DUCTILE IRON PIPE AND PIPE FITTINGS C CLASS DN300

DUCTILE IRON PIPE AND PIPE FITTINGS C CLASS DN300

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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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· 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 extreme temperatures?: Ductile iron pipe is renowned for its exceptional performance in extreme temperatures, thanks to its unique composition and manufacturing process. Its structural integrity remains uncompromised, allowing it to endure both high and low temperatures without issue. When it comes to high temperatures, ductile iron pipe showcases remarkable heat resistance. It can withstand temperatures of up to 1000 degrees Fahrenheit, making it perfect for applications involving hot liquids or gases, such as steam pipelines or industrial processes. Its strength and thermal stability enable it to maintain its shape and structural integrity even under extreme heat conditions, guaranteeing long-term reliability and safety. Similarly, ductile iron pipe excels in low-temperature environments. It can brave sub-zero temperatures without becoming brittle or prone to cracking, a common problem with materials like cast iron. This makes ductile iron pipe an ideal choice for applications in cold climates, such as water distribution systems in freezing temperatures. Moreover, the ability of ductile iron pipe to resist thermal expansion and contraction is another advantage in extreme temperatures. It has a low coefficient of thermal expansion, meaning it expands and contracts less compared to other materials. This property minimizes stress on the pipe, reducing the risk of leaks or failures caused by temperature fluctuations. In conclusion, ductile iron pipe demonstrates outstanding performance in extreme temperatures. Its heat resistance, ability to withstand low temperatures, and resistance to thermal expansion and contraction make it a reliable option for various applications, ensuring safe and efficient operations even in challenging environments.

Q: What is cast iron pipe?: According to its manufacturing methods can be divided into: sand, centrifugal pipe, straight pipe, continuous cast iron pipe and sand pipe.According to the material used, it can be divided into gray iron pipe, nodular cast iron pipe and high silicon iron pipe.

Q: How are ductile iron pipes restrained against axial thrust forces?: Ductile iron pipes are restrained against axial thrust forces through a combination of mechanical restraints and soil resistance. One common method of restraining axial thrust forces is by using thrust blocks. Thrust blocks are concrete structures that are built at bends, tees, and other locations where changes in direction occur in the pipeline. These blocks are designed to resist the axial forces and prevent the pipes from shifting or moving due to the pressure exerted by the flowing fluid. Additionally, mechanical restraints such as pipe restraints, thrust collars, and anchor blocks are used to provide further support and prevent axial movement. Pipe restraints are devices that are installed around the pipe and connected to adjacent structures, such as walls or concrete collars, to prevent movement. Thrust collars are also used to absorb and distribute the thrust forces generated by the flowing fluid. These collars are typically made of ductile iron or steel and are secured around the pipe to resist axial movement. Furthermore, soil resistance plays a significant role in restraining axial thrust forces. The weight of the soil surrounding the pipe creates frictional resistance, which helps counteract the axial forces. Proper trench backfilling, compaction, and adequate embedment of the pipe in the soil are essential to ensure effective soil resistance. In summary, ductile iron pipes are restrained against axial thrust forces through a combination of mechanical restraints such as thrust blocks, pipe restraints, and thrust collars, as well as soil resistance provided by proper trench backfilling and compaction. This comprehensive approach ensures that the pipes remain securely in place and can withstand the axial forces generated by the fluid flowing through them.

Q: What are the different joint restraint systems available for ductile iron pipe?: There are several different joint restraint systems available for ductile iron pipe. These systems are designed to prevent movement and separation of the pipe at the joints, ensuring a secure and leak-free connection. Some of the common joint restraint systems for ductile iron pipe include: 1. Mechanical Joint Restraint: This system consists of a mechanical joint adapter and a restraining gland that provides axial restraint. The joint adapter is bolted to the pipe, while the restraining gland is bolted to the adjacent pipe or structure, preventing any movement. 2. Push-on Joint Restraint: In this system, a push-on joint is used along with a restraining gland that is bolted to the pipe or structure. The gland provides axial restraint by gripping the pipe and preventing it from moving. 3. Flex-Ring Joint Restraint: This system utilizes a flexible rubber ring that is installed inside the pipe's bell. The ring provides radial restraint by expanding against the pipe, ensuring a tight and secure connection. 4. Harness Joint Restraint: This system consists of a harness that is wrapped around the pipe and connected to a restraining gland. The harness provides both axial and radial restraint, keeping the pipe in place and preventing any movement. 5. Grip-Lock Joint Restraint: This system utilizes a wedge-shaped restraint that is inserted into the pipe's bell. The wedge expands and locks into place, providing both axial and radial restraint. 6. Restrained Joint System: This system incorporates a combination of mechanical and flexible joint restraints. It typically includes a mechanical joint adapter, a flexible joint restraint, and a restraining gland, providing both axial and radial restraint. These joint restraint systems are designed to meet specific application requirements and are often specified by engineers based on factors such as pipe diameter, operating pressure, and soil conditions. Each system has its own advantages and limitations, and the selection depends on the specific project needs and constraints.

Q: Can ductile iron pipe be used for gas distribution systems?: Yes, ductile iron pipe can be used for gas distribution systems. Ductile iron is a strong and durable material that is resistant to corrosion, making it suitable for underground applications. It has been widely used in gas distribution systems for many years due to its ability to withstand high pressure and provide a reliable and long-lasting solution. Additionally, ductile iron pipes are known for their flexibility, which allows for easier installation and maintenance. However, it is important to ensure that the specific requirements and standards of gas distribution systems are met when using ductile iron pipes to ensure the safety and efficiency of the system.

Q: Can ductile iron pipes be used for oil and gas pipelines?: Ductile iron pipes can indeed be utilized for oil and gas pipelines. This robust and long-lasting material possesses corrosion resistance, rendering it ideal for the transportation of oil and gas across extensive distances. Moreover, ductile iron pipes display exceptional pressure-bearing capabilities, enabling them to endure the high pressures commonly associated with oil and gas transportation. Additionally, the installation and maintenance of ductile iron pipes are relatively straightforward, further enhancing their suitability for oil and gas pipelines. Nevertheless, it is crucial to acknowledge that the specific application and conditions of the pipeline necessitate careful consideration. Therefore, seeking advice from industry experts is strongly recommended to ensure the appropriate selection and installation of ductile iron pipes for oil and gas transportation.

Q: What is the expected thrust restraint method for ductile iron pipes?: The expected thrust restraint method for ductile iron pipes is typically achieved through the use of mechanical joint restraints. These restraints are designed to resist the axial forces or thrust generated by the fluid pressure inside the pipe. The most common types of mechanical joint restraints used for ductile iron pipes include thrust blocks, tie rods, and harness restraints. Thrust blocks are concrete structures placed around the pipe joints to resist the thrust forces. They are typically constructed at bends, tees, and other changes in direction to prevent the movement of the pipes. Tie rods are another common method of thrust restraint, where steel rods are anchored to the pipe and secured to an immovable structure to counteract the thrust forces. Harness restraints consist of a series of steel rods or cables that encircle the pipe and are anchored to the ground on either side. These restraints distribute the axial forces along the length of the pipe, preventing movement and ensuring stability. The specific thrust restraint method used for ductile iron pipes may vary depending on factors such as pipe diameter, fluid pressure, soil conditions, and local regulations. It is important to consult with industry standards, engineering guidelines, and local authorities to determine the appropriate thrust restraint method for a given application.

Q: Are ductile iron pipes suitable for use in saltwater environments?: Yes, ductile iron pipes are suitable for use in saltwater environments. Ductile iron is highly resistant to corrosion and can withstand the corrosive effects of saltwater, making it a reliable choice for piping systems in such environments.

Q: Can ductile iron pipes be used for underground wastewater outfalls?: Yes, ductile iron pipes can be used for underground wastewater outfalls. Ductile iron pipes are a popular choice for underground applications due to their durability, strength, and corrosion resistance. They are designed to withstand high pressure and external loading, making them suitable for transporting wastewater over long distances and depths. Additionally, ductile iron pipes have a smooth internal surface, which helps to minimize friction and prevent the buildup of sediments or debris that could potentially block the flow of wastewater. Therefore, ductile iron pipes are commonly used in underground wastewater systems, including outfalls, to ensure efficient and reliable wastewater transport while minimizing the risk of pipe failure or blockages.

Q: How is ductile iron pipe protected against external corrosion?: To ensure the durability and longevity of ductile iron pipe, various methods are employed to protect it from external corrosion. One commonly used method is the application of protective coatings. Typically, a layer of zinc or asphaltic material is applied to the pipe, creating a barrier between the iron and the surrounding environment. This coating prevents direct contact between the pipe and corrosive elements like soil, moisture, and chemicals, thereby reducing the risk of corrosion. Another layer of protection is provided by wrapping the ductile iron pipe with polyethylene or polypropylene tape. This tape acts as a physical barrier, shielding the pipe from moisture and other potentially corrosive substances. Great care is taken during the application process to ensure complete coverage and adherence to the pipe's surface. Cathodic protection is also commonly used to safeguard ductile iron pipes from external corrosion. This technique involves installing sacrificial anodes or impressed current systems near the pipe. These anodes generate a protective electrical current that counteracts the corrosion process, effectively inhibiting the deterioration of the pipe's surface. Proper installation practices also play a crucial role in preventing external corrosion. It is important to bury the pipe at an appropriate depth, ensuring adequate soil coverage. This minimizes exposure to corrosive elements and maintains the integrity of the protective coatings. Additionally, using corrosion-resistant bedding materials and employing proper backfilling techniques can further enhance the pipe's resistance to external corrosion. In conclusion, a combination of protective coatings, tape wrapping, cathodic protection systems, and proper installation practices ensures the protection of ductile iron pipe against external corrosion. These measures work together to provide a strong defense against corrosive forces, ensuring the pipe's reliability and longevity in various applications.

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