DUCTILE IRON PIPE K8 DN450
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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 pipe be used for wastewater treatment plant sludge handling?
- Yes, ductile iron pipe can be used for wastewater treatment plant sludge handling. Ductile iron pipes are known for their durability, corrosion resistance, and ability to withstand heavy loads, making them suitable for handling sludge in wastewater treatment plants.
- Q:What is the difference between spheroidal graphite cast iron QT400-15 and QT400-15A? What does the A mean later?
- The front is the material grade, and the back of the A should have special requirements.
- Q:The plug connection DN800 ductile iron pipe has been installed. "Shall I think so?"
- Ductile iron pipes are defined as pipes made by casting more than 18 of casting molten iron by adding a spheroidal agent and then centrifugally centrifugally cast by a centrifugal nodular cast iron machineDuctile iron pipe ([span]Ductile Cast Iron Pipes), referred to as ball pipe, ductile iron pipe and ductile iron pipe etc..
- Q:What is the weight of ductile iron pipes compared to other materials?
- Compared to other commonly used materials in the construction industry, ductile iron pipes tend to be heavier. The weight of these pipes can vary depending on their specific size and dimensions, but they are usually heavier than materials like PVC, HDPE, and steel pipes. The primary reason for this increased weight is the dense nature of ductile iron, which grants it durability, strength, and resistance to corrosion. However, this weight also presents challenges in terms of transportation, installation, and handling, necessitating appropriate equipment and techniques for safe and efficient installation. Despite being heavier, ductile iron pipes offer numerous advantages in terms of longevity and performance in various applications.
- Q:Are ductile iron pipes resistant to freeze-thaw cycles?
- Yes, ductile iron pipes are resistant to freeze-thaw cycles. Ductile iron is a type of cast iron that has been treated with magnesium, which improves its strength, durability, and resistance to cracking. This enhanced material properties make ductile iron pipes highly resistant to the expansion and contraction that occurs during freeze-thaw cycles. Unlike other materials such as PVC or concrete, which may crack or break under the pressure caused by freezing water, ductile iron pipes have the ability to withstand these cycles without sustaining any significant damage. Additionally, ductile iron pipes have a smooth interior surface that prevents the formation of ice or frost buildup, further enhancing their resistance to freeze-thaw cycles. Overall, ductile iron pipes are an excellent choice for water distribution systems in regions with cold climates, as they offer superior resistance to the effects of freezing and thawing.
- Q:Can ductile iron pipe be used for water supply to remote areas?
- Ductile iron pipe is indeed applicable for providing water supply to far-flung regions. Its exceptional strength and durability render it suitable for transmitting water over long distances. These pipes can endure high pressure and withstand external loads and impacts, making them an ideal choice for rough terrains and remote locations that pose challenges in terms of maintenance and repairs. Moreover, ductile iron pipes are equipped with a protective lining that prevents corrosion and guarantees the safety of the water for consumption. Consequently, ductile iron pipes prove to be an effective and dependable option for water supply to remote areas.
- Q:What is the expected deflection limit of ductile iron pipes?
- The expected deflection limit of ductile iron pipes varies depending on several factors such as pipe diameter, wall thickness, and soil conditions. However, general industry standards suggest that ductile iron pipes should not exceed a deflection limit of 2% for underground installations. This means that the maximum allowable deflection would be 2% of the pipe's diameter. It is important to note that exceeding the deflection limit can lead to potential issues such as reduced flow capacity, increased risk of pipe failure, and compromised structural integrity. Therefore, it is crucial to carefully consider and adhere to the recommended deflection limits during the design and installation of ductile iron pipes to ensure their long-term performance and reliability.
- Q:What is the expected service life of ductile iron pipe?
- The expected service life of ductile iron pipe can vary depending on various factors such as the quality of the pipe, the environment it is installed in, and the maintenance and care it receives. However, on average, ductile iron pipe has a life expectancy of 80 to 100 years.
- Q:Are ductile iron pipes suitable for installation in areas with high groundwater table?
- Yes, ductile iron pipes are suitable for installation in areas with a high groundwater table. Ductile iron pipes are known for their high strength and durability, making them ideal for underground installations. They can withstand the external pressure from the groundwater without deforming or collapsing. Additionally, ductile iron pipes have excellent corrosion resistance, which helps protect them from the potentially corrosive effects of groundwater. Therefore, they can be safely used in areas with a high groundwater table, providing reliable and long-lasting water supply infrastructure.
- Q:How are ductile iron pipes protected against freeze-thaw cycles?
- Several measures are taken to protect ductile iron pipes from freeze-thaw cycles. Firstly, the material used in these pipes is naturally resistant to low temperatures, allowing them to withstand freezing conditions without becoming brittle or prone to cracking. Furthermore, a protective layer such as cement mortar lining or polyethylene encasement is often applied to the pipes. This extra barrier helps insulate the pipe and prevents direct contact between the iron and the surrounding environment, reducing the risk of freeze-thaw damage. Moreover, ductile iron pipes are designed with joints that allow for movement and flexibility. This design feature helps accommodate any expansion or contraction that may occur during freeze-thaw cycles, minimizing the risk of pipe breakage or damage caused by freezing water pressure. Proper installation practices, including sufficient bedding and backfilling, are also crucial in protecting ductile iron pipes from freeze-thaw cycles. Adequate support and suitable materials surrounding the pipes help minimize the impact of freezing temperatures on the structural integrity of the pipes. Regular inspection and maintenance of ductile iron pipes are essential for identifying any potential issues resulting from freeze-thaw cycles. Periodic assessments can detect signs of damage or deterioration, allowing for timely repairs or replacement to prevent further damage. In conclusion, ductile iron pipes are safeguarded against freeze-thaw cycles through the material's inherent resistance, protective coatings, flexible joints, proper installation practices, and regular maintenance. These measures collectively ensure the durability and longevity of ductile iron pipes, even in cold weather conditions.
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DUCTILE IRON PIPE K8 DN450
- Ref Price:
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- Loading Port:
- China Main Port
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- TT OR LC
- Min Order Qty:
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