DUCTILE IRON PIPE C Class DN1600
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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 are the lubricants for the installation of ductile iron pipes for tap water?
- The lubricant can also be used for cooling, cleaning and preventing pollution. In order to improve lubricity, suitable additives may be added to certain lubricants.
- Q: Are ductile iron pipes resistant to acid attacks?
- Yes, ductile iron pipes are generally resistant to acid attacks. Ductile iron has a protective layer of graphite and a dense matrix structure that helps in preventing the penetration of acid. However, prolonged exposure to highly corrosive acids or extreme pH levels may still cause some degradation over time.
- Q: Can ductile iron pipes be used for trenchless pipe rehabilitation methods?
- Yes, ductile iron pipes can be used for trenchless pipe rehabilitation methods. Trenchless pipe rehabilitation methods involve repairing or rehabilitating existing pipelines without the need for extensive excavation or trenching. Ductile iron pipes are commonly used in these methods due to their durability, strength, and resistance to corrosion. They can be rehabilitated using various trenchless methods such as pipe lining, pipe bursting, and slip lining. These methods involve inserting a new lining or pipe inside the existing ductile iron pipe, thereby extending its lifespan and improving its structural integrity. Ductile iron pipes are preferred for trenchless rehabilitation as they can withstand the forces and pressures involved in the process while providing a long-lasting and reliable solution.
- Q: Can ductile iron pipe be used for both water and wastewater applications?
- Ductile iron pipe is versatile and can be used for water and wastewater applications. It is made by treating iron with small amounts of magnesium, resulting in a material that is both flexible and durable. This flexibility and durability make it suitable for transporting both water and wastewater. Its high strength and resistance to corrosion make it ideal for underground applications. Ductile iron pipes can handle the high pressures and varying flow rates commonly found in water distribution systems, as well as the corrosive properties of wastewater. In addition, they have a longer lifespan compared to other materials like PVC or concrete, which are commonly used for water and wastewater projects. Therefore, ductile iron pipes are often chosen for reliable and long-lasting water and wastewater transport.
- Q: What are the common methods for flow control in ductile iron pipes?
- Ductile iron pipes offer various options for flow control. Among them, valves are commonly used. Valves enable the regulation of water or other fluids flowing through the pipes. They can be either manually operated or automated, depending on the system's specific needs. Flow restrictors or flow limiters represent another method for controlling flow in ductile iron pipes. These devices are installed in the pipes to reduce the flow rate and ensure that the system operates within its intended parameters. Flow restrictors are particularly beneficial in situations where flow control is necessary to prevent damage or optimize system efficiency. Pressure regulators also contribute to flow control in ductile iron pipes. By maintaining a specific pressure level within the system, these devices help prevent excessive pressure that can lead to pipe bursts or other forms of damage. Furthermore, pressure regulators aid in maintaining a consistent pressure throughout the system, ensuring predictable and controlled flow. Flow meters provide yet another means of achieving flow control. These devices are installed in the pipes to measure the rate at which fluid passes through them. By monitoring the flow rate, operators can adjust valves or other flow control devices to maintain flow within the desired range. Flow meters are especially valuable in applications where accurate flow measurement is critical, such as industrial processes or water distribution systems. In conclusion, flow control in ductile iron pipes can be achieved through the use of valves, flow restrictors, pressure regulators, and flow meters. These methods can be combined or used individually, depending on the specific requirements of the system.
- Q: Can ductile iron pipes be used for water supply in buildings?
- Yes, ductile iron pipes can be used for water supply in buildings. Ductile iron pipes are known for their strength, durability, and corrosion resistance, making them suitable for a variety of applications, including water supply systems. They have a high tensile strength and can withstand high-pressure environments, making them ideal for delivering water to buildings. Additionally, ductile iron pipes have a long service life, reducing the need for frequent replacements. They also have good flow characteristics, allowing for efficient water distribution within the building. Therefore, ductile iron pipes are a reliable and commonly used choice for water supply systems in buildings.
- Q: What if the ductile iron pipe is broken?
- It is recommended that you used to repair defects of cast iron machine, are currently on the market to sell, but also can ensure welding intact appearance, make your products by quality, but if it is in the use of performance can not meet the effect, especially the pipeline pressure quite big, what methods are of no use that must be re cast as the new.
- Q: How can the ductile iron pipe be welded?
- Welding cast iron is mainly in three aspects: carbon control, stress elimination, structural adjustment. You can choose better welding materials, such as WE777 and other imported welding materials. Crack resistance is very good. In addition, the sewing process can be adopted in the structure to increase the stability of the welding effect. You can learn more about WE777 welding applications.
- Q: What is the difference between cast iron pipe and seamless steel pipe and galvanized steel pipe?
- Galvanized steel pipe: divided into cold galvanized steel pipe, hot galvanized steel pipe, cold galvanized steel pipe has been banned, and the latter is also advocated by the state for the time being. In 60s and 70s, developed countries began to develop new types of pipes, and galvanized pipes were banned. China's Ministry of construction and other four ministries also issued a civilization, indeed from two, 000 years since the galvanized pipe as a water supply pipe, the New District cold water pipe has rarely used galvanized pipe, and some of the hot water pipe is galvanized pipe. Hot dip galvanized steel pipe is widely used in fire, power and highway.
- Q: Can ductile iron pipe be used in corrosive environments?
- Yes, ductile iron pipe can be used in corrosive environments. Ductile iron is known for its ability to resist corrosion and has been widely used in various applications where corrosion resistance is required. The corrosion resistance of ductile iron is due to its protective oxide layer, which forms naturally on its surface and acts as a barrier against corrosive elements. Additionally, ductile iron pipes can be coated with various protective coatings such as polyethylene or epoxy to enhance their resistance to corrosion. These coatings provide an extra layer of protection, making ductile iron pipes suitable for use in highly corrosive environments such as wastewater treatment plants, industrial plants, and marine applications. However, it is important to consider the specific corrosive elements present in the environment and consult with experts or follow industry standards to ensure the appropriate coating and maintenance practices are implemented for long-term performance and durability.
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DUCTILE IRON PIPE C Class DN1600
- Ref Price:
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- Loading Port:
- China Main Port
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- Min Order Qty:
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- Supply Capability:
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