DUCTILE IRON PIPES AND PIPE FITTINGS C CLASS DN700

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 22 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: Are ductile iron pipes prone to external corrosion?: Ductile iron pipes are generally not prone to external corrosion. This is due to the protective nature of the material itself. Ductile iron pipes are made of a strong and durable material that contains a significant amount of graphite. The graphite acts as a natural barrier against external corrosion, preventing the pipe from being affected by rust or other forms of oxidation. Additionally, ductile iron pipes are often coated with a protective layer, such as cement mortar or polyethylene, to further enhance their resistance to corrosion. These coatings provide an extra layer of protection, preventing any contact between the pipe and corrosive substances in the environment. However, it should be noted that while ductile iron pipes are generally resistant to external corrosion, they may still be susceptible to localized corrosion in certain conditions. Factors such as soil composition, moisture content, and the presence of certain chemicals can potentially lead to the corrosion of ductile iron pipes in specific areas. Therefore, proper maintenance and regular inspections are necessary to identify and address any potential corrosion issues promptly. Overall, ductile iron pipes are considered to be highly resistant to external corrosion, but like any other material, they require proper care and maintenance to ensure their long-term durability and reliability.

Q: Can ductile iron pipe be used for horizontal directional drilling?: Yes, ductile iron pipe can be used for horizontal directional drilling (HDD). HDD is a trenchless method of installing underground utilities, such as pipelines, without the need for traditional open-cut trenching methods. Ductile iron pipe is often used in HDD projects due to its strength, durability, and ability to withstand the stresses and strains associated with directional drilling. It has excellent resistance to external loads and can withstand the bending and pulling forces involved in HDD installations. However, it is important to consider factors such as pipe diameter, wall thickness, and soil conditions to ensure proper pipe selection for HDD projects. Additionally, proper installation techniques and precautions should be followed to ensure the long-term performance and integrity of the ductile iron pipe in HDD applications.

Q: How are ductile iron pipes restrained against axial thrust forces?: Ductile iron pipes are typically restrained against axial thrust forces through the use of various mechanical joint systems. These joints, such as the push-on joint or the restrained joint, provide a secure connection between the pipes, preventing movement and ensuring structural integrity. Additionally, methods like concrete thrust blocks or anchor blocks are often used to further restrain the pipes and counteract any axial thrust forces that may be exerted on them.

Q: How do ductile iron pipes handle extreme temperatures?: Ductile iron pipes, also known as cast iron pipes, are known for their ability to handle extreme temperatures effectively. The material composition of ductile iron allows it to withstand both high and low temperatures without experiencing any significant damage or degradation. At high temperatures, ductile iron pipes exhibit excellent thermal resistance, making them suitable for applications where hot liquids or gases need to be transported. The high melting point of ductile iron, which ranges between 2060°C and 2200°C, ensures that the pipes can handle extreme heat without melting or deforming. This makes them ideal for use in industries such as oil and gas, steam distribution, and high-temperature water supply systems. Similarly, ductile iron pipes also perform well in low-temperature environments. They have a low coefficient of thermal expansion, meaning they can withstand the contraction and expansion that occurs during temperature fluctuations without cracking or fracturing. This makes them suitable for use in cold climates or applications that involve the transportation of chilled liquids or gases. Moreover, ductile iron pipes have excellent thermal conductivity, which allows them to quickly dissipate heat. This property is particularly important in high-temperature applications where efficient heat transfer is crucial to prevent damage to the pipes or the substances being transported. In summary, ductile iron pipes can handle extreme temperatures effectively due to their high melting point, low coefficient of thermal expansion, and excellent thermal conductivity. These properties make them a reliable choice for various applications that involve extreme temperature conditions.

Q: Are ductile iron pipes resistant to seismic events?: Generally, ductile iron pipes exhibit resistance to seismic events. Ductile iron, a form of cast iron known for its strength and durability, can withstand external forces, including those induced by seismic events like earthquakes. The design of ductile iron pipes allows for flexibility, enabling them to absorb and dissipate energy from seismic waves. This flexibility ensures the pipes remain intact despite ground movements and vibrations, preventing any breakage or cracking. Moreover, the joints of these pipes are designed to offer some level of flexibility, further enhancing their ability to withstand seismic events. Furthermore, the construction of ductile iron pipes involves thick walls, providing them with exceptional structural integrity. This strength reduces their susceptibility to damage during seismic events and ensures a consistent flow of fluids, such as water, even in extreme conditions. Nonetheless, it is crucial to recognize that the resistance of ductile iron pipes to seismic events can depend on various factors. These factors include the magnitude and proximity of the earthquake, the quality of installation and maintenance, and the specific design considerations for the pipeline system. Consequently, it is vital to adhere to proper engineering and construction practices to optimize the resilience of ductile iron pipes in areas prone to seismic activity.

Q: What is the typical cost of maintenance for ductile iron pipes?: The typical cost of maintenance for ductile iron pipes can vary depending on several factors. These factors include the age and condition of the pipes, the location and accessibility of the pipes, and the specific maintenance requirements. In general, regular maintenance activities for ductile iron pipes may include cleaning and flushing to remove sediment and debris, inspecting for leaks or cracks, repairing or replacing damaged sections, and applying protective coatings to prevent corrosion. These maintenance tasks are essential to ensure the longevity and performance of the pipes. The cost of maintenance for ductile iron pipes can range from a few hundred dollars to several thousand dollars per year, depending on the extent of maintenance required. Routine maintenance activities such as cleaning and inspection may have lower associated costs, while more significant repairs or replacements can be more expensive. Additionally, the cost of maintenance can be influenced by external factors such as labor costs, materials, and contractor fees. It is crucial to consider these factors and consult with professionals or utility companies for accurate cost estimates specific to your location and situation. Overall, while the cost of maintenance for ductile iron pipes can vary, investing in regular maintenance is essential to extend the lifespan and functionality of the pipes, minimize disruptions, and prevent costly repairs or replacements in the long run.

Q: Can ductile iron pipe be used for road and highway crossings?: Yes, ductile iron pipe can be used for road and highway crossings. Ductile iron is a strong and durable material that is well-suited for underground infrastructure projects, including road and highway crossings. It provides excellent resistance to heavy loads, corrosion, and external forces, making it suitable for withstanding the traffic and environmental conditions associated with road and highway crossings. Additionally, ductile iron pipe is available in various sizes and strengths, allowing for customization based on the specific requirements of the crossing. Proper installation techniques and adherence to relevant industry standards are essential to ensure the longevity and performance of ductile iron pipes in road and highway crossings.

Q: What is the expected joint deflection of ductile iron pipes?: The expected joint deflection of ductile iron pipes depends on various factors such as the diameter, wall thickness, and type of joint used. However, in general, ductile iron pipes are designed to have a joint deflection capability of up to 5 degrees for restrained joints and up to 10 degrees for flexible joints.

Q: Which is good for water polo cast iron pipe steel pipe?: Flexible seamless steel pipe is good toughness, good processing, better than ductile iron corrosion resistance, the price is slightly higher;

Q: Do ductile iron pipes have inner enamel?: For fire water and living water supply, low requirement is lined with cement mortar, some high can be lined with epoxy resin, epoxy ceramic lining, as well as cement mortar lining epoxy sealing layer (compromise is the price of blame).

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