DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN900

DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN900

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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: Are ductile iron pipes suitable for power plant cooling systems?: Ductile iron pipes are well-suited for power plant cooling systems, offering numerous advantages that render them perfect for such applications. Firstly, their high strength and durability enable them to withstand the immense pressure and heavy loads typically associated with power plant cooling systems. Additionally, these pipes exhibit excellent resistance to corrosion, a vital feature in an environment where water and other cooling fluids continuously flow. Moreover, they boast good thermal conductivity, ensuring efficient heat transfer away from power plant equipment and contributing to the overall cooling process. Lastly, ductile iron pipes are cost-effective compared to other commonly used materials in power plant cooling systems, making them a practical choice. Ultimately, due to their strength, corrosion resistance, thermal conductivity, and cost-effectiveness, ductile iron pipes represent a reliable and suitable option for power plant cooling systems.

Q: What are the meanings of cast iron pipe wall thicknesses LA, A and B respectively?: You are mistaken in concept. The cast iron pipe is the sort of connection method. The ductile iron pipe is classified according to the material.

Q: How are ductile iron pipes protected against interior corrosion?: Ductile iron pipes are protected against interior corrosion through a process known as cement mortar lining. This involves applying a layer of cement mortar to the interior surface of the pipe. The cement mortar acts as a protective barrier, preventing the corrosive elements in the water or fluid from coming into direct contact with the iron material. To apply the cement mortar lining, the interior surface of the ductile iron pipe is first prepared by removing any loose scale or debris. Then, a cement mortar mixture is prepared by combining cement, sand, and water to form a paste-like consistency. This mixture is then applied to the pipe's interior surface using a spinning machine or manually by skilled workers. Once the cement mortar lining is applied, it is left to cure for a specific period of time, typically around 24 hours. During this curing process, the cement mortar hardens and forms a dense protective layer on the pipe's interior surface. The cement mortar lining offers various benefits in protecting ductile iron pipes against corrosion. It provides a smooth and continuous surface that prevents the water or fluid from directly contacting the iron material, reducing the risk of corrosion. Additionally, the cement mortar lining also helps to reduce the friction within the pipe, improving flow efficiency. Regular inspection and maintenance of the cement mortar lining are essential to ensure its effectiveness in preventing corrosion. Over time, the lining may develop cracks or deteriorate, which can compromise its protective properties. Therefore, it is important to periodically inspect the lining and repair or replace it as needed to maintain the integrity of the ductile iron pipes and prevent interior corrosion.

Q: What are the typical joint sealing requirements for ductile iron pipes?: The typical joint sealing requirements for ductile iron pipes include the use of rubber gaskets or mechanical joints. Rubber gaskets are commonly used for joint sealing in ductile iron pipes as they provide a reliable and flexible seal. These gaskets are typically made of synthetic rubber materials that are resistant to water, chemicals, and other environmental factors. Mechanical joints, on the other hand, are another common method of joint sealing in ductile iron pipes. These joints consist of a mechanical device that connects the pipes together and provides a watertight seal. Mechanical joints are typically designed to allow for some movement and flexibility, which is especially important in areas where ground movement or settlement may occur. In addition to using rubber gaskets or mechanical joints, it is also important to properly clean and prepare the pipe surfaces before making the joint. This may involve removing any dirt, debris, or old joint material from the pipe ends to ensure a proper seal. The joint should then be assembled according to the manufacturer's instructions, ensuring that the gasket or mechanical joint is correctly positioned and tightened to the recommended torque. Overall, the typical joint sealing requirements for ductile iron pipes involve the use of rubber gaskets or mechanical joints, proper cleaning and preparation of the pipe ends, and following the manufacturer's instructions for assembly. These requirements are essential for ensuring a watertight and durable joint that can withstand the pressures and environmental conditions commonly encountered in ductile iron pipe systems.

Q: How are leaks repaired in ductile iron pipe?: Leak repairs in ductile iron pipes vary depending on the severity and location of the leak. One technique commonly used involves the application of epoxy-based sealants or leak repair clamps. For small leaks, epoxy sealants are commonly utilized. A specialized epoxy compound is applied to the leaking area, which then hardens and forms a durable seal. The epoxy is carefully spread on the pipe's surface, covering the leak and any surrounding damage. This method effectively addresses small leaks and offers a long-lasting solution. In cases where the leak is larger or more severe, leak repair clamps are often utilized. These clamps secure tightly around the pipe using rubber gaskets and bolts to provide a mechanical seal. The clamp's pressure compresses the gasket onto the pipe, creating a watertight seal and preventing further leakage. Leak repair clamps come in various sizes to accommodate different pipe diameters. Proper preparation of the pipe surface is crucial before applying either repair method. The area around the leak must be thoroughly cleaned and dried to ensure good adhesion of the epoxy or proper sealing with the clamp. It is also essential to adhere to the manufacturer's instructions and guidelines for the chosen repair method to achieve a successful and long-lasting repair. It is important to note that these repair methods are temporary solutions and may not be suitable for all situations. In cases of extensive pipe damage or aging infrastructure, it may be necessary to replace the affected pipe section entirely. It is recommended to seek professional assessment and guidance from qualified technicians or plumbers when dealing with leaks in ductile iron pipes. This ensures proper repairs and minimizes the risk of future issues.

Q: Are ductile iron pipes resistant to corrosion?: Ductile iron pipes possess resistance against corrosion, indeed. Ductile iron, a variant of cast iron, undergoes treatment with additional substances to enhance its flexibility and durability. These substances, like graphite, magnesium, and cerium, form a protective barrier on the pipe's surface, rendering it highly resistant to corrosion. Furthermore, ductile iron pipes are frequently coated with either cement mortar or a fusion-bonded epoxy coating, thereby augmenting their resistance against corrosion. This attribute renders ductile iron pipes suitable for a range of applications, including water distribution, wastewater treatment, and industrial pipelines, where corrosion is commonly encountered.

Q: DN1800 can the length of ductile iron pipes be several meters? What is the total weight?: Ductile cast iron pipe after annealing, the microstructure is ferrite and pearlite, good mechanical properties, excellent corrosion resistance, good ductility, good sealing effect, simple installation, mainly for municipal, industrial and mining enterprises, water supply, gas, oil etc..

Q: What are some common applications for ductile iron pipe?: Ductile iron pipe, known as DI pipe, is extensively utilized in a variety of applications because of its durability, strength, and ability to resist corrosion. The following are some common uses of ductile iron pipe: 1. Water Distribution: DI pipe is widely employed in the distribution of clean water. Its high tensile strength enables it to withstand high water pressure, making it perfect for water mains, water transmission lines, and water distribution networks. 2. Sewer Systems: DI pipe is commonly utilized in sewer systems because of its corrosion resistance and ability to handle heavy loads. It is often used for gravity sewer lines, force mains, and stormwater systems. 3. Industrial Applications: DI pipe is used in various industrial settings, such as power plants, chemical plants, and refineries. It is utilized for the transportation of water, wastewater, and other fluids in these industries. 4. Irrigation Systems: Due to its strength and long lifespan, DI pipe is suitable for irrigation systems, particularly in agricultural areas. It is used to transport water for irrigation purposes, ensuring efficient water distribution in fields and farms. 5. Fire Protection Systems: DI pipe is commonly employed in fire protection systems, including fire hydrants, fire sprinkler systems, and fire suppression systems. Its robustness and ability to withstand high pressure make it an excellent choice for reliable and effective fire protection. 6. Pumping Stations: DI pipe is frequently utilized in pumping stations, which are crucial for various water-related applications. It is used in water intake systems, wastewater pumping stations, and water treatment plants to efficiently transport water and wastewater. 7. Municipal Infrastructure: DI pipe is widely used in municipal infrastructure projects, such as road drainage systems, culverts, and bridge crossings. Its strength, durability, and ability to withstand external loads make it suitable for these applications. 8. Gas Distribution: Although primarily used for water-related applications, DI pipe is also utilized for the distribution of natural gas and other gases. It is preferred for gas distribution due to its resistance to corrosion and ability to withstand high-pressure environments. In conclusion, ductile iron pipe has a wide range of applications and is preferred in situations that require strength, durability, and resistance to corrosion. Its versatility and reliability make it a popular choice for various infrastructure projects and industrial applications.

Q: Are ductile iron pipes suitable for bridge crossings?: Indeed, bridge crossings are well-suited for the utilization of ductile iron pipes. Renowned for their exceptional strength and durability, ductile iron pipes present a dependable option for a wide range of applications, including bridge crossings. These pipes possess the capacity to endure substantial loads and exhibit resistance to corrosion, a particularly vital attribute when considering the challenging environmental conditions that bridge crossings may expose them to. Moreover, ductile iron pipes possess the remarkable ability to flex and withstand ground movement, rendering them an optimal choice for bridge crossings where the ground may experience shifting or settling over time. In conclusion, ductile iron pipes offer the necessary characteristics to guarantee the secure and efficient conveyance of fluids or materials across bridges.

Q: Are there any limitations to the length of ductile iron pipe sections?: Yes, there are limitations to the length of ductile iron pipe sections. The length of ductile iron pipe sections is typically limited due to practical considerations such as transportation, installation, and handling. Longer pipe sections can be more difficult to transport and maneuver, especially in areas with limited access or challenging terrain. Additionally, longer pipe sections may be more prone to damage during installation, as they can be more difficult to align and join properly. There are also limitations in terms of manufacturing capabilities. Ductile iron pipes are typically manufactured in standard lengths, which can vary depending on the manufacturer and the specific application. These standard lengths are typically designed to balance the needs of transportation, installation, and the overall performance of the pipe. Furthermore, longer pipe sections may pose challenges in terms of expansion and contraction due to temperature variations. Ductile iron pipes are susceptible to thermal expansion and contraction, and longer sections may experience greater stress and strain as a result. Therefore, while there is no absolute limit to the length of ductile iron pipe sections, practical considerations and manufacturing capabilities often result in the use of standard lengths that balance various factors such as transportation, installation, and performance.

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