DUCTILE IRON PIPES AND PIPE FITTINGS K8 CLASS DN200

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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: Are ductile iron pipes resistant to alkali attacks?: Ductile iron pipes have been proven to be highly resistant to alkali attacks. The material used in ductile iron pipes, known as ductile cast iron, is formulated with specific chemical compositions that provide exceptional corrosion resistance. This resistance extends to alkali attacks, which are chemical reactions that occur when alkaline substances come into contact with metals or other materials. Ductile iron pipes have a dense and protective oxide film on their inner and outer surfaces, which acts as a barrier against chemical attacks. This oxide film forms naturally over time, and its composition and structure provide excellent resistance to alkali attacks. Additionally, ductile iron pipes are often coated with various protective layers, such as epoxy or zinc, to further enhance their resistance to corrosion and chemical reactions. It is important to note that while ductile iron pipes are highly resistant to alkali attacks, the severity and concentration of the alkali substances can still impact their overall performance. In extreme cases, very high concentrations of alkali substances or prolonged exposure to aggressive alkaline environments may eventually cause some damage to the protective layers of the pipes. However, under normal conditions and within acceptable parameters, ductile iron pipes are considered to have excellent resistance to alkali attacks.

Q: Can ductile iron pipe be used for industrial wastewater applications?: Certainly, industrial wastewater applications can make use of ductile iron pipe. Renowned for its robustness, longevity, and corrosion resistance, ductile iron pipe proves itself suitable for a multitude of purposes, including wastewater systems. Its ability to withstand high pressure and endure demanding conditions renders it perfect for industrial wastewater applications that may involve abrasive or corrosive substances. Furthermore, the installation and maintenance of ductile iron pipe are effortless, resulting in reduced costs and guaranteed long-term dependability. Nevertheless, it remains crucial to carefully scrutinize the unique prerequisites of the wastewater application and seek guidance from professionals to ascertain the most fitting pipe material and design.

Q: What are the advantages of using ductile iron pipe over concrete pipe?: Using ductile iron pipe instead of concrete pipe offers several advantages. To begin with, ductile iron pipe has a higher strength-to-weight ratio, making it capable of withstanding higher pressure and loads while being lighter. This makes it easier to handle and install, ultimately reducing labor costs and saving time. Additionally, ductile iron pipe has superior corrosion resistance, making it less susceptible to rust or degradation over time. This extends its lifespan and reduces the need for frequent repairs or replacements, making it a more cost-effective option in the long run. Moreover, ductile iron pipe is more flexible and resilient compared to concrete pipe. It can withstand ground movement, settling, and other environmental factors without cracking or breaking. This reduces maintenance and repair costs, ensuring its durability. Furthermore, ductile iron pipe has a smoother interior surface, resulting in improved flow characteristics and reduced friction. This allows for more efficient transportation of fluids and minimizes the risk of clogs or blockages, guaranteeing uninterrupted flow. Lastly, ductile iron pipe is highly versatile and suitable for a wide range of applications. It can be used for both above-ground and underground installations, making it ideal for various infrastructure projects such as water supply systems, wastewater treatment plants, and industrial applications. In conclusion, the advantages of using ductile iron pipe over concrete pipe include its higher strength-to-weight ratio, superior corrosion resistance, better flexibility and resilience, smoother interior surface, and versatility. These benefits make it a reliable and cost-effective choice for various infrastructure projects.

Q: How do ductile iron pipes handle thermal expansion and contraction?: Ductile iron pipes are known for their excellent ability to handle thermal expansion and contraction. This is mainly due to their unique composition and design which allows them to withstand changes in temperature without experiencing significant damage or deformation. Thermal expansion occurs when a material expands due to an increase in temperature, while thermal contraction refers to the contraction that occurs when a material cools down. Ductile iron pipes can effectively accommodate these changes in temperature by utilizing their inherent flexibility and strength. One of the key factors that enable ductile iron pipes to handle thermal expansion and contraction is their high ductility, which refers to their ability to deform without breaking. This ductility allows the pipes to absorb the expansion and contraction forces without cracking or rupturing. Moreover, the composition of ductile iron pipes includes graphite nodules, which act as microcracks that can absorb stress and prevent the material from fracturing. This unique microstructure enhances the pipes' resistance to thermal expansion and contraction. In addition, ductile iron pipes are often designed with joints that allow for limited movement. These joints, such as mechanical joints or push-on joints, can accommodate the expansion and contraction of the pipes by providing a certain degree of flexibility. This helps to prevent the pipes from becoming overstressed or damaged. Overall, ductile iron pipes are specifically engineered to handle thermal expansion and contraction effectively. Their high ductility, unique microstructure, and joint design make them a durable and reliable choice for applications where temperature variations are expected.

Q: How does ductile iron pipe handle traffic loads and vibrations?: Ductile iron pipe is well-equipped to handle traffic loads and vibrations due to its inherent strength and durability. The material properties of ductile iron, such as its high tensile strength and impact resistance, make it a reliable choice for withstanding heavy loads and vibrations caused by traffic. When subjected to traffic loads, ductile iron pipe has the ability to distribute the weight effectively, minimizing stress concentrations and potential damage. This is due to its flexible nature, which allows it to absorb and dissipate the forces exerted by traffic, preventing cracks or fractures from forming. Moreover, ductile iron pipe's ability to dampen vibrations is another advantage. Its high density and stiffness help to absorb and dissipate the energy generated by vibrations, reducing their impact on the pipe and surrounding infrastructure. This is crucial in areas with heavy traffic or construction activities, where vibrations can be common. Furthermore, ductile iron pipes are often designed and manufactured to meet industry standards and specifications, ensuring they can withstand the anticipated traffic loads and vibrations. These pipes are commonly used in water distribution systems, sewers, and underground infrastructure, where they are subjected to various dynamic loads and vibrations. In summary, ductile iron pipe is an excellent choice for handling traffic loads and vibrations due to its strength, flexibility, and ability to dampen vibrations. Its reliable performance under these conditions makes it a preferred material for infrastructure projects, ensuring long-term durability and minimal impact on the pipe's structural integrity.

Q: The design uses water supply ductile iron pipe, PE corrosion protection pipe, HDPE pipe, please ask that good? What's the price of the two?: Now the mainstream is PE pipe, ductile iron pipe has been going out.

Q: How can the cast iron pipe be connected?: Cast iron pipes are flanged and socket connected

Q: Can ductile iron pipes be used for fire protection systems?: Fire protection systems can utilize ductile iron pipes. Ductile iron, a form of cast iron, possesses both strength and flexibility, making it suitable for various applications, including fire protection systems. It boasts excellent mechanical properties, such as high tensile strength and impact resistance, which are essential for withstanding the pressures and stresses that can arise during fire suppression efforts. Ductile iron pipes are renowned for their durability and long lifespan, which is crucial for reliable and functional fire protection systems. They have a longer lifespan compared to materials like PVC or galvanized steel and are less susceptible to corrosion. This is particularly important for fire protection systems, as they must remain operational even after extended periods of inactivity. Additionally, ductile iron pipes exhibit exceptional fire resistance. They can withstand high temperatures without compromising their structural integrity, ensuring the fire protection system remains intact and functional during fire emergencies. This is pivotal for ensuring the safety of occupants and minimizing property damage. Furthermore, ductile iron pipes are compatible with a wide range of fittings, valves, and accessories commonly used in fire protection systems. This facilitates easy installation and integration into existing fire suppression networks. In conclusion, ductile iron pipes are a reliable and suitable choice for fire protection systems due to their strength, durability, fire resistance, and compatibility with other system components.

Q: Can ductile iron pipes be used for pressure surge applications?: Ductile iron pipes are suitable for pressure surge applications. Their excellent strength and durability enable them to handle surge pressures caused by sudden flow rate changes or water hammer events. These pipes can withstand high internal pressures and are highly resistant to impact and fatigue. Moreover, their smooth interior surface facilitates efficient fluid flow, minimizing the risk of pressure surges. However, it is essential to consider factors such as pipe size, wall thickness, and proper installation techniques to ensure safe handling of specific pressure surge conditions. Consulting a professional engineer or pipe manufacturer is advised to assess the suitability of ductile iron pipes for pressure surge applications.

Q: How do ductile iron pipes compare to PVC pipes?: Ductile iron pipes and PVC pipes are two common materials used for plumbing and water distribution systems. While both have their advantages and disadvantages, there are several factors to consider when comparing the two. Strength and Durability: Ductile iron pipes are known for their exceptional strength and durability. They have a high resistance to pressure and can withstand heavy loads, making them suitable for underground applications and areas with high traffic. On the other hand, PVC pipes are less sturdy and can be more vulnerable to cracking or breaking under extreme conditions. However, PVC pipes are resistant to corrosion and do not rust, which can be a significant advantage in certain environments. Installation and Maintenance: Ductile iron pipes are heavier than PVC pipes, making them more challenging to handle and install. They require specialized equipment and skilled labor to be properly installed. In contrast, PVC pipes are lightweight and easy to handle, making them simpler and quicker to install. Additionally, PVC pipes require less maintenance as they do not corrode or develop mineral deposits over time, unlike ductile iron pipes which may require regular cleaning and maintenance to prevent rust and sediment buildup. Cost: PVC pipes are generally more affordable than ductile iron pipes. The lower material and installation costs associated with PVC pipes make them a popular choice for residential and commercial plumbing projects on a budget. Ductile iron pipes, while offering superior strength and durability, tend to be more expensive due to the higher cost of materials, specialized installation requirements, and additional maintenance expenses. Environmental Impact: PVC pipes are made from plastic materials, which are derived from non-renewable resources and can have a negative impact on the environment during production and disposal. Ductile iron pipes, on the other hand, are made from recycled iron and have a longer lifespan, reducing the need for replacement and minimizing waste. However, it is worth noting that PVC pipes can be recycled, and many manufacturers have implemented sustainable practices to minimize their environmental footprint. In summary, ductile iron pipes and PVC pipes have distinct characteristics that make them suitable for different applications. Ductile iron pipes excel in strength and durability, making them ideal for heavy-duty applications, while PVC pipes offer cost-effectiveness, easy installation, and resistance to corrosion. Ultimately, the choice between the two materials depends on the specific requirements, budget, and environmental considerations of the project.

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