ductile iron pipe china Material:Ductile Iron

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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: What's the difference between cast iron pipe and steel pipe?: Steel pipe is not only used to transport fluid and powder solid, exchange heat energy, and manufacture mechanical parts and containers, but also is an economic steel. It can reduce weight and save 20 to 40% of metal by using steel pipe to make building structure, network frame, prop and mechanical support. Moreover, it can realize factory mechanization construction. Using steel pipe to manufacture road bridge can not only save steel, simplify construction, but also greatly reduce the area of coating protective layer, save investment and maintenance cost.

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. They possess high strength and durability, making them capable of withstanding heavy loads and traffic conditions. Additionally, their flexibility and resistance to external pressures make them an ideal choice for such applications, ensuring long-lasting and reliable performance.

Q: How do ductile iron pipes handle ground movement near rivers and lakes?: Due to their unique properties and construction, ductile iron pipes are an ideal choice for managing ground movement near rivers and lakes. These pipes, made from a type of cast iron known for its strength and flexibility, possess exceptional resistance to both ground movement and external forces. One notable characteristic of ductile iron pipes is their ability to endure bending and stretching without breaking. This remarkable flexibility enables the pipes to accommodate ground movements, whether caused by natural phenomena like soil settling, erosion, or even seismic activity. By absorbing and dispersing the stress induced by ground movement, these pipes minimize the risk of cracks or fractures. Moreover, ductile iron pipes exhibit high impact resistance, enabling them to withstand external forces such as pressure from shifting soil or heavy machinery. This quality makes them less susceptible to damage during ground movements in areas prone to erosion or flooding near rivers and lakes. Furthermore, ductile iron pipes feature smooth internal surfaces, reducing friction and resistance to the flow of water. This ensures efficient water transportation even in regions experiencing ground movement, preventing potential blockages or disruptions to the water supply system. To further enhance their ability to withstand ground movement, ductile iron pipes are commonly installed using flexible joints, such as restrained joints or push-on joints, depending on the specific project requirements. These joints allow the pipes to move slightly without causing harm to the overall system, providing additional protection against ground movement near rivers and lakes. In conclusion, ductile iron pipes possess the necessary strength, flexibility, impact resistance, and smooth internal surfaces to effectively manage ground movement near rivers and lakes. These qualities make them a reliable choice for water transportation systems in areas prone to ground movement, ensuring the creation of a durable and efficient infrastructure for the supply of water.

Q: How are ductile iron pipes transported and stored?: Ductile iron pipes are typically transported and stored in a systematic and careful manner to ensure their safety and integrity. Transportation of ductile iron pipes usually involves the use of specialized vehicles, such as flatbed trucks or trailers, that are capable of accommodating the size and weight of the pipes. These vehicles are equipped with appropriate securing mechanisms to prevent any movement or damage during transit. The pipes are loaded onto the vehicles using forklifts or cranes, ensuring that they are properly supported and balanced to avoid any bending or deformation. During transportation, it is crucial to protect the pipes from external factors that could potentially cause damage. This includes placing covers or wraps over the pipes to shield them from adverse weather conditions, such as rain, snow, or excessive sunlight. Additionally, securing the pipes with straps or chains can prevent any shifting or rolling during transit. When it comes to storage, ductile iron pipes are typically stacked on specially designed racks or supports in a horizontal position. This allows for even weight distribution and minimizes the risk of deformation or stress on the pipes. The storage area should be clean, dry, and well-ventilated to prevent corrosion or deterioration. It is important to handle ductile iron pipes with care to avoid any impact or rough handling that could result in cracks or fractures. Workers involved in the transportation and storage process should be adequately trained to ensure they follow proper protocols and use the necessary equipment, such as lifting machinery and protective gear. Regular inspection of transported and stored ductile iron pipes is essential to identify any signs of damage or corrosion. This allows for timely repairs or replacements, preventing any potential issues when the pipes are installed for their intended use. Overall, the transportation and storage of ductile iron pipes require careful planning, proper equipment, and adherence to safety protocols to ensure their condition and performance are maintained.

Q: Can ductile iron pipe be used for wastewater treatment plant applications?: Yes, ductile iron pipe can be used for wastewater treatment plant applications. Ductile iron pipes have several properties that make them suitable for such applications. Firstly, ductile iron is highly resistant to corrosion, which is crucial in wastewater treatment plants where the presence of chemicals and water can lead to rust and degradation of pipes. Additionally, ductile iron pipes have high tensile strength and durability, making them able to withstand the demands of wastewater treatment processes. Furthermore, ductile iron pipes are also known for their flexibility, which allows for easy installation and maintenance in complex wastewater treatment systems. Overall, ductile iron pipe is a reliable and cost-effective choice for wastewater treatment plant applications.

Q: How do ductile iron pipes handle internal scale buildup?: Ductile iron pipes possess exceptional resistance to the accumulation of internal scale, making them highly regarded. The material utilized in these pipes displays remarkable resistance to corrosion, effectively hindering the formation of scale deposits. Moreover, the pipes' sleek internal surface considerably reduces the likelihood of scale adherence. In the unlikely event that scale does commence its formation, ductile iron pipes handle it proficiently. The inherent robustness and durability of ductile iron enable it to withstand the pressure exerted by scale buildup. Consequently, the pipes can maintain efficient functionality, even in the presence of some internal scaling, thereby ensuring a dependable water flow. Nevertheless, it should be emphasized that regular maintenance and periodic cleaning remain imperative in order to prevent excessive accumulation of scale and ensure optimal pipe performance. This can be achieved through a variety of methods, including mechanical cleaning, chemical treatments, or high-pressure water jetting. By adhering to proper maintenance practices, the lifespan of ductile iron pipes can be prolonged, while minimizing any potential issues associated with internal scale buildup.

Q: How are ductile iron pipes made?: Ductile iron pipes are made using a specific manufacturing process known as centrifugal casting. This process involves pouring molten iron into a rotating mold, which is usually made of steel. The centrifugal force created by the rotation of the mold helps in distributing the molten iron evenly, ensuring the final product is of high quality. To begin the manufacturing process, a mixture of scrap iron, steel, and recycled material is melted in a furnace at extremely high temperatures. Once the molten iron reaches the desired temperature and consistency, it is ready to be cast into pipes. The rotating mold is first preheated to prevent the molten iron from cooling too quickly. The preheating process also helps in ensuring a smooth surface finish of the pipes. Next, the molten iron is poured into the rotating mold through a central sprue. As the mold spins, the molten iron is forced against the inner walls of the mold due to centrifugal force. This causes the iron to solidify rapidly, resulting in a dense, strong, and corrosion-resistant pipe. The centrifugal force also helps to remove any impurities or slag from the inner surface of the pipe, further enhancing its quality. Once the casting process is complete, the mold is allowed to cool, and the pipe is removed. The pipes are then subjected to various tests to ensure they meet the required quality standards. These tests may include checking the dimensions, mechanical properties, and surface finish of the pipes. After passing the quality tests, the ductile iron pipes are typically coated with a protective lining to prevent corrosion and extend their lifespan. This lining can be made of cement mortar, epoxy, or polyethylene, depending on the intended application of the pipes. In summary, ductile iron pipes are made through the centrifugal casting process, which involves pouring molten iron into a rotating mold. This process ensures the production of strong, corrosion-resistant pipes with a smooth surface finish.

Q: Can ductile iron pipes be used in areas with high soil acidity and alkalinity?: Ductile iron pipes can generally be used in areas with high soil acidity and alkalinity. However, it is important to consider the specific conditions and take appropriate measures to mitigate the potential effects of these soil characteristics on the pipes. In areas with high soil acidity, the acidic conditions can promote corrosion of metal pipes, including ductile iron. To prevent this, protective measures such as applying an external coating or using cathodic protection can be implemented. These measures help to create a barrier between the pipe and the corrosive environment, extending the longevity of the pipes. Similarly, in areas with high soil alkalinity, the alkaline conditions can also have an impact on the performance of ductile iron pipes. Alkaline soils can cause the formation of calcium carbonate deposits, commonly known as scale, which can reduce the flow capacity of the pipes over time. Regular maintenance and cleaning of the pipes can help mitigate the effects of scale buildup. It is worth noting that the suitability of ductile iron pipes in areas with high soil acidity and alkalinity may also depend on the specific grade and quality of the pipes. Manufacturers often provide guidelines and recommendations regarding the use of their products in various environmental conditions. It is advisable to consult with pipe manufacturers or industry experts to ensure proper selection and installation of ductile iron pipes in such areas.

Q: Do ductile iron pipes require pressure testing before installation?: Before installation, it is necessary to conduct pressure testing on ductile iron pipes. This step is critical in guaranteeing the pipes' integrity and safety. Its purpose is to detect any leaks, weaknesses, or defects before the pipes are put into service. Pressure testing involves subjecting the pipes to higher-than-normal operating pressures to determine if they can endure the expected pressure without any failures. By doing so, this process prevents potential issues such as leaks, bursts, or failures that could result in water loss, property damage, or accidents. Hence, pressure testing is an indispensable requirement for ductile iron pipes to ensure their reliability and long-term performance.

Q: What are the different types of linings available for ductile iron pipe?: There are several different types of linings available for ductile iron pipe, each with its own advantages and applications. 1. Cement mortar lining: This is one of the most common linings used for ductile iron pipes. It consists of a layer of cement mortar applied to the interior surface of the pipe. Cement mortar lining provides excellent resistance to corrosion and chemical attack, making it suitable for a wide range of applications, including potable water distribution, wastewater conveyance, and industrial pipelines. It also helps to reduce friction and turbulence within the pipe, improving flow efficiency. 2. Polyethylene lining: Polyethylene linings are often used in ductile iron pipes for applications where corrosion resistance is a primary concern. This lining consists of a layer of high-density polyethylene (HDPE) that is either extruded or sprayed onto the pipe's inner surface. Polyethylene lining provides superior resistance to corrosion, abrasion, and chemical attack, making it ideal for transporting aggressive fluids, such as saltwater, chemicals, or industrial waste. 3. Polyurethane lining: Polyurethane linings are commonly used in ductile iron pipes for applications where enhanced protection against abrasive wear is required. This lining is formed by spraying or pouring a layer of polyurethane onto the inner surface of the pipe. Polyurethane lining offers excellent resistance to abrasion, impact, and chemical attack, making it suitable for conveying abrasive slurries, mining applications, and other high-wear environments. 4. Epoxy lining: Epoxy linings are applied to ductile iron pipes to provide a protective barrier against corrosion and chemical attack. This lining is typically formed by applying a layer of epoxy resin to the pipe's inner surface through a process known as centrifugal casting or electrostatic spraying. Epoxy lining offers excellent adhesion and resistance to corrosion, making it suitable for various applications, including potable water distribution, wastewater treatment, and industrial pipelines. 5. Zinc lining: Zinc linings are used in ductile iron pipes to provide cathodic protection against corrosion. This lining involves applying a layer of zinc to the pipe's inner surface, either through hot-dip galvanizing or by electroplating. Zinc lining acts as a sacrificial anode, corroding preferentially to the iron pipe and protecting it from corrosion. It is commonly used in applications where the pipe is exposed to highly corrosive environments, such as seawater or acidic soils. Overall, the choice of lining for ductile iron pipes depends on the specific requirements of the application, including the type of fluid being transported, the level of corrosion resistance needed, and the potential for abrasive wear. Consulting with industry experts and considering factors such as cost, longevity, and maintenance requirements can help determine the most suitable lining option for a particular project.

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