Ductile Iron Pipe High Quality ISO2531:1998 DN80

Ductile Iron Pipe High Quality ISO2531:1998 DN80

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 999 m

Supply Capability:: 9999 m/month

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1,Ductile Iron Pipe Description :
1) Pipes confirm to ISO2531,K9 class,T type joint,6m long,with inside cements lining conform to ISO4179, outside Zinc spraying(130g/m2) and bitumen coating(70μm) conform to ISO8179.
2) Pipe ends: Spigot and socket ends, with 100% SBR rubber gaskets accoding to ISO4633
3) we can do third party inspection according to customer's request.
4) Our products have been sold to many international market, such as Middle East and South East Asia and Africa.
2,Main Features of the Ductile Iron Pipe:
•High yield strength
•High tensile Strength
•High corrosion resistance
•Pressure Resistence
•Satisfy the highest hygienic standards
3,Ductile Iron Pipe Images:

Ductile Iron Pipe High Quality ISO2531:1998 DN80

4.FAQ:
We have organized several common questions for our clients，may help you sincerely：
Q: Why would you choose ductile iron pipe rather than other pipe materials?
A:The reasons are obvious for that not only ductile iron pipe possesses the inherent strength and flexibility of ductile iron, combined with proven corrosion protection systems, but also the cost savings can be achieved from design to installation and commissioning.
Q:Why can you guarantee the inner of pipes can’t be corroded?
A: High alumina cement mortar lining and sulphate-resistant cement mortar lining. These two special linings are applicable to inner anti-corrosion for sewage pipes, improving resistance to erosion of the sewage components.

Q: What is the cost of ductile iron pipes compared to other materials?: The cost of ductile iron pipes compared to other materials can vary depending on several factors such as the size, length, and application of the pipes. In general, ductile iron pipes tend to be more expensive than other materials such as PVC or HDPE (high-density polyethylene) pipes. This is primarily due to the superior strength, durability, and longevity offered by ductile iron pipes. While the initial cost of ductile iron pipes may be higher, they often provide a more cost-effective solution in the long run due to their extended lifespan. Ductile iron pipes have a life expectancy of over 100 years, making them a highly reliable and low-maintenance choice for water, sewage, and gas distribution systems. This longevity reduces the need for frequent replacements, repairs, and associated costs. Furthermore, ductile iron pipes are known for their exceptional resistance to external loads, pressure, and corrosion. This makes them well-suited for a wide range of applications, including high-pressure water and gas transmission, industrial pipelines, and sewer systems. The inherent strength of ductile iron pipes allows for thinner walls, resulting in reduced material and installation costs when compared to other materials. It is important to note that the cost of ductile iron pipes can also be influenced by market conditions, transportation costs, and availability of raw materials. Therefore, it is always advisable to consult with suppliers and conduct a cost-benefit analysis before making a decision.

Q: What are the typical applications for ductile iron pipes?: Ductile iron pipes are commonly used for a variety of applications including water and sewage transportation, irrigation systems, fire protection systems, and industrial processes. They are also suitable for underground and aboveground installations due to their durability, corrosion resistance, and ability to handle high pressure and heavy loads.

Q: How are ductile iron pipes protected against external corrosion?: Ductile iron pipes are protected against external corrosion through a combination of manufacturing processes and external coatings. The first line of defense is the inherent corrosion resistance of ductile iron itself. The iron is treated with a special alloying element, typically magnesium, which forms a protective layer on the surface of the pipe. This layer acts as a barrier against corrosion and helps to extend the lifespan of the pipe. In addition to the corrosion-resistant properties of the iron, ductile iron pipes are also externally coated with protective materials. One common method is to apply a layer of asphaltic or bituminous coating to the pipe's surface. This coating acts as a barrier against moisture and corrosive substances in the soil, preventing them from coming into contact with the iron. It also provides a layer of insulation, reducing the likelihood of galvanic corrosion. Another method of external corrosion protection is the use of fusion-bonded epoxy (FBE) coatings. FBE is a thermosetting resin that is applied to the surface of the pipe and then heat-cured to form a strong and durable coating. This coating provides excellent resistance against corrosion, abrasion, and impact, making it a popular choice for ductile iron pipes in harsh environments. In some cases, additional protective measures such as cathodic protection systems may be employed. These systems use electric currents to counteract the corrosion process by supplying electrons to the pipe's surface. This helps to prevent corrosion from occurring, especially in areas where the coating may have been damaged or compromised. Regular maintenance and inspection are also crucial in ensuring the long-term protection of ductile iron pipes against external corrosion. This includes periodic cleaning, repair of any coating damages, and monitoring the integrity of the protective layers. Overall, the combination of the inherent corrosion resistance of ductile iron, external coatings, and maintenance practices ensures that ductile iron pipes are well-protected against external corrosion, allowing them to have a longer lifespan and deliver reliable performance in various applications.

Q: What are the typical installation methods for ductile iron pipe?: The typical installation methods for ductile iron pipe involve several steps to ensure proper installation and functionality. Firstly, the trench is excavated to the required depth and width, accounting for the pipe diameter and bedding material. The bottom of the trench is then carefully prepared by removing any sharp objects or debris that could potentially damage the pipe. Next, a layer of suitable bedding material such as sand or fine gravel is placed evenly along the bottom of the trench to provide support and prevent any point loading on the pipe. The bedding material is compacted to ensure stability and eliminate any voids that could cause the pipe to settle or shift over time. After the bedding is in place, the ductile iron pipe is carefully lowered into the trench, taking precautions to prevent any damage to the pipe's protective coating. The pipes are then aligned and supported at regular intervals using appropriate pipe supports or blocks. Once the pipe is properly aligned, the joints are assembled by applying a lubricant and inserting a rubber gasket into the bell end of the pipe. The spigot end of the adjacent pipe is then inserted into the bell end, creating a secure and watertight seal. After the joints are assembled, the backfilling process begins. Backfill material, typically a combination of native soil and select backfill, is carefully placed around the pipe in layers and compacted to provide stability and prevent any voids. The backfilling process is carried out gradually, allowing for proper compaction and avoiding excessive pressure or damage to the pipe. Finally, the trench is fully backfilled and compacted, ensuring that the pipe is adequately supported and protected from external forces. Surface restoration is then performed to restore the area to its original condition, minimizing any disruption caused by the installation process. It is important to note that these installation methods may vary depending on project specifications, local regulations, and engineering recommendations. Therefore, it is essential to consult the manufacturer's guidelines and work closely with qualified professionals to ensure proper installation of ductile iron pipe.

Q: Can ductile iron pipes be used for both water and wastewater applications?: Yes, ductile iron pipes can be used for both water and wastewater applications. Ductile iron pipes are known for their strength and durability, making them suitable for conveying both water and wastewater. They have excellent corrosion resistance and can withstand high pressures, making them a reliable choice for various applications in the water and wastewater industry.

Q: How are ductile iron pipes protected against internal corrosion?: Ductile iron pipes are protected against internal corrosion through a combination of various preventive measures. One of the primary methods is the application of a protective coating on the inner surface of the pipe. This coating acts as a barrier between the pipe and the transported fluid, preventing direct contact and minimizing the chances of corrosion. Another common method used is the application of a cement mortar lining. This lining further enhances the protective barrier, reducing the likelihood of corrosion even in aggressive environments. The cement mortar also provides a smooth surface, reducing friction and improving the flow of water or other fluids through the pipe. In addition to coatings and linings, ductile iron pipes are often designed with corrosion-resistant alloys or additives. These alloys, such as zinc or epoxy, are added during the manufacturing process and provide an extra layer of protection against internal corrosion. They act as sacrificial anodes, corroding over time to protect the underlying iron from degradation. Regular maintenance and inspection are also crucial in protecting ductile iron pipes against internal corrosion. Monitoring the condition of the protective coatings, identifying any signs of degradation or damage, and promptly addressing any issues are essential to ensure the long-term integrity of the pipes. Overall, a combination of protective coatings, cement mortar linings, corrosion-resistant alloys, and regular maintenance efforts work together to effectively protect ductile iron pipes against internal corrosion, extending their lifespan and ensuring the safe transportation of fluids.

Q: How does ductile iron pipe perform in corrosive soils?: Ductile iron pipe performs exceptionally well in corrosive soils due to its inherent corrosion resistance properties. The pipe is made from a unique composition of iron, carbon, and other elements that enhance its durability and resistance to corrosion. One of the key features of ductile iron pipe is its protective lining. The interior of the pipe is lined with either cement mortar or a special epoxy coating, which acts as a barrier between the corrosive soil and the pipe itself. This lining protects the iron from coming into direct contact with the soil, preventing corrosion. Additionally, ductile iron pipe has a higher resistance to external corrosion when compared to other materials like steel. It can withstand the chemical reactions caused by acidic or alkaline soils and remains unaffected by the corrosive elements present in the ground. This makes it an ideal choice for installation in areas with highly corrosive soils. Furthermore, ductile iron pipe has a long service life, further contributing to its performance in corrosive soils. The durable nature of the pipe and its resistance to corrosion ensure that it can withstand the challenges posed by corrosive soils for several decades without significant degradation. In conclusion, ductile iron pipe excels in corrosive soils due to its protective lining, resistance to external corrosion, and long service life. Its ability to withstand the harsh conditions presented by corrosive soils makes it a reliable and durable choice for various applications, including water distribution, sewage systems, and industrial pipelines.

Q: How do ductile iron pipes handle cyclic loading in offshore applications?: Ductile iron pipes possess remarkable strength and durability, rendering them suitable for a wide range of applications, including offshore usage. When it comes to dealing with cyclic loading in offshore settings, ductile iron pipes boast various characteristics that contribute to their exceptional performance. To begin with, ductile iron pipes demonstrate a high resistance to fatigue failure. Fatigue failure occurs when a material undergoes repeated stress cycles, leading to the initiation and propagation of cracks over time. Ductile iron pipes are specifically designed to endure cyclic loading without compromising their structural integrity. This is made possible by their inherent ductility and ability to effectively absorb and distribute stress. Furthermore, ductile iron pipes exhibit outstanding impact resistance. Offshore environments are prone to dynamic and unpredictable forces, such as waves and currents, which can exert sudden and intense loads on the pipes. The superior impact resistance of ductile iron allows it to withstand these forces without experiencing deformation or fractures, ensuring that the pipes remain intact and fully functional. Moreover, ductile iron pipes possess 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 present in ductile iron pipes acts as a barrier, preventing corrosive agents from reaching the underlying metal. As a result, the service life of the pipes is significantly prolonged. Additionally, ductile iron pipes have a high load-carrying capacity. In offshore applications, pipes often need to support heavy loads, such as those exerted by equipment, structures, or seabed settlements. The exceptional strength of ductile iron enables it to effectively bear these loads, ensuring the structural integrity and stability of the entire system. Lastly, ductile iron pipes offer ease of installation and maintenance. Their lightweight nature makes them easier to handle and transport during offshore operations. Furthermore, their corrosion resistance reduces the need for frequent maintenance, minimizing downtime and reducing the costs associated with repairs and replacements. In conclusion, ductile iron pipes exhibit excellent performance when it comes to 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 dependable and efficient choice for offshore environments.

Q: Can ductile iron pipes be used for road and highway drainage?: Yes, ductile iron pipes can be used for road and highway drainage. Ductile iron pipes have excellent strength and durability, making them suitable for handling the heavy loads and traffic associated with road and highway drainage systems. Additionally, they have high resistance to corrosion and provide a smooth internal surface, minimizing the chances of blockages and ensuring efficient water flow.

Q: Can ductile iron pipes be used for water treatment facilities?: Yes, ductile iron pipes can be used for water treatment facilities. Ductile iron pipes are known for their strength, durability, and corrosion resistance, making them suitable for transporting water in various treatment processes such as filtration, disinfection, and distribution. Their ability to withstand high pressures and external loads makes them a reliable choice for water treatment facilities.

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