Ductile Iron Pipe of China DN200-DN800 EN598

Ductile Iron Pipe of China DN200-DN800 EN598

Ref Price:: $459.00 - 478.00 / m.t.

Loading Port:: China main port

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 300000 m.t./month

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1,Ductile Iron Pipe Description :

1) Pipes confirm to ISO2531,K9 class,T type joint,6m long,with inside cements lining conform to ISO4179, outside Zinc spraying(130g/m2) and bitumen coating(70μm) conform to ISO8179.

2) Pipe ends: Spigot and socket ends, with 100% SBR rubber gaskets accoding to ISO4633

3) we can do third party inspection according to customer's request.

2,Main Features of the Ductile Iron Pipe:

·High yield strength

·High tensile Strength

·High corrosion resistance

·Pressure Resistence

·Satisfy the highest hygienic standards

3,Ductile Iron Pipe Images:

Ductile Iron Pipe Cast Iron of China DN6200

4. Ductile Iron Pipe Specification

Standard: API SPEC 5L 44th eidtion,ASTM A252-98(2007)

Grade: A53 Grades A/B, ASTM A106 Grades B/C,ASTM A179

AWWA, C200, ASTM A139, ASTM A120, API 5L Grade B

Weld Alternatives: LSAW

OD size range: 6.4~44.5mm

Wall thickness: 406.4~1422mm

Length: 3 - 12 m according to requirment

5.FAQ:

We have organized several common questions for our clients，may help you sincerely：

1.Q: Why would you choose ductile iron pipe rather than other pipe materials?

A:The reasons are obvious for that not only ductile iron pipe possesses the inherent strength and flexibility of ductile iron, combined with proven corrosion protection systems, but also the cost savings can be achieved from design to installation and commissioning.

2.Q:Why can you guarantee the inner of pipes can’t be corroded?

A: High alumina cement mortar lining and sulphate-resistant cement mortar lining. These two special linings are applicable to inner anti-corrosion for sewage pipes, improving resistance to erosion of the sewage components.

Q: Are ductile iron pipes suitable for power plant applications?: Yes, ductile iron pipes are suitable for power plant applications. Ductile iron pipes are known for their high strength and durability, making them capable of withstanding the high-pressure and high-temperature conditions typically found in power plants. Additionally, ductile iron pipes have excellent corrosion resistance, which is crucial in power plant environments where water and chemicals are often present.

Q: What are the requirements for the hydrostatic test of ductile iron pipes?: The pipe work pressure P is less than 0.5MPa, the test pressure is 2P, the pipe work pressure is greater than 0.5MPa, the test pressure is P+0.5. After the water pressure rises to the test pressure, the pressure is fixed for 10 minutes, and the pipe joint and the pipe body are not damaged and leaked.

Q: The difference between cast iron pipe and ductile iron pipe: I don't understand your question! Both have spigot and socket connection type pipe material, also have flange,

Q: Can ductile iron pipes be used for irrigation of sports fields?: Indeed, ductile iron pipes are suitable for the irrigation of sports fields. Renowned for their robustness, longevity, and flexibility, these pipes are an excellent choice for a range of applications, including irrigation. With their ability to withstand external pressures and impacts, ductile iron pipes are particularly advantageous for sports fields that encounter heavy foot traffic and potential damage. Moreover, these pipes exhibit exceptional resistance to corrosion, guaranteeing enduring performance and minimal upkeep. The pipes' smooth interior surface also facilitates efficient water flow, preventing obstructions and ensuring adequate irrigation for the sports fields. All in all, ductile iron pipes represent a dependable and appropriate option for irrigation systems in sports fields.

Q: Nodular cast iron, heat treatment process and so on: White cast iron is one of the defects. Firstly, control of carbon equivalent, carbon equivalent is not too high. The second inoculation is reasonable, the step of determining whether carbon in cast iron with graphite precipitation. Ensure adding good inoculant humectant and sufficient time. Once again, the problem of cooling. The cooling can not be too fast, easy fast cooling to produce white tissue.

Q: What are the common methods for flow control in ductile iron pipes?: There are several common methods for flow control in ductile iron pipes. One of the most commonly used methods is the installation of valves. Valves can be used to regulate the flow of water or other fluids through the pipes. They can be manually operated or automated, depending on the specific needs of the system. Another method for flow control in ductile iron pipes is the use of flow restrictors or flow limiters. These devices are installed in the pipes to reduce the flow rate and ensure that the system operates within its designed parameters. Flow restrictors can be useful in situations where the flow needs to be controlled to prevent damage or to optimize the efficiency of the system. Flow control can also be achieved through the use of pressure regulators. These devices are installed in the pipes to maintain a specific pressure level within the system. Pressure regulators can help prevent excessive pressure, which can lead to pipe bursts or other damage. They can also help maintain a consistent pressure throughout the system, ensuring that the flow is controlled and predictable. Additionally, flow control can be achieved through the use of flow meters. These devices are installed in the pipes to measure the flow rate of the fluid passing through them. By monitoring the flow rate, operators can adjust valves or other flow control devices to ensure that the flow is within the desired range. Flow meters are particularly useful in applications where accurate flow measurement is crucial, such as in industrial processes or water distribution systems. Overall, the common methods for flow control in ductile iron pipes include the use of valves, flow restrictors, pressure regulators, and flow meters. These methods can be combined or used individually depending on the specific requirements of the system.

Q: How are ductile iron pipes tested for quality assurance?: To guarantee the quality and adherence to industry standards of ductile iron pipes, a variety of testing procedures are carried out. These tests evaluate both the raw materials and the finished products, aiming to ensure the pipes' durability, strength, and overall reliability. The first step involves analyzing the chemical composition of the raw materials used in the manufacturing process. This analysis verifies that the iron, carbon, and other elements fall within the specified range, as different compositions can impact the pipes' strength and resistance to corrosion. Next, mechanical tests assess the pipes' strength and ductility. Tensile tests determine properties like ultimate tensile strength, yield strength, and elongation, which help assess the pipes' ability to withstand external pressure and bending forces. Moreover, impact tests measure the pipe's ability to resist sudden loading or impact. By evaluating the energy absorbed by the pipes under high impact force, these tests ensure that the pipes can endure accidental impacts during installation or operation. Another pivotal test is the hydrostatic pressure test, which examines the pipes' capacity to withstand internal pressure. By subjecting the pipes to a specific pressure for a designated duration while filled with water, this test ensures their capability to handle expected operating pressures without any leakage or failure. Furthermore, dimensional and visual inspections are conducted to verify that the pipes meet the required specifications. These inspections involve checking the outer diameter, length, wall thickness, and overall appearance for any defects, such as cracks, voids, or irregularities. Lastly, corrosion resistance tests evaluate the pipes' ability to resist corrosion when exposed to different environments or fluids. These tests help determine the pipes' expected lifespan and their suitability for various applications. In conclusion, these quality assurance tests are vital in ensuring that ductile iron pipes adhere to the necessary standards and deliver dependable, long-lasting performance in diverse infrastructure projects.

Q: How does ductile iron pipe perform in areas with high seismic activity?: Ductile iron pipe is known for its exceptional strength and durability, which makes it well-suited for areas with high seismic activity. Seismic events, such as earthquakes, can subject pipelines to significant stress and strain, causing them to rupture or fail. However, ductile iron pipe has the ability to withstand these dynamic forces due to its unique material properties. One of the key advantages of ductile iron pipe in seismic areas is its superior flexibility. Unlike rigid materials such as cast iron or steel, ductile iron has a higher degree of elasticity, allowing it to deform and absorb energy during seismic events. This flexibility helps to dissipate the seismic forces, reducing the risk of pipe failure and minimizing damage to the overall pipeline system. Moreover, ductile iron pipe is manufactured with a high level of ductility, meaning it can undergo considerable deformation without fracturing. This property is crucial in seismic zones as it enables the pipe to withstand ground movements and seismic waves without compromising its structural integrity. The ability of ductile iron to absorb and redistribute stress also helps to prevent localized failures, ensuring the overall stability and reliability of the pipeline system. Additionally, ductile iron pipe is highly resistant to corrosion, which is especially important in high seismic areas where the integrity of the pipe may be compromised by ground movement and subsequent water leaks. The corrosion resistance of ductile iron ensures the longevity and reliability of the pipeline system, reducing the risk of leaks or failures during seismic events. In conclusion, ductile iron pipe performs exceptionally well in areas with high seismic activity due to its superior flexibility, high ductility, and corrosion resistance. These properties allow the pipe to withstand the dynamic forces generated during seismic events, providing a reliable and long-lasting solution for transporting fluids and ensuring the safety of communities in earthquake-prone regions.

Q: Can ductile iron pipes be used for underground chemical transport systems?: Due to their strength, durability, and resistance to corrosion, ductile iron pipes are commonly utilized in a variety of applications. However, when considering their use in underground chemical transport systems, it is crucial to take certain factors into account. Firstly, it is necessary to evaluate the type of chemicals being transported. Although ductile iron pipes are generally resistant to a wide range of chemicals, including acids, alkalis, and organic solvents, there are some chemicals that can cause corrosion or react with the iron content of the pipes, leading to degradation and potential leakage. Therefore, it is essential to assess chemical compatibility and seek advice from chemical engineers or experts to determine if ductile iron pipes are suitable for specific chemical transport applications. Secondly, the concentration and temperature of the chemicals must be considered. Elevated temperatures and high concentrations of certain chemicals can accelerate the corrosion process, potentially compromising the integrity of the pipes. Therefore, it is crucial to evaluate the operating conditions and ensure that the ductile iron pipes can withstand the chemical concentration and temperature levels. Furthermore, the potential presence of abrasive or erosive chemicals needs to be taken into consideration. If the transported chemicals contain abrasive particles or possess erosive properties, it may cause increased wear and tear on the inner surface of the pipes, reducing their lifespan and potentially leading to leaks. In such cases, it may be more appropriate to use alternative materials with higher resistance to abrasion or erosion. Lastly, it is important to adhere to relevant regulations and standards. Different countries or regions may have specific requirements for underground chemical transport systems, including the selection of materials. Therefore, it is crucial to ensure that ductile iron pipes meet the necessary standards and are approved for use in such applications. In conclusion, while ductile iron pipes have many desirable properties for various applications, including underground use, their suitability for chemical transport systems is dependent on several factors. Before deciding to use ductile iron pipes for underground chemical transport systems, it is essential to carefully evaluate chemical compatibility, concentration and temperature levels, the presence of abrasive or erosive chemicals, and compliance with regulations. Seeking guidance from experts in the field is highly recommended to ensure the safety and effectiveness of the chosen piping material.

Q: Can ductile iron pipes be used in tunneling or microtunneling projects?: Yes, ductile iron pipes can be used in tunneling or microtunneling projects. Ductile iron pipes are known for their strength, durability, and flexibility, making them suitable for underground applications. They can withstand the external pressure exerted by the surrounding soil or rock during tunneling, ensuring the integrity and safety of the project. Additionally, ductile iron pipes have excellent corrosion resistance properties, which is crucial in tunneling projects where the pipes are exposed to moisture and other corrosive elements. Their smooth internal surface also facilitates the flow of fluids or materials through the pipes, making them an ideal choice for tunneling or microtunneling projects.

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