DUCTILE IRON PIPEs K9 CLASS DN300

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 3 pc

Supply Capability:: 3000 pc/month

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Duct Iron Pipe DI Pipe ISO 2531 DN 350-600mm

· 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 lubricants for the installation of ductile iron pipes for tap water?: The lubricant can also be used for cooling, cleaning and preventing pollution. In order to improve lubricity, suitable additives may be added to certain lubricants.

Q: Can ductile iron pipes be used for drainage systems in airports?: Yes, ductile iron pipes can be used for drainage systems in airports. Ductile iron pipes are known for their strength, durability, and resistance to corrosion, making them suitable for various applications, including drainage systems. They can effectively handle the high flow rates and heavy loads typically associated with airports, ensuring efficient drainage and preventing water accumulation on runways, taxiways, and other areas.

Q: How do ductile iron pipes handle ground movement or settlement?: Ductile iron pipes are renowned for their remarkable strength and flexibility, enabling them to effectively manage ground movement or settlement. Ground movement or settlement pertains to the natural shifts or settling of the earth's surface, which can exert stress on subterranean infrastructure such as pipes. Concerning ground movement, ductile iron pipes possess the advantage of enduring and absorbing the pressure and movement caused by shifting soil. The material's ductility permits the pipes to flex and bend to a certain extent without fracturing. This flexibility aids in distributing the load and minimizing the potential for harm. Additionally, ductile iron pipes exhibit high resistance to cracking or fracturing, even under extreme circumstances. This resilience stems from the material's unique microstructure, which imparts excellent tensile strength and impact resistance. Consequently, ductile iron pipes can withstand external forces and ground settlement without compromising their integrity. To further augment their capacity to handle ground movement or settlement, ductile iron pipes are frequently installed using flexible joints. These joints allow for slight movement and accommodate any shifting or settling of the ground. Furthermore, proper bedding and backfilling techniques are employed during installation to provide added support and stability. Overall, ductile iron pipes possess a proven track record in managing ground movement or settlement. Their strength, flexibility, and resistance to cracking establish them as a dependable choice for subterranean infrastructure, ensuring the durability and efficiency of water distribution systems.

Q: What are the recommended bedding and backfill materials for ductile iron pipe?: The recommended bedding and backfill materials for ductile iron pipe include a combination of granular materials such as sand, gravel, or crushed stone. These materials provide support and stability to the pipe, ensuring proper alignment and preventing damage during installation and operation. For bedding, a layer of sand is typically used to create a uniform and level surface for the pipe to rest on. This helps distribute the load evenly along the pipe's length and reduces the potential for stress concentration. Backfill material is used to fill the remaining space around the pipe once it is properly bedded. It is crucial to select a material that offers good compaction and drainage properties to prevent settling and potential damage to the pipe. Commonly used backfill materials include crushed stone or gravel, which provide stability and allow for proper compaction. It is important to follow the recommendations of the pipe manufacturer and any relevant industry standards when selecting bedding and backfill materials for ductile iron pipe. These materials should meet the specified size and quality requirements to ensure the long-term performance and durability of the pipe system. Additionally, local regulations and soil conditions should also be taken into consideration when determining the appropriate bedding and backfill materials for ductile iron pipe installations.

Q: What is the expected surge pressure rating of ductile iron pipes?: The expected surge pressure rating of ductile iron pipes can vary depending on factors such as pipe diameter, wall thickness, and application. However, generally speaking, ductile iron pipes have a surge pressure rating that ranges from 350 psi to 500 psi.

Q: What are the typical joint sealing requirements for ductile iron pipes under pressure?: The typical joint sealing requirements for ductile iron pipes under pressure involve the use of gaskets and mechanical joints to ensure a leak-free connection. Gaskets are typically made of rubber or synthetic materials and are placed between the pipe ends to create a tight seal. These gaskets are designed to withstand the pressure of the flowing fluid and prevent any leakage. They also provide flexibility to accommodate for any slight misalignment or movement of the pipes. Mechanical joints, such as push-on joints or restrained joints, are another common method of sealing ductile iron pipes. These joints consist of a mechanical connection that securely holds the pipe ends together. They can provide a reliable seal without the need for additional gaskets. In addition to gaskets and mechanical joints, proper installation techniques are crucial for ensuring effective joint sealing. This includes proper alignment of the pipes, correct tightening of bolts or screws, and the use of appropriate lubricants or sealants. It is important to note that the specific joint sealing requirements for ductile iron pipes under pressure may vary depending on the application, the type of fluid being transported, and the applicable industry standards or regulations. Therefore, it is essential to consult the manufacturer's guidelines and relevant codes to determine the appropriate joint sealing requirements for a specific project.

Q: Can ductile iron pipes be made of flexible waterproof sleeves?: The casing can be divided into ordinary casing to be 2-4 cm thick than the pipe to be used and fixed to the wall or plate, and the pipe passes through it. Flexible bushing - between the casing and pipe, with flexible material to seal the sealing effect. Rigid casing - that is, between the casing and pipe with rigid material sealed to achieve sealing effect. Waterproof casing - is the use of the casing of the environment is to prevent liquid leakage or leakage into place (such as the pool, septic tanks, basement, etc.) is on the outer wall of the bushing is not less than 1 times increase waterproof wing, this wall is poured in the casing as a whole, not because of swelling shrinkage factor and crack and leakage.

Q: How is ductile iron pipe protected against external corrosion?: Ductile iron pipe is protected against external corrosion through a process called external coating. This involves applying a layer of protective coating, such as asphaltic or epoxy, on the outside surface of the pipe. The coating acts as a barrier, preventing moisture and corrosive substances from coming into contact with the iron, thus reducing the risk of corrosion. Additionally, cathodic protection methods, such as applying sacrificial anodes or using impressed current systems, may be employed to further enhance the corrosion resistance of the ductile iron pipe.

Q: Can ductile iron pipes be used for underground river crossings?: Yes, ductile iron pipes can be used for underground river crossings. Ductile iron pipes have excellent strength and durability, making them suitable for various applications, including underground river crossings. They have high tensile strength and are resistant to corrosion and external loads, making them an ideal choice for such installations.

Q: Can ductile iron pipes be used for underground cooling water systems?: Yes, ductile iron pipes can be used for underground cooling water systems. Ductile iron is known for its strength, durability, and corrosion resistance, making it suitable for various applications, including underground installations. It can withstand the pressure and temperature requirements of cooling water systems, providing a reliable and long-lasting solution.

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