DUCTILE IRON PIPES AND PIPE FITTINGS K9 CLASS DN100

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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 suitable for use in seismic areas?: Ductile iron pipes are indeed appropriate for usage in seismic regions. The strength and durability of ductile iron enable it to endure seismic forces and ground motions linked to earthquakes. Its exceptional flexibility and high tensile strength provide resistance against cracking or fracturing in highly challenging circumstances. Furthermore, ductile iron pipes have exhibited their trustworthiness and appropriateness in seismic zones over an extensive period. Nevertheless, to optimize their efficiency and mitigate any probable risks, it is crucial to adhere to appropriate installation methods and seismic design principles.

Q:Classification of cast iron pipes: Sand casting centrifugal cast iron pipe:The sand casting centrifugal cast iron pipe is made of gray cast iron. It is suitable for the transportation of pressure water such as water and gas.

Q:Do ductile iron pipes require special handling during transportation?: Transporting ductile iron pipes requires special handling. While these pipes are known for their strength and durability, improper handling can result in damage. Due to their weight and size, it is crucial to use appropriate lifting and handling equipment. Dropping or impacting the pipes must be avoided to prevent cracks or fractures. Moreover, pipes should be stored and transported securely to prevent rolling or shifting, which could harm the pipe coating and fittings. Additionally, it is advisable to shield the pipes from extreme temperatures or adverse weather conditions during transportation. Adhering to these guidelines and taking necessary precautions will minimize the risk of damage during transportation.

Q:How do ductile iron pipes compare to PVC pipes in terms of strength?: PVC pipes are generally considered to be less strong than ductile iron pipes. Ductile iron, a type of cast iron, is strengthened and made more flexible through the addition of small amounts of magnesium. This treatment enhances its resistance to cracking and breaking under pressure, making it suitable for various applications including water and wastewater transportation. In contrast, PVC pipes are made from a plastic known as polyvinyl chloride. While PVC pipes are relatively durable, they do not possess the same level of strength as ductile iron pipes. They are more susceptible to cracking and breaking when subjected to high pressure or extreme temperature changes. PVC pipes are commonly utilized in low-pressure systems such as irrigation and drainage. In terms of strength, ductile iron pipes exhibit greater tensile strength and can endure higher internal and external pressures compared to PVC pipes. Additionally, ductile iron pipes have a higher resistance to impacts, reducing the likelihood of damage from external forces like heavy machinery or accidental impacts. However, it is important to consider specific project requirements when choosing between ductile iron and PVC pipes. Factors such as cost, ease of installation, corrosion resistance, and the nature of the fluid being transported should all be taken into account.

Q:How is ductile iron pipe protected against external corrosion?: To ensure the durability and longevity of ductile iron pipe, various methods are employed to protect it from external corrosion. One commonly used method is the application of protective coatings. Typically, a layer of zinc or asphaltic material is applied to the pipe, creating a barrier between the iron and the surrounding environment. This coating prevents direct contact between the pipe and corrosive elements like soil, moisture, and chemicals, thereby reducing the risk of corrosion. Another layer of protection is provided by wrapping the ductile iron pipe with polyethylene or polypropylene tape. This tape acts as a physical barrier, shielding the pipe from moisture and other potentially corrosive substances. Great care is taken during the application process to ensure complete coverage and adherence to the pipe's surface. Cathodic protection is also commonly used to safeguard ductile iron pipes from external corrosion. This technique involves installing sacrificial anodes or impressed current systems near the pipe. These anodes generate a protective electrical current that counteracts the corrosion process, effectively inhibiting the deterioration of the pipe's surface. Proper installation practices also play a crucial role in preventing external corrosion. It is important to bury the pipe at an appropriate depth, ensuring adequate soil coverage. This minimizes exposure to corrosive elements and maintains the integrity of the protective coatings. Additionally, using corrosion-resistant bedding materials and employing proper backfilling techniques can further enhance the pipe's resistance to external corrosion. In conclusion, a combination of protective coatings, tape wrapping, cathodic protection systems, and proper installation practices ensures the protection of ductile iron pipe against external corrosion. These measures work together to provide a strong defense against corrosive forces, ensuring the pipe's reliability and longevity in various applications.

Q:How are ductile iron pipes transported and stored?: Ductile iron pipes are typically transported and stored in a careful manner to ensure their integrity. They are commonly transported by trucks, rail, or waterways, using appropriate handling equipment such as cranes or forklifts. During transportation, they are secured to prevent any damage or movement that could affect their structural integrity. When it comes to storage, ductile iron pipes are usually stacked horizontally on stable surfaces, such as concrete or pallets, to prevent any deformation or bending. They are often stored in covered areas to protect them from weather elements that could cause corrosion or other damages. Additionally, pipes should be stored in a well-ventilated space to prevent moisture accumulation and potential rusting. Regular inspections are also conducted during storage to identify any signs of damage or deterioration. Overall, proper transportation and storage practices are crucial to maintain the quality and longevity of ductile iron pipes.

Q:What kind of valves are commonly used in ductile iron pipes?: You ask the ductile cast iron valves used on no special, because this interface in connection with the valve on the pipe flange is basically, as long as the flange of the valve should be can be used in milling pipe.

Q:Are ductile iron pipes suitable for acidic or alkaline environments?: Ductile iron pipes can be used in both acidic and alkaline environments, but their performance may vary depending on the conditions. Ductile iron is a type of cast iron that has been strengthened and made more flexible by adding a small amount of magnesium. This treatment allows the pipes to withstand various conditions, including those found in acidic or alkaline environments. In acidic environments, ductile iron pipes resist corrosion well. The iron in the pipes reacts with the acid to create a protective layer of iron oxide, which prevents further corrosion. However, it is important to consider factors like acid concentration and temperature, as they can affect the performance of ductile iron pipes in acidic environments. In highly concentrated or extremely acidic conditions, materials like stainless steel or corrosion-resistant alloys may be more suitable. Similarly, ductile iron pipes also resist corrosion in alkaline environments. The alkaline conditions help to passivate the iron surface, forming a protective layer that prevents further corrosion. However, the specific conditions and alkali concentrations may influence the performance of ductile iron pipes in alkaline environments. In cases of very high alkalinity or extreme temperatures, materials like plastic or concrete pipes may be more appropriate. It is important to note that regular maintenance and monitoring are necessary to ensure the long-term performance of ductile iron pipes in both acidic and alkaline environments. Monitoring the pH levels and other chemical characteristics of the environment is crucial to identify any potential issues or required maintenance. Consulting experts or engineers in the field can provide valuable insights and guidance in selecting the most suitable materials for specific acidic or alkaline environments.

Q:How are ductile iron pipes protected against stray current corrosion?: Ductile iron pipes are protected against stray current corrosion through the implementation of various measures. One common method is the installation of a protective coating, such as an epoxy or zinc coating, on the external surface of the pipes. This coating acts as a barrier, preventing direct contact between the pipe and the surrounding soil or water. Additionally, cathodic protection systems, such as impressed current or sacrificial anode systems, can be employed to further protect the pipes. These systems help to control and redirect stray currents, minimizing their impact on the ductile iron pipes and preventing corrosion.

Q:Can ductile iron pipes be used for underground fire protection systems?: Yes, ductile iron pipes can be used for underground fire protection systems. Ductile iron has excellent strength and durability, making it suitable for handling the high pressures and extreme conditions associated with fire protection systems. Additionally, it has good corrosion resistance, allowing the pipes to withstand exposure to moisture and other underground elements.

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