DUCTILE IRON PIPE K8 DN250
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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: Are ductile iron pipes suitable for use in irrigation canals?
- Yes, ductile iron pipes are suitable for use in irrigation canals. Ductile iron pipes are known for their strength, durability, and resistance to corrosion, making them ideal for transporting water in irrigation systems. They can handle high-pressure flows and are capable of withstanding the challenging conditions of irrigation canals.
- Q: What is the expected thermal expansion coefficient of ductile iron pipes?
- The expected thermal expansion coefficient of ductile iron pipes varies depending on several factors, including the specific composition of the iron and the temperature range in which the pipes are being used. However, as a general guideline, the thermal expansion coefficient of ductile iron pipes typically falls within the range of 10 to 14 x 10^-6 per degree Celsius (10-14 μm/m°C). This means that for every degree Celsius increase in temperature, a ductile iron pipe will expand by approximately 10 to 14 micrometers per meter of length. It is important to note that these values are approximate and may vary depending on the specific conditions and application of the pipes.
- Q: Does centrifugal cast iron pipe work well with lining cement? Will it scale and breed bacteria?
- From the centrifugal ductile cast iron pipe with cement production process to analysis, the most core pipe by centrifugal molding, concrete water cement ratio, the centrifugal force, the coarse aggregate to the outer wall of the pipe and the pipe inside; because of fine aggregate and water removal, strength and wear resistance variation. When the inner wall of the pipe by long-term washing and soaking water, and inner wall wear and erosion, as the roughness increases, head loss increases, you will need to increase the pump lift, and operation cost for power consumption increases, also greatly increased.
- Q: Are ductile iron pipes suitable for use in power plants?
- Ductile iron pipes are indeed appropriate for implementation in power plants. This material, known for its strength and durability, proves capable of enduring high pressure and temperature conditions, thus rendering it an ideal conduit for various fluids like water, steam, and chemicals within power plants. Moreover, ductile iron pipes exhibit outstanding resistance to corrosion, a critical feature for power plants frequently exposed to moisture and chemicals. Furthermore, these pipes boast an extended lifespan and necessitate minimal upkeep, thereby reducing the overall operational expenditures of power plants. All in all, ductile iron pipes provide a dependable and economically viable solution for fluid transportation within power plants.
- Q: Nodular cast iron, heat treatment process and so on
- High temperature graphitization annealing was adopted to eliminate the chill, and 900-950 and 2-4H obtained ferrite structure
- Q: What is the ductile cast iron pipe
- Should not have this conceptI make the ductile iron pipe, haven't heard of this thing only ductile iron pipe, ductile cast iron heard tube
- Q: Are ductile iron pipes available for cutting and are there any relevant specifications?
- Ductile iron pipes can be divided into cutting and non cutting pipes, the cutting pipe can be cut, and the cutting pipe is usually marked with "scissors" mark in the pipeline.
- Q: What are some common applications for ductile iron pipe?
- Ductile iron pipe, also known as DI pipe, is widely used in various applications due to its durability, strength, and corrosion resistance. Here are some common applications for ductile iron pipe: 1. Water Distribution: Ductile iron pipe is extensively used for the distribution of potable water. Its high tensile strength allows it to withstand high water pressure, making it ideal for water mains, water transmission lines, and water distribution networks. 2. Sewer Systems: Ductile iron pipe is commonly used in sewer systems due to its resistance to corrosion and its ability to handle high loads. It is often used for gravity sewer lines, force mains, and stormwater systems. 3. Industrial Applications: Ductile iron pipe finds applications in various industrial settings, including power plants, chemical plants, and refineries. It is used for the transportation of water, wastewater, and other fluids in these industries. 4. Irrigation Systems: Due to its strength and long lifespan, ductile iron pipe is suitable for irrigation systems, especially in agricultural areas. It is used to transport water for irrigation purposes, ensuring efficient water distribution in fields and farms. 5. Fire Protection Systems: Ductile iron pipe is commonly used for fire protection systems, including fire hydrants, fire sprinkler systems, and fire suppression systems. Its robustness and resistance to high pressure make it an excellent choice for reliable and effective fire protection. 6. Pumping Stations: Ductile iron pipe is often used in pumping stations, which are crucial for various water-related applications. It is employed in water intake systems, wastewater pumping stations, and water treatment plants to transport water and wastewater efficiently. 7. Municipal Infrastructure: Ductile iron pipe is widely used in municipal infrastructure projects, including road drainage systems, culverts, and bridge crossings. Its strength, durability, and resistance to external loads make it suitable for these applications. 8. Gas Distribution: Although more commonly used for water-related applications, ductile iron pipe is also used for the distribution of natural gas and other gases. It is preferred for gas distribution due to its resistance to corrosion and its ability to withstand high-pressure environments. Overall, ductile iron pipe has a wide range of applications and is preferred in situations that require strength, durability, and resistance to corrosion. Its versatility and reliability make it a popular choice for various infrastructure projects and industrial applications.
- Q: Can ductile iron pipe be used for wastewater treatment plant sludge dewatering?
- Yes, ductile iron pipe can be used for wastewater treatment plant sludge dewatering. Ductile iron pipe is known for its durability and corrosion resistance, making it suitable for applications in wastewater treatment plants. It can effectively handle the sludge dewatering process and provide reliable performance for long-term use.
- Q: Are ductile iron pipes resistant to frost heave?
- Ductile iron pipes are generally considered to be resistant to frost heave. Frost heave occurs when water in the ground freezes and causes the surrounding soil to expand and lift. Ductile iron pipes have high tensile strength and flexibility, which allows them to withstand the forces exerted by frost heave without cracking or breaking. Moreover, ductile iron pipes have a high resistance to impact and can handle significant external loads. This makes them particularly suitable for areas that experience freezing temperatures and potential frost heave. Additionally, the joints in ductile iron pipes are designed to provide a tight seal and prevent water infiltration, reducing the risk of freezing and subsequent frost heave. However, it is important to note that while ductile iron pipes are resistant to frost heave, they are not completely immune to it. Extreme temperature fluctuations, prolonged freezing conditions, or inadequate insulation can still pose a risk to the integrity of the pipes. Therefore, proper installation techniques, including appropriate bedding and backfilling materials, thermal insulation, and proper maintenance, are crucial to ensure the long-term performance and resistance of ductile iron pipes to frost heave.
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DUCTILE IRON PIPE K8 DN250
- 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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