DUCTILE IRON PIPES AND PIPE FITTINGS K9 CLASS DN350

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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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Ductile Iron Pipe On Sale Made In China DN350

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 common methods for leak detection in ductile iron pipes?: There are several common methods for leak detection in ductile iron pipes. These methods are widely used by professionals in the field to identify and locate leaks in a timely manner. 1. Acoustic Leak Detection: This method involves using specialized equipment to listen for the sound of water escaping from the pipe. The equipment detects the sound of the leak and helps pinpoint its location. This method is effective for both pressurized and non-pressurized pipes. 2. Visual Inspection: Visual inspection involves physically inspecting the pipe system for any visible signs of leaks such as water stains, wet spots, or puddles. This method is relatively simple and can be effective for detecting visible leaks in accessible areas. 3. Pressure Testing: Pressure testing involves pressurizing the pipe system and monitoring for any drops in pressure. If there is a leak, the pressure will drop, indicating its presence. This method is commonly used during installation or maintenance and can help identify leaks in inaccessible areas. 4. Infrared Thermography: Infrared cameras are used to detect leaks by measuring temperature differences. Water escaping from a pipe can create a temperature difference, which can be detected by the camera. This method is particularly effective for identifying hidden leaks behind walls or underground. 5. Tracer Gas Testing: Tracer gas testing involves injecting a specific gas, such as helium or hydrogen, into the pipe system. If there is a leak, the gas will escape and can be detected using specialized equipment. This method is highly sensitive and can locate even small leaks. 6. Soil Gas Monitoring: This method involves monitoring the soil around the pipe for the presence of gases emitted by leaking water. By analyzing the soil gas composition, professionals can determine the location of the leak. It is important to note that the choice of method may vary depending on the specific circumstances, such as the size of the pipe system, accessibility, and severity of the leak. In some cases, a combination of methods may be used to ensure accurate and comprehensive leak detection.

Q: Are ductile iron pipes suitable for trenchless pipe ramming installations?: Ductile iron pipes are indeed appropriate for trenchless pipe ramming installations. This material possesses remarkable strength and durability, enabling it to withstand the impact and stress encountered during the ramming process. Its exceptional tensile strength allows it to resist cracking or breaking when subjected to pressure. Moreover, ductile iron pipes are highly resistant to corrosion, rendering them ideal for underground installations. Furthermore, their smooth interior surface promotes fluid or gas flow. All in all, ductile iron pipes present a dependable and economical choice for trenchless pipe ramming installations.

Q: What is the expected service life of ductile iron pipe?: The expected service life of ductile iron pipe can vary depending on various factors such as the quality of the pipe, the environment it is installed in, and the maintenance and care it receives. However, on average, ductile iron pipe has a life expectancy of 80 to 100 years.

Q: How does ductile iron pipe handle soil movement?: Ductile iron pipe is known for its excellent strength and durability, making it highly capable of handling soil movement. When the soil around the pipe shifts or settles, ductile iron pipes have the ability to flex and accommodate such movement without compromising their structural integrity. One of the key features that allows ductile iron pipes to handle soil movement is their inherent ability to withstand bending and stretching. They possess a high degree of flexibility, allowing them to adjust to ground shifts and settle without breaking or cracking. This flexibility is due to the unique material properties of ductile iron, which is a type of cast iron that has been treated with magnesium to enhance its strength and elasticity. Moreover, ductile iron pipes are designed with a thick-walled construction, which adds to their resistance against soil movement. This robust construction helps distribute the forces exerted by the shifting soil, minimizing the impact on the pipe and preventing any significant damage. In addition, ductile iron pipes are usually installed with appropriate bedding and backfill materials to provide additional support and stability. This includes using compacted soil or engineered granular materials around the pipe, which helps to evenly distribute the load and reduce the potential for soil movement. Overall, ductile iron pipe is an ideal choice for areas with high soil movement, such as regions with expansive or unstable soils. Its flexibility, strength, and proper installation techniques make it capable of handling the challenges posed by soil movement, ensuring long-lasting and reliable performance in various applications.

Q: How does ductile iron pipe handle changes in pipe diameter or size?: Ductile iron pipe offers a convenient solution for dealing with alterations in pipe diameter or size. Its excellent flexibility and capacity to adapt to changes in pipe dimensions without compromising its structural integrity are a result of its unique composition, which contains a significant amount of graphite nodules that provide ductility and elasticity to the material. When faced with adjustments in pipe diameter or size, ductile iron pipe can be easily manufactured or modified to meet specific requirements. It can be cast or fabricated in different diameters and lengths, allowing for seamless integration and adaptability within a pipeline system. This versatility proves particularly advantageous when connecting different pipe sizes or making alterations to the pipeline layout. Furthermore, the superior mechanical properties of ductile iron pipe enable it to withstand the stresses and forces associated with changes in pipe diameter or size. It possesses high tensile strength, impact resistance, and durability, ensuring its ability to handle the internal and external pressures exerted on the pipe during operations. Moreover, the jointing systems employed with ductile iron pipe contribute to its ability to handle changes in diameter or size. Various joint types, including push-on, restrained, or mechanical joints, provide secure and leak-free connections between different pipe sections. These joints facilitate easy assembly and disassembly, enabling efficient adjustments to the pipe diameter or size as required. In conclusion, ductile iron pipe is well-equipped to handle changes in pipe diameter or size due to its inherent flexibility, adaptability, and robustness. Its composition, manufacturing capabilities, and jointing systems all contribute to its capacity to accommodate variations in pipe dimensions without compromising its performance.

Q: Disadvantages of ductile iron pipes: Compared with cast iron, ductile iron has an absolute advantage in strength. The tensile strength of ductile iron is 60K, while the tensile strength of cast iron is only 31k. The yield strength of ductile iron is 40K, while the cast iron does not show yield strength, and eventually breaks. The strength to cost ratio of ductile iron is far superior to that of cast iron.

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: What are the advantages of using ductile iron pipes over other materials?: There are several advantages of using ductile iron pipes over other materials. Firstly, ductile iron pipes have superior strength and durability compared to other materials such as PVC, HDPE, or concrete pipes. They have a high tensile strength, which means they can withstand higher pressure and can handle heavy loads without cracking or breaking. This makes them suitable for various applications, including water and sewage systems, as well as industrial pipelines. Secondly, ductile iron pipes have excellent corrosion resistance. They are typically coated with a protective layer, such as zinc or epoxy, which prevents the formation of rust and extends their lifespan. This makes them ideal for underground installations or in areas with aggressive soil conditions or corrosive substances. Another advantage of ductile iron pipes is their flexibility. They can be manufactured in various lengths, diameters, and angles, allowing for easy installation and adaptability to different project requirements. Additionally, their flexibility enables them to withstand ground movements, such as settlement or seismic activities, without causing significant damage. Furthermore, ductile iron pipes have a smooth internal surface, which reduces friction and improves flow efficiency. This results in lower energy consumption for pumping systems and reduced maintenance costs. Additionally, the smooth surface minimizes the risk of deposits or clogs, ensuring a consistent and uninterrupted flow of fluids. Lastly, ductile iron pipes have a long service life. When properly installed and maintained, they can last for over 100 years. This longevity not only reduces the need for frequent replacements but also provides a sustainable and cost-effective solution for infrastructure projects. In conclusion, the advantages of using ductile iron pipes over other materials include their superior strength, corrosion resistance, flexibility, smooth internal surface, and long service life. These qualities make them a reliable choice for various applications, providing efficient and durable solutions for water, sewage, and industrial pipelines.

Q: How can the ductile iron pipe be tested?: In the hydraulic test, the ductile iron pipe can not be close to the back, support, pipe end and so on. The inspection must be carried out after all stops

Q: Can ductile iron pipes be used in coastal or marine environments?: Yes, ductile iron pipes can be used in coastal or marine environments. Ductile iron is a type of cast iron that has been treated with magnesium to give it enhanced strength, ductility, and resistance to corrosion. This makes it suitable for use in environments with high levels of moisture, such as coastal or marine areas. Coastal and marine environments are known for their high levels of saltwater, which can cause corrosion in metal pipes. However, ductile iron pipes have excellent corrosion resistance due to their protective coating. This coating acts as a barrier between the pipe and the corrosive elements present in saltwater, preventing the formation of rust and extending the lifespan of the pipes. Furthermore, ductile iron pipes can withstand the high pressures and stresses associated with coastal and marine applications. They have a high tensile strength, allowing them to handle the weight of soil, rocks, and other materials that may be present in these environments. Additionally, ductile iron pipes are resistant to damage from external forces, such as waves or debris, making them a reliable choice for coastal or marine projects. In summary, ductile iron pipes are a suitable choice for coastal or marine environments due to their corrosion resistance, high tensile strength, and durability. They can reliably transport water or other fluids in these challenging environments while maintaining their structural integrity over an extended period of time.

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