• DUCTILE  IRON PIPES  AND PIPE FITTINGS k8 CLASS DN1400 System 1
  • DUCTILE  IRON PIPES  AND PIPE FITTINGS k8 CLASS DN1400 System 2
DUCTILE  IRON PIPES  AND PIPE FITTINGS k8 CLASS DN1400

DUCTILE IRON PIPES AND PIPE FITTINGS k8 CLASS DN1400

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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: What is the expected fatigue life of ductile iron pipes under cyclic loading?
The fatigue life of ductile iron pipes under cyclic loading can vary due to factors such as the magnitude and frequency of the loading, material quality, pipe design and installation, and environmental conditions. Ductile iron possesses high strength and ductility, enabling it to withstand cyclic loading to a certain extent. However, like any material, it is susceptible to fatigue failure over time. Engineers commonly employ fatigue analysis and testing methods to estimate the expected fatigue life of ductile iron pipes. These methods involve subjecting representative samples of the pipes to controlled cyclic loading and determining the number of cycles required for failure. The results of these tests can then be used to extrapolate the expected fatigue life of the pipes under similar loading conditions. It is important to note that the expected fatigue life can significantly differ depending on the specific conditions and loading patterns experienced by the pipes in a given application. Therefore, it is crucial to consider operational demands, maintenance practices, and the overall structural integrity of the pipeline system. Additionally, adhering to appropriate design standards and guidelines, along with regular inspection and maintenance, can help enhance the fatigue life of ductile iron pipes. In conclusion, while providing a specific value for the expected fatigue life of ductile iron pipes under cyclic loading is challenging, engineers can estimate it through fatigue analysis and testing methods. Considering various factors and maintaining the pipes properly is essential to ensure their longevity and prevent potential failures.
Q: What are the different joint types available for ductile iron pipes?
There are several different joint types available for ductile iron pipes. These joints play a crucial role in ensuring the integrity and reliability of the pipeline system. 1. Push-on Joint: This is the most common type of joint used for ductile iron pipes. It involves a rubber gasket that is placed inside the bell end of the pipe, and the spigot end is then pushed into the bell, creating a tight seal. This joint is quick and easy to assemble and provides excellent resistance to soil movement and water pressure. 2. Mechanical Joint: This joint involves a gland and follower that are tightened around the spigot end of the pipe using bolts and nuts. The mechanical joint provides a strong and durable connection and is commonly used for larger diameter pipes or in applications where higher pressure or thrust loads are expected. 3. Flanged Joint: Flanged joints are used when the pipes need to be connected to other components, such as valves or fittings. The ends of the pipes are machined and fitted with flanges that are bolted together using gaskets to create a secure connection. Flanged joints are often used in industrial applications or where frequent disassembly is required. 4. Restrained Joint: Restrained joints are designed to withstand higher thrust forces and prevent the pipe from separating or pulling apart. They typically utilize a combination of mechanical joint components, such as bolts and glands, along with additional restraining elements like welded or bolted-on restraints. These joints are commonly used in high-pressure applications or where the pipeline is subjected to significant external forces. It is important to select the appropriate joint type based on factors such as pipeline design, operating conditions, and installation requirements. Consulting with a knowledgeable engineer or pipe manufacturer can help determine the most suitable joint type for a specific ductile iron pipe application.
Q: How are ductile iron pipes made?
The manufacturing of ductile iron pipes involves a specific process called centrifugal casting. In this process, molten iron is poured into a rotating mold, typically made of steel. The rotation of the mold creates centrifugal force, which evenly distributes the molten iron, resulting in high-quality pipes. To start the manufacturing process, a mixture of scrap iron, steel, and recycled material is melted at extremely high temperatures in a furnace. Once the molten iron reaches the desired temperature and consistency, it is ready to be cast into pipes. To prevent the molten iron from cooling too quickly, the rotating mold is preheated. This preheating also contributes to achieving a smooth surface finish on the pipes. The molten iron is then poured into the rotating mold through a central sprue. As the mold spins, centrifugal force forces the molten iron against the inner walls of the mold. This rapid solidification results in dense, strong, and corrosion-resistant pipes. The centrifugal force also helps remove impurities or slag from the inner surface of the pipe, further enhancing its quality. Once the casting process is complete, the mold is allowed to cool, and the pipe is removed. The pipes undergo various tests to ensure they meet the required quality standards. These tests include checking dimensions, mechanical properties, and surface finish. After passing the quality tests, ductile iron pipes are typically coated with a protective lining to prevent corrosion and extend their lifespan. The type of lining used, such as cement mortar, epoxy, or polyethylene, depends on the intended application of the pipes. In conclusion, the centrifugal casting process is utilized to manufacture ductile iron pipes. This process ensures the production of high-quality pipes that are strong, corrosion-resistant, and have a smooth surface finish.
Q: Can ductile iron pipe be used for marine and offshore applications?
Ductile iron pipe is suitable for marine and offshore applications due to its high strength and durability. It is well-known for its ability to withstand demanding environments and is particularly resistant to corrosion, including the corrosive effects of saltwater and harsh marine conditions. Moreover, its ductility allows for flexibility and resistance to cracking or fracturing under high-pressure conditions. These exceptional properties make ductile iron pipe a dependable choice for transporting fluids and gases in marine and offshore industries, such as offshore oil and gas platforms, marine structures, and underwater pipelines. To further enhance the corrosion resistance of ductile iron pipes in marine and offshore applications, it is essential to utilize proper coating and cathodic protection systems.
Q: How can the three pipes of ductile iron leak?
When the pipe connection of the three water leakage, first of all to see whether it is to do the pipe three links of the manufacturers, pressure did not reach, if it is. It is only the replacement, if not, with cast iron electrode welding, or socket connection half!
Q: How can stainless steel pipes and ductile iron pipes be joined?
Or with a gland type expansion joint, by tightening the pressure plate bolts, sealing pipe fittings and pipe wall, so as to achieve sealing, while retractable function
Q: Can ductile iron pipe be used for stormwater systems?
Ductile iron pipe is indeed suitable for stormwater systems. This material is widely utilized in various applications, including stormwater systems, due to its strength and durability. Its exceptional corrosion resistance makes it ideal for managing stormwater, which frequently contains debris and chemicals. Moreover, ductile iron pipe possesses impressive tensile strength, enabling it to withstand significant amounts of pressure and weight. Therefore, it is a dependable option for stormwater systems that may encounter substantial flow rates and occasional surges. Furthermore, ductile iron pipe is accessible in a variety of sizes and configurations, providing flexibility and adaptability when designing stormwater systems.
Q: Advantages and disadvantages of ductile iron pipes?
Ductile iron pipes are mainly heated and annealed by intermediate frequency furnace, and then made as lining cement. The cast iron pipe is not made of lining cement.
Q: How do ductile iron pipes perform in freeze-thaw cycles?
Ductile iron pipes perform exceptionally well in freeze-thaw cycles. The material properties of ductile iron, such as its high tensile strength and excellent impact resistance, make it highly resistant to the stresses caused by freeze-thaw cycles. Unlike other materials, ductile iron pipes can withstand the expansion and contraction that occurs during freezing and thawing without cracking or breaking. One of the key reasons why ductile iron pipes excel in freeze-thaw conditions is their ability to absorb and dissipate stresses. The high ductility of the material allows it to deform slightly under stress, thereby releasing the built-up pressure and preventing any damage to the pipe. This characteristic ensures that the pipes can handle the repeated cycles of freezing and thawing without compromising their structural integrity. Additionally, ductile iron pipes have a protective and durable coating, such as cement mortar lining or polyethylene encasement, which further enhances their resistance to freeze-thaw cycles. These coatings provide an additional layer of protection and prevent water from coming into direct contact with the iron, reducing the potential for corrosion. Furthermore, ductile iron pipes have a long service life, typically exceeding 100 years. This longevity is attributed to the material's inherent strength and resistance to various environmental factors, including freeze-thaw cycles. The pipes' ability to withstand these cycles without significant damage ensures the reliability and durability of the water distribution system, even in areas prone to freezing temperatures. In conclusion, ductile iron pipes are highly reliable and perform exceptionally well in freeze-thaw cycles. Their high tensile strength, impact resistance, ability to absorb stresses, and protective coatings make them a preferred choice for water distribution systems in regions with harsh winter conditions.
Q: Can ductile iron pipes be used for stormwater drainage systems?
Yes, ductile iron pipes can be used for stormwater drainage systems. Ductile iron pipes are known for their strength, durability, and corrosion resistance, making them suitable for various applications, including stormwater drainage. They can handle high volumes of water flow and withstand heavy traffic loads, making them a reliable choice for stormwater management. Additionally, ductile iron pipes have excellent joint performance, ensuring a watertight and secure connection, which is crucial for preventing leaks and maintaining the integrity of the stormwater drainage system. Overall, ductile iron pipes are a viable option for stormwater drainage systems due to their robustness, longevity, and ability to withstand the harsh conditions often associated with stormwater management.

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