ductile iron pipe of china 1800 System 1

ductile iron pipe of china 1800

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Quick Details

Place of Origin:China (Mainland)

Model Number:DN80-1600
Length:6M/5.7M/NEGOTIATED
Standard:ISO2531 / EN545
Application:Potable/Sewage Water
Diameter:DN80-1600
Shape:Round
Hardness:230
Pipe Wall Thickness:standerd
Pull Strength:420
Yield (≥ MPa):300
Material:Ductile Iron
water ductile iron pipe:SO2531 / EN545 DI pipe

Packaging & Delivery

Delivery Detail:	30-45 days

Specifications

ductile iron pipe:
1. DN80-DN1600mm (T-Type, Class K9)
2.effective length 6m/pc
3.comply with ISO2531/EN545/EN598

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 ductile iron 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 ISO2531and EN545 standards.

Specification& Payment terms

Internal lining: ductile iron pipes shall have an internal cement mortar lining in acc with ISO4179.

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

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

Packing: ductile iron pipes from DN100 to DN300 be bundled with steel belts, others are in bulk.

Payment term: L/C, T/T.
Packing: In bulk vessel or in container

ductile iron pipe of china 1800

Q:What is the expected thermal expansion coefficient of ductile iron pipes?: The expected thermal expansion coefficient of ductile iron pipes typically ranges from 10.8 to 12.2 x 10^-6 per degree Celsius.

Q:How does ductile iron pipe perform in areas with high soil erosion?: Ductile iron pipe performs well in areas with high soil erosion due to its inherent strength and durability. Its thick walls and strong composition make it resistant to external pressures, including the erosive forces of soil. The pipe's ability to withstand the effects of soil erosion helps ensure its long-term performance and reliability in such challenging 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 preventive measures and protective coatings. Stray current corrosion occurs when an electric current passes through the pipe, leading to accelerated corrosion and potential damage. To prevent this, the following measures are typically adopted: 1. Electrical isolation: Ductile iron pipes are electrically isolated from other metallic structures using insulating materials, such as rubber gaskets or non-conductive coatings. This isolation prevents the flow of stray current through the pipe, minimizing the risk of corrosion. 2. Cathodic protection: Cathodic protection is a widely used technique to protect ductile iron pipes from stray current corrosion. It involves the installation of sacrificial anodes or impressed current systems near the pipe. These anodes or systems release a controlled electric current, which counteracts the stray current and ensures that the iron pipe remains cathodically protected. 3. Coatings: Ductile iron pipes are typically coated with protective layers to enhance their resistance against corrosion. One common coating is a fusion-bonded epoxy (FBE) coating, which provides a high level of protection against stray current corrosion. FBE coatings act as a barrier, preventing the electrical contact between the pipe and the surrounding environment. 4. Monitoring and maintenance: Regular monitoring and maintenance are essential to ensure the ongoing protection of ductile iron pipes against stray current corrosion. This involves inspecting the protective coatings for any damage or degradation and promptly repairing or replacing them as needed. Additionally, monitoring systems can be installed to detect and measure stray currents, allowing for timely intervention if necessary. By implementing these protection measures, ductile iron pipes can effectively guard against stray current corrosion, prolonging their lifespan and ensuring the integrity of the pipeline infrastructure.

Q:How are ductile iron pipes protected against stray electrical currents?: To safeguard water and sewer systems, ductile iron pipes are shielded from stray electrical currents through a technique called cathodic protection. This process entails the application of a low-voltage direct current (DC) to the pipes, generating a defensive electrical field around them. To achieve cathodic protection, sacrificial anodes or impressed current systems are installed near the ductile iron pipes. Sacrificial anodes, composed of a more electrically active metal like zinc or magnesium, are connected to the pipes and act as the electrical current source. Over time, these anodes corrode, sacrificing themselves to shield the pipes from corrosion caused by stray electrical currents. However, impressed current systems utilize an external power source to supply the protective electrical current. Rectifiers are employed to convert alternating current (AC) to direct current (DC), which is then administered to the pipes through anodes. This approach provides greater control over the amount of current applied, ensuring optimal protection. In both scenarios, the electrical current flowing through the sacrificial anodes or impressed current systems establishes a protective barrier around the ductile iron pipes. This barrier impedes the flow of stray electrical currents through the pipes, thus diminishing the risk of corrosion and prolonging the infrastructure's lifespan. Regular monitoring and maintenance of the cathodic protection system are crucial to uphold its efficacy. This involves inspecting the anodes, assessing the levels of electrical current, and making any necessary adjustments or replacements to maintain the desired level of protection. To summarize, cathodic protection is a dependable and widely utilized method for safeguarding ductile iron pipes against stray electrical currents. By preserving the integrity and longevity of water and sewer systems, it plays a vital role in ensuring their functionality.

Q:Can ductile iron pipes be used in areas with high soil erosion?: Due to their inherent strength and durability, ductile iron pipes can be utilized in regions with substantial soil erosion. Ductile iron, a type of iron treated with graphite nodules, enhances its flexibility and tensile strength, rendering it highly resistant to cracking and breaking, even in extreme conditions. In areas with high soil erosion, the ground tends to shift and move, imposing significant stress on underground pipes. Nevertheless, ductile iron pipes exhibit high resistance to external loading and can endure the pressures exerted by the surrounding soil. Their reliability in such environments has been extensively tested and proven. Moreover, ductile iron pipes boast a lengthy lifespan, often exceeding 100 years, making them a cost-effective choice for areas with substantial soil erosion. Their corrosion resistance and structural integrity render them suitable for installation in diverse soil conditions, including those susceptible to erosion. It is crucial to note that proper installation techniques, like employing appropriate bedding and backfill materials, must be adhered to in order to ensure the optimal performance of ductile iron pipes in areas with high soil erosion. Additionally, regular inspection and maintenance should be carried out to promptly identify any potential issues and prevent damage resulting from soil erosion. All in all, ductile iron pipes serve as a dependable and durable option for regions with high soil erosion, providing enduring and efficient water distribution and wastewater management systems.

Q:What is the expected service life of ductile iron pipe?: The expected service life of ductile iron pipe can vary depending on various factors such as the environment, soil conditions, water quality, and the level of maintenance and corrosion protection measures implemented. However, on average, ductile iron pipe is designed to have a service life of 75 to 100 years. This is due to its superior strength, durability, and resistance to corrosion. Ductile iron pipe is known for its ability to withstand harsh conditions and has been used extensively in water and wastewater systems, industrial applications, and other infrastructure projects. Regular maintenance and proper corrosion protection can further extend the service life of ductile iron pipe, ensuring its continued reliability and performance over many decades.

Q:Can ductile iron pipes be used in coastal or marine environments?: Yes, ductile iron pipes can be used in coastal or marine environments. Ductile iron is a type of cast iron that has been treated with magnesium to give it enhanced strength, ductility, and resistance to corrosion. This makes it suitable for use in environments with high levels of moisture, such as coastal or marine areas. Coastal and marine environments are known for their high levels of saltwater, which can cause corrosion in metal pipes. However, ductile iron pipes have excellent corrosion resistance due to their protective coating. This coating acts as a barrier between the pipe and the corrosive elements present in saltwater, preventing the formation of rust and extending the lifespan of the pipes. Furthermore, ductile iron pipes can withstand the high pressures and stresses associated with coastal and marine applications. They have a high tensile strength, allowing them to handle the weight of soil, rocks, and other materials that may be present in these environments. Additionally, ductile iron pipes are resistant to damage from external forces, such as waves or debris, making them a reliable choice for coastal or marine projects. In summary, ductile iron pipes are a suitable choice for coastal or marine environments due to their corrosion resistance, high tensile strength, and durability. They can reliably transport water or other fluids in these challenging environments while maintaining their structural integrity over an extended period of time.

Q:Can ductile iron pipes be used in areas with high levels of heavy metal contamination?: Ductile iron pipes can indeed be used in areas with high levels of heavy metal contamination. Ductile iron is a strong and durable material that is resistant to corrosion, making it suitable for various environmental conditions, including areas with heavy metal contamination. The high levels of heavy metals in the surrounding soil or water do not affect the structural integrity or performance of ductile iron pipes. These pipes have a protective lining, usually made of cement mortar or polyethylene, which acts as a barrier between the pipe and the surrounding environment. This lining prevents the heavy metals from leaching into the water flowing through the pipes. Furthermore, ductile iron pipes have been proven to be highly resistant to chemical corrosion, including the corrosion caused by heavy metals. They have been extensively used in industrial applications where heavy metal contamination is common, such as wastewater treatment plants, industrial facilities, and mining sites. However, it is important to note that while ductile iron pipes can withstand high levels of heavy metal contamination, regular monitoring and maintenance are still necessary. This ensures that the protective lining remains intact and any potential issues are addressed promptly. In summary, ductile iron pipes are a suitable choice for areas with high levels of heavy metal contamination. Their strength, durability, and resistance to corrosion make them reliable for transporting water and other fluids, even in challenging environments.

Q:How do ductile iron pipes perform in extreme weather conditions?: Ductile iron pipes are renowned for their outstanding performance when faced with harsh weather conditions. Crafted from an iron alloy infused with small quantities of carbon and other elements, these pipes exhibit unparalleled strength and resilience, rendering them highly impervious to the effects of extreme weather. In soaring temperatures, ductile iron pipes maintain their structural integrity without succumbing to softening or deformation, unlike certain other materials. This ensures that the pipes continue to function optimally and reliably, even in scorching heat. Furthermore, these pipes boast a remarkable resistance to thermal expansion, thereby minimizing the risk of pipe distortion or joint failure during temperature fluctuations. When confronted with frigid conditions, ductile iron pipes also excel. They possess a low coefficient of thermal expansion, translating to a reduced likelihood of cracking or fracturing due to freezing temperatures. Moreover, their robustness and flexibility enable them to withstand the pressure exerted by freezing water inside the pipes without incurring significant damage. In addition, ductile iron pipes exhibit superb corrosion resistance, demonstrating their ability to withstand the detrimental effects of harsh chemicals, saltwater, and other corrosive substances that may be present in extreme weather conditions. This corrosion resistance ensures the longevity and dependability of the pipes, preventing leaks and preserving water quality. In terms of durability, ductile iron pipes are designed to endure heavy loads and external stresses. Boasting high tensile strength, they display resistance to bending and breakage. This characteristic proves crucial in extreme weather conditions where heavy rainfall, powerful winds, or even seismic activities may occur. All in all, ductile iron pipes have a well-established reputation for delivering exceptional performance in extreme weather conditions. Their strength, resilience, thermal stability, corrosion resistance, and durability render them a reliable choice for a multitude of applications, including water supply, sewage systems, and industrial pipelines, even in the most challenging weather environments.

Q:The difference between flexible joint cast iron pipe and flexible anti-seismic cast iron pipe: Tracking the world's advanced technology comprehensive introduction pipe, steel pipe, cast iron pipe and other pipe fittings, practical production process, technical performance and quality requirements. Data detailed, authoritative concrete. Instructive and practical.

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