DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN400

DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN400

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 32 pc

Supply Capability:: 3000 pc/month

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Duct Iron Pipe DI Pipe ISO 2531 DN 80-2000mm PN 16

· 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 microbiologically induced corrosion?: Generally, ductile iron pipes exhibit resistance to microbiologically induced corrosion (MIC). Ductile iron, a variant of cast iron, undergoes treatment involving the addition of magnesium to enhance its strength and flexibility. Consequently, this process forms a protective layer on the iron's surface, rendering it less prone to corrosion initiated by microorganisms. MIC arises when specific bacteria, fungi, or other microorganisms interact with the metal surface of pipes, producing corrosive byproducts. Nevertheless, ductile iron generally resists MIC due to the presence of the protective layer, which acts as a barrier, thus preventing direct contact between microorganisms and the metal surface. Furthermore, ductile iron pipes are often coated with cement mortar or other protective coatings, further bolstering their corrosion resistance. These linings supply an additional layer of defense against microorganisms, reducing the likelihood of MIC. Nevertheless, it is crucial to note that the extent of resistance to MIC can vary depending on the specific conditions and environment in which the pipes are installed. Factors such as water quality, temperature, and the presence of certain microorganisms can influence the susceptibility of ductile iron pipes to MIC. Consequently, it is imperative to consider these factors and implement appropriate measures to prevent MIC. This may include regularly monitoring water quality, maintaining the pipes properly, and employing corrosion inhibitors or biocides when necessary.

Q:Are ductile iron pipes suitable for use in cooling water systems?: Yes, ductile iron pipes are suitable for use in cooling water systems. They offer excellent strength, durability, and corrosion resistance, making them ideal for transporting water at varying temperatures. Additionally, their flexibility allows them to withstand pressure and temperature changes, ensuring long-lasting and reliable performance in cooling water applications.

Q:How do ductile iron pipes handle internal scale buildup?: Ductile iron pipes are known for their excellent resistance to internal scale buildup. The material used in ductile iron pipes is highly resistant to corrosion, which helps prevent the formation of scale deposits. Additionally, the smooth internal surface of these pipes minimizes the chances of scale adherence. In the rare event that scale does start to form, ductile iron pipes handle it quite well. The inherent strength and durability of ductile iron allow it to withstand the pressure exerted by the scale buildup. The pipes can continue to function efficiently even with some internal scaling, ensuring a reliable water flow. However, it is important to note that regular maintenance and periodic cleaning are still necessary to prevent excessive scale accumulation and ensure optimal pipe performance. This can be done through various methods such as mechanical cleaning, chemical treatments, or high-pressure water jetting. Proper maintenance practices can help prolong the lifespan of ductile iron pipes and minimize any potential issues related to internal scale buildup.

Q:The difference between ductile iron pipe and steel pipe used in pipe jacking: The casting processes of nodular cast iron pipes are continuous casting, hot die casting and water-cooled centrifugal casting, in which water cooling is the most advanced process in the world,

Q:Can ductile iron pipe be used in areas with high groundwater levels?: Areas with high groundwater levels can indeed utilize ductile iron pipe. This type of pipe is renowned for its robustness and sturdiness, which renders it appropriate for a wide range of purposes, including areas with high groundwater levels. Its resistance to corrosion ensures that it remains highly impervious to the damaging impact of groundwater, thereby guaranteeing enduring efficiency and dependability. Furthermore, the flexible joints of ductile iron pipe enable it to endure ground shifts and settlements caused by fluctuating groundwater levels. As a result, it represents a suitable choice for regions with high groundwater levels, offering a dependable solution for water distribution systems and other subterranean applications.

Q:How much water seepage is allowed in the water pressure test for water hose DN300?: Test method: metal composite pipe and water pipe system 10min observed in the test pressure, the pressure drop should be no more than 0.02MPa, and then reduced to working pressure check should be no leakage of plastic pipe; water supply system should be in the test pressure regulator 1H, pressure drop shall not exceed 0.05MPa, then stabilized at 1.15 times the working pressure of the state under 2h, the pressure drop shall not exceed 0.03MPa, and check each connection must not leak.

Q:What is the expected sound transmission loss of ductile iron pipes?: The expected sound transmission loss of ductile iron pipes can vary depending on various factors such as pipe thickness, diameter, and installation conditions. However, ductile iron pipes are generally known for their good acoustic performance and can provide significant sound reduction, especially compared to other types of pipes like PVC or cast iron.

Q:How does ductile iron pipe perform in sandy or unstable soils?: Ductile iron pipe performs exceptionally well in sandy or unstable soils due to its inherent strength and flexibility. The composition of ductile iron, which includes a combination of iron, carbon, and small amounts of other elements, gives it superior mechanical properties compared to other types of pipes. In sandy soils, where there is a risk of pipe movement and deformation due to shifting ground, ductile iron's high tensile strength and elongation characteristics allow it to withstand the pressure and stress without fracturing or breaking. Its flexibility enables it to accommodate the movement and settlement of the surrounding soil, reducing the risk of pipe failure. Moreover, ductile iron pipe's resistance to corrosion makes it highly suitable for installation in sandy soils. The protective lining and coatings applied to the interior and exterior of the pipe prevent the soil's corrosive elements from attacking the iron, ensuring long-term durability and reliability. In unstable soils with varying compaction levels or weak load-bearing capacity, ductile iron pipe's sturdy construction provides stability and support. Its robustness allows it to distribute the loads evenly, minimizing the risk of pipe deflection or collapse. Additionally, ductile iron pipe's joint design and sealing methods, such as push-on joints or mechanical joints with rubber gaskets, offer excellent leak resistance and prevent soil infiltration, further enhancing its performance in sandy or unstable soils. Overall, ductile iron pipe's combination of strength, flexibility, corrosion resistance, and reliable joint systems make it an ideal choice for applications in sandy or unstable soils, providing a long-lasting and efficient solution for water and wastewater transmission.

Q:Are ductile iron pipes suitable for desalination plants?: Ductile iron pipes are the perfect fit for desalination plants. These plants typically need to move large amounts of water, and using ductile iron pipes has numerous advantages that make them an ideal choice for this purpose. To begin with, ductile iron pipes possess exceptional strength and durability, which are crucial for withstanding the high pressure and corrosive nature of desalinated water. They can easily handle the rapid flow rates and maintain their structural integrity over long distances, ensuring a dependable and efficient water transportation system. Furthermore, ductile iron pipes exhibit excellent resistance to corrosion, a key factor in desalination plants where the water often contains high levels of salt and other minerals. The corrosion-resistant properties of ductile iron pipes ensure that the water quality remains uncompromised and that the pipes have a long service life, ultimately reducing the costs associated with maintenance and replacement. Moreover, ductile iron pipes have a remarkable ability to withstand impacts, making them particularly valuable in desalination plants where pipelines may be exposed to external forces or accidental damage. By being able to endure such impacts, the risk of leaks is significantly reduced, ensuring a steady and uninterrupted supply of water. Additionally, compared to materials like stainless steel or PVC, ductile iron pipes are more cost-effective. They come with a lower initial cost and require less maintenance, making them the more economical choice for desalination plants. In conclusion, ductile iron pipes are undoubtedly the perfect fit for desalination plants due to their strength, durability, resistance to corrosion and impacts, as well as their cost-effectiveness. These pipes are well-equipped to meet the demanding requirements of desalination plants, providing a reliable and efficient water transportation system.

Q:Are ductile iron pipes resistant to abrasion or wear?: Yes, ductile iron pipes are highly resistant to abrasion or wear due to their inherent strength and durability.

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