DUCTILE IRON PIPE DN150 k9

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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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 maximum allowable joint deflection for ductile iron pipes?: The maximum allowable joint deflection for ductile iron pipes varies based on the specific design and application requirements. However, it is generally recommended to limit joint deflection to a maximum of 5% of the pipe diameter to ensure the structural integrity and longevity of the pipeline.

Q: Will the cast iron pipes rust?: Qualified ductile iron pipe requires lining standard cement. The outer wall of pipe needs spraying zinc treatment and asphalt paint coating, and other epoxy resin paint can also be selected.

Q: Do ductile iron pipes require additional protection against external factors?: Yes, ductile iron pipes typically require additional protection against external factors such as corrosion and abrasion. This can be achieved through the application of protective coatings or linings, cathodic protection systems, and proper installation practices. These measures help extend the lifespan and ensure the durability of ductile iron pipes in various environments.

Q: Can ductile iron pipes be used for stormwater drainage?: Indeed, stormwater drainage systems can utilize ductile iron pipes. Renowned for their robustness and endurance, ductile iron pipes are apt for numerous purposes, including stormwater drainage. Notably, these pipes possess remarkable tensile strength, enabling them to endure substantial loads and pressure, rendering them optimal for transporting significant volumes of stormwater. Furthermore, the smooth interior surface of ductile iron pipes diminishes friction and encourages efficient water flow, reducing the likelihood of obstructions and congestion. Through meticulous installation and upkeep, ductile iron pipes can furnish a dependable and enduring resolution for stormwater drainage.

Q: Do ductile iron pipes require cathodic protection?: Yes, ductile iron pipes do require cathodic protection. Cathodic protection is necessary to prevent the corrosion of ductile iron pipes, which can extend their lifespan and maintain their structural integrity. The protection is typically achieved through the use of sacrificial anodes or impressed current systems to counteract the natural corrosion process.

Q: What are the different methods for cutting ductile iron pipe?: The cutting of ductile iron pipe can be done in various ways, depending on the project's specific needs and limitations. Some commonly used methods include: 1. Manual Cutting: To cut through the ductile iron pipe, one can employ a handheld saw or grinder equipped with an abrasive cutting wheel. While this method is simple and cost-effective, it can be laborious and time-consuming for larger pipe sizes. 2. Mechanical Cutting: Specialized machinery, such as bandsaws, pipe cutters, or hydraulic cutting machines, can be utilized to mechanically cut through the ductile iron pipe. These machines offer faster and more precise cuts, especially for larger pipe sizes. However, they tend to be more expensive and require skilled operators. 3. Torch Cutting: Also known as oxyfuel cutting, torch cutting involves heating the ductile iron pipe using a torch and then introducing a high-pressure oxygen stream to facilitate a chemical reaction that cuts through the metal. This method is effective for thick-walled ductile iron pipes but necessitates proper safety precautions due to the significant heat and sparks it generates. 4. Plasma Arc Cutting: The utilization of a high-velocity jet of ionized gas (plasma) to melt and cut through the ductile iron pipe characterizes plasma arc cutting. This method is ideal for precision and efficiency when cutting through thick-walled pipes. However, it can be more costly and may require specialized equipment and training. 5. Waterjet Cutting: Waterjet cutting involves using a high-pressure jet of water mixed with an abrasive material to cut through the ductile iron pipe. This method offers high precision and does not generate heat or sparks, making it suitable for sensitive environments. However, it tends to be slower and more expensive compared to other cutting methods. When selecting the appropriate method for cutting ductile iron pipe, factors such as pipe size, project requirements, budget, and safety must be taken into consideration. Consulting professionals or experts in the field can assist in determining the most suitable method for a specific project.

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: Can cast iron pipes not be used for domestic water supply and drainage?: Can be used for life drainage, I last year to do the public construction, 24 layers of life and drainage on the cast iron pipe.

Q: How are ductile iron pipes protected against stray electrical currents?: Ductile iron pipes are protected against stray electrical currents through the use of various measures such as applying coatings and linings on the pipes, utilizing cathodic protection systems, and implementing proper grounding techniques. These measures help to prevent corrosion and mitigate the impact of stray electrical currents on the ductile iron pipes, ensuring their long-term durability and functionality.

Q: Can ductile iron pipes be used for irrigation pivot systems?: Yes, ductile iron pipes can be used for irrigation pivot systems. Ductile iron pipes are known for their strength, durability, and resistance to corrosion, making them suitable for various applications including irrigation. These pipes can withstand high water pressure and provide a reliable and long-lasting solution for transporting water to irrigation pivot systems. Additionally, ductile iron pipes are also compatible with various fittings and connectors commonly used in irrigation systems, making them easy to install and maintain. Overall, using ductile iron pipes for irrigation pivot systems is a practical choice that ensures efficient water distribution and minimizes the risk of pipe failure.

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