DUCTILE IRON PIPES AND PIPE FITTINGS K8 CLASS DN900

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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: How does ductile iron pipe perform in high-pressure gas applications?: Due to its unique characteristics and properties, ductile iron pipe is an outstanding option for high-pressure gas applications. Firstly, its high tensile strength enables it to withstand the immense pressure exerted by gas flowing through the pipeline, ensuring leakage or rupture-free containment. Additionally, ductile iron pipe exhibits remarkable resistance to corrosion, making it ideal for gas applications that may encounter moisture, chemicals, or other corrosive substances. This corrosion resistance guarantees the pipe's longevity and minimizes the risk of damage or failure caused by corrosion. Another advantage of ductile iron pipe in high-pressure gas applications is its capability to handle thermal expansion and contraction. As gas is transported under high pressures, temperature fluctuations occur, resulting in pipeline expansion and contraction. However, ductile iron pipe's flexibility allows it to adapt to these changes without compromising its performance or structural integrity. Furthermore, ductile iron pipe's smooth interior surface reduces friction losses and pressure drops, resulting in efficient gas flow. This smoothness also reduces the likelihood of gas impurities or debris becoming trapped, potentially leading to blockages or flow disruptions. In conclusion, when it comes to high-pressure gas applications, ductile iron pipe is a dependable and durable choice. Its high tensile strength, corrosion resistance, ability to handle thermal expansion, and smooth interior surface all contribute to its exceptional performance in demanding conditions.

Q: What are ductile iron pipes?: Ductile iron pipes, possessing high tensile strength and flexibility, are a variant of iron pipes. They are manufactured by treating cast iron with small quantities of magnesium, resulting in a material that surpasses traditional cast iron pipes in terms of strength and resilience. The introduction of magnesium alters the microstructure of the iron, leading to the formation of graphite nodules within the iron, hence the term "ductile iron". This distinctive structure grants ductile iron pipes exceptional properties, enabling them to withstand high pressures and extreme temperatures without cracking or breaking. Consequently, ductile iron pipes are commonly employed in water and wastewater systems, as well as various industrial applications, due to their durability, longevity, and capacity to endure external loads. Moreover, their ease of installation and minimal maintenance requirements have made them a favored choice in the construction industry.

Q: Can ductile iron pipe be used for bridge crossings?: Yes, ductile iron pipe can be used for bridge crossings. Ductile iron pipe is known for its strength, durability, and flexibility, making it suitable for various applications, including bridge crossings. Its high tensile strength allows it to withstand heavy loads and vibrations, making it ideal for supporting bridges and handling the weight of traffic. Additionally, ductile iron pipe's flexibility allows it to absorb movements and deformations caused by temperature changes, settling, and other factors, reducing the risk of structural damage and ensuring the longevity of the bridge crossing. Furthermore, ductile iron pipe is resistant to corrosion, making it a reliable choice for bridge crossings where exposure to moisture, chemicals, and other corrosive elements is common. Overall, ductile iron pipe's properties make it a suitable and reliable material for bridge crossings.

Q: Can ductile iron pipes be used for hydropower projects?: Yes, ductile iron pipes can be used for hydropower projects. Ductile iron pipes are known for their durability, strength, and resistance to corrosion, which makes them suitable for various applications, including hydropower projects. They can handle high-pressure water flow, making them ideal for conveying water to turbines or other power generation equipment. Additionally, ductile iron pipes have a long lifespan, which reduces maintenance and replacement costs over time. Therefore, using ductile iron pipes in hydropower projects can contribute to the overall efficiency and reliability of the system.

Q: Can ductile iron pipes be used for gravity flow applications?: Yes, ductile iron pipes can be used for gravity flow applications. Ductile iron pipes are known for their strength, durability, and flexibility, making them ideal for various applications including gravity flow systems. They are commonly used in water and wastewater systems, storm drainage systems, and other gravity flow applications where the pipes need to withstand high internal and external pressures. Ductile iron pipes are able to handle the weight of the flowing fluid without the need for additional support, making them a reliable choice for gravity flow applications. Additionally, their corrosion resistance properties ensure long-term performance in underground or exposed environments. Therefore, ductile iron pipes are suitable and commonly used for gravity flow applications.

Q: What is the process of fusion bonding for ductile iron pipes?: The process of fusion bonding for ductile iron pipes involves joining two or more pipes together using heat and pressure to create a strong and durable bond. This technique is particularly used in the construction and installation of underground water, sewer, and gas pipelines. The first step in the fusion bonding process is to clean and prepare the surfaces of the pipes to be joined. This involves removing any dirt, debris, or rust that may interfere with proper bonding. Specialized cleaning tools and techniques, such as wire brushing or sandblasting, are often employed to ensure a clean and smooth surface. Once the surfaces are prepared, the pipes are aligned and clamped together. A fusion bonding machine, also known as a fusion welder, is then used to apply heat and pressure to the joint area. The fusion bonding machine consists of heating elements that are positioned around the joint and a hydraulic system that applies the necessary pressure. The heating elements are typically electric or gas-powered and are designed to reach temperatures high enough to melt the ductile iron material. As the heat is applied, the ductile iron surfaces begin to soften and fuse together, creating a strong bond. The pressure from the fusion bonding machine ensures that the molten iron flows evenly and uniformly between the joint surfaces, promoting a seamless connection. The duration of the fusion bonding process varies depending on the size and thickness of the pipes, as well as the specific requirements of the project. Once the fusion bonding is complete, the joint is allowed to cool and solidify, forming a permanent and leak-proof connection. Fusion bonding offers several advantages for ductile iron pipes. It provides a reliable and durable joint that can withstand high pressure, temperature variations, and external loads. The seamless connection also minimizes the risk of leaks, which is crucial for underground pipelines that transport water, sewage, or gas. Overall, fusion bonding is a widely used technique for joining ductile iron pipes, ensuring their structural integrity and longevity in various infrastructure projects.

Q: Will the quality of ductile iron shrink?: Fool you. It is normal that the surface shrinks and goes down, but it can not be said to be good.

Q: Can ductile iron pipes be used for underground river crossings?: Yes, ductile iron pipes can be used for underground river crossings. Ductile iron pipes have excellent strength and durability, making them suitable for various applications, including underground river crossings. They have high tensile strength and are resistant to corrosion and external loads, making them an ideal choice for such installations.

Q: How do ductile iron pipes handle ground movement due to tree roots?: Ductile iron pipes possess a robust and enduring nature, rendering them exceptionally resilient against ground movement induced by tree roots. The flexibility of ductile iron enables it to endure the pressure exerted by growing tree roots without fracturing or breaking. This capability is attributed to the material's aptitude for absorbing and dispersing stress, thereby minimizing the impact of ground movement. Furthermore, ductile iron pipes exhibit a sleek inner surface that diminishes the likelihood of tree roots infiltrating. The firmly sealed joints between the pipes likewise prevent root penetration and subsequent harm. In cases where tree roots do manage to infiltrate the soil and make contact with ductile iron pipes, their resistance to corrosion offers an additional advantage. Ductile iron pipes are coated with a protective layer that thwarts the formation of rust and corrosion, guaranteeing their long lifespan and structural integrity. Nevertheless, it is imperative to acknowledge that despite the high resistance of ductile iron pipes to ground movement caused by tree roots, regular inspection and maintenance are still advisable. This facilitates early detection and the necessary execution of repairs if any root infiltration or damage is identified.

Q: Are there any specific standards or regulations for ductile iron pipe?: Ductile iron pipe is subject to specific standards and regulations. It is widely used in water and wastewater systems due to its strength and durability. The American Water Works Association (AWWA) C151 standard is the most well-known standard for ductile iron pipe. This standard outlines the minimum requirements for ductile iron pipe, including materials, dimensions, tolerances, and testing methods. It also provides guidance on the manufacturing, installation, and maintenance of ductile iron pipe systems. Apart from the AWWA C151 standard, there are other standards and regulations that govern the use of ductile iron pipe in different countries. In Europe, for instance, ductile iron pipe is regulated by the EN 545 and EN 598 standards. These standards specify the requirements for ductile iron pipes and fittings used in water supply and wastewater systems. Additionally, government agencies like the Environmental Protection Agency (EPA) in the United States may have specific regulations and guidelines for using ductile iron pipe in certain applications, such as drinking water systems. Manufacturers, contractors, and engineers involved in the design, installation, and maintenance of ductile iron pipe systems must ensure compliance with these standards and regulations. This is crucial to guarantee that ductile iron pipe is manufactured to the highest quality standards and that it is installed and maintained correctly, ensuring its durability and reliability in water and wastewater systems.

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