DUCTILE IRON PIPES AND PIPE FITTINGS k8 CLASS DN1200

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 22 pc

Supply Capability:: 3000 pc/month

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Material : Ductile Cast Iron
Size Range : DN 80mm to DN 2000mm
Unit Effective Length : 6m or 5.7m
Manufacture Standard: ISO 2531:1998/ EN 545:2006/EN 598:2007
Annual capacity : 200,000 tons
Coating Exterior: Zinc 130g/m2 according to ISO 8179-1 and bitumen coating 70 microns.
Cement Interior: Portland Cement/ High Alumina Cement/ Sulphate Resisting Cement Lining according to ISO 4179
Special requirements on external coating and internal lining can be applied
We also provide accessories such as SBR/EPDM rubber gaskets, lubricant paste, pipe caps, PE sleeves, etc.

Additional Parts:

Each pipe is strictly inspected according to related standard to ensure permanently high performance.
Easy Installation at site and service free for life
Long Service Lifespan
Quotation will arrive you within 24hours once we get your inquiry.
We guarantee offering you a competitive price.
A copy of original inspection reports of pipes will be offered after shipment.
Photos of loading process will be sent to the customer after shipment effect.
We will follow-up the delivery progress after shipment effect and update to the customer on weekly basis.

Q: Are ductile iron pipes resistant to impact damage?: Ductile iron pipes possess remarkable strength and durability, rendering them resistant to impact damage. Their exceptional toughness and flexibility are a result of their unique composition, which includes a higher percentage of carbon and silicon. Consequently, ductile iron pipes can withstand external forces and impacts, such as those caused by heavy construction equipment or accidental incidents during installation or maintenance activities. Moreover, these pipes exhibit a high resistance to cracking and fracturing, thereby further enhancing their ability to endure impact damage. However, it should be noted that although ductile iron pipes are highly resistant to impact damage, they are not completely immune. Extreme or repeated impacts may still inflict damage, albeit to a lesser extent compared to other pipe types. Regular inspections and maintenance are crucial to detecting and addressing any potential impact damage to ensure the long-term integrity and performance of ductile iron pipes.

Q: How do ductile iron pipes handle water velocity?: Ductile iron pipes are capable of handling high water velocities due to their inherent strength and durability. The material's flexibility enables it to withstand the force and pressure created by fast-moving water, making it suitable for applications where high water velocity is a concern.

Q: How does ductile iron pipe perform in areas with high soil contamination?: Ductile iron pipe performs exceptionally well in areas with high soil contamination due to its inherent strength, durability, and corrosion resistance properties. The material used in manufacturing ductile iron pipes is highly resistant to chemical attack, making it suitable for handling various types of contaminated soils, including those with high levels of acids, alkalis, and other corrosive substances. The corrosion resistance of ductile iron pipes is primarily attributed to their protective internal and external linings, which are designed to prevent contact between the pipe material and the surrounding soil or fluids. These linings act as a barrier, preventing the penetration of corrosive elements and reducing the risk of pipe degradation or failure. Additionally, ductile iron pipes can be further protected by applying external coatings or cathodic protection systems, which enhance their resistance to soil contamination and extend their service life. In areas with high soil contamination, ductile iron pipes offer significant advantages over other materials such as steel or concrete. Their high strength allows them to withstand the external loads imposed by the contaminated soil, reducing the risk of structural failure or deformation. Moreover, the inherent flexibility of ductile iron allows it to absorb ground movements or settlement without compromising its integrity, making it a reliable choice for areas prone to soil instability or shifting. Furthermore, ductile iron pipes have a smooth internal surface, which minimizes friction and helps maintain efficient flow rates even in the presence of contaminants. This characteristic is particularly important in areas with high soil contamination, where debris or sedimentation can accumulate and hinder fluid flow. The smooth bore of ductile iron pipes reduces the risk of clogging and ensures the continuous and reliable conveyance of fluids, even in challenging soil conditions. Overall, ductile iron pipe is a highly suitable choice for areas with high soil contamination. Its excellent corrosion resistance, strength, flexibility, and smooth internal surface make it a reliable and durable solution for conveying fluids in these challenging environments.

Q: What is the expected hydraulic efficiency of ductile iron pipes?: The expected hydraulic efficiency of ductile iron pipes can vary depending on several factors including pipe diameter, roughness of the pipe surface, flow rate, and length of the pipe. However, ductile iron pipes are generally known to have excellent hydraulic efficiency. Ductile iron pipes have a smooth inner surface, which reduces frictional losses and allows for efficient water flow. The smoothness of the pipe surface helps minimize energy losses due to turbulence and resistance. Additionally, ductile iron pipes are designed to have a consistent and uniform internal diameter, which further enhances their hydraulic efficiency. Studies have shown that ductile iron pipes can achieve hydraulic efficiencies ranging from 85% to 95%. This means that a significant portion of the energy put into the system is effectively transferred to the water, resulting in minimal losses. It is important to note that the hydraulic efficiency of ductile iron pipes can be influenced by factors such as corrosion, scaling, and sediment buildup over time. Regular maintenance and proper cleaning can help maintain the hydraulic efficiency of ductile iron pipes. Overall, ductile iron pipes are considered to be highly efficient in terms of hydraulic performance and are widely used in water distribution systems due to their ability to deliver water with minimal energy losses.

Q: How do ductile iron pipes handle cyclic loading in offshore applications?: Ductile iron pipes are known for their exceptional strength and durability, making them a suitable choice for various applications, including offshore use. When it comes to handling cyclic loading in offshore environments, ductile iron pipes have several characteristics that contribute to their performance. Firstly, ductile iron pipes have a high resistance to fatigue failure. Fatigue failure occurs when a material experiences repeated cycles of stress, which can cause cracks to initiate and propagate over time. Ductile iron pipes are designed to withstand cyclic loading without compromising their structural integrity, thanks to their inherent ductility and ability to absorb and distribute stress effectively. Additionally, ductile iron pipes possess excellent impact resistance. Offshore environments are prone to dynamic and unpredictable forces, such as waves and currents, which can exert sudden and high impact loads on the pipes. The high impact resistance of ductile iron allows it to withstand these forces without deformation or fracture, ensuring the pipes remain intact and functional. Moreover, ductile iron pipes have a unique microstructure that enables them to resist corrosion. Offshore applications expose pipes to harsh environmental conditions, including saltwater, which can accelerate the corrosion process. However, the protective graphite matrix in ductile iron pipes acts as a barrier, preventing corrosive agents from reaching the underlying metal and significantly extending the pipes' service life. Furthermore, ductile iron pipes have a high load-carrying capacity. In offshore applications, pipes often need to support heavy loads, such as those from equipment, structures, or seabed settlements. Ductile iron's superior strength allows it to bear these loads effectively, maintaining the structural integrity and stability of the system. Lastly, ductile iron pipes offer ease of installation and maintenance. Their lightweight nature makes them easier to handle and transport during offshore operations. Additionally, their corrosion resistance minimizes the need for frequent maintenance, reducing downtime and costs associated with repairs and replacements. In conclusion, ductile iron pipes exhibit excellent performance in handling cyclic loading in offshore applications. Their resistance to fatigue failure, impact resistance, corrosion resistance, high load-carrying capacity, and ease of installation and maintenance make them a reliable and efficient choice for offshore environments.

Q: What are the typical joint sealing requirements for ductile iron pipes under pressure?: The typical joint sealing requirements for ductile iron pipes under pressure include the use of rubber gaskets and mechanical joints. These joints are designed to provide a watertight seal and prevent any leakage or seepage of the pressurized fluid. Additionally, proper cleaning and lubrication of the joints before assembly is crucial to ensure a secure and effective seal. Regular inspection and maintenance are also necessary to identify and address any potential joint sealing issues.

Q: How does ductile iron pipe perform in areas with high seismic activity?: Ductile iron pipe possesses exceptional strength and durability, making it an ideal choice for areas with high seismic activity. Seismic events, such as earthquakes, can exert significant stress and strain on pipelines, leading to rupture or failure. However, ductile iron pipe's unique material properties enable it to withstand these dynamic forces. One of the main advantages of ductile iron pipe in seismic regions is its remarkable flexibility. Unlike rigid materials like cast iron or steel, ductile iron exhibits a higher degree of elasticity. This allows it to deform and absorb energy during seismic events, dissipating the seismic forces and reducing the risk of pipe failure. Consequently, damage to the overall pipeline system is minimized. Furthermore, ductile iron pipe is manufactured with a high level of ductility, meaning it can undergo substantial deformation without fracturing. This characteristic is particularly crucial in seismic zones as it enables the pipe to endure ground movements and seismic waves without compromising its structural integrity. Additionally, the ability of ductile iron to absorb and redistribute stress helps prevent localized failures, ensuring the pipeline system's overall stability and reliability. Additionally, ductile iron pipe possesses excellent corrosion resistance, which is especially vital in high seismic areas where ground movement and subsequent water leaks can compromise the pipe's integrity. The corrosion resistance of ductile iron ensures the longevity and reliability of the pipeline system, minimizing the risk of leaks or failures during seismic events. In conclusion, ductile iron pipe performs exceptionally well in areas with high seismic activity due to its superior flexibility, high ductility, and corrosion resistance. These properties allow the pipe to withstand the dynamic forces generated during seismic events, providing a reliable and long-lasting solution for fluid transportation and ensuring the safety of communities in earthquake-prone regions.

Q: Ductile iron pipe, socket connection, pipe length, you can cut open it?: Yes, but the pipe that needs cutting is a cut off pipe with a scissors mark.

Q: Method for cutting large diameter ductile iron pipe: When the ratio of oxygen to acetylene is 1 to 1.2, the flame produced is called neutral flame, also known as normal flame. It consists of flame core, inner and outer flame: near the welding nozzle at the flame core, a bright white; followed by the flame, a blue purple, the highest temperature, about 3150 DEG C, from the front cone at 2 ~ 4mm, and the application of welding wire to the workpiece; the outer flame is orange red. Neutral flame is a flame commonly used in welding. It is used to weld low carbon steel, medium carbon steel, alloy steel, copper and aluminum alloy.

Q: Are ductile iron pipes resistant to sulfuric acid corrosion?: Generally, ductile iron pipes exhibit resistance to corrosion caused by sulfuric acid. Ductile iron, known for its strength and durability, contains a substantial amount of iron, which renders it less vulnerable to the harmful effects of sulfuric acid compared to materials like cast iron or steel. Nevertheless, it is crucial to consider that the degree of resistance can vary depending on factors such as the concentration and temperature of the sulfuric acid, as well as the duration of exposure. In scenarios where the acid is highly concentrated or the temperature is elevated, additional precautions may be required to guarantee long-term protection against sulfuric acid corrosion. These measures could include lining the pipes with suitable materials or employing corrosion inhibitors.

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