DUCTILE IRON PIPES AND PIPE FITTINGS K9 CLASS DN500

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 22 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 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: What are the different methods for joining ductile iron pipe?: There exists a variety of methods to join ductile iron pipe, each possessing its own advantages and limitations. One commonly utilized technique is the mechanical joint (MJ) coupling, where a rubber gasket, bolts, and nuts are employed to establish a watertight seal between pipe sections. This method is comparatively swift and straightforward to install, although it necessitates the expertise of a skilled technician to ensure proper alignment and bolt tightening to prevent leakage. Another approach is the flanged joint, which involves equipping the pipe ends with flanges that are fastened together using gaskets to form a secure seal. This method permits easy disassembly and reassembly of pipe sections, making it suitable for applications requiring frequent maintenance or alterations. However, it is more costly and time-consuming when compared to other methods. A widely employed method is the push-on joint (POJ), wherein a rubber gasket and a special lubricant are utilized to slide the pipe ends together. This technique yields a reliable and watertight seal, and installation is relatively rapid and simple. However, it necessitates proper alignment and cautiousness to prevent damage to the gasket during assembly. An alternative option is the restrained joint (RJ), which utilizes a mechanical joint coupling with additional features to resist axial forces or thrusts. This method is commonly employed in applications where the pipe is subjected to internal pressure, external loads, or seismic activity. It offers a secure and rigid connection but may require specialized tools and training for installation. Lastly, welding is another method for joining ductile iron pipe. This involves heating the pipe ends and melting a filler metal to create a permanent bond. Welding provides a strong and durable connection, but it demands skilled welders and additional time for preparation, welding, and cooling. It is often employed for specific applications, such as joining sections of pipe with different diameters or connecting to other materials. In conclusion, the various methods for joining ductile iron pipe encompass mechanical joint coupling, flanged joint, push-on joint, restrained joint, and welding. The selection of the method relies on factors such as application requirements, installation time, maintenance needs, and budget.

Q: What is the expected joint deflection capability of ductile iron pipes?: Several factors can affect the expected joint deflection capability of ductile iron pipes. Generally, ductile iron pipes have a higher joint deflection capability compared to other pipe types. The joint deflection capability refers to how well a pipe joint can handle angular deflection or misalignment during installation or due to ground movement. Ductile iron pipes are known for their flexibility, which allows them to withstand external forces and movements without compromising their structural integrity. The expected joint deflection capability of ductile iron pipes typically falls within a range of 1 to 5 degrees, depending on the pipe diameter and wall thickness. This means that the pipes can safely accommodate angular deflection within this range without experiencing leaks or failures. It's important to consider that the joint deflection capability can also be influenced by factors like the type and quality of the joint restraint system, soil conditions, installation techniques, and pipe alignment. To ensure optimal joint deflection capability, it is crucial to follow proper installation practices and adhere to the guidelines provided by the manufacturer. All in all, ductile iron pipes have been designed and manufactured with a significant joint deflection capability, making them suitable for a wide variety of applications, including water distribution, sewer systems, and industrial piping networks.

Q: Are ductile iron pipes resistant to UV degradation?: Ductile iron pipes are not inherently resistant to UV degradation. Exposure to ultraviolet (UV) radiation from the sun can cause the degradation of various materials, including ductile iron. However, it is important to note that the rate of UV degradation in ductile iron pipes is relatively slow compared to other materials such as plastics or rubber. To mitigate the effects of UV degradation on ductile iron pipes, protective measures can be taken. Coating the pipes with a suitable UV-resistant paint or applying an external protective layer can help minimize the impact of UV radiation. Additionally, proper installation and maintenance practices can also contribute to the longevity and durability of ductile iron pipes. It is worth mentioning that while UV degradation may not be the primary concern for ductile iron pipes, other factors such as corrosion, chemical attack, or mechanical stress can still affect their performance and lifespan. Therefore, it is important to consider all potential environmental factors and apply appropriate protective measures accordingly.

Q: Can ductile iron pipe be used for water treatment plant sludge handling?: Yes, ductile iron pipe can be used for water treatment plant sludge handling. Ductile iron pipe is known for its strength and durability, making it suitable for handling various types of fluids, including sludge. It can withstand the corrosive nature of sludge and is resistant to abrasion, which is important in a sludge handling system. Additionally, ductile iron pipe has a smooth interior surface, which helps to prevent clogs and allows for efficient flow of the sludge. Overall, ductile iron pipe is a reliable choice for water treatment plant sludge handling.

Q: What is the relationship between the direction of the spigot and the direction of the flow in the ductile iron pipe?: The utility model is mainly used for conveying water, and is an ideal choice for tap water pipes.

Q: How does ductile iron pipe perform in sandy or unstable soils?: Due to its inherent strength and flexibility, ductile iron pipe exhibits exceptional performance in sandy or unstable soils. Its composition, which includes a combination of iron, carbon, and small amounts of other elements, grants it superior mechanical properties compared to other pipe types. In sandy soils, where the ground may shift and cause pipe movement and deformation, ductile iron's high tensile strength and elongation characteristics enable it to withstand pressure and stress without fracturing or breaking. Its flexibility allows it to accommodate soil movement and settlement, reducing the risk of pipe failure. Furthermore, ductile iron pipe's resistance to corrosion makes it highly suitable for installation in sandy soils. The application of protective linings and coatings on both the interior and exterior of the pipe prevents corrosive elements in the soil from attacking the iron, ensuring durability and reliability in the long term. 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 for even distribution of loads, minimizing the chances of pipe deflection or collapse. Moreover, the joint design and sealing methods of ductile iron pipe, such as push-on joints or mechanical joints with rubber gaskets, offer excellent leak resistance and prevent soil infiltration. This further enhances its performance in sandy or unstable soils. Overall, the combination of strength, flexibility, corrosion resistance, and reliable joint systems makes ductile iron pipe an ideal choice for applications in sandy or unstable soils. It provides a long-lasting and efficient solution for the transmission of water and wastewater.

Q: Can ductile iron pipes be used for irrigation of golf courses?: Certainly, ductile iron pipes are applicable for the irrigation of golf courses. Renowned for their durability, strength, and resistance to corrosion, these pipes are suitable for a wide range of uses, including irrigation systems. They possess the ability to endure high-pressure water flow and are less prone to cracking or breaking when compared to alternative materials. Moreover, ductile iron pipes boast an extended lifespan, minimizing the necessity for frequent maintenance or replacement. Consequently, they represent a dependable option for the irrigation of golf courses, where a continuous and efficient water supply is imperative for sustaining healthy turf and landscaping.

Q: What are the advantages of using ductile iron pipe over HDPE pipe?: Ductile iron pipe offers numerous benefits compared to HDPE pipe. Firstly, it is renowned for its exceptional strength and durability. With the ability to withstand higher pressure, it is less prone to leakage or bursting, making it an ideal choice for applications requiring high-pressure water or gas transmission, such as municipal water supply systems or industrial piping networks. Secondly, ductile iron pipe boasts an extended lifespan when compared to HDPE pipe. Its remarkable resistance to corrosion allows it to endure for decades, even in harsh environmental conditions. As a result, frequent replacements are minimized, leading to long-term cost savings. Furthermore, ductile iron pipe exhibits excellent fire resistance properties. It can endure high temperatures without compromising its structural integrity, making it a reliable option for applications where fire safety is a concern, such as fire hydrant systems or sprinkler systems. Additionally, ductile iron pipe is renowned for its superior flow characteristics. Its smooth inner surface reduces friction loss, facilitating efficient and consistent fluid flow. This attribute is particularly crucial in applications that necessitate maximum flow capacity, such as water distribution systems or wastewater treatment plants. Moreover, ductile iron pipe is highly recyclable, promoting environmental sustainability. It can be melted down and utilized to manufacture new pipes, thereby reducing its environmental impact. In conclusion, ductile iron pipe offers a multitude of advantages over HDPE pipe, including its exceptional strength and durability, prolonged lifespan, fire resistance, superior flow characteristics, and recyclability. These features establish ductile iron pipe as the preferred choice for various applications, particularly those that require high-pressure transmission, longevity, fire safety, efficient flow, and environmental sustainability.

Q: What is the weight of a typical ductile iron pipe?: The weight of a typical ductile iron pipe can vary depending on size and wall thickness. Ductile iron pipes are generally available in sizes ranging from 3 inches to 64 inches in diameter. The weight of these pipes can range from a few pounds per foot for smaller sizes to several hundred pounds per foot for larger diameters. Additionally, wall thickness plays a significant role in determining the weight of the pipe. Thicker walls will result in a heavier pipe. For example, a 10-inch ductile iron pipe with a wall thickness of 0.25 inches may weigh around 26 pounds per foot, while a 24-inch ductile iron pipe with a wall thickness of 0.5 inches can weigh approximately 175 pounds per foot. To determine the precise weight of a specific ductile iron pipe, it is essential to consult specific manufacturer specifications or engineering references.

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