ductile iron pipe china EN545 DI

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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 is ductile iron pipe different from other types of pipes?: Ductile iron pipe is different from other types of pipes in several ways. Firstly, ductile iron pipe is known for its exceptional strength and durability. It is made from a unique composition of iron, carbon, and other alloying elements, which gives it superior mechanical properties compared to other types of pipes. This makes ductile iron pipe highly resistant to external forces and pressure, making it ideal for underground installations, water mains, and sewer systems. Secondly, ductile iron pipe has excellent corrosion resistance. It is typically lined with a cement mortar or an internal coating, which provides a protective barrier against corrosion and extends the pipe's lifespan. This makes ductile iron pipe highly suitable for carrying water and other fluids, as it prevents contamination and maintains the quality of the transported material. Furthermore, ductile iron pipe offers a high degree of flexibility. Unlike more rigid pipe materials like cast iron, ductile iron pipe has the ability to withstand moderate deflection and ground movement without breaking or cracking. This flexibility makes it less prone to failure and reduces the need for costly repairs or replacements. Lastly, ductile iron pipe is relatively easy to install and maintain. It is typically available in long lengths, which minimizes the number of joints required. Additionally, the pipe's mechanical properties and corrosion resistance make it less susceptible to damage during installation or operation, resulting in lower maintenance costs over time. In conclusion, ductile iron pipe stands out from other types of pipes due to its exceptional strength, corrosion resistance, flexibility, and ease of installation. These qualities make it a reliable and cost-effective choice for various applications, especially in the water and wastewater industry.

Q:Can ductile iron be welded? Is weldability comparable to gray iron?: Suitable for the full range of cold welding welding, welding cast iron base material can almost all, and it is easy to achieve cast iron and carbon steel dissimilar metal welding, such as solving matrix fracture, crack, wear, hole filling defects after welding can be machined, many applications in the engine casing, cylinder head, casting machine, gear base the tooth of iron castings.

Q:What are the different sizes available for ductile iron pipe?: Ductile iron pipes are available in a wide range of sizes to cater to various applications in the water and wastewater industry. The sizes of ductile iron pipes typically range from 3 inches to 64 inches in diameter. The most commonly used sizes include 4 inches, 6 inches, 8 inches, 10 inches, 12 inches, 16 inches, 20 inches, 24 inches, 30 inches, and 36 inches. However, ductile iron pipes can also be manufactured in larger sizes depending on specific project requirements. These different sizes allow for flexibility in designing and constructing water distribution systems, sewage networks, and other infrastructure projects. The selection of the appropriate size depends on factors such as the volume of flow, pressure requirements, and the distance the pipe needs to cover. It is worth mentioning that the size of a ductile iron pipe refers to its internal diameter, also known as the nominal bore. The actual outside diameter of the pipe may vary slightly depending on the manufacturer and the specific dimensions provided. When choosing a size for ductile iron pipes, it is essential to consider factors such as hydraulic capacity, installation requirements, and the compatibility with other pipeline components. Consulting with engineers and industry experts is advisable to ensure the correct size selection for each specific application.

Q:Can ductile iron pipes be used for potable water systems?: Yes, ductile iron pipes can be used for potable water systems. Ductile iron is a strong and durable material that is resistant to corrosion and has been widely used in water distribution systems for many years. It meets the necessary standards and regulations for the transportation of potable water, making it a suitable choice for such applications.

Q:Can ductile iron pipes be repaired if damaged?: If there is any damage to ductile iron pipes, they can indeed be repaired. The process of repairing them involves several steps. Firstly, it is necessary to identify and isolate the damaged section of the pipe. Once this has been accomplished, the damaged portion of the pipe is typically cut out and removed. Subsequently, a new section of pipe is inserted and connected to the existing pipeline using appropriate methods such as welding or mechanical jointing. The repaired section is then tested to guarantee its integrity and functionality. It is important to note that the repair process may vary depending on the extent and nature of the damage. Therefore, it is always advisable to seek advice from professionals who specialize in ductile iron pipe repairs to ensure a proper and effective restoration is achieved.

Q:What are the different corrosion protection options for ductile iron pipe?: To ensure the longevity and durability of ductile iron pipes, there are several options available for corrosion protection. These options are as follows: 1. Cement Mortar Lining: A layer of cement mortar is applied to the inner surface of the pipe, creating a barrier against corrosive elements in water or soil. This lining offers excellent corrosion resistance and can endure for many decades. 2. Polyethylene Encasement: The ductile iron pipe is wrapped with a layer of polyethylene material, which acts as a physical shield against external corrosive elements. This method is commonly employed in aggressive soil conditions and provides long-lasting protection. 3. Internal and External Coatings: Different types of coatings, such as epoxy, polyurethane, or fusion-bonded epoxy (FBE) coatings, can be applied to the inner and outer surfaces of the pipe to resist corrosion. These coatings form a barrier that prevents the pipe from corroding in the surrounding environment. 4. Cathodic Protection: An electrical current is utilized to safeguard the pipe from corrosion. Cathodic protection systems can be either galvanic (sacrificial anode) or impressed current systems. These systems control the flow of electrons, preventing the oxidation of the ductile iron pipe. 5. Zinc Coating: Also known as galvanizing, this method involves applying a layer of zinc to the surface of the ductile iron pipe. Zinc acts as a sacrificial anode, corroding instead of the iron pipe. Zinc coating is particularly effective in soil conditions with low resistivity, offering reliable corrosion protection. It is crucial to consider various factors such as the environment, water chemistry, soil conditions, and expected service life when choosing a corrosion protection option for ductile iron pipes. Consulting with corrosion protection specialists and engineers can assist in selecting the most suitable option for specific applications.

Q:How does ductile iron pipe perform in sandy or unstable soils?: Ductile iron pipe performs exceptionally well in sandy or unstable soils due to its inherent strength and flexibility. The composition of ductile iron, which includes a combination of iron, carbon, and small amounts of other elements, gives it superior mechanical properties compared to other types of pipes. In sandy soils, where there is a risk of pipe movement and deformation due to shifting ground, ductile iron's high tensile strength and elongation characteristics allow it to withstand the pressure and stress without fracturing or breaking. Its flexibility enables it to accommodate the movement and settlement of the surrounding soil, reducing the risk of pipe failure. Moreover, ductile iron pipe's resistance to corrosion makes it highly suitable for installation in sandy soils. The protective lining and coatings applied to the interior and exterior of the pipe prevent the soil's corrosive elements from attacking the iron, ensuring long-term durability and reliability. In unstable soils with varying compaction levels or weak load-bearing capacity, ductile iron pipe's sturdy construction provides stability and support. Its robustness allows it to distribute the loads evenly, minimizing the risk of pipe deflection or collapse. Additionally, ductile iron pipe's joint design and sealing methods, such as push-on joints or mechanical joints with rubber gaskets, offer excellent leak resistance and prevent soil infiltration, further enhancing its performance in sandy or unstable soils. Overall, ductile iron pipe's combination of strength, flexibility, corrosion resistance, and reliable joint systems make it an ideal choice for applications in sandy or unstable soils, providing a long-lasting and efficient solution for water and wastewater transmission.

Q:What are the different coatings available for ductile iron pipe?: Ductile iron pipes offer a range of coating options, each with their own advantages and protective qualities for different uses. Some commonly utilized coatings are as follows: 1. Cement Mortar Lining: By applying a layer of cement mortar to the pipe's interior surface, this coating provides excellent resistance against corrosion and abrasion. It is ideal for transporting water and sewage. 2. Bituminous Coating: Consisting of asphalt or coal tar pitch applied to the pipe surface, bituminous coatings offer effective protection against corrosion. They are commonly used for underground pipes in water and wastewater systems. 3. Fusion-Bonded Epoxy (FBE) Coating: FBE coatings are created by electrostatically applying an epoxy powder layer to the pipe surface, which is then cured at high temperatures. This coating offers exceptional corrosion resistance and is suitable for harsh environments and corrosive substances. 4. Polyurethane Coating: Polyurethane coatings provide excellent resistance against abrasion, impact, and corrosion. They are often used for pipes exposed to abrasive materials or requiring additional protection against external damage. 5. Zinc Coating: Also known as galvanized coatings, zinc coatings involve applying a layer of zinc to the pipe's surface. This coating offers excellent corrosion protection, making it suitable for pipes exposed to moisture and aggressive environments. 6. Polyethylene Encasement: Polyethylene encasement involves wrapping the pipe with a layer of polyethylene film or tape. This coating acts as a physical barrier against corrosion and is commonly used in conjunction with other coatings for added protection. To determine the most appropriate coating for ductile iron pipes, it is crucial to consider the specific requirements of the application, such as the type of fluid being transported and the environmental conditions.

Q:How do ductile iron pipes handle ground movement in earthquake-prone areas?: Ductile iron pipes are known for their excellent resistance to ground movement, making them a reliable choice for earthquake-prone areas. These pipes are designed to withstand external forces, including the ground shifting and movement caused by seismic activities. The flexibility of ductile iron pipes allows them to absorb and distribute the energy generated during ground movement. This flexibility is achieved due to the unique composition of ductile iron, which includes nodular graphite in its microstructure. The nodular graphite provides ductility and resilience to the pipe, allowing it to deform under stress without fracturing. When an earthquake occurs and the ground starts to move, ductile iron pipes can adapt to the changing conditions. They have the ability to elongate, compress, and bend, thus reducing the risk of pipe failure. This characteristic is crucial in earthquake-prone areas, as it helps prevent catastrophic failures and water loss that can occur with more rigid pipe materials. Moreover, ductile iron pipes have a high level of joint integrity, which further enhances their ability to handle ground movement during seismic events. The joints of these pipes are designed to withstand lateral and angular movement, ensuring that they remain intact and leak-free. In addition to their inherent flexibility, ductile iron pipes are often installed using techniques that enhance their resistance to ground movement. Anchoring systems, such as thrust blocks and restraints, can be utilized to secure the pipes and prevent excessive movement. These systems help to stabilize the pipeline network and further minimize the potential for damage during earthquakes. Overall, the combination of ductility, joint integrity, and anchoring systems make ductile iron pipes a reliable choice for handling ground movement in earthquake-prone areas. They provide a durable and resilient solution that can withstand the challenges posed by seismic activities, ensuring the continuous supply of water and minimizing the risk of infrastructure damage.

Q:What are the typical bedding and backfill requirements for ductile iron pipes?: To ensure the correct installation and long-term effectiveness of ductile iron pipes, it is important to adhere to the typical requirements for bedding and backfill. The bedding material should be a granular substance that provides support and evenly distributes the load on the pipe. Suitable materials include sand, gravel, or crushed stone. The bedding material should be placed uniformly and continuously along the bottom of the trench, with a minimum thickness of 6 inches. The width of the bedding layer should be at least 1.5 times the outer diameter of the pipe, or as specified by the pipe manufacturer. Once the bedding is in place, the remaining space around the pipe should be filled with backfill material. This material should also be granular and free from large stones, debris, or organic matter. It should be compacted in 6-inch increments using appropriate compaction equipment. The backfill should be evenly distributed around the pipe, ensuring there are no gaps or voids. Excessive compaction should be avoided to prevent damage or deformation of the pipe. The backfill material should extend at least 12 inches above the top of the pipe. In addition to following the bedding and backfill requirements, it is crucial to adhere to any specific guidelines provided by the pipe manufacturer. These guidelines may include recommendations for specific materials, compaction methods, or additional protective measures. Overall, proper bedding and backfilling of ductile iron pipes are essential for maintaining the structural integrity and preventing damage or failure. By following industry standards and manufacturer specifications, the pipes will perform effectively and last for a long time in various applications.

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