DUCTILE IRON PIPE DN1200 K9

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Specification:

1) The standard of pipe: ISO2531:1998, K9

2) Effective length: 6m

3) Inner cement line: Portland cement line as per ISO4179

4) Zinc coating: at least 130g/m² as per ISO8179

5) Bitumen painting: at least 70um as per ISO8179

6) With 100% quantity of NBR ring, or SBR ring, or EPDM ring as per ISO4633

7) DN80mm-800mm

8) High strength, lighter than grey iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life tome about 100 yeas

9) Produced by Hangzhou chunfeng machine

10) Checked by automatic inspection equipment

11) Composition:

Chemical composition
Chemical composition	Ductile Cast Iron Pipe (%)	Grey iron pipe (%)	Steel pipe (%)
C	3.5-4.0	3.2-3.8	0.1-0.2
Si	1.9-2.6	1.4-2.2	0.15-0.4
Mn	0.15-0.45	0.4-0.6	0.3-0.6
P	≤0.06	≤0.3	0.02-0.03
S	≤0.02	≤0.1	0.02-0.03
Mg	0.03-0.06

12) Feature:

Mechanical properties
	Ductile Cast Iron Pipe	Grey Iron Pipe	Steel Pipe
Tensile Strength(Mpa)	≥420	150-260	≥400
Yield Strength(Mpa)	≥300	No Confirmation	No Confirmation
Bending Strength(Mpa)	≥590	200-360	≥400
Elongation (%)	≥10	Neglected	≥18
Brinell Hardness(HBS)	≤230	≤230	About 140

13) T type mechanical joint

14) Packing: in bulk or container

Q: What is the expected noise reduction of ductile iron pipes?: The expected noise reduction of ductile iron pipes can vary depending on several factors, including the specific characteristics of the pipe material and design, the installation method, and the surrounding environment. However, generally speaking, ductile iron pipes have been found to provide significant noise reduction compared to other pipe materials. Ductile iron pipes are known for their superior acoustic performance due to their dense and robust construction. The material's high density helps to absorb and dampen noise vibrations, reducing the transmission of sound waves through the pipe. Additionally, the smooth internal surface of ductile iron pipes minimizes turbulence and friction, further contributing to noise reduction. Various studies and field tests have shown that ductile iron pipes can achieve noise reductions ranging from 10 to 20 decibels (dB) or even higher, depending on specific conditions. These noise reductions can significantly improve the acoustic environment in areas where the pipes are used, such as residential areas, hospitals, or schools. It is important to note that while ductile iron pipes can provide substantial noise reduction, other factors such as pipe connections, fittings, and valves can affect the overall acoustic performance. Proper installation techniques, including the use of effective seals and dampers, can further enhance noise reduction. In conclusion, ductile iron pipes are expected to deliver notable noise reduction benefits due to their dense construction, smooth internal surface, and efficient installation methods. However, it is essential to consider the specific project requirements and consult with professionals to determine the expected noise reduction levels based on the particular circumstances.

Q: Can ductile iron pipes be used for water distribution networks?: Water distribution networks can utilize ductile iron pipes. Ductile iron, a type of cast iron known for its strength and flexibility, is well-suited for a variety of applications, including water distribution systems. Due to their durability, resistance to corrosion, and long lifespan, ductile iron pipes have been widely used in water supply networks. These pipes are capable of withstanding high pressure and are resistant to external loads and ground movement, making them an ideal choice for underground installations. Additionally, ductile iron pipes are commonly used for transporting safe drinking water as they are non-toxic and do not contaminate the water supply. Moreover, ductile iron pipes possess excellent hydraulic properties, ensuring efficient water flow and minimizing friction losses. Their smooth interior surface prevents the accumulation of deposits, reducing the risk of clogs and maintaining a consistent water flow. In summary, ductile iron pipes offer a reliable and effective solution for water distribution networks, guaranteeing the safe and efficient transportation of water to communities and industries.

Q: Can ductile iron pipes be used for underground oil and gas pipelines?: Underground oil and gas pipelines can utilize ductile iron pipes, which offer a robust and enduring material capable of withstanding the demanding characteristics of oil and gas transportation. With its exceptional tensile strength and impact resistance, ductile iron brings a high level of suitability for subterranean applications. Additionally, these pipes exhibit resistance against external loads, a crucial attribute for underground pipelines that might experience soil movements or heavy traffic. Moreover, the easy assembly of ductile iron pipes facilitates efficient installation and maintenance procedures. Nevertheless, it is crucial to carefully consider a range of factors, including soil conditions, environmental elements, and specific project prerequisites, prior to selecting ductile iron pipes for underground oil and gas pipelines.

Q: Can ductile iron pipe be used for water treatment plant sludge handling?: Yes, ductile iron pipe can be used for water treatment plant sludge handling. Ductile iron pipes are known for their durability, strength, and resistance to corrosion, making them suitable for handling various types of wastewater and sludge. They can efficiently transport sludge from different stages of the water treatment process within the plant without any adverse effects.

Q: Can ductile iron pipes be used for stormwater management systems?: Indeed, stormwater management systems can utilize ductile iron pipes. Renowned for their robustness and lastingness, ductile iron pipes prove fitting for diverse purposes, including stormwater management. These pipes exhibit resistance against corrosion and possess the ability to endure immense pressure, rendering them perfect for transporting stormwater runoff. Moreover, ductile iron pipes boast an extended lifespan, thereby minimizing the necessity for frequent replacements and upkeep. All in all, when it comes to stormwater management systems, ductile iron pipes serve as a dependable option.

Q: How can the ductile iron pipes be treated with corrosion protection?: Bituminous paint coatingBituminous paint coatings are pipes used to carry gas. Preheating the pipe before spraying can improve the adhesion of asphalt paint and accelerate drying

Q: What are the different joint types available for ductile iron pipes?: The different joint types available for ductile iron pipes include push-on joint, mechanical joint, flanged joint, restrained joint, and grooved joint.

Q: What are the typical joint sealing requirements for ductile iron pipes under pressure?: The typical joint sealing requirements for ductile iron pipes under pressure involve the use of gaskets and mechanical joints to ensure a leak-free connection. Gaskets are typically made of rubber or synthetic materials and are placed between the pipe ends to create a tight seal. These gaskets are designed to withstand the pressure of the flowing fluid and prevent any leakage. They also provide flexibility to accommodate for any slight misalignment or movement of the pipes. Mechanical joints, such as push-on joints or restrained joints, are another common method of sealing ductile iron pipes. These joints consist of a mechanical connection that securely holds the pipe ends together. They can provide a reliable seal without the need for additional gaskets. In addition to gaskets and mechanical joints, proper installation techniques are crucial for ensuring effective joint sealing. This includes proper alignment of the pipes, correct tightening of bolts or screws, and the use of appropriate lubricants or sealants. It is important to note that the specific joint sealing requirements for ductile iron pipes under pressure may vary depending on the application, the type of fluid being transported, and the applicable industry standards or regulations. Therefore, it is essential to consult the manufacturer's guidelines and relevant codes to determine the appropriate joint sealing requirements for a specific project.

Q: What is the expected joint performance of ductile iron pipes?: Ductile iron pipes are widely recognized for their outstanding joint performance. They possess exceptional durability and strength, making them suitable for a wide range of applications, including water distribution, sewer systems, and industrial pipelines. One crucial aspect of joint performance in ductile iron pipes is their ability to withstand external loads and pressure. To ensure minimal leakage and long-term structural integrity, the joints in these pipes are designed to create a tight and secure connection. This is accomplished through the utilization of various joint types, such as push-on joints, mechanical joints, and restrained joints. Push-on joints are commonly employed in ductile iron pipes due to their ease of installation. They do not require any specialized tools or equipment. These joints rely on a rubber gasket, which guarantees a watertight seal and prevents leakage. On the other hand, mechanical joints involve the use of mechanical devices, such as bolts and nuts, to establish a rigid connection between the pipes. This type of joint provides additional strength and resistance against external forces. Ductile iron pipes have undergone extensive testing to ensure their performance meets or exceeds industry standards for pressure and bending strength. They exhibit high resistance to corrosion, resulting in a longer service life. Additionally, they are less susceptible to damage caused by ground movements or vibrations. These properties contribute to the overall joint performance of ductile iron pipes, ensuring reliable and efficient operation in various infrastructure systems. When properly installed and maintained, ductile iron pipes display remarkable joint performance. They provide a reliable and durable solution for numerous applications within the water and wastewater industry.

Q: How do ductile iron pipes handle seismic movements?: Ductile iron pipes are renowned for their exceptional capacity to handle seismic movements, owing to their distinctive properties and construction. This renders them remarkably resistant to stress and deformation caused by ground vibrations during earthquakes. One of the primary merits of ductile iron pipes lies in their superior tensile strength, enabling them to endure substantial forces without succumbing to breakage or rupture. When seismic movements occur, these pipes exhibit flexibility and absorb the energy generated by the ground vibrations, thereby minimizing the risk of damage or failure. Moreover, ductile iron pipes possess exemplary resilience, allowing them to revert to their original shape after being subjected to external forces. This characteristic empowers the pipes to adapt to ground movements during earthquakes, effectively diminishing the likelihood of fractures or leaks. Furthermore, ductile iron pipes boast considerable ductility, enabling them to deform without fracturing. This attribute proves crucial during seismic events, as it enables the pipes to absorb the energy generated by ground vibrations by deforming and subsequently returning to their original shape once the seismic activity subsides. In order to further enhance their capacity to handle seismic movements, ductile iron pipes are frequently designed and installed with flexible joints. These joints grant the pipes the ability to move and adjust to ground movements, offering additional safeguards against damage or failure. In conclusion, ductile iron pipes have demonstrated their extraordinary reliability and resilience in withstanding seismic movements. Their combination of high tensile strength, resilience, and ductility make them an optimal choice for regions prone to earthquakes, ensuring the safety and durability of fluid transportation systems.

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