DUCTILE IRON PIPE DN400 K7 CLASS

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 30000Tons m/month

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CNBM ductile iron pipe ranges from DN80-DN1600mm (T-Type, Class K9), effective length 6m, comply with ISO2531 Standard

Company Profile

CNBM International Corporation is the leading production base and renowned supplier of Ductile Iron Water Pipe systems of both potable and waste water in China. We are constantly looking to develop high quality products to ensure the longest service life and wonderful performance.

CNBM Pipelines regard quality as the essential factor leading to successful business. Every pipe is tested in accordance with BS EN545 (water application) or BS EN598 (sewer application). CNBM Pipelines products comply with and are tested according to the relevant European and International Standards. Our pipes are manufactured under the quality management system BS EN ISO 9001. After years of efforts, CNBM Pipelines has built up great reputation in terms of quality and service among customers worldwide

Product Introduction

CNBM ductile iron pipe ranges from DN80-DN1600mm (Tyton, T-Type, Class K7/K8/K9), effective length: 6m, complying with BS EN545/EN598/ISO2531/BS4772.

Specification& Payment terms

Internal lining: Pipes shall have an internal cement mortar lining in acc with ISO4179.

External coating: Pipes shall be externally coated with metallic zinc spray plus a further layer of resin painting to ISO8179.

Gasket: 100% SBR/NBR/EPDM gasket in accordance with ISO4633.

Packing: Pipes from DN100 to DN300 be bundled with steel belts, the others are in bulk.

Payment term: By 30% T/T advance payment + 70% Irrevocable L/C at sight.
Packing: In bulk vessel or in container.

Q: Can ductile iron pipes be used for water distribution networks in rural areas?: Ductile iron pipes are suitable for water distribution networks in rural areas due to their high strength and durability. These pipes are known for their ability to withstand external loads and pressure, making them ideal for underground installations. Additionally, they have excellent resistance to corrosion and can withstand harsh environmental conditions or agricultural activities. In rural areas, where the water distribution network may face challenging conditions, ductile iron pipes offer a reliable solution. They are less likely to crack or leak, ensuring a continuous water supply for rural communities. Moreover, these pipes have a long service life, often exceeding 100 years, making them a cost-effective choice that requires minimal maintenance and replacement. However, it is crucial to consider other factors such as the availability of ductile iron pipes, installation costs, and the technical expertise required for installation and maintenance. Local regulations and standards should also be followed to ensure compliance and safety. Overall, ductile iron pipes can provide a suitable and dependable option for water distribution networks in rural areas. They offer a long-lasting and efficient solution for delivering clean water to communities.

Q: What are the different types of ductile iron pipe joints?: There are several different types of ductile iron pipe joints commonly used in various applications. These joints are designed to provide a strong and reliable connection between pipes, ensuring efficient fluid transfer and preventing leaks. Some of the most common types of ductile iron pipe joints include: 1. Push-on Joint: This type of joint is easy to install, as it does not require any special tools or equipment. The spigot end of one pipe is inserted into the bell end of another pipe, creating a tight seal. A rubber gasket is usually used to enhance the joint's resistance to leaks. 2. Mechanical Joint: Mechanical joints are commonly used in water and wastewater applications. They consist of a gland, a rubber gasket, and a follower gland. The pipe ends are pushed into the gland, and the follower gland is tightened, compressing the rubber gasket and creating a secure connection. 3. Restrained Joint: Restrained joints are specifically designed to withstand high internal and external forces such as water pressure or soil loadings. These joints typically use a rubber gasket and a restraining mechanism, such as a bolt or wedge, to prevent the pipe from moving or separating under stress. 4. Flanged Joint: Flanged joints are commonly used in large diameter pipes or applications requiring frequent disassembly. Each pipe end is equipped with a flange, which is then bolted together with the use of gaskets to create a strong connection. Flanged joints provide easy access for maintenance or repairs. 5. Welded Joint: Welded joints involve heating the pipe ends and fusing them together to form a permanent connection. This type of joint is commonly used in high-pressure applications where a reliable and leak-free connection is crucial. Welded joints require skilled labor and specialized equipment. It is important to choose the appropriate type of joint based on the specific application, pipe size, and operating conditions to ensure the integrity and longevity of the ductile iron pipe system. Consulting with a professional engineer or pipe manufacturer can help determine the most suitable joint for a particular project.

Q: What's the difference between cast iron pipe and steel pipe?: Steel pipe is not only used to transport fluid and powder solid, exchange heat energy, and manufacture mechanical parts and containers, but also is an economic steel. It can reduce weight and save 20 to 40% of metal by using steel pipe to make building structure, network frame, prop and mechanical support. Moreover, it can realize factory mechanization construction. Using steel pipe to manufacture road bridge can not only save steel, simplify construction, but also greatly reduce the area of coating protective layer, save investment and maintenance cost.

Q: Can ductile iron pipes be used for underground oil and gas pipelines?: Yes, ductile iron pipes can be used for underground oil and gas pipelines. Ductile iron is a strong and durable material that can withstand high pressure and corrosive environments, making it suitable for such applications. Additionally, its flexibility allows it to accommodate ground movement and settle effectively, reducing the risk of damage to the pipelines.

Q: Can ductile iron pipes be used for stormwater management systems?: Indeed, stormwater management systems can utilize ductile iron pipes. Renowned for their robustness and lastingness, ductile iron pipes prove fitting for diverse purposes, including stormwater management. These pipes exhibit resistance against corrosion and possess the ability to endure immense pressure, rendering them perfect for transporting stormwater runoff. Moreover, ductile iron pipes boast an extended lifespan, thereby minimizing the necessity for frequent replacements and upkeep. All in all, when it comes to stormwater management systems, ductile iron pipes serve as a dependable option.

Q: Does the cast iron pipe need separate corrosion protection?: No, the inner and outer corrosion protection of the tube has been done.

Q: How does ductile iron pipe perform in areas with high soil movement?: Ductile iron pipe is known for its strength, durability, and flexibility, making it an ideal choice for areas with high soil movement. Unlike other types of piping materials, such as PVC or concrete, ductile iron pipe has the ability to withstand significant ground shifting without experiencing catastrophic failure. The inherent strength of ductile iron pipe allows it to resist the external forces exerted by soil movement, such as settlement, lateral movement, or ground heave. Its high tensile strength and ability to withstand bending stresses make it less susceptible to cracks, fractures, or leaks, ensuring the integrity of the pipeline system. Furthermore, ductile iron pipe has excellent deflection capabilities, meaning it can flex and accommodate ground movement without breaking. This flexural capacity enables the pipe to distribute the stress caused by soil movement along its length, reducing the concentration of forces at any specific point. In areas with high soil movement, ductile iron pipe also benefits from its corrosion resistance properties. The pipe is typically coated with a protective layer, such as cement-mortar lining or polyethylene encasement, which acts as a barrier against corrosive elements present in the soil. This protective coating helps to prevent damage and deterioration, ensuring the longevity and performance of the pipe even in challenging soil conditions. Overall, ductile iron pipe is highly recommended for areas with high soil movement due to its superior strength, flexibility, and corrosion resistance. Its ability to withstand ground shifting and distribute stress makes it a reliable choice for long-term performance and minimal maintenance requirements.

Q: What are the disadvantages of using ductile iron pipes?: Using ductile iron pipes in various applications comes with several drawbacks. Firstly, these pipes tend to be more expensive compared to other types like PVC or HDPE, which can be problematic for projects with budget constraints. Secondly, their relatively heavy weight makes transportation and installation more labor-intensive and time-consuming. This increases overall project costs, especially when specialized equipment and skilled workers are required. Another disadvantage is their susceptibility to corrosion. Exposure to environmental factors, like soil conditions and water chemistry, can lead to rust and scale formation on the inner and outer surfaces of the pipe. This reduces the pipe's lifespan and potentially affects water quality. Furthermore, ductile iron pipes can crack or break under certain conditions, especially when subjected to heavy loads or significant ground movement. This necessitates costly repairs or replacements, causing additional expenses and disruptions to the water supply. Lastly, ductile iron pipes have relatively low resistance to impact and abrasion compared to other materials. This makes them more vulnerable to damage from external forces, such as construction activities or accidental impacts, resulting in increased maintenance and repair costs. In conclusion, while ductile iron pipes have advantages like high tensile strength and durability, it is crucial to consider these disadvantages before deciding to use them in a specific project.

Q: Can ductile iron pipe be used for nuclear power plants?: Certain applications within nuclear power plants can utilize ductile iron pipe. Ductile iron pipe is renowned for its strength, durability, and resistance to corrosion, which makes it suitable for a variety of industrial and infrastructure projects. However, when considering nuclear power plants, specific factors must be taken into account. Safety and reliability of materials used in nuclear power plants are of utmost concern. Although ductile iron pipe meets many requirements, it may not be the optimal choice for critical applications involving the transportation of radioactive fluids or the handling of high-pressure or high-temperature systems within the plant. These particular applications often necessitate materials with exceptional resistance to corrosion, stress, and radiation damage. Materials such as stainless steel, nickel alloys, or even specialized materials like Inconel are commonly employed in nuclear power plants due to their superior properties. These materials offer enhanced resistance to radiation-induced embrittlement, corrosion, and high-temperature and high-pressure conditions. Therefore, while ductile iron pipe may find utility in non-critical applications within nuclear power plants, it is crucial to consult industry experts, engineers, and adhere to relevant nuclear safety regulations in order to determine the most suitable materials for specific applications within the plant.

Q: If the ductile iron pipe is broken, can we use rush repair?: These specifications are also based on the outer diameter of the tube. In daily life, we may also encounter a pipeline rupture, or when it is on the road to repair, excavator accidentally hit PE, PPR water supply and drainage pipeline, as long as a little, can be used to repair the pipeline repair section.

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