DUCTILE IRON PIPES AND PIPE FITTINGS K9 CLASS DN1300

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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: Can ductile iron pipes be used in nuclear power plants?: Yes, ductile iron pipes can be used in nuclear power plants. Ductile iron is a type of cast iron that has improved flexibility and strength compared to traditional cast iron pipes. These pipes are known for their durability, corrosion resistance, and ability to withstand high pressure and temperature conditions. In nuclear power plants, where there is a need for a reliable and robust piping system to transport water, coolant, and other fluids, ductile iron pipes can be a suitable choice. However, it is important to note that the specific requirements and regulations of each nuclear power plant should be considered before selecting the pipe material. Proper testing, certification, and compliance with nuclear industry standards should be ensured to guarantee the safe and efficient operation of the power plant.

Q: Are ductile iron pipes resistant to alkali attacks?: Ductile cast iron, commonly used in ductile iron pipes, has demonstrated its remarkable resistance to alkali attacks. This is achieved through the inclusion of specific chemical compositions that provide exceptional corrosion resistance. Alkali attacks, which arise from the interaction between alkaline substances and metals or other materials, are effectively countered by the dense and protective oxide film present on both the inner and outer surfaces of ductile iron pipes. This oxide film forms naturally over time and possesses a composition and structure that offer excellent resistance to alkali attacks. Moreover, to further enhance their ability to withstand corrosion and chemical reactions, ductile iron pipes are frequently coated with various protective layers, such as epoxy or zinc. It should be emphasized that although ductile iron pipes exhibit a high resistance to alkali attacks, the severity and concentration of the alkali substances can still impact their overall performance. In extreme instances, where there are exceedingly high concentrations of alkali substances or prolonged exposure to aggressive alkaline environments, some damage may occur to the protective layers of the pipes. Nonetheless, within normal conditions and acceptable parameters, ductile iron pipes are widely regarded as possessing outstanding resistance to alkali attacks.

Q: How are ductile iron pipes protected against external corrosion?: Ductile iron pipes are protected against external corrosion through a combination of manufacturing processes and external coatings. The first line of defense is the inherent corrosion resistance of ductile iron itself. The iron is treated with a special alloying element, typically magnesium, which forms a protective layer on the surface of the pipe. This layer acts as a barrier against corrosion and helps to extend the lifespan of the pipe. In addition to the corrosion-resistant properties of the iron, ductile iron pipes are also externally coated with protective materials. One common method is to apply a layer of asphaltic or bituminous coating to the pipe's surface. This coating acts as a barrier against moisture and corrosive substances in the soil, preventing them from coming into contact with the iron. It also provides a layer of insulation, reducing the likelihood of galvanic corrosion. Another method of external corrosion protection is the use of fusion-bonded epoxy (FBE) coatings. FBE is a thermosetting resin that is applied to the surface of the pipe and then heat-cured to form a strong and durable coating. This coating provides excellent resistance against corrosion, abrasion, and impact, making it a popular choice for ductile iron pipes in harsh environments. In some cases, additional protective measures such as cathodic protection systems may be employed. These systems use electric currents to counteract the corrosion process by supplying electrons to the pipe's surface. This helps to prevent corrosion from occurring, especially in areas where the coating may have been damaged or compromised. Regular maintenance and inspection are also crucial in ensuring the long-term protection of ductile iron pipes against external corrosion. This includes periodic cleaning, repair of any coating damages, and monitoring the integrity of the protective layers. Overall, the combination of the inherent corrosion resistance of ductile iron, external coatings, and maintenance practices ensures that ductile iron pipes are well-protected against external corrosion, allowing them to have a longer lifespan and deliver reliable performance in various applications.

Q: Can ductile iron pipe be used for directional drilling?: Yes, ductile iron pipe can be used for directional drilling. It is a strong and durable material that can withstand the stresses and forces encountered during directional drilling operations. Its flexibility and resistance to damage make it a suitable choice for this application.

Q: What is the difference between ductile iron and cast iron pipes?: The main difference between ductile iron and cast iron pipes lies in their composition and properties. Ductile iron pipes are made from an alloy of iron, carbon, and silicon, which makes them more flexible and resistant to cracking. On the other hand, cast iron pipes are made from a mixture of iron, carbon, and other elements, which provides them with a higher resistance to corrosion and pressure. In summary, ductile iron pipes are more flexible and durable, while cast iron pipes are more resistant to corrosion and pressure.

Q: Are ductile iron pipes available in different wall thicknesses?: Yes, ductile iron pipes are available in different wall thicknesses. Ductile iron pipes are manufactured with various wall thicknesses to meet different requirements and applications. The wall thickness of a ductile iron pipe is determined based on factors such as the pipe's diameter, the internal pressure it needs to withstand, and the soil conditions it will be installed in. Pipes with thicker walls are typically used for higher pressure applications or in areas with more challenging soil conditions, while thinner-walled pipes may be suitable for lower pressure applications. The availability of different wall thicknesses allows for flexibility in selecting the appropriate ductile iron pipe for specific projects and ensures that the pipes can efficiently and safely transport fluids or gases.

Q: Can ductile iron pipes be used in areas with high soil acidity and alkalinity?: Yes, ductile iron pipes can be used in areas with high soil acidity and alkalinity. Ductile iron is highly resistant to corrosion and can withstand extreme pH levels, making it suitable for such environments.

Q: How many casting methods are there in ductile iron casting? A 60*6 discus can not have sand holes. Its surface is smooth. What process can be used to make it?: This is such a small piece, do not worry about shrinkage, mainly pay attention to sand hole and slag. With Disa wet molding line, a box of more pieces, suitable for mass production, defects will be relatively less. By using other methods (resin sand coated sand, etc.) can also be the main attention, don't type it, then the level of liquidity and relatively ductile iron, gray iron poor, sand and gas can not go up, sand holes or pores will spread in the discus plane.

Q: The plug connection DN800 ductile iron pipe has been installed. "Shall I think so?": Ductile iron pipes are defined as pipes made by casting more than 18 of casting molten iron by adding a spheroidal agent and then centrifugally centrifugally cast by a centrifugal nodular cast iron machineDuctile iron pipe ([span]Ductile Cast Iron Pipes), referred to as ball pipe, ductile iron pipe and ductile iron pipe etc..

Q: Can ductile iron pipe be used in corrosive environments?: Ductile iron pipe is capable of being utilized in environments that are corrosive. Ductile iron is renowned for its ability to withstand corrosion and has been extensively employed in diverse applications where resistance to corrosion is necessary. The resistance of ductile iron to corrosion is attributed to the formation of a natural protective oxide layer on its surface, which acts as a barrier against corrosive substances. Furthermore, ductile iron pipes can be coated with different protective coatings such as polyethylene or epoxy to augment their resistance to corrosion. These coatings furnish an additional layer of protection, rendering ductile iron pipes appropriate for deployment in highly corrosive settings like wastewater treatment plants, industrial plants, and marine applications. Nevertheless, it is crucial to take into account the specific corrosive substances present in the environment and seek guidance from experts or adhere to industry standards to guarantee the proper implementation of coating and maintenance practices for long-term performance and durability.

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