DUCTILE IRON PIPE DN125 K7

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

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Supply Capability:: 30000Tons m/month

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CNBM ductile iron pipe ranges from DN80-DN1600mm (T-Type, Class K9), effective length 6m, comply with ISO2531 Standard

Company Profile

CNBM International Corporation is the leading production base and renowned supplier of Ductile Iron Water Pipe systems of both potable and waste water in China. We are constantly looking to develop high quality products to ensure the longest service life and wonderful performance.

CNBM Pipelines regard quality as the essential factor leading to successful business. Every pipe is tested in accordance with BS EN545 (water application) or BS EN598 (sewer application). CNBM Pipelines products comply with and are tested according to the relevant European and International Standards. Our pipes are manufactured under the quality management system BS EN ISO 9001. After years of efforts, CNBM Pipelines has built up great reputation in terms of quality and service among customers worldwide

Product Introduction

CNBM ductile iron pipe ranges from DN80-DN1600mm (Tyton, T-Type, Class K7/K8/K9), effective length: 6m, complying with BS EN545/EN598/ISO2531/BS4772.

Specification& Payment terms

Internal lining: Pipes shall have an internal cement mortar lining in acc with ISO4179.

External coating: Pipes shall be externally coated with metallic zinc spray plus a further layer of resin painting to ISO8179.

Gasket: 100% SBR/NBR/EPDM gasket in accordance with ISO4633.

Packing: Pipes from DN100 to DN300 be bundled with steel belts, the others are in bulk.

Payment term: By 30% T/T advance payment + 70% Irrevocable L/C at sight.
Packing: In bulk vessel or in container.

Q: How do ductile iron pipes perform in high-temperature water applications?: Ductile iron pipes possess remarkable strength, durability, and exceptional mechanical properties, rendering them suitable for diverse applications. However, certain factors must be taken into consideration when utilizing them in high-temperature water scenarios. Typically, ductile iron pipes exhibit satisfactory performance in high-temperature water settings up to a specific threshold. The exact temperature constraint hinges on the particular grade of ductile iron employed and the duration of exposure to elevated temperatures. Generally, ductile iron pipes can endure temperatures ranging from 350 to 400 degrees Fahrenheit for brief periods without suffering significant deterioration or loss of strength. Nevertheless, it is crucial to acknowledge that prolonged exposure to high temperatures can have adverse effects on ductile iron pipes. When subjected to elevated temperatures, these pipes may undergo thermal degradation, which can result in diminished mechanical properties, heightened brittleness, and even eventual cracking or failure. To mitigate the risks associated with high-temperature water applications, several precautionary measures can be implemented. Firstly, selecting a suitable grade of ductile iron with an elevated temperature tolerance can enhance the pipes' performance. Secondly, incorporating adequate insulation or heat shielding measures can minimize direct heat transfer to the pipes, thereby reducing the likelihood of thermal degradation. Furthermore, frequent monitoring and maintenance of ductile iron pipes utilized in high-temperature water settings are crucial to promptly identify any indications of degradation or damage and take appropriate remedial actions to prevent failure. In conclusion, although ductile iron pipes typically perform well in high-temperature water applications, it is imperative to thoroughly evaluate the specific conditions and requirements of the application to ensure their sustained performance and integrity.

Q: How do ductile iron pipes perform in acidic soil conditions?: Ductile iron pipes are known for their durability and resistance to various environmental conditions, including acidic soil conditions. When exposed to acidic soil, ductile iron pipes demonstrate excellent corrosion resistance due to their unique composition and protective coating. The high carbon content in ductile iron pipes provides them with inherent resistance to corrosion, even in acidic environments. Additionally, the pipes are typically lined with cement mortar or a suitable epoxy coating, which acts as an additional layer of protection against acid attack. The combination of the high carbon content and protective coating creates a barrier that prevents the acid from directly contacting the iron, thus minimizing the risk of corrosion. This ensures that the pipes remain structurally sound and maintain their integrity over an extended period of time. Furthermore, ductile iron pipes have a long service life and are designed to withstand a wide range of soil conditions. Their inherent strength and flexibility enable them to endure the stresses and strains caused by the surrounding soil, including acidic soil environments. This makes them an ideal choice for applications where the soil has a higher acidity level. It is important to note that while ductile iron pipes perform well in acidic soil conditions, the severity and concentration of the acid can impact their performance. In extremely aggressive or highly concentrated acidic environments, additional corrosion protection measures may be necessary, such as the use of sacrificial anodes or cathodic protection systems. In conclusion, ductile iron pipes are highly resilient and perform exceptionally well in acidic soil conditions. Their corrosion resistance, combined with their robust structure and protective coating, ensures their longevity and reliability, making them a preferred choice for various applications in such environments.

Q: How are ductile iron pipes protected against internal corrosion?: To safeguard ductile iron pipes from internal corrosion, a range of preventive measures are implemented. The foremost technique involves the application of a protective coating on the pipe's inner surface. This coating acts as a barrier that separates the pipe from the conveyed fluid, thereby minimizing the risk of direct contact and corrosion. Another commonly employed method is the usage of a cement mortar lining, which fortifies the protective barrier, thereby reducing the possibility of corrosion, even in aggressive environments. Moreover, this lining ensures a smoother surface, enhancing fluid flow by diminishing friction. Apart from coatings and linings, ductile iron pipes are often designed with corrosion-resistant alloys or additives. These alloys, such as zinc or epoxy, are incorporated during the manufacturing process, offering an additional layer of defense against internal corrosion. They function as sacrificial anodes, corroding over time to shield the underlying iron from degradation. Regular maintenance and inspection play a vital role in safeguarding ductile iron pipes against internal corrosion. Monitoring the condition of protective coatings, identifying any signs of degradation or damage, and promptly addressing such issues are imperative to ensure the long-term integrity of the pipes. In summary, a combination of protective coatings, cement mortar linings, corrosion-resistant alloys, and regular maintenance efforts collaboratively safeguard ductile iron pipes against internal corrosion. This approach prolongs their lifespan and guarantees the secure transportation of fluids.

Q: Do ductile iron pipes require additional protection against external factors?: Yes, ductile iron pipes do require additional protection against external factors. While ductile iron is known for its strength and durability, it is still susceptible to corrosion and other external threats that can lead to pipe failure. One of the main external factors that ductile iron pipes need protection from is corrosion. Corrosion can occur due to the presence of certain chemicals in soil or water, and it can weaken the pipe over time. To protect against corrosion, ductile iron pipes are often coated with an external protective layer such as polyethylene or zinc. This coating acts as a barrier between the pipe and the corrosive elements, extending the lifespan of the pipe. In addition to corrosion, ductile iron pipes may also require protection against physical damage. These pipes are typically buried underground, making them vulnerable to external forces such as heavy machinery, ground movement, or even vandalism. To safeguard against physical damage, ductile iron pipes can be encased in concrete or surrounded by a protective sleeve or casing. Furthermore, ductile iron pipes may need protection against soil conditions that could potentially cause pipe movement or shifting. In areas with unstable soil, additional measures such as proper bedding and backfilling techniques, as well as the use of anchoring devices, may be necessary to ensure the stability and integrity of the pipes. In summary, while ductile iron pipes are robust, they still require additional protection against external factors. This can include corrosion protection, physical damage prevention, and measures to address soil conditions. By implementing these protective measures, the lifespan and performance of ductile iron pipes can be significantly extended, ensuring the reliable conveyance of water and other fluids.

Q: Method for joining cast iron pipes: Cast iron pipe, cast cast pipe. Cast iron pipes are used for water supply, drainage and gas transmission lines. They include cast iron pipes and pipe fittings. Labor intensity is small. According to the casting method, it is divided into continuous cast iron pipe and centrifugal cast iron pipe, in which the centrifugal cast iron pipe is divided into sand mould and metal type two kinds. Divided into gray cast iron pipe and nodular cast iron pipe according to different material. According to the interface form, it is divided into flexible interface, flange interface, self anchored interface, rigid interface and so on. Among them, the flexible iron pipes rubber sealing ring; flange interface cast iron pipe flange fixed in the rubber pad, the flange gasket sealing; rigid interface cast iron pipe socket is large, straight pipe is inserted, sealed with cement, this technology has been basically eliminated

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 do ductile iron pipes handle ground settlement near construction foundations?: Ductile iron pipes are renowned for their effectiveness in handling ground settlement near construction foundations. Their flexible nature enables them to withstand ground movement without suffering severe damage or failure. When the ground settles near construction foundations, it exerts pressure on the surrounding infrastructure, potentially causing shifts in the soil. Ductile iron pipes have the advantage of absorbing and distributing this pressure, minimizing the risk of pipe breakage or deformation. A significant factor contributing to the resilience of ductile iron pipes is their high tensile strength. This strength enables the pipes to maintain their structural integrity even under substantial external forces. Consequently, they can endure ground settlement without experiencing fractures or cracks. Moreover, ductile iron pipes possess a high level of flexibility. This flexibility allows them to adapt to minor ground movements and accommodate shifts in the soil without compromising their functionality. The pipes can bend slightly without breaking or causing leaks, ensuring a continuous flow of fluids and preventing disruptions to the construction project. Additionally, ductile iron pipes are commonly installed with appropriate bedding and backfill materials. This ensures that the pipes have a stable and secure foundation, minimizing the risk of movement and settlement. The use of these materials also helps distribute the load exerted on the pipes more evenly, further enhancing their ability to handle ground settlement. All in all, ductile iron pipes are an excellent choice for construction projects that involve concerns about ground settlement. Their strength, flexibility, and proper installation techniques allow them to effectively handle ground movement near construction foundations, resulting in reliable and long-lasting infrastructure.

Q: Are there any alternatives to ductile iron pipe for water distribution?: Yes, there are several alternatives to ductile iron pipe for water distribution. Some common alternatives include PVC (Polyvinyl Chloride) pipes, HDPE (High-Density Polyethylene) pipes, and PEX (Cross-linked Polyethylene) pipes. Each of these alternatives has its own advantages and disadvantages in terms of cost, durability, ease of installation, and resistance to corrosion. The choice of alternative pipe material depends on factors such as the specific requirements of the water distribution system, budget constraints, and local regulations.

Q: How does ductile iron pipe compare to steel pipe in terms of durability?: Ductile iron pipe and steel pipe both have their own unique characteristics, but in terms of durability, ductile iron pipe has several advantages over steel pipe. Firstly, ductile iron pipe is highly resistant to corrosion. It has a protective layer of zinc or cement lining that prevents rust and corrosion, making it more durable and less prone to leaks or failures. On the other hand, steel pipe is susceptible to corrosion, especially when exposed to moisture or certain chemicals. This can lead to structural issues and decrease its overall durability. Secondly, ductile iron pipe has excellent impact resistance. It can withstand heavy loads and external pressures without cracking or breaking. This makes it suitable for applications in areas with high traffic or where the pipe may be subject to accidental impacts. Steel pipe, although strong, can be more brittle and prone to fractures under similar conditions. Additionally, ductile iron pipe has a longer service life compared to steel pipe. It has been known to last for over 100 years with proper maintenance, making it a reliable and durable choice for infrastructure projects. Steel pipe, while still durable, may require more frequent inspections and maintenance to ensure its longevity. Overall, ductile iron pipe surpasses steel pipe in terms of durability due to its corrosion resistance, impact resistance, and longer service life. However, the choice between the two ultimately depends on the specific application, budget, and other project requirements.

Q: What is the difference between a PE fire hose and a ductile iron pipe?: Seamless steel pipe: a pipe with a hollow cross section, used as a conduit for transporting fluids, such as pipelines for transporting petroleum, natural gas, gas, water, and certain solid materials. Compared withsteel and roundsteelinsolid, flexural torsional strength in the same time, the weight is light, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, the bicycle frame and steel construction with scaffold with steel pipe manufacturing ring parts can be improved the utilization rate of materials, simplify the manufacturing process, material saving and working hours, has been widely used to manufacture steel tube.

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