and movement caused by the shifting soil. The ductility of the material allows the pipes to flex and bend to a certain degree without breaking. This flexibility helps to distribute the load and minimize the potential for damage. Moreover, ductile iron pipes have a high resistance to cracking or fracturing, even under extreme conditions. This resilience is due to the unique microstructure of the material, which provides excellent tensile strength and impact resistance. As a result, ductile iron pipes can withstand external forces and ground settlement without compromising their integrity. To further enhance their ability to handle ground movement or settlement, ductile iron pipes are often installed using flexible joints. These joints allow for slight movement and accommodate any shifting or settling of the ground. Additionally, proper bedding and backfilling techniques are employed during installation to provide additional support and stability. Overall, ductile iron pipes have a proven track record in handling ground movement or settlement. Their strength, flexibility, and resistance to cracking make them a reliable choice for underground infrastructure, ensuring the longevity and efficiency of water distribution systems.
- Q: How does ductile iron pipe handle soil movement?
- Ductile iron pipe has excellent resistance to soil movement due to its high flexibility and strength. It can withstand ground settlement, soil shifting, and other forms of soil movement without cracking or breaking. The pipe's ductility allows it to absorb the stress and strain caused by soil movement, making it a reliable and durable choice for underground pipelines.
- Q: Are ductile iron pipes suitable for use in seismic areas?
- Yes, ductile iron pipes are suitable for use in seismic areas. Ductile iron has high strength and flexibility, making it resistant to seismic forces. It is able to withstand ground movements and vibrations during earthquakes without significant damage, making it a reliable choice for water and wastewater infrastructure in seismic areas.
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DUCTILE IRON PIPE K9 DN80
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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