DUCTILE IRON PIPES AND PIPE FITTINGS K7 CLASS DN500

DUCTILE IRON PIPES AND PIPE FITTINGS K7 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 is cast iron pipe, specification for cast iron pipe?: A cast pipe made of cast iron. Cast iron pipes are used for water supply, drainage and gas transmission lines. They include cast iron pipes and pipe fittings.

Q: What is the expected fire resistance of ductile iron pipes?: The expected fire resistance of ductile iron pipes is high due to their ability to withstand high temperatures without losing structural integrity. They have a melting point of approximately 1200°C, making them suitable for applications where fire protection is crucial.

Q: Can ductile iron pipes be used for trenchless installation methods?: Yes, ductile iron pipes can be used for trenchless installation methods. Trenchless installation methods are techniques used to install underground pipes without the need for extensive digging or trenching. Ductile iron pipes are a strong and durable choice for these methods due to their high tensile strength and flexibility. They can be installed using various trenchless techniques such as horizontal directional drilling (HDD), pipe bursting, and slip lining. These methods allow for efficient and cost-effective installation of ductile iron pipes without disrupting the surrounding environment. Additionally, the corrosion resistance of ductile iron pipes makes them suitable for trenchless installations in various soil conditions and environments.

Q: What is the difference between ductile iron pipes and cast iron pipes?: Ductile iron pipes and cast iron pipes have different compositions, properties, manufacturing processes, and applications. Ductile iron pipes are made from a type of cast iron known as ductile iron, which contains higher levels of carbon, silicon, and other alloying elements like magnesium. On the other hand, cast iron pipes are made from regular cast iron, which has a higher carbon content and lower levels of alloying elements. In terms of properties, ductile iron pipes are recognized for their high tensile strength, flexibility, and durability. They can withstand higher pressure and have a greater resistance to impact, making them suitable for applications that demand robust performance. Conversely, cast iron pipes are more brittle and fragile, making them susceptible to cracking or breaking under pressure or impact. The manufacturing process differs as well. Ductile iron pipes are formed through centrifugal casting, in which molten ductile iron is poured into a spinning mold. This centrifugal force aids in the even distribution of the molten metal, resulting in a strong and uniform pipe. On the other hand, cast iron pipes are made using sand casting, where molten cast iron is poured into a mold made of compacted sand. This method is less precise and can result in variations in the final product. In terms of applications, ductile iron pipes are commonly used in water and sewage systems, as well as in industrial pipelines that require high-pressure resistance. Cast iron pipes, on the other hand, are typically used in non-pressure applications such as drainage systems or underground sewer lines. To summarize, ductile iron pipes and cast iron pipes differ in their composition, properties, manufacturing processes, and applications. Ductile iron pipes offer greater strength, flexibility, and durability, making them suitable for high-pressure applications, while cast iron pipes are more brittle and commonly used in non-pressure applications.

Q: Can ductile iron pipe be used for compressed air systems?: Yes, ductile iron pipe can be used for compressed air systems. Ductile iron is known for its durability and high strength, making it suitable for handling the pressure requirements of compressed air systems. However, it is important to consider factors such as pipe sizing, pressure ratings, and compatibility with other system components to ensure safe and efficient operation.

Q: How do ductile iron pipes perform in high-altitude areas?: Ductile iron pipes perform well in high-altitude areas as they are highly resistant to corrosion and can withstand extreme temperature variations. The material's flexibility and strength make it suitable for handling increased pressure caused by altitude changes, ensuring reliable water distribution systems even in mountainous regions.

Q: What is the expected roughness coefficient of ductile iron pipes?: The roughness coefficient of ductile iron pipes can differ based on different factors like pipe diameter, age, and condition, resulting in variations. However, typically, the roughness coefficient for ductile iron pipes falls within the range of 0.01-0.015 mm. This value signifies the average roughness of the pipe's internal surface and plays a crucial role in hydraulic calculations for establishing the flow characteristics and pressure losses within the pipe network. It is worth mentioning that these values are approximate and subject to change depending on specific pipe conditions and applications.

Q: What are the different methods for cutting ductile iron pipe?: The cutting of ductile iron pipe can be done in various ways, depending on the project's specific needs and limitations. Some commonly used methods include: 1. Manual Cutting: To cut through the ductile iron pipe, one can employ a handheld saw or grinder equipped with an abrasive cutting wheel. While this method is simple and cost-effective, it can be laborious and time-consuming for larger pipe sizes. 2. Mechanical Cutting: Specialized machinery, such as bandsaws, pipe cutters, or hydraulic cutting machines, can be utilized to mechanically cut through the ductile iron pipe. These machines offer faster and more precise cuts, especially for larger pipe sizes. However, they tend to be more expensive and require skilled operators. 3. Torch Cutting: Also known as oxyfuel cutting, torch cutting involves heating the ductile iron pipe using a torch and then introducing a high-pressure oxygen stream to facilitate a chemical reaction that cuts through the metal. This method is effective for thick-walled ductile iron pipes but necessitates proper safety precautions due to the significant heat and sparks it generates. 4. Plasma Arc Cutting: The utilization of a high-velocity jet of ionized gas (plasma) to melt and cut through the ductile iron pipe characterizes plasma arc cutting. This method is ideal for precision and efficiency when cutting through thick-walled pipes. However, it can be more costly and may require specialized equipment and training. 5. Waterjet Cutting: Waterjet cutting involves using a high-pressure jet of water mixed with an abrasive material to cut through the ductile iron pipe. This method offers high precision and does not generate heat or sparks, making it suitable for sensitive environments. However, it tends to be slower and more expensive compared to other cutting methods. When selecting the appropriate method for cutting ductile iron pipe, factors such as pipe size, project requirements, budget, and safety must be taken into consideration. Consulting professionals or experts in the field can assist in determining the most suitable method for a specific project.

Q: Are ductile iron pipes suitable for use in hydropower projects?: Yes, ductile iron pipes are suitable for use in hydropower projects. Ductile iron pipes are known for their strength, durability, and resistance to corrosion, making them ideal for carrying water in hydropower projects. Additionally, their ability to withstand high pressure and adaptability to various ground conditions further supports their suitability for such projects.

Q: What is the maximum allowable deflection for ductile iron pipes?: Industry standards and guidelines, like those from the American Water Works Association (AWWA) and the Ductile Iron Pipe Research Association (DIPRA), typically specify the maximum allowable deflection for ductile iron pipes. These standards state that the maximum allowable deflection should be a certain percentage of the pipe's outside diameter. AWWA C150/A21.50 and DIPRA's Technical Bulletin No. 10 explain that the maximum allowable deflection for ductile iron pipes can vary depending on factors such as pipe size, wall thickness, and soil conditions. However, a general rule is that the maximum allowable deflection should not exceed 3% of the pipe's outside diameter. It is important to keep in mind that going beyond the maximum allowable deflection can lead to potential structural problems and reduced performance of the ductile iron pipe. Therefore, it is crucial to follow the industry standards and guidelines to ensure the proper installation and functioning of ductile iron pipes.

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