DUCTILE IRON PIPE 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: Are ductile iron pipes prone to external corrosion?
- External corrosion is not typically a concern for ductile iron pipes. This is because the material itself has protective properties. Ductile iron pipes are composed of a durable and strong material with a significant amount of graphite. The graphite serves as a natural barrier against external corrosion, effectively preventing rust and oxidation. Furthermore, ductile iron pipes are often coated with a layer of protection, such as cement mortar or polyethylene, to further enhance their resistance to corrosion. These coatings provide an additional safeguard, preventing contact between the pipe and any corrosive substances in the environment. It is important to note, however, that localized corrosion may still occur under certain conditions. Factors such as soil composition, moisture levels, and the presence of specific chemicals can potentially lead to the corrosion of ductile iron pipes in specific areas. Therefore, regular inspections and proper maintenance are necessary to promptly identify and address any potential corrosion concerns. In conclusion, ductile iron pipes are generally highly resistant to external corrosion. Nonetheless, like any other material, they require appropriate care and maintenance to ensure their long-term durability and reliability.
- Q: When the ductile iron pipe is pressed, the three links are always running out. What should be done?
- If the conventional backfill soil pressure, pipe fittings installed properly, the phenomenon will not appear.
- Q: Can ductile iron pipe be used in areas with high groundwater levels?
- Yes, ductile iron pipe can be used in areas with high groundwater levels. Ductile iron is known for its durability and corrosion resistance, making it suitable for underground applications including areas with high groundwater levels.
- Q: What are the typical joint sealing requirements for ductile iron pipes?
- The typical joint sealing requirements for ductile iron pipes include the use of rubber gaskets or mechanical joints. Rubber gaskets are commonly used for joint sealing in ductile iron pipes as they provide a reliable and flexible seal. These gaskets are typically made of synthetic rubber materials that are resistant to water, chemicals, and other environmental factors. Mechanical joints, on the other hand, are another common method of joint sealing in ductile iron pipes. These joints consist of a mechanical device that connects the pipes together and provides a watertight seal. Mechanical joints are typically designed to allow for some movement and flexibility, which is especially important in areas where ground movement or settlement may occur. In addition to using rubber gaskets or mechanical joints, it is also important to properly clean and prepare the pipe surfaces before making the joint. This may involve removing any dirt, debris, or old joint material from the pipe ends to ensure a proper seal. The joint should then be assembled according to the manufacturer's instructions, ensuring that the gasket or mechanical joint is correctly positioned and tightened to the recommended torque. Overall, the typical joint sealing requirements for ductile iron pipes involve the use of rubber gaskets or mechanical joints, proper cleaning and preparation of the pipe ends, and following the manufacturer's instructions for assembly. These requirements are essential for ensuring a watertight and durable joint that can withstand the pressures and environmental conditions commonly encountered in ductile iron pipe systems.
- Q: How are leaks repaired in ductile iron pipe?
- Leaks in ductile iron pipe are typically repaired by cleaning and preparing the area around the leak, applying a suitable sealant or epoxy, and then securely fastening a repair clamp over the affected area. This clamp provides a tight seal and prevents any further leakage.
- Q: How does ductile iron pipe perform in areas with high ground movement?
- Ductile iron pipe performs well in areas with high ground movement due to its inherent flexibility and strength. Its ability to bend and absorb ground movements makes it less susceptible to cracking or breaking compared to other rigid pipe materials. Additionally, the material's high tensile strength and durability ensure that it can withstand the stresses caused by ground movement without compromising its structural integrity.
- 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 carrying water in both residential and commercial structures. They have a long lifespan, high pressure rating, and can withstand various environmental conditions, making them a reliable choice for water distribution systems.
- Q: Are ductile iron pipes resistant to hydrogen sulfide corrosion?
- Yes, ductile iron pipes are resistant to hydrogen sulfide corrosion due to their high resistance to chemical corrosion and their protective inner lining that prevents contact between the pipe material and the corrosive elements.
- Q: What are the different types of joints available for ductile iron pipe?
- Ductile iron pipes offer various types of joints, each with distinct advantages and suitability for different uses. Here are some of the most common joint options available: 1. Mechanical Joints: These joints create a watertight seal using a mechanical joint gland and rubber gasket. They are easy to install and allow for quick disassembly if needed. 2. Push-on Joints: This joint type involves compressing a rubber gasket when inserting the pipe into the fitting. It provides a reliable seal and requires no special tools for installation. 3. Restrained Joints: Designed to withstand higher internal pressures, restrained joints use a combination of mechanical or push-on joints along with additional restraints like thrust blocks or harnesses to prevent pipe separation. 4. Flanged Joints: Flanged joints connect two pipes using flanges and bolts. They are commonly used when frequent disassembly is required or when connecting to different types of pipes or equipment. 5. Welded Joints: In certain cases, ductile iron pipes can be welded together to create a strong and permanent connection. Welded joints are typically used in larger diameter pipes or specialized applications requiring high strength. When selecting the appropriate joint type for ductile iron pipes, it is essential to consider factors such as the pipe's application, pressure rating, and installation requirements.
- Q: Can ductile iron pipe be used for stormwater systems?
- Yes, ductile iron pipe can be used for stormwater systems. Ductile iron pipe is a strong and durable material that is commonly used for various applications, including stormwater systems. It has excellent corrosion resistance, making it suitable for handling stormwater, which often contains debris and chemicals. Ductile iron pipe also has high tensile strength and can withstand heavy loads and pressures, making it a reliable choice for stormwater systems that may experience significant flow rates and occasional surges. Additionally, ductile iron pipe is available in various sizes and configurations, allowing for flexibility and adaptability in designing stormwater systems.
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DUCTILE IRON PIPE K8 DN300
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
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