ductile iron pipe china Diameter:DN80-1600

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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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 are ductile iron pipes installed?: Ductile iron pipes are typically installed using a variety of methods, including trenching or open-cut excavation, horizontal directional drilling, and pipe bursting. In the traditional trenching method, a trench is dug to the required depth and slope, and the pipe is then lowered into place and joined using mechanical or push-on joints. Horizontal directional drilling involves drilling a pilot hole and then pulling the pipe through it, while pipe bursting involves breaking the existing pipe and replacing it with a new ductile iron pipe.

Q: Are ductile iron pipes suitable for bridge crossings or crossings under roadways?: Yes, ductile iron pipes are suitable for bridge crossings or crossings under roadways. Ductile iron pipes are known for their strength, durability, and resistance to external forces such as heavy traffic loads or bridge movements. They have a high tensile strength and can withstand the stress and strain caused by the weight of vehicles passing over them. Additionally, ductile iron pipes are highly corrosion resistant, making them suitable for underground installations where they may be exposed to water or other corrosive elements. Moreover, these pipes have a long lifespan and require minimal maintenance, making them a reliable choice for bridge crossings or crossings under roadways. Overall, ductile iron pipes provide a cost-effective and efficient solution for such infrastructure projects.

Q: How are ductile iron pipes manufactured?: Ductile iron pipes are produced using a technique called centrifugal casting, which employs a spinning mold. The process commences with the selection and preparation of top-notch ductile iron, a form of cast iron containing small quantities of magnesium to enhance its strength and ductility. Initially, the ductile iron is melted in a furnace at exceedingly high temperatures. Once the molten iron attains the desired temperature, it is poured into a rotating mold. Shaped like a pipe, the mold spins at a high speed, ensuring even distribution of the molten iron along its inner surface. While the mold spins, the molten iron cools and solidifies against the mold walls. This swift cooling leads to the formation of a fine-grained structure, thereby augmenting the mechanical properties of the pipe, including its strength and durability. The spinning mold continues to rotate until the pipe solidifies completely, typically within a few minutes. Upon solidification, the pipe is extracted from the mold and any excess material, referred to as the "skin," is eliminated. Typically, machining or grinding is employed to remove the skin, achieving the desired dimensions and surface finish. Subsequently, the pipe undergoes heat treatment to further enhance its mechanical properties and alleviate internal stresses. After the completion of heat treatment, the pipe undergoes a thorough inspection to identify any defects or imperfections. This inspection encompasses visual examinations, non-destructive testing methods, and pressure testing to ensure compliance with the required specifications and standards. If any defects are detected, the severity of the issue determines whether the pipe undergoes repair or is rejected. Lastly, the pipes are coated with a protective layer to prevent corrosion and extend their lifespan. This protective coating can be applied through various methods, such as cement mortar lining, epoxy coating, or zinc coating. In summary, the manufacturing process of ductile iron pipes encompasses iron melting, centrifugal casting, cooling, skin removal, heat treatment, inspection, and coating. This process guarantees the production of high-quality pipes characterized by exceptional strength, durability, and resistance to corrosion.

Q: What are the specifications for the installation of water ball iron pipes?: Ductile cast iron pipe is characterized by mild, high, thin wall, pressure resistance, impact resistance, corrosion resistance, seismic resistance and other properties. The flexible interface is used for the pipeline interface, and there is a certain elongation and deflection angle. The utility model has the advantages of the raw iron pipe and the steel pipe material, and avoids the defects of iron and steel.

Q: Nodular cast iron, heat treatment process and so on: The chill is estimated to be too low in carbon equivalent, poorly bred or cooled too quickly!

Q: Can ductile iron pipes be installed outdoors?: Ductile iron pipes can be installed outdoors.

Q: Are ductile iron pipes more expensive than other pipe materials?: The cost of ductile iron pipes may be higher than some other pipe materials, depending on various factors. Ductile iron pipes are renowned for their durability, strength, and resistance to corrosion, making them a wise long-term investment. However, compared to materials such as PVC or HDPE, the initial cost of ductile iron pipes can be higher. Furthermore, the installation process of ductile iron pipes may necessitate more labor and specialized equipment, thereby increasing the overall expense. Nevertheless, it is crucial to consider specific project requirements, including the environment, expected lifespan, and required pressure ratings, in order to accurately assess the cost-effectiveness of ductile iron pipes in relation to other pipe materials.

Q: How are ductile iron pipes tested for hydrostatic pressure?: For water and wastewater applications, ductile iron pipes are widely used because of their strength and durability. To guarantee their quality and dependability, these pipes undergo hydrostatic pressure testing. The process of hydrostatic pressure testing involves applying internal pressure on the ductile iron pipes at levels higher than their normal operating pressure. This is done to evaluate their ability to withstand the maximum pressure they may encounter during their service life. To begin the testing, a sample set of pipes is carefully selected from a production batch or shipment. These samples are meticulously prepared by removing any surface coatings or debris that could affect the accuracy of the test results. The prepared samples are then placed in a specially designed test rig or test line. The test rig is equipped with all the necessary connections, valves, and gauges to accurately control and monitor the test conditions. Once the samples are secured in the test rig, water or another suitable test fluid is slowly introduced into the pipes. The pressure is gradually increased to a preset level, typically surpassing the expected operating pressure by a certain factor. This elevated pressure is maintained for a specified duration, usually several hours, to evaluate the structural integrity and leak resistance of the pipes. Throughout the test, the pipes are closely monitored for any signs of leakage, deformation, or failure. Skilled technicians or engineers observe the pressure gauges and visually inspect the pipes for any visible defects or abnormalities. Additionally, automated systems may be used to continuously record and analyze the pressure readings, ensuring accurate data collection. After the specified test duration, the pressure is gradually released, and the pipes are meticulously inspected for any permanent deformation or residual stress. This inspection may involve visual examination, dimensional measurements, or non-destructive testing techniques like ultrasonic testing or magnetic particle inspection. The test results are then assessed against the relevant industry standards or specifications to determine if the pipes comply with safety and performance requirements. If the pipes pass the hydrostatic pressure test, they are considered suitable for their intended application. However, if any issues or failures are identified, further investigation, analysis, or corrective actions may be necessary before the pipes can be approved for use. In conclusion, hydrostatic pressure testing plays a vital role in ensuring the quality and reliability of ductile iron pipes. By subjecting these pipes to rigorous testing procedures, manufacturers can provide customers with pipes that meet the highest standards of safety and performance.

Q: What is the expected corrosion protection system for ductile iron pipes?: Typically, the expected corrosion protection system for ductile iron pipes involves a combination of external coatings, internal linings, and cathodic protection. To protect against corrosion, external coatings are applied to the pipe's exterior surface. These coatings, usually fusion-bonded epoxy, polyethylene, or polyurethane, act as a barrier against corrosion from soil, water, and chemicals. Furthermore, they play a crucial role in prolonging the pipe's lifespan. In order to safeguard against corrosion caused by the transported fluid, internal linings are applied to the pipe's interior surface. These linings, which can be made of cement mortar, epoxy, or polyurethane, provide a smooth and protective layer that prevents the formation of rust and scale. Cathodic protection is an electrochemical technique employed to shield ductile iron pipes from corrosion. It involves the utilization of sacrificial anodes or impressed current systems to generate a protective electrical current that counteracts the corrosion process. By employing this method, the formation of rust is prevented, thereby extending the pipe's longevity. It is important to acknowledge that the specific corrosion protection system for ductile iron pipes may differ depending on the application and environmental factors. To determine the appropriate corrosion protection system for a specific ductile iron pipe installation, consulting with corrosion experts and adhering to industry standards and guidelines is of utmost importance.

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.

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