Ductile Iron Pipe ISO 2531 / EN 545 K9,

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 200

Supply Capability:: 9999 /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

·Anti-corrosion

·Installation is convenient

·Satisfy the highest hygienic standards

3,Ductile Iron Pipe Images:

Ductile Iron Pipe ISO 2531 / EN 545 K9,

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:Can ductile iron pipes be used for hydropower projects?: Certainly, ductile iron pipes are applicable for hydropower projects. Renowned for their robustness, resilience, and ability to withstand corrosion, these pipes are well-suited for numerous purposes, including hydropower projects. They possess the capability to handle substantial water pressure, rendering them perfect for transporting water to turbines or other power-generating machinery. Moreover, their extended lifespan minimizes the need for maintenance and replacements, resulting in reduced costs in the long run. Consequently, incorporating ductile iron pipes into hydropower projects enhances the overall efficiency and dependability of the system.

Q:Can ductile iron pipe be used for cooling water systems?: Certainly, cooling water systems can utilize ductile iron pipe. With its exceptional corrosion resistance, remarkable tensile strength, and ability to withstand high-pressure scenarios, ductile iron pipe proves itself suitable for a range of applications, including cooling water systems. Its durability and versatility ensure the efficient transportation and distribution of cooling water, eliminating the likelihood of leakage or malfunction. Moreover, ductile iron pipe is renowned for its extended lifespan and minimal upkeep demands, rendering it an economically sound option for cooling water systems.

Q:What is the minimum operating temperature for ductile iron pipes?: The minimum operating temperature for ductile iron pipes is typically around -20 degrees Celsius (-4 degrees Fahrenheit).

Q:How are ductile iron pipes manufactured?: Ductile iron pipes are manufactured through a process known as centrifugal casting, which involves the use of a spinning mold. The process begins with the selection and preparation of high-quality ductile iron, which is a type of cast iron that contains small amounts of magnesium to enhance its strength and ductility. First, the ductile iron is melted in a furnace at extremely high temperatures. Once the molten iron reaches the desired temperature, it is poured into a spinning mold. The spinning mold is designed in the shape of a pipe, and it rotates at a high speed to distribute the molten iron evenly along its inner surface. As the mold spins, the molten iron cools and solidifies against the mold walls. This rapid cooling results in a fine-grained structure and enhances the mechanical properties of the pipe, such as its strength and durability. The spinning mold continues to rotate until the pipe has completely solidified, which typically takes a few minutes. After solidification, the pipe is removed from the mold, and excess material, known as the "skin," is removed. The skin is typically removed by machining or grinding to achieve the desired dimensions and surface finish. Next, the pipe undergoes heat treatment to further enhance its mechanical properties and reduce internal stresses. Once the heat treatment is completed, the pipe is thoroughly inspected for any defects or imperfections. This includes visual inspections, non-destructive testing methods, and pressure testing to ensure the pipe meets the required specifications and standards. If any defects are detected, the pipe may be repaired or rejected depending on the severity of the issue. Finally, the pipes are coated with a protective layer to prevent corrosion and enhance their longevity. This coating can be applied through various methods, such as cement mortar lining, epoxy coating, or zinc coating. Overall, the manufacturing process of ductile iron pipes involves melting the iron, centrifugal casting, cooling, skin removal, heat treatment, inspection, and coating. This process ensures the production of high-quality pipes that possess excellent strength, durability, and resistance to corrosion.

Q:Can ductile iron pipes be used for stormwater drainage?: Indeed, stormwater drainage systems can utilize ductile iron pipes. Renowned for their robustness and endurance, ductile iron pipes are apt for numerous purposes, including stormwater drainage. Notably, these pipes possess remarkable tensile strength, enabling them to endure substantial loads and pressure, rendering them optimal for transporting significant volumes of stormwater. Furthermore, the smooth interior surface of ductile iron pipes diminishes friction and encourages efficient water flow, reducing the likelihood of obstructions and congestion. Through meticulous installation and upkeep, ductile iron pipes can furnish a dependable and enduring resolution for stormwater drainage.

Q:Can ductile iron pipes be repaired if they are damaged?: Yes, ductile iron pipes can be repaired if they are damaged. The extent of the damage will determine the type of repair that is needed. In cases where the pipe is cracked or has small holes, a repair clamp or a stainless-steel sleeve can be used to seal the damaged area. These methods provide a temporary fix and allow for the flow of water to continue until a more permanent repair can be made. For more severe damage, such as large cracks or broken sections, a full replacement may be necessary. This involves cutting out the damaged section of the pipe and installing a new piece. This process requires specialized equipment and expertise, but it can effectively restore the functionality of the pipe. It is important to note that the repair of ductile iron pipes should be carried out by trained professionals who have experience in working with this type of material. This ensures that the repairs are done correctly and do not compromise the integrity and safety of the pipeline system. Regular inspection and maintenance of ductile iron pipes can help identify any potential issues early on and prevent extensive damage that may require replacement rather than repair.

Q:What are the typical joint restraint systems used in ductile iron pipes?: Ductile iron pipes commonly employ various joint restraint systems, including mechanical joint restraints, push-on joint restraints, and restrained joint systems. 1. Mechanical Joint Restraints: These systems secure pipe joints using mechanical devices. The gland-type restraint, consisting of a gland and follower, is the most prevalent. By placing the gland over the pipe joint and tightening it with bolts, a tight seal is created, preventing movement. 2. Push-On Joint Restraints: Rubber gaskets are utilized in push-on joint restraints to establish a watertight seal between pipe sections. These restraints do not require additional devices or bolts to secure the joint. The gasket generates enough friction and compression to prevent pipe separation. 3. Restrained Joint Systems: These systems offer enhanced joint integrity and resistance to longitudinal movement. Typically, they combine mechanical joint restraints and push-on joint restraints. Additional elements like harnesses, rods, or wedges may also be incorporated for additional support and prevention of joint separation. It is crucial to consider that the specific joint restraint system employed in ductile iron pipes may vary based on factors such as application, pipe diameter, and operating conditions. Selecting the appropriate joint restraint system is vital to ensure the pipeline's structural integrity and longevity.

Q:Can ductile iron pipes be used for water supply networks?: Yes, ductile iron pipes can be used for water supply networks. Ductile iron pipes are known for their strength, durability, and resistance to corrosion, making them an ideal choice for transporting water. Additionally, their flexibility allows for easy installation and maintenance, making them a popular option for water supply networks.

Q:Are ductile iron pipes suitable for oil and gas pipeline applications?: Indeed, oil and gas pipeline applications can benefit greatly from the suitability of ductile iron pipes. With a multitude of properties that make them ideal for such uses, ductile iron pipes are a wise choice. First and foremost, the high tensile strength possessed by ductile iron pipes enables them to effectively handle the immense pressure and stress associated with oil and gas transmission. This ensures their ability to withstand the rigorous conditions and maintain their structural integrity over time. Additionally, ductile iron pipes exhibit exceptional resistance to corrosion. Given that oil and gas pipelines are exposed to various corrosive elements, such as water, chemicals, and salts, ductile iron pipes are equipped with a protective lining, typically composed of cement mortar or polyethylene. This lining effectively combats corrosion and prolongs the lifespan of the pipes. Moreover, ductile iron pipes boast impressive durability and longevity. With a service life typically spanning from 50 to 100 years, depending on specific conditions and maintenance practices, they prove to be a reliable choice for oil and gas pipeline applications. Consequently, the need for frequent replacements is reduced, resulting in minimized downtime. Furthermore, the flexibility inherent in ductile iron pipes allows them to endure ground movement and absorb shocks and vibrations. This flexibility is especially crucial in oil and gas pipeline applications, where the pipes must adapt to ever-changing terrain and environmental conditions. Lastly, ductile iron pipes offer a cost-effective alternative to other commonly used materials in oil and gas pipelines, such as steel. Striking a favorable balance between performance and price, they emerge as a practical choice for pipeline projects of varying scales. In summary, the combination of high tensile strength, corrosion resistance, durability, flexibility, and cost-effectiveness renders ductile iron pipes highly suitable for oil and gas pipeline applications.

Q:How is ductile iron pipe installed?: Ductile iron pipe is typically installed using a process called trenchless technology or open-cut method. In the trenchless technology approach, a hole is drilled into the ground and the ductile iron pipe is then pushed or pulled into the hole using hydraulic jacks or winches. This method minimizes disruptions to the surrounding environment and reduces the need for extensive excavation. In the open-cut method, a trench is excavated to the required depth and width for the ductile iron pipe. The trench is then prepared by removing any debris or obstructions and ensuring a stable base. The pipe is then lowered into the trench and aligned properly using laser or surveying equipment. After the pipe is positioned, joints are connected using a rubber gasket or mechanical joint. The joints are typically sealed to prevent leakage. Backfill material is then carefully placed around the pipe, ensuring proper compaction to provide stability and support. The backfill is typically done in layers to avoid excessive settlement. Once the installation is complete, the pipe is tested for leaks and pressure to ensure its integrity. This may involve hydrostatic testing, where the pipe is filled with water and monitored for any signs of leakage or pressure loss. Overall, the installation of ductile iron pipe requires careful planning, excavation, alignment, joint connection, backfilling, and testing. It is essential to follow industry standards and guidelines to ensure a successful and reliable installation that meets the required specifications.

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