DUCTILE IRON PIPEs K8CLASS DN100

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 23 pc

Supply Capability:: 3000 pc/month

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Specifications

· 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: Can ductile iron pipes be used for geothermal systems?: Yes, ductile iron pipes can be used for geothermal systems. Ductile iron is known for its strength, durability, and corrosion resistance, making it suitable for various applications including geothermal systems. These pipes can handle high temperatures and pressure fluctuations commonly found in geothermal systems. Additionally, ductile iron pipes have excellent thermal conductivity properties, allowing for efficient heat transfer between the geothermal fluid and the surrounding environment. Therefore, ductile iron pipes are a viable option for transporting geothermal fluids in geothermal systems.

Q: How does ductile iron pipe handle temperature changes?: Ductile iron pipe is known for its ability to handle temperature changes effectively. The unique properties of ductile iron make it highly resistant to thermal expansion and contraction, allowing it to withstand extreme temperature variations without significant deformations or failures. When exposed to temperature changes, ductile iron pipes can expand or contract within certain limits due to its inherent ductility. This flexibility helps to accommodate thermal stresses and prevent the pipe from cracking or breaking. The material's high tensile strength and elasticity also contribute to its ability to handle temperature changes without significant structural damage. Moreover, ductile iron pipes have a low coefficient of thermal expansion, meaning they expand and contract at a relatively slow rate compared to other materials. This characteristic minimizes the potential for stress on the pipe joints and reduces the risk of leaks or failures. In addition to its excellent thermal stability, ductile iron pipe also features a protective lining that further enhances its resistance to temperature changes. The linings, such as cement mortar or polyethylene, create a barrier between the pipe and the transported fluid, preventing any adverse effects caused by thermal variations on the pipe's internal surface. Overall, ductile iron pipe is a reliable choice for applications where temperature changes are common. Its ability to withstand thermal stresses, low coefficient of thermal expansion, and protective linings make it a durable and efficient solution for various infrastructural needs, including water distribution, wastewater management, and industrial applications.

Q: What are the different methods for tapping ductile iron pipe?: There are several different methods for tapping ductile iron pipe, depending on the specific requirements of the project. Some of the common methods used include: 1. Mechanical Tapping: This method involves using a mechanical tapping machine to create a hole in the ductile iron pipe. The machine is equipped with a cutting tool that rotates and cuts through the pipe wall, creating a clean hole. This method is commonly used for smaller diameter pipes and is relatively quick and efficient. 2. Hot Tapping: Hot tapping involves creating a hole in a pressurized ductile iron pipe while it is still in service. This method requires specialized equipment and expertise to ensure safety and maintain the integrity of the pipe. Hot tapping is commonly used when it is not feasible or practical to shut down the pipeline for maintenance or repair work. 3. Electrofusion Tapping: Electrofusion tapping is a method that uses an electrofusion saddle and fitting to create a branch connection on a ductile iron pipe. This method involves welding a fitting onto the pipe using an electrofusion machine, which creates a secure and leak-proof connection. Electrofusion tapping is commonly used for larger diameter pipes and is suitable for both water and gas applications. 4. Saddle Tapping: Saddle tapping involves attaching a saddle or clamp onto the ductile iron pipe and drilling a hole through the saddle into the pipe. The saddle is then equipped with a threaded outlet for connecting a branch line. This method is commonly used for smaller diameter pipes and is relatively simple and cost-effective. 5. Split Sleeve Tapping: Split sleeve tapping is a method that involves cutting a section out of the ductile iron pipe and installing a split sleeve over the cut. The split sleeve is then bolted together, creating a secure and watertight connection. This method is commonly used for larger diameter pipes and is suitable for both water and gas applications. It is important to note that the selection of the tapping method should be based on factors such as the pipe size, pressure rating, required branch connection, and the specific requirements of the project. Consulting with a professional engineer or tapping specialist is recommended to ensure the proper method is used for tapping ductile iron pipe.

Q: Are ductile iron pipes resistant to alkaline attacks?: Yes, ductile iron pipes are generally resistant to alkaline attacks. The high carbon content and unique composition of ductile iron make it highly resistant to corrosion caused by alkaline substances. This resistance allows ductile iron pipes to be used in a variety of applications where alkaline conditions exist, such as wastewater treatment plants and alkaline soil environments. However, it is important to note that the specific resistance may vary depending on the concentration and duration of exposure to alkaline substances.

Q: What is the expected joint restraint method for ductile iron pipes?: The expected joint restraint method for ductile iron pipes is typically mechanical joints or push-on joints. These joints provide a secure and leak-free connection between the pipes, ensuring the stability and integrity of the pipeline system. Mechanical joints involve the use of rubber gaskets and bolts to tightly seal the joint, while push-on joints utilize a groove and rubber gasket system to create a watertight seal. Both methods offer excellent joint restraint capabilities, allowing for the effective transmission of fluids or gases through the pipeline without the risk of joint separation or failure. Additionally, these joint restraint methods also facilitate ease of installation and maintenance, making them a preferred choice for ductile iron pipe systems.

Q: What are the common methods for flow control in ductile iron pipes?: There are several common methods for flow control in ductile iron pipes. One of the most commonly used methods is the installation of valves. Valves can be used to regulate the flow of water or other fluids through the pipes. They can be manually operated or automated, depending on the specific needs of the system. Another method for flow control in ductile iron pipes is the use of flow restrictors or flow limiters. These devices are installed in the pipes to reduce the flow rate and ensure that the system operates within its designed parameters. Flow restrictors can be useful in situations where the flow needs to be controlled to prevent damage or to optimize the efficiency of the system. Flow control can also be achieved through the use of pressure regulators. These devices are installed in the pipes to maintain a specific pressure level within the system. Pressure regulators can help prevent excessive pressure, which can lead to pipe bursts or other damage. They can also help maintain a consistent pressure throughout the system, ensuring that the flow is controlled and predictable. Additionally, flow control can be achieved through the use of flow meters. These devices are installed in the pipes to measure the flow rate of the fluid passing through them. By monitoring the flow rate, operators can adjust valves or other flow control devices to ensure that the flow is within the desired range. Flow meters are particularly useful in applications where accurate flow measurement is crucial, such as in industrial processes or water distribution systems. Overall, the common methods for flow control in ductile iron pipes include the use of valves, flow restrictors, pressure regulators, and flow meters. These methods can be combined or used individually depending on the specific requirements of the system.

Q: Can ductile iron pipes be used in contaminated soil conditions?: Yes, ductile iron pipes can be used in contaminated soil conditions. Ductile iron is known for its strength, durability, and corrosion resistance, making it suitable for various soil conditions, including those contaminated with chemicals or other pollutants. The material's resistance to corrosion ensures that the pipes can withstand the harsh conditions and maintain their structural integrity over time. However, it is important to consider the type and level of contamination in the soil and consult with experts to determine if any additional protective measures or coatings are required to ensure the long-term performance of the pipes.

Q: Can ductile iron pipes be used for underground sewage systems?: Underground sewage systems can utilize ductile iron pipes, which offer numerous advantages. Ductile iron is a form of cast iron that possesses improved flexibility and strength, making it suitable for a variety of applications, including sewage systems. The first advantage of ductile iron pipes for underground sewage systems is their exceptional resistance to corrosion. This is particularly important in sewage systems where moisture and chemicals can contribute to corrosion over time. By resisting corrosion, these pipes ensure long-term durability and reliability. Additionally, ductile iron pipes possess high tensile strength, enabling them to withstand the pressure and stress that occur in underground sewage systems. They are also capable of withstanding ground movements, such as soil settling or shifting, which can cause damage to pipes made from other materials. Moreover, ductile iron pipes have a smooth internal surface, resulting in improved flow capacity and reducing the likelihood of clogging or blockages in the sewage system. This smooth surface also minimizes the accumulation of debris and sediment, lessening the need for frequent maintenance and cleaning. Another significant aspect is that ductile iron pipes are available in various sizes and can be easily connected using a range of joint systems. This allows for flexibility when designing and constructing underground sewage systems. In conclusion, ductile iron pipes are an excellent choice for underground sewage systems due to their corrosion resistance, high tensile strength, smooth internal surface, and ease of installation.

Q: What's the difference between ductile iron pipe and cast iron pipe?: Cast iron pipe and ductile iron pipe, cast iron pipe, also known as the cast iron pipe, ordinary gray iron. Often used in socket connection, the sealing material is usually cement rigid interface.

Q: Can ductile iron pipes be used for firefighting systems?: Yes, ductile iron pipes can be used for firefighting systems. Ductile iron pipes are known for their strength, durability, and ability to withstand high pressure. They are commonly used in various applications, including firefighting systems, due to their resistance to corrosion and their ability to handle the flow of water efficiently.

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