ductile iron pipe china ISO2531

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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

Q: How to choose a ductile cast iron pipe with guaranteed quality: Cutting testing: iron filing resistance, filing issued a "Shua" sound, little sticky file, debris was gray with a small amount of white spot, look at the particles of different size, with small particles of fine powder, finger milling, it is easy to make fingers black. Ductile iron filing: when the resistance ratio of gray iron is slightly larger, there are obvious "Shua" sound ", little sticky file, debris was gray with fine bright particles ranging in size but with large particles, with finger milling chips, can be dyed black to gray fingers, but more black the degree of light

Q: How are ductile iron pipes protected against mechanical damage?: Ductile iron pipes are protected against mechanical damage through various measures that ensure their durability and longevity. One common method is the application of a protective coating on the exterior surface of the pipes. This coating acts as a barrier, shielding the ductile iron from physical abrasion, impact, and corrosion. The coating can be made of materials like epoxy, polyethylene, or zinc, depending on the specific requirements and environmental conditions. In addition to the protective coating, ductile iron pipes are also designed with a high level of structural strength. They are manufactured to withstand significant pressure and external forces, making them less susceptible to mechanical damage. The inherent strength of the material allows the pipes to resist deformation and cracking, even under heavy loads or ground movements. Furthermore, ductile iron pipes are often installed using proper bedding and backfilling techniques. This involves placing the pipes in a carefully prepared trench, ensuring a stable foundation and minimizing the risk of external forces causing damage. The correct backfill material is then used to provide support and prevent excessive pressure on the pipes. To enhance protection against mechanical damage, ductile iron pipes are often installed with additional measures such as concrete encasement or protective sleeves. Concrete encasement involves placing a layer of concrete around the pipe, providing an extra layer of protection against external forces. Protective sleeves can also be used in areas prone to impact or where additional protection is required. Regular inspections and maintenance are crucial in ensuring the continued protection of ductile iron pipes against mechanical damage. Periodic checks for any signs of wear, corrosion, or other forms of damage allow for timely repairs or replacement, preventing further deterioration. Overall, a combination of protective coatings, structural strength, proper installation techniques, and regular maintenance helps protect ductile iron pipes against mechanical damage, ensuring their reliable performance and longevity in various applications.

Q: Do ductile iron pipes require internal lining for potable water applications?: Yes, ductile iron pipes do require internal lining for potable water applications. This is because the iron used in these pipes can react with the water and potentially contaminate it. Internal lining acts as a barrier between the water and the iron, preventing any chemical reactions and ensuring the water remains safe for consumption.

Q: Can ductile iron pipe be used for pressure sewer systems?: Yes, ductile iron pipe can be used for pressure sewer systems.

Q: How are ductile iron pipes different from PVC pipes?: Ductile iron pipes and PVC pipes are utilized extensively in plumbing and water distribution systems, but they differ significantly in terms of their composition and properties. Ductile iron pipes are crafted from a particular form of cast iron that contains graphite nodules, which provide the material with ductility and flexibility. Consequently, these pipes can endure high pressures and heavy loads without succumbing to breakage or cracking. Ductile iron pipes are renowned for their robustness and longevity, making them particularly suitable for underground applications and areas with substantial traffic. Conversely, PVC pipes are constructed from a plastic known as polyvinyl chloride. These pipes possess rigidity and lack the same level of strength as ductile iron pipes. PVC pipes are commonly employed in low-pressure scenarios, such as residential plumbing systems, irrigation, and drainage systems. These pipes are lightweight, easy to install, and resistant to corrosion, rendering them a favored option for residential and non-industrial purposes. The cost disparity between ductile iron pipes and PVC pipes represents another distinction. Due to higher material and production expenses, ductile iron pipes tend to be pricier. Conversely, PVC pipes are relatively inexpensive to manufacture, making them a cost-effective choice for numerous plumbing projects. In summary, the primary disparities between ductile iron pipes and PVC pipes involve their composition, strength, flexibility, and cost. Ductile iron pipes, formed from cast iron, are celebrated for their strength and durability, while PVC pipes, formed from plastic, are lighter and more cost-effective. The selection between these two types of pipes depends on the specific demands of the plumbing project, including pressure, load-bearing capacity, and budgetary considerations.

Q: What is the expected roughness coefficient of ductile iron pipes?: The expected roughness coefficient of ductile iron pipes can vary depending on various factors such as pipe diameter, age, and condition. However, in general, the roughness coefficient for ductile iron pipes is typically around 0.01-0.015 mm. This value represents the average roughness of the internal surface of the pipe and is used in hydraulic calculations to determine the flow characteristics and pressure losses within the pipe network. It is important to note that these values are approximate and can vary based on specific pipe conditions and applications.

Q: What are the different methods for cutting ductile iron pipe?: There are several different methods for cutting ductile iron pipe, depending on the specific requirements and constraints of the project. Some common methods include: 1. Manual Cutting: This method involves using a handheld saw or grinder with an abrasive cutting wheel to cut through the ductile iron pipe. It is a simple and relatively inexpensive method, but it can be labor-intensive and time-consuming for larger pipe sizes. 2. Mechanical Cutting: Mechanical cutting methods involve using specialized machinery to cut through the ductile iron pipe. This can include bandsaws, pipe cutters, or hydraulic cutting machines. These machines can provide faster and more precise cuts, especially for larger pipe sizes. However, they can be more expensive and require skilled operators. 3. Torch Cutting: Torch cutting, also known as oxyfuel cutting, involves using a torch to heat the ductile iron pipe and then introducing a high-pressure oxygen stream to create a chemical reaction that cuts through the metal. This method is effective for cutting thick-walled ductile iron pipe, but it can generate a significant amount of heat and sparks, requiring proper safety precautions. 4. Plasma Arc Cutting: Plasma arc cutting utilizes a high-velocity jet of ionized gas (plasma) to melt and cut through the ductile iron pipe. This method is ideal for cutting through thick-walled pipes where precision and efficiency are required. However, it can be more expensive and may require specialized equipment and training. 5. Waterjet Cutting: Waterjet cutting uses a high-pressure jet of water mixed with an abrasive material to cut through the ductile iron pipe. This method is highly precise and does not generate heat or sparks, making it suitable for cutting in sensitive environments. However, it can be slower and more expensive compared to other cutting methods. It is important to consider factors such as pipe size, project requirements, budget, and safety when selecting the appropriate method for cutting ductile iron pipe. Consulting with professionals or experts in the field can help determine the most suitable method for a specific project.

Q: What are the common causes of failure in ductile iron pipes?: There are several common causes of failure in ductile iron pipes. One major cause is corrosion. Over time, the exposure to water, soil, and other environmental factors can lead to the formation of rust and corrosion on the pipe's surface. This can weaken the structural integrity of the pipe and eventually lead to failure. Another common cause is improper installation or handling. If the pipes are not installed correctly or if they are mishandled during transportation or installation, it can result in cracks, fractures, or other physical damage. These defects can compromise the functionality of the pipe and contribute to its failure. Inadequate design is another factor that can lead to failure. If the pipe is not designed to withstand the anticipated loads, pressures, or environmental conditions, it can become susceptible to premature failure. The pipe's material properties, wall thickness, and diameter must be carefully considered during the design process to ensure it can handle the expected demands. Poor maintenance and lack of timely repairs can also contribute to failure. Regular inspections, maintenance, and prompt repairs are necessary to identify and address any issues before they escalate. Failure to do so can result in the gradual deterioration of the pipe, making it more prone to failure. Lastly, external factors such as soil movement, seismic activity, or excessive traffic loads can also cause failure in ductile iron pipes. These external forces can exert stress on the pipe, leading to cracks, fractures, or even complete failure. To prevent failure in ductile iron pipes, it is essential to employ proper corrosion protection techniques, follow correct installation procedures, ensure adequate design considerations, implement regular maintenance and repair programs, and account for external factors during the planning and installation process.

Q: Can ductile iron pipes be made of flexible waterproof sleeves?: Flexible waterproof casing is suitable for pipeline through the wall in vibration or by strict waterproof requirements of the structures of hardware fittings, general production enterprises according to the Construction Science Research Institute developed S312, 02S404 standard atlas manufacturing. The wall of flexible waterproof casing wall, in case of non concrete should be replaced by concrete walls, and a casing must be solidified on the wall; flexible waterproof casing application widely used in construction, chemical industry, iron and steel, tap water, sewage treatment and other units.

Q: Can ductile iron pipes be used for marine applications?: Ductile iron pipes are indeed applicable for marine uses. Renowned for its robustness and durability, ductile iron proves itself suitable for diverse settings, even marine environments. Its remarkable resistance to corrosion empowers it to endure the severe challenges of saltwater exposure. Furthermore, ductile iron pipes have found utility in marine scenarios such as wastewater treatment facilities, desalination plants, and offshore platforms. Nevertheless, it remains crucial to meticulously contemplate appropriate coating and upkeep practices to optimize the lifespan of ductile iron pipes in marine applications.

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