DUCTILE IRON PIPES AND PIPE FITTINGS K8CLASS DN1000

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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 is ductile iron pipe different from cast iron pipe?: Ductile iron pipe and cast iron pipe are commonly used in plumbing and drainage applications, but they have differences in composition, strength, and flexibility. To begin with, ductile iron pipe is made from a different iron alloy than cast iron pipe. Ductile iron contains more carbon and silicon, which gives it increased strength and durability. On the other hand, cast iron pipe is made from gray iron, which has higher carbon content but lacks the flexibility of ductile iron. Moreover, ductile iron pipe is renowned for its superior strength and resistance to impact. It can withstand higher pressures and is less likely to crack or break under heavy loads or external forces. Cast iron pipe, although strong, is more brittle and prone to fractures and failures. Another significant distinction is the flexibility of ductile iron pipe. It possesses greater flexibility and can endure bending and deformation without fracturing. This flexibility facilitates easier installation, particularly in areas with uneven terrain or where ground movement may occur. In contrast, cast iron pipe is less flexible and more rigid, making it unsuitable for applications that require flexibility. Additionally, ductile iron pipe has a smoother interior surface compared to cast iron pipe. This smoothness reduces friction, enhances flow efficiency, and minimizes the accumulation of sediment and deposits within the pipe, resulting in improved water flow and reduced maintenance needs. In conclusion, ductile iron pipe sets itself apart from cast iron pipe due to its composition, strength, flexibility, and smooth interior surface. Ductile iron offers superior strength, impact resistance, and flexibility, making it the preferred choice in various plumbing and drainage applications.

Q: How do ductile iron pipes handle water hammer in high-rise buildings?: Ductile iron pipes are well-suited to handle water hammer in high-rise buildings due to their inherent strength and durability. These pipes have the ability to withstand sudden changes in water flow and pressure, effectively reducing the impact of water hammer. Additionally, ductile iron pipes have excellent sound attenuation properties, which further minimizes the noise and vibrations caused by water hammer. Overall, ductile iron pipes offer reliable and long-lasting performance, making them an ideal choice for managing water hammer in high-rise buildings.

Q: How are ductile iron pipes protected against external corrosion?: Ductile iron pipes are protected against external corrosion through the application of protective coatings such as polyethylene, epoxy, or zinc. These coatings act as a barrier between the pipe and the surrounding environment, preventing contact with corrosive elements such as water, soil, or chemicals. Additionally, cathodic protection techniques, such as sacrificial anodes or impressed current systems, may also be employed to further enhance the corrosion resistance of ductile iron pipes.

Q: Are ductile iron pipes suitable for installation in areas with high groundwater table?: Indeed, areas with a high groundwater table are suitable for the installation of ductile iron pipes. These pipes are renowned for their exceptional strength and durability, rendering them perfect for underground installations. They possess the ability to endure the external pressure exerted by groundwater without any deformation or collapse. In addition, their outstanding resistance to corrosion shields them from the potentially harmful impact of groundwater. Consequently, ductile iron pipes can be confidently utilized in areas with a high groundwater table, ensuring the establishment of dependable and enduring water supply infrastructure.

Q: What is the minimum cover requirement for ductile iron pipes?: The minimum cover requirement for ductile iron pipes is typically determined by the specific project or engineering design considerations. However, as a general guideline, the minimum cover requirement for ductile iron pipes is often recommended to be at least 2 feet (or 0.6 meters) from the top of the pipe to the finished ground surface. This minimum cover requirement helps to provide adequate protection to the pipe from external loads, soil settlement, and potential damage from construction activities. It also helps to maintain the structural integrity and longevity of the ductile iron pipe system. It is important to note that local building codes, industry standards, and project specifications may dictate specific minimum cover requirements, so it is crucial to consult these resources for accurate and up-to-date information.

Q: What are the different joint types available for ductile iron pipes?: Ductile iron pipes offer various joint types that are essential for maintaining the integrity and reliability of the pipeline system. 1. The push-on joint is the most prevalent joint used for ductile iron pipes. It involves inserting a rubber gasket into the bell end of the pipe and then pushing the spigot end into the bell, ensuring a tight seal. This joint is easy to assemble, quick, and has excellent resistance against soil movement and water pressure. 2. The mechanical joint involves a gland and follower that are secured around the spigot end of the pipe using bolts and nuts. It provides a robust and durable connection and is commonly used for larger diameter pipes or applications that expect higher pressure or thrust loads. 3. Flanged joints are utilized when connecting pipes to other components like valves or fittings. The pipe ends are machined and equipped with flanges that are bolted together using gaskets, ensuring a secure connection. These joints find frequent use in industrial applications or situations requiring frequent disassembly. 4. Restrained joints are designed to withstand significant external forces and prevent separation or pulling apart of the pipe. They typically combine mechanical joint components, such as bolts and glands, with additional restraining elements like welded or bolted-on restraints. These joints are commonly employed in high-pressure applications or situations where substantial external forces are present. Choosing the appropriate joint type is crucial and depends on factors such as pipeline design, operating conditions, and installation requirements. Seeking guidance from experienced engineers or pipe manufacturers can aid in determining the most suitable joint type for a specific ductile iron pipe application.

Q: How are ductile iron pipes tested for hydrostatic pressure?: Ductile iron pipes are tested for hydrostatic pressure through a process called hydrostatic testing. This involves filling the pipes with water and pressurizing them to a specific level, usually higher than their intended operating pressure. The pipes are then monitored for any leaks or excessive deformation under the applied pressure. This test ensures the strength and integrity of the ductile iron pipes before they are put into service.

Q: How are ductile iron pipes protected during transportation and storage?: Various methods are employed to protect ductile iron pipes during transportation and storage, ensuring their integrity and preventing potential damage. The first step involves applying a protective layer, such as epoxy or zinc, to act as a barrier against corrosion. This coating effectively safeguards the pipes from moisture and other corrosive elements during transit and storage. To further safeguard the pipes, they are often bundled together and secured with straps or bands, preventing any movement or shifting that could cause mechanical damage. This bundling not only ensures the pipes remain intact but also facilitates easier handling and transportation in an organized manner. During transportation, the pipes are typically loaded onto pallets or placed in crates, providing additional protection and stability. This minimizes the risk of accidental impact or rough handling that may result in cracks or fractures. Proper labeling and marking of the pipes is crucial to ensure appropriate handling. This includes displaying handling instructions, weight limits, and pipe specifications, preventing mishandling and damage during transportation. Equally important are the storage conditions for maintaining the integrity of ductile iron pipes. They should be stored in a clean, dry, and well-ventilated area, protecting them from moisture and humidity. Direct sunlight and extreme temperatures should be avoided to prevent any potential degradation of the protective coating. In conclusion, protecting ductile iron pipes during transportation and storage involves the application of protective coatings, bundling and securing, suitable packaging materials, proper handling and labeling, and storage in appropriate conditions. These measures guarantee the pipes' quality and structural integrity, ensuring they arrive at their destination in optimal condition.

Q: Can ductile iron pipes be used for rainwater harvesting systems?: Certainly, rainwater harvesting systems can utilize ductile iron pipes. Renowned for their robustness and resilience, ductile iron pipes prove to be fitting for a range of purposes, including rainwater harvesting. These pipes exhibit exceptional resistance to corrosion and are capable of withstanding considerable pressure, thereby ensuring the efficient conveyance of rainwater from the point of collection to storage tanks or distribution networks. Moreover, their impressively long lifespan diminishes the necessity for frequent replacements, rendering them a cost-effective option for rainwater harvesting systems.

Q: How are ductile iron pipes different from cast iron pipes?: Ductile iron pipes are different from cast iron pipes in terms of their composition and properties. Ductile iron pipes are made from a type of cast iron that has been treated with magnesium to improve its strength and flexibility. This makes ductile iron pipes more durable, impact-resistant, and less prone to cracking or breaking compared to traditional cast iron pipes. Additionally, ductile iron pipes have a higher tensile strength, allowing them to withstand higher internal and external pressures. In summary, ductile iron pipes are a more modern and advanced version of cast iron pipes, offering improved performance and longevity.

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