DUCTILE IRON PIPE AND PIPE FITTINGS K9 CLASS DN500

DUCTILE IRON PIPE AND PIPE FITTINGS K9 CLASS DN500

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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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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 internal lining used in ductile iron pipes?: Ductile iron pipes commonly employ a cement mortar lining as their internal coating. This lining is carefully applied to safeguard the pipe from corrosion and abrasion. By doing so, it effectively prolongs the pipes' lifespan and enables them to endure the demanding conditions of water or sewage transportation. Moreover, this lining enhances the hydraulic efficiency of the pipes by diminishing friction and averting the development of biofilms or deposits on the inner surface. In essence, incorporating a cement mortar lining into ductile iron pipes is crucial for preserving the integrity and functionality of the infrastructure.

Q: Can ductile iron pipes be used for underground fuel storage systems?: Underground fuel storage systems can utilize ductile iron pipes, which offer superior strength, durability, and flexibility compared to traditional cast iron pipes. These properties render ductile iron pipes suitable for a range of applications, including underground fuel storage. An important advantage of ductile iron pipes is their resistance to corrosion, a crucial factor for underground storage systems that may encounter various fuels and chemicals. Furthermore, their high tensile strength and resilience enable them to withstand external pressure and loading, ensuring the integrity and safety of the underground storage system. Additionally, ductile iron pipes boast a long lifespan, typically lasting for several decades. This longevity makes them a cost-effective option for underground fuel storage systems, as they can bear the weight of stored fuel and potential ground movements while maintaining the structural integrity of the system over time. Nevertheless, it is worth noting that the appropriateness of ductile iron pipes for underground fuel storage systems may depend on other factors, such as local regulations, soil conditions, and the specific fuel being stored. To ensure compliance and safety, it is always advisable to seek guidance from professionals and adhere to relevant guidelines when designing and installing such systems.

Q: What are the differences between ductile cast iron pipes and centrifugal ductile iron pipes?: Centrifugal casting is a casting method. Ball milling cast iron pipe is a kind of material.

Q: How are ductile iron pipes protected against external soil loads?: Ductile iron pipes are protected against external soil loads through several methods. One of the primary methods is the use of a protective coating on the exterior surface of the pipe. This coating acts as a barrier between the iron pipe and the surrounding soil, preventing direct contact and reducing the risk of corrosion. Another method of protection is the use of trench backfill materials. The soil used for backfilling is carefully selected and compacted to provide adequate support and load distribution for the pipe. This helps to minimize the stress and pressure exerted on the pipe by the surrounding soil. Additionally, the design and installation of the pipe system play a crucial role in protecting ductile iron pipes against external soil loads. The pipes are typically laid in a properly engineered trench, which includes appropriate bedding and backfilling techniques to ensure stability and minimize the potential for damage. Furthermore, the use of proper pipe jointing techniques is essential for protecting against external soil loads. Joints are often designed to be flexible, allowing for some movement and accommodating external loads. This helps to distribute the stress along the length of the pipe and prevents concentrated pressure points that could lead to failure. Overall, a combination of protective coatings, appropriate backfill materials, proper installation techniques, and joint design contribute to the effective protection of ductile iron pipes against external soil loads. This ensures the longevity and reliability of the pipe system, even in challenging soil conditions.

Q: What effect does magnesium play in nodular cast iron?: Magnesium can be graphite precipitated in spherical form.But the specific mechanism is not clear, and now it is still debated in the academic circles.In addition, magnesium and sulfur generate MgS, which removes S from molten iron, which impedes the formation of spheroidal graphite.Therefore, Mg has two functions to eliminate the influence of S on Nodular Iron and promote the precipitation of graphite in spherical form.

Q: Are ductile iron pipes suitable for underground river crossings?: Yes, ductile iron pipes are suitable for underground river crossings. Ductile iron is a strong and durable material that can withstand the external pressures and loads experienced during such crossings. It has excellent tensile strength, impact resistance, and durability, making it ideal for underground applications where the pipes may be subjected to high water pressure, ground movement, or other environmental factors. Additionally, ductile iron pipes have a long service life and are resistant to corrosion, which is important when dealing with water crossings. Their ability to withstand these conditions makes them a reliable choice for underground river crossings.

Q: Are ductile iron pipes suitable for wastewater systems?: Indeed, wastewater systems can utilize ductile iron pipes. Ductile iron, renowned for its robustness and durability, exhibits resistance against corrosion and can endure the arduous conditions typically encountered in wastewater systems. Its exceptional tensile strength enables it to withstand the pressure and stress resulting from the movement of wastewater. Furthermore, the installation of ductile iron pipes is effortless, and their longevity ensures a cost-effective solution for wastewater systems. In conclusion, ductile iron pipes represent a dependable and appropriate choice for transporting wastewater in diverse applications.

Q: How are ductile iron pipes protected against external damage?: Ductile iron pipes are protected against external damage through a combination of various protective measures. One common method used is the application of a protective coating on the external surface of the pipe. This coating acts as a barrier, preventing the direct contact of the pipe with corrosive elements in the surrounding environment. The coating can be made of materials such as epoxy, polyurethane, or zinc, which provide excellent resistance against corrosion, abrasion, and chemical attacks. Additionally, ductile iron pipes can be further protected by encasing them in a concrete or cement mortar lining. This lining provides an extra layer of protection, reducing the chances of physical damage due to external impacts or soil movement. The concrete or cement mortar lining also helps to improve the pipe's hydraulic performance by reducing friction and maintaining a smooth flow of water or other fluids. Furthermore, ductile iron pipes are often installed with proper bedding and backfilling techniques. This involves using suitable materials such as sand or gravel to support and stabilize the pipe, minimizing the risk of external damage caused by uneven ground settlement or heavy loads. Adequate compaction of the backfill material is crucial to ensure the long-term integrity and stability of the pipe. Regular inspection and maintenance are also essential for protecting ductile iron pipes against external damage. Periodic inspections can identify any signs of corrosion, coating degradation, or physical damage, allowing for timely repairs or replacement before significant issues arise. Additionally, proper cathodic protection systems can be employed to prevent corrosion by applying an electric current that counteracts the electrochemical reactions occurring on the pipe's surface. In summary, ductile iron pipes are protected against external damage through the application of protective coatings, concrete or cement mortar linings, proper bedding and backfilling techniques, and regular inspections and maintenance. These measures collectively ensure the durability, longevity, and reliable performance of ductile iron pipes in various environments and applications.

Q: What material is ductile cast iron 235A?: Ductile iron is a pig iron

Q: Are ductile iron pipes resistant to sulfuric acid corrosion?: Yes, ductile iron pipes are generally resistant to sulfuric acid corrosion. Ductile iron is a strong and durable material that contains a high percentage of iron, making it less susceptible to the corrosive effects of sulfuric acid compared to other materials like cast iron or steel. However, it is important to note that the level 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 highly concentrated or elevated temperature environments, additional protective measures such as lining the pipes with suitable materials or employing corrosion inhibitors may be necessary to ensure long-term resistance to sulfuric acid corrosion.

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