DUCTILE IRON PIPES AND PIPE FITTINGS K9 CLASS 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 are ductile iron pipes protected against external soil loads?: Several methods are employed to protect ductile iron pipes from external soil loads. An important approach involves applying a protective coating to the exterior surface of the pipe, which acts as a barrier between the iron and the surrounding soil. This coating effectively prevents direct contact and reduces the risk of corrosion. Another means of safeguarding the pipes is by utilizing carefully selected trench backfill materials. These materials are compacted and chosen with great care to provide adequate support and distribute the load evenly on the pipe. By doing so, the stress and pressure exerted by the surrounding soil are minimized. Moreover, the design and installation of the pipe system play a crucial role in protecting against external soil loads. Typically, the pipes are laid in a meticulously engineered trench that incorporates appropriate bedding and backfilling techniques. This ensures stability and minimizes the potential for damage. Additionally, proper pipe jointing techniques are essential for protection against external soil loads. The joints are often designed to be flexible, allowing for some movement and accommodating external loads. This distributes stress along the length of the pipe and prevents concentrated pressure points that could lead to failure. In conclusion, the effective protection of ductile iron pipes against external soil loads is achieved through a combination of protective coatings, appropriate backfill materials, proper installation techniques, and joint design. This guarantees the durability and reliability of the pipe system, even in challenging soil conditions.

Q: Can ductile iron pipes be used in areas with high levels of hydrogen sulfide gas?: Ductile iron pipes can generally be used in areas with high levels of hydrogen sulfide gas, but it is important to consider certain factors before making a decision. Hydrogen sulfide gas is corrosive and can potentially cause damage to metal pipes over time. While ductile iron is known for its durability and corrosion resistance, prolonged exposure to high levels of hydrogen sulfide gas can still lead to corrosion and deterioration. To mitigate the risks associated with hydrogen sulfide gas, it is advisable to assess the specific conditions of the area beforehand. This includes conducting a comprehensive analysis of the hydrogen sulfide gas concentration, pH levels, temperature, and other factors that may influence corrosion. Consulting with experts or engineering professionals who specialize in corrosion control can provide valuable insights and guidance. In some cases, additional measures may be necessary to protect ductile iron pipes. Coating the interior and exterior surfaces of the pipes with protective materials, such as epoxy or polyethylene, can provide an extra layer of defense against corrosion. Alternatively, cathodic protection systems can be employed to protect the pipes by applying a low voltage electrical current that mitigates the corrosion process. Ultimately, the decision to use ductile iron pipes in areas with high levels of hydrogen sulfide gas should be based on a thorough understanding of the specific conditions and implementing appropriate corrosion prevention measures. Regular monitoring and maintenance should also be conducted to ensure the pipes are functioning optimally and to address any potential issues before they escalate.

Q: How are ductile iron pipes protected against internal corrosion caused by chemicals?: To safeguard against internal corrosion caused by chemicals, ductile iron pipes implement various protective measures. Primarily, these pipes are equipped with either a cement mortar lining or an epoxy coating, creating a barrier between the water or sewage's chemical substances and the iron material. This barrier effectively prevents direct contact, thereby averting corrosion. Additionally, a corrosion-resistant polymer or bituminous coating is frequently applied to the pipes' exterior. This supplementary layer of protection shields the pipes from potential chemical exposure originating externally. Moreover, cathodic protection is a commonly employed technique to counter internal corrosion. Sacrificial anodes, typically composed of zinc or magnesium, are affixed to the pipes. Over time, these anodes undergo corrosion instead of the iron, sacrificing themselves to safeguard the pipes against chemical-induced corrosion. Furthermore, regular maintenance and monitoring play a crucial role in the prevention and rectification of corrosion issues. This entails routine inspections, cleaning, and prompt repair of any corroded or damaged areas. Overall, the integration of lining, external coating, cathodic protection, and maintenance practices ensures the comprehensive protection of ductile iron pipes against internal corrosion caused by chemicals. This prolongs their lifespan and guarantees the integrity of the pipeline system.

Q: What are the different coatings available for ductile iron pipe?: There are several different coatings available for ductile iron pipe, each offering unique benefits and protection for various applications. Some of the most commonly used coatings include: 1. Cement Mortar Lining: This coating involves applying a layer of cement mortar to the interior surface of the pipe. It provides excellent resistance against corrosion and abrasion, making it suitable for transporting water and sewage. 2. Bituminous Coating: Bituminous coatings consist of a layer of asphalt or coal tar pitch applied to the pipe surface. This coating offers good protection against corrosion and is often used for underground pipes in water and wastewater systems. 3. Fusion-Bonded Epoxy (FBE) Coating: FBE coatings are created by electrostatically applying a layer of epoxy powder to the pipe surface, followed by curing it at high temperatures. This coating provides exceptional resistance against corrosion and is commonly used in applications where the pipe is exposed to harsh environments or corrosive substances. 4. Polyurethane Coating: Polyurethane coatings offer excellent resistance against abrasion, impact, and corrosion. They are often used for pipes that are exposed to abrasive materials or require additional protection against external damage. 5. Zinc Coating: Zinc coatings, also known as galvanized coatings, involve applying a layer of zinc to the pipe's surface. This coating provides excellent protection against corrosion, making it suitable for pipes that are exposed to moisture and aggressive environments. 6. Polyethylene Encasement: Polyethylene encasement involves wrapping the pipe with a layer of polyethylene film or tape. This coating provides a physical barrier against corrosion and is commonly used in conjunction with other coatings for added protection. It is essential to consider the specific requirements of the application, such as the type of fluid being transported and the environmental conditions, to determine the most suitable coating for ductile iron pipes.

Q: Are ductile iron pipes suitable for bridge crossings?: Yes, ductile iron pipes are suitable for bridge crossings. Ductile iron pipes are known for their high strength and durability, making them a reliable choice for various applications, including bridge crossings. These pipes can withstand heavy loads and are resistant to corrosion, which is especially important in bridge crossings where they may be exposed to harsh environmental conditions. Additionally, ductile iron pipes have the ability to flex and withstand ground movement, making them ideal for bridge crossings where the ground may shift or settle over time. Overall, ductile iron pipes offer the necessary characteristics to ensure the safe and efficient transportation of fluids or materials across bridges.

Q: Can ductile iron pipe be used for marine and offshore applications?: Yes, ductile iron pipe can be used for marine and offshore applications. Ductile iron is known for its high strength and durability, making it suitable for various environments, including those with exposure to saltwater and harsh conditions. It is commonly used in marine and offshore projects due to its resistance to corrosion, impact, and pressure. Additionally, ductile iron pipes have proven to be cost-effective and reliable for transporting fluids in these challenging environments.

Q: Can ductile iron pipes be used for cooling water systems?: Indeed, cooling water systems can utilize ductile iron pipes. Renowned for their resilience, robustness, and resistance to corrosion, ductile iron pipes are a fitting choice for various applications, including cooling water systems. With the ability to withstand high pressure and temperature fluctuations, these pipes excel in circulating and transporting cooling water. Moreover, their smooth interior surface mitigates friction, diminishing the likelihood of scaling or blockages and enabling the efficient flow of cooling water. Consequently, ductile iron pipes emerge as a dependable and efficient option for cooling water systems.

Q: Can ductile iron pipe be used for cooling water systems?: Yes, ductile iron pipe can be used for cooling water systems. Ductile iron pipe has excellent corrosion resistance, high tensile strength, and is capable of withstanding high-pressure conditions, making it suitable for various applications, including cooling water systems. Its durable and versatile nature allows it to effectively transport and distribute cooling water without the risk of leakage or failure. Additionally, ductile iron pipe is known for its long service life and low maintenance requirements, making it a cost-effective choice for cooling water systems.

Q: Ductile iron pipe joint leakage: The main reason for the leakage is that the installation is not in place, resulting in the loss of the apron. Sealed with cement or pipe head Hough section. Recommend the use of Hough section fast and convenient, and there is no menace from the rear.

Q: Can ductile iron pipe be used for municipal water supply?: Indeed, municipal water supply systems have extensively relied on ductile iron pipe for numerous years, owing to its exceptional durability, strength, and corrosion resistance. Its suitability for underground use is evident in its ability to endure high pressure and substantial loads. Moreover, ductile iron pipe boasts an extended lifespan, often surpassing 100 years, making it a fiscally prudent option for municipal water supply systems. In summary, ductile iron pipe serves as a dependable and prevalent material for guaranteeing the secure and effective transportation of water to communities.

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