DUCTILE IRON PIPES AND PIPE FITTINGS C25 CLASS DN900

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t

Supply Capability:: 30000 m.t/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 are ductile iron pipes protected against mechanical damage?: Various measures are implemented to protect ductile iron pipes from mechanical damage, ensuring their durability and longevity. One effective approach involves applying a protective coating to the exterior surface of the pipes. This coating acts as a barrier, safeguarding the ductile iron from physical abrasion, impact, and corrosion. Depending on specific requirements and environmental conditions, the coating can be composed of materials such as epoxy, polyethylene, or zinc. In addition to the protective coating, ductile iron pipes are designed with a high level of structural strength. They are manufactured to withstand significant pressure and external forces, making them less vulnerable to mechanical damage. The inherent strength of the material enables the pipes to resist deformation and cracking, even when subjected to heavy loads or ground movements. Moreover, proper bedding and backfilling techniques are employed during the installation of ductile iron pipes. This involves carefully placing the pipes in a prepared trench to ensure a stable foundation and minimize the risk of external forces causing damage. The correct backfill material is then used to provide support and prevent excessive pressure on the pipes. To further enhance protection against mechanical damage, additional measures such as concrete encasement or protective sleeves are often employed during the installation of ductile iron pipes. Concrete encasement involves surrounding the pipe with a layer of concrete, offering an extra layer of defense against external forces. Protective sleeves can also be utilized in areas prone to impact or where additional protection is necessary. Regular inspections and maintenance play a crucial role in ensuring the continuous protection of ductile iron pipes against mechanical damage. Periodic checks for signs of wear, corrosion, or other forms of damage enable timely repairs or replacements, preventing further deterioration. In summary, a combination of protective coatings, structural strength, proper installation techniques, and regular maintenance effectively safeguards ductile iron pipes against mechanical damage, guaranteeing their reliable performance and long lifespan in various applications.

Q: What is the expected leakage rate for ductile iron pipes?: The expected leakage rate for ductile iron pipes can vary depending on factors such as pipe age, condition, and maintenance practices. However, generally, ductile iron pipes are designed to have a low leakage rate of less than 1% of the total flow.

Q: Can ductile iron pipes be repaired if they are damaged?: Yes, ductile iron pipes can be repaired if they are damaged. The extent of the damage will determine the type of repair that is needed. In cases where the pipe is cracked or has small holes, a repair clamp or a stainless-steel sleeve can be used to seal the damaged area. These methods provide a temporary fix and allow for the flow of water to continue until a more permanent repair can be made. For more severe damage, such as large cracks or broken sections, a full replacement may be necessary. This involves cutting out the damaged section of the pipe and installing a new piece. This process requires specialized equipment and expertise, but it can effectively restore the functionality of the pipe. It is important to note that the repair of ductile iron pipes should be carried out by trained professionals who have experience in working with this type of material. This ensures that the repairs are done correctly and do not compromise the integrity and safety of the pipeline system. Regular inspection and maintenance of ductile iron pipes can help identify any potential issues early on and prevent extensive damage that may require replacement rather than repair.

Q: How can the ductile iron pipe depress the elbow so as to prevent it from being opened?: The elbow is the pipe that changes the direction of the pipe. According to the angle, there are 45 degrees and 90 degrees, 180 degrees, three most commonly used, in addition, according to the project needs, including 60 degrees and other non normal angle elbow.

Q: Are ductile iron pipes suitable for use in irrigation sprinkler systems?: Yes, ductile iron pipes are suitable for use in irrigation sprinkler systems. Ductile iron pipes are known for their durability, strength, and corrosion resistance, making them an ideal choice for various applications, including irrigation systems. These pipes have a high tensile strength and can withstand high pressure and heavy loads, which is essential for maintaining a consistent water supply to sprinkler systems. Additionally, ductile iron pipes have a long lifespan, reducing the need for frequent maintenance and replacement, making them a cost-effective option for irrigation systems. Overall, ductile iron pipes are a reliable and suitable choice for use in irrigation sprinkler systems.

Q: Can ductile iron pipes be used for hydropower projects?: Yes, ductile iron pipes can be used for hydropower projects. Ductile iron pipes are known for their durability, strength, and resistance to corrosion, which makes them suitable for various applications, including hydropower projects. They can handle high-pressure water flow, making them ideal for conveying water to turbines or other power generation equipment. Additionally, ductile iron pipes have a long lifespan, which reduces maintenance and replacement costs over time. Therefore, using ductile iron pipes in hydropower projects can contribute to the overall efficiency and reliability of the system.

Q: Does the cast iron pipe need separate corrosion protection?: Ductile iron is characterized by its ease of decay and deformation, so if it is not a particular requirement, there is no need to do it alone

Q: Can ductile iron pipes be recycled?: Indeed, it is possible to recycle ductile iron pipes. Ductile iron, a form of cast iron, possesses exceptional strength and endurance, rendering it a favored selection for numerous purposes, such as water and sewage pipelines. Once these pipes have surpassed their useful lifespan, they can undergo recycling and be transformed into fresh merchandise. The recycling procedure comprises the fusion of the ductile iron pipes to extract the iron, subsequently serving as a raw material for the creation of novel ductile iron goods. By recycling ductile iron pipes, not only do we conserve natural resources, but we also diminish the environmental impact associated with mining and the production of new substances.

Q: Are ductile iron pipes suitable for bridge piers or abutments?: Yes, ductile iron pipes are suitable for bridge piers or abutments. Ductile iron is known for its high strength and durability, making it a reliable choice for supporting heavy loads in bridge construction. Additionally, ductile iron pipes are corrosion-resistant, which is crucial for structures exposed to moisture and environmental factors.

Q: How are ductile iron pipes protected against erosion caused by high-velocity flow?: Various methods and techniques are used to protect ductile iron pipes from erosion caused by high-velocity flow. One effective method involves applying protective coatings on the inner surface of the pipes. These coatings act as a barrier between the flowing water and the pipe material, minimizing the abrasive effects of the fast flow. Depending on the specific requirements of the application, coatings such as epoxy, polyurethane, or cement-mortar lining may be used. In addition, manufacturers often design the pipes with increased wall thickness in areas prone to erosion, such as bends or sections with high flow velocity. This additional thickness provides extra strength and resistance against erosion. Another technique used to safeguard ductile iron pipes from erosion is the implementation of flow control devices, such as flow deflectors or fittings that reduce velocity. These devices help redirect the flow and decrease its speed, thus minimizing the impact on the pipe walls. Regular maintenance and inspections are also vital to prevent erosion. By monitoring the condition of the pipes and identifying any early signs of erosion, appropriate measures can be taken to address the issue before it worsens. This may involve repairing or replacing damaged sections of the pipes and implementing erosion control measures like sediment filters or flow restrictors. Overall, a combination of protective coatings, design considerations, flow control devices, and proactive maintenance strategies are employed to ensure adequate protection of ductile iron pipes against erosion caused by high-velocity flow.

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