DUCTILE IRON PIPES AND PIPE FITTINGS K8 CLASS DN550

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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: Can ductile iron pipe be repaired if it gets damaged?: If ductile iron pipe sustains damage, it can indeed be repaired. The process of repair entails the removal of the damaged section and the subsequent substitution with a fresh section. Typically, a pipe cutter, a specialized tool, is utilized to achieve a seamless cut on both ends of the affected area. Once the damaged portion is extracted, a new section of ductile iron pipe is affixed securely by employing mechanical couplings or welding. To safeguard the pipe's integrity and functionality, it is crucial to adhere to the manufacturer's guidelines and industry standards during the repair procedure.

Q: Ductile iron pipe joint damage, water leakage, want to see the connection with other pipe fittings, how to operate?!: The ink tube is really not good. Oh, have you tried blocking it with cement or plugging it with putty?Just pick up PE haha

Q: How are ductile iron pipes connected?: Ductile iron pipes are typically connected using several methods, including flanged joints, mechanical joints, and push-on joints. Flanged joints involve connecting two pipe sections with a flanged coupling. The pipe ends have flanges that are bolted together, creating a secure and leak-proof connection. This method is commonly used for larger diameter pipes or in applications that require a rigid joint. Mechanical joints utilize a mechanical joint gland and rubber gasket to create a watertight seal. The pipe ends are inserted into the gland, and the bolts are tightened to compress the gasket, ensuring a reliable connection. This method is often used in water distribution systems due to its flexibility and ease of installation. Push-on joints involve using a rubber gasket to create a tight seal between pipe sections. The gasket is placed in a groove on one pipe end, and the other pipe is pushed onto it, creating a compression seal. This method is quick and simple, making it suitable for various applications, including sewer systems and underground piping. Overall, the choice of connection method for ductile iron pipes depends on factors such as pipe diameter, application requirements, and installation conditions. It is crucial to follow the manufacturer's recommendations and industry standards to ensure proper installation and reliable performance.

Q: Will the cast iron pipes rust?: Ductile iron pipe corrosion process is good, decided whether it will rust. Whether it will rust or not, the key is whether the anti-corrosion process of the nodular cast iron pipe is in place.

Q: How are ductile iron pipes protected against internal corrosion caused by chemicals?: Ductile iron pipes are protected against internal corrosion caused by chemicals through a combination of several protective measures. Firstly, these pipes are usually lined with a cement mortar lining or an epoxy coating. This lining acts as a barrier between the chemical substances in the water or sewage and the iron material of the pipe, preventing direct contact and corrosion. In addition to the lining, a corrosion-resistant polymer or bituminous coating is often applied to the exterior of the ductile iron pipes. This coating serves as an extra layer of protection, safeguarding the pipe against any external chemical exposure that may occur. Furthermore, cathodic protection is commonly employed to prevent internal corrosion. This technique involves the use of sacrificial anodes, typically made of zinc or magnesium, which are attached to the pipe. The anodes corrode over time instead of the iron, effectively sacrificing themselves to protect the pipe from corrosion caused by chemicals. Regular maintenance and monitoring of the ductile iron pipes are also crucial in preventing and addressing any potential corrosion issues. This includes routine inspections, cleaning, and repairing any damaged or corroded areas promptly. Overall, the combination of lining, external coating, cathodic protection, and maintenance practices ensures that ductile iron pipes are well-protected against internal corrosion caused by chemicals, prolonging their lifespan and ensuring the integrity of the pipeline system.

Q: What are the different joint types available for ductile iron pipe?: The different joint types available for ductile iron pipe include push-on joints, mechanical joints, restrained joints, and flanged joints.

Q: Can ductile iron pipes be used for railway crossings?: Yes, ductile iron pipes can be used for railway crossings. Ductile iron is a strong and durable material that can withstand heavy loads and high traffic volumes, making it suitable for railway crossings. Additionally, it has excellent corrosion resistance properties, which is important for withstanding the harsh environmental conditions associated with railway crossings.

Q: How is ductile iron different from cast iron?: Ductile iron and cast iron are two iron alloys with varying compositions, properties, and uses. The primary distinction between the two lies in their microstructure and mechanical properties. Ductile iron, also known as spheroidal graphite iron or nodular cast iron, is a type of cast iron that undergoes an extra treatment process to enhance its strength and ductility. This is achieved by adding small amounts of magnesium to the molten iron during casting, resulting in the formation of graphite nodules throughout the material. These nodules act as stress raisers, preventing crack propagation and making ductile iron more resistant to fractures and more flexible compared to cast iron. In contrast, cast iron is an iron alloy with a higher carbon content than ductile iron. This higher carbon content leads to the formation of graphite flakes within the material, giving cast iron its characteristic brittleness. Due to its brittleness, cast iron is more prone to cracking and less flexible than ductile iron. However, cast iron exhibits excellent compressive strength and is highly resistant to wear and abrasion, making it suitable for applications where strength and durability are crucial, such as engine blocks, pipes, and manhole covers. Another difference between ductile iron and cast iron can be observed in their machinability. Ductile iron is generally easier to machine due to its lower carbon content and the presence of graphite nodules, which act as lubricants during the cutting process. On the other hand, the presence of graphite flakes in cast iron can cause tool wear and result in a poor surface finish during machining. In summary, ductile iron and cast iron differ in their microstructure, mechanical properties, and applications. Ductile iron offers improved ductility and fracture resistance, making it suitable for applications that require flexibility and impact resistance. Cast iron, with its higher carbon content and graphite flakes, provides excellent compressive strength and wear resistance, making it ideal for applications that demand strength and durability.

Q: How is ductile iron pipe protected against external corrosion?: Ductile iron pipe is protected against external corrosion through a variety of methods that ensure its durability and longevity. One common method is the application of protective coatings. The pipe is typically coated with a layer of zinc or asphaltic material, which acts as a barrier between the iron pipe and the surrounding environment. This coating helps to prevent direct contact between the pipe and corrosive elements such as soil, moisture, and chemicals, thereby reducing the risk of corrosion. Additionally, ductile iron pipes are often wrapped with a layer of polyethylene or polypropylene tape. This tape provides an extra layer of protection against external corrosion by serving as a physical barrier that shields the pipe from moisture and other potentially corrosive substances. The tape is applied with care to ensure complete coverage and adherence to the pipe's surface. Furthermore, cathodic protection is commonly employed to safeguard ductile iron pipes against external corrosion. This technique involves the installation of 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. Lastly, proper installation practices play a crucial role in preventing external corrosion. It is essential to ensure that the pipe is buried at an appropriate depth, allowing for adequate soil coverage. This helps to minimize exposure to corrosive elements and maintain the integrity of the protective coatings. Additionally, proper backfilling techniques and the use of corrosion-resistant bedding materials can further enhance the pipe's resistance to external corrosion. In conclusion, ductile iron pipe is protected against external corrosion through a combination of protective coatings, tape wrapping, cathodic protection systems, and proper installation practices. These measures work together to provide a robust defense against the corrosive forces that the pipe may encounter, ensuring its longevity and reliability in various applications.

Q: Why is the cast iron tube lined with cement? Under what circumstances are ductile iron pipes lined with cement, and under what circumstances do not have to be lined with cement?: Cement lining to protect water quality, reduce loss, improve the service life of the pipeline ductile, ductile iron pipes are generally lined, which the en545 standard specifies the quality of what kind of what kind of cement.

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