DUCTILE IRON PIPES AND PIPE FITTINGS K8 CLASS DN350

DUCTILE IRON PIPES AND PIPE FITTINGS K8 CLASS DN350

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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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Ductile Iron Pipe On Sale Made In China DN100

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 do ductile iron pipes handle pipe deflection?: Ductile iron pipes have high flexibility and strength, allowing them to handle pipe deflection effectively. They can withstand moderate deflection without causing significant damage or compromising their structural integrity. This flexibility is due to the ductile nature of the iron used in their construction, which allows them to bend and adapt to changes in the ground or surrounding environment. Overall, ductile iron pipes are well-suited for handling pipe deflection situations.

Q:How do ductile iron pipes perform in seismic zones?: Ductile iron pipes perform well in seismic zones due to their inherent strength and flexibility. They are capable of withstanding ground movements and vibrations during seismic events without fracturing or breaking. The ductility of the material allows the pipes to absorb and distribute the seismic energy, reducing the risk of damage or failure. Additionally, their joint design and installation techniques ensure stability and integrity, further enhancing their performance in seismic zones.

Q:How can the three pipes of ductile iron leak?: The raw material used in RE can be installed in the thread, can also be used on the same thread AB, re install is also available, but it is hard to remove.

Q:What are the typical joint restraint requirements for ductile iron pipes under pressure?: In order to meet the joint restraint requirements for ductile iron pipes under pressure, there are two common options available: mechanical joint restraints and restrained joint systems. These restraints are essential to prevent separation or pulling apart of the pipes caused by internal pressure. A mechanical joint restraint, which is widely used, involves a series of bolts and clamps that securely hold the pipes together. These restraints are applied at each joint of the ductile iron pipes to ensure a tight and secure connection. By providing axial restraint, they prevent the pipes from separating along the pipe axis. Another option is the restrained joint system, which offers both axial and angular restraint. This system includes a specially designed joint that consists of a gasket, a restraining gland, and a series of bolts or wedges. The gasket ensures a watertight seal, while the restraining gland and bolts/wedges restrain the pipe joints, preventing separation under pressure. The specific requirements for joint restraints may vary depending on factors such as the pipe's diameter, wall thickness, and operating conditions. To determine the appropriate joint restraint system for a specific application, it is crucial to consult the manufacturer's guidelines and industry standards. Furthermore, proper installation and maintenance of the joint restraints are essential to ensure their effectiveness and longevity in restraining the pipes.

Q:How are ductile iron pipes protected against freeze-thaw cycles?: Several measures are taken to protect ductile iron pipes from freeze-thaw cycles. Firstly, the material used in these pipes is naturally resistant to low temperatures, allowing them to withstand freezing conditions without becoming brittle or prone to cracking. Furthermore, a protective layer such as cement mortar lining or polyethylene encasement is often applied to the pipes. This extra barrier helps insulate the pipe and prevents direct contact between the iron and the surrounding environment, reducing the risk of freeze-thaw damage. Moreover, ductile iron pipes are designed with joints that allow for movement and flexibility. This design feature helps accommodate any expansion or contraction that may occur during freeze-thaw cycles, minimizing the risk of pipe breakage or damage caused by freezing water pressure. Proper installation practices, including sufficient bedding and backfilling, are also crucial in protecting ductile iron pipes from freeze-thaw cycles. Adequate support and suitable materials surrounding the pipes help minimize the impact of freezing temperatures on the structural integrity of the pipes. Regular inspection and maintenance of ductile iron pipes are essential for identifying any potential issues resulting from freeze-thaw cycles. Periodic assessments can detect signs of damage or deterioration, allowing for timely repairs or replacement to prevent further damage. In conclusion, ductile iron pipes are safeguarded against freeze-thaw cycles through the material's inherent resistance, protective coatings, flexible joints, proper installation practices, and regular maintenance. These measures collectively ensure the durability and longevity of ductile iron pipes, even in cold weather conditions.

Q:How are ductile iron pipes transported and stored?: To ensure the safety and integrity of ductile iron pipes, a systematic and cautious approach is taken during their transportation and storage. Typically, specialized vehicles such as flatbed trucks or trailers are used to transport ductile iron pipes. These vehicles are specifically designed to accommodate the size and weight of the pipes. They are equipped with securing mechanisms that effectively prevent any movement or damage during transit. Forklifts or cranes are used to load the pipes onto the vehicles, ensuring proper support and balance to prevent bending or deformation. To protect the pipes from external factors that may cause damage, measures are taken during transportation. Covers or wraps are placed over the pipes to shield them from adverse weather conditions such as rain, snow, or excessive sunlight. Straps or chains are also used to secure the pipes, preventing any shifting or rolling during transit. During storage, ductile iron pipes are stacked horizontally on specially designed racks or supports. This ensures even weight distribution and minimizes the risk of deformation or stress on the pipes. The storage area must be clean, dry, and well-ventilated to prevent corrosion or deterioration. It is crucial to handle ductile iron pipes with care to avoid impact or rough handling that could result in cracks or fractures. Workers involved in the transportation and storage process must receive proper training to ensure they adhere to protocols and use the necessary equipment, including lifting machinery and protective gear. Regular inspections of transported and stored ductile iron pipes are necessary to identify any signs of damage or corrosion. This allows for timely repairs or replacements, preventing any issues when the pipes are installed for their intended use. In conclusion, the transportation and storage of ductile iron pipes necessitate meticulous planning, appropriate equipment, and adherence to safety protocols to maintain their condition and performance.

Q:Are ductile iron pipes resistant to chloride-induced corrosion?: Indeed, chloride-induced corrosion can be effectively resisted by ductile iron pipes. Ductile iron, a variant of cast iron fortified with magnesium for enhanced malleability and crack resistance, possesses a ferritic microstructure that grants exceptional resilience against chloride-induced corrosion. The interaction between chloride ions in water or soil and the metal surface can lead to the development of corrosion byproducts like rust. Nonetheless, the inclusion of magnesium in ductile iron forms a protective coating, preventing the infiltration of chloride ions and thus impeding corrosion. Consequently, ductile iron pipes are well-suited for a broad spectrum of applications, including water supply and sewerage systems, wherein exposure to chlorides is prevalent.

Q:What if the ductile iron pipe is broken?: Ductile iron pipes can be broken with a large piece of repair sectionIn the medium and low pressure pipe network, nodular cast iron pipe has the advantages of safe operation, low breakage rate, convenient construction and maintenance, excellent corrosion resistance, etc..

Q:What are the different types of joints used in ductile iron pipes?: Ductile iron pipes commonly utilize various types of joints to achieve secure and leak-proof connections between pipe sections. Here are some of the frequently employed joint types: 1. Push-on joint: This joint type offers easy installation without the need for specialized tools. It entails lubricating the gasket on one pipe end and inserting it into the socket of the adjacent pipe. The gasket ensures a tight seal to prevent any leakage. 2. Mechanical joint: Consisting of a gland and a follower gasket, this joint type involves placing the gland over the spigot end of one pipe and inserting the follower gasket into the bell end of the neighboring pipe. Bolts and nuts are then used to tighten the gland, compressing the gasket and creating a secure joint. 3. Restrained joint: In applications requiring restraint against axial movement or pressure thrust, this joint type is utilized. Typically, it involves a mechanical joint combined with additional components like tie rods, thrust blocks, or restrained couplings to provide the necessary restraint. 4. Flanged joint: Large diameter ductile iron pipes often employ flanged joints. They consist of a flange on one pipe end and a mating flange on the other pipe end. The two flanges are bolted together, establishing a robust and secure connection. Flanged joints enable easy disassembly and reassembly when necessary. 5. Welded joint: Welded joints are created by fusing the ends of two pipes together using heat and pressure. This type of joint ensures a permanent and strong connection. Welded joints are commonly employed in underground or buried applications where long-term durability is a crucial factor. It is essential to consider factors such as pipe diameter, application, and project requirements when selecting the appropriate joint type. Consulting with a professional engineer or referring to the manufacturer's guidelines is recommended to ensure the suitable joint type is chosen for ductile iron pipes.

Q:Can ductile iron pipe be recycled?: Indeed, the recycling of ductile iron pipe is possible. Ductile iron, a variant of iron often employed in pipe production owing to its remarkable robustness and endurance, can be melted down when it reaches the conclusion of its productive lifespan. By utilizing the resultant molten iron, fresh items can be fashioned. This method of recycling not only aids in the preservation of precious natural resources but also lessens the necessity for raw materials and energy-intensive procedures utilized in the fabrication of novel pipes. Furthermore, the recycling of ductile iron pipe serves to diminish waste and contributes to a more sustainable and ecologically conscious approach to the advancement of infrastructure.

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