DUCTILE IRON PIPE DN1000

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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 average cost of ductile iron pipe?: The average cost of ductile iron pipe can vary depending on factors such as the size, length, and location. However, as of 2021, the average cost for ductile iron pipe ranges from $10 to $20 per linear foot.

Q:What is the expected deflection range for ductile iron pipes?: The expected deflection range for ductile iron pipes can vary depending on several factors such as pipe diameter, wall thickness, soil conditions, and installation methods. Generally, ductile iron pipes have a higher deflection capacity compared to other materials like PVC or concrete pipes. For smaller diameter ductile iron pipes (up to 12 inches), the expected deflection range is typically around 2-3% of the pipe diameter. This means that a 12-inch ductile iron pipe could deflect up to approximately 0.24-0.36 inches. For larger diameter ductile iron pipes (greater than 12 inches), the expected deflection range can be slightly higher, ranging from 2-5% of the pipe diameter. This means that a 24-inch ductile iron pipe could deflect up to approximately 0.48-1.2 inches. It is important to note that these values are general estimates and should be verified with the manufacturer's specifications or engineering design guidelines for a specific project. Additionally, proper installation techniques and backfilling practices should be followed to ensure the pipe's structural integrity and prevent excessive deflection.

Q:Do ductile iron pipes require pressure testing before installation?: Yes, ductile iron pipes do require pressure testing before installation. Pressure testing is a crucial step in ensuring the integrity and safety of the pipes. It helps to identify any leaks, weak spots, or defects in the pipes before they are put into service. Pressure testing involves subjecting the pipes to higher than normal operating pressures to check if they can withstand the expected pressure without any failure. This process helps to prevent potential issues such as leaks, bursts, or failures that could lead to water loss, property damage, or even accidents. Therefore, pressure testing is an essential requirement for ductile iron pipes to ensure their reliability and long-term performance.

Q:Are ductile iron pipes suitable for pressure sewer systems?: Yes, ductile iron pipes are suitable for pressure sewer systems. Ductile iron pipes have been widely used in various applications, including pressure sewer systems, due to their high strength and durability. These pipes are able to withstand high pressure and provide a reliable and long-lasting solution for transporting sewage under pressure. Ductile iron pipes also have excellent corrosion resistance, which is crucial in sewer systems where they are exposed to various chemicals and contaminants. They are resistant to both internal and external corrosion, ensuring that the pipes remain intact and functional over time. Furthermore, ductile iron pipes have a smooth internal surface, which helps to minimize friction and improve the flow capacity of the sewer system. This ensures that the pipes can handle the required flow rates and prevent any blockages or backups. In addition to their strength and corrosion resistance, ductile iron pipes are also known for their ease of installation. They can be easily cut and joined using a variety of methods, making them a convenient choice for pressure sewer systems. Overall, ductile iron pipes are a suitable and reliable choice for pressure sewer systems due to their high strength, corrosion resistance, smooth internal surface, and ease of installation.

Q:Are ductile iron pipes resistant to freeze-thaw cycles?: Ductile iron pipes exhibit resistance against freeze-thaw cycles. Ductile iron, a variant of cast iron, is fortified with magnesium, which enhances its strength, durability, and ability to resist cracking. These improved material properties enable ductile iron pipes to withstand the expansion and contraction that occur during freeze-thaw cycles. Unlike PVC or concrete, which may fracture or shatter due to the pressure exerted by freezing water, ductile iron pipes remain intact without suffering substantial damage. Moreover, the smooth interior surface of ductile iron pipes prevents the accumulation of ice or frost, thereby augmenting their resistance to freeze-thaw cycles. In conclusion, ductile iron pipes are an optimal choice for water distribution systems in cold climates, as they provide exceptional resistance against the adverse effects of freezing and thawing.

Q:How do ductile iron pipes handle water hammer in high-rise buildings?: Known for their durability and strength, ductile iron pipes are an excellent option for managing water hammer in high-rise structures. Water hammer, a common occurrence when water flow abruptly halts or changes direction in pipes, causes pressure surges that can strain and potentially harm the pipes. Engineered to withstand high-pressure scenarios, ductile iron pipes exhibit remarkable resistance to water hammer. With their high tensile strength, these pipes can endure sudden pressure changes without warping or fracturing. This feature is especially crucial in high-rise constructions where water distribution must accommodate various floor pressures. Furthermore, the outstanding corrosion resistance of ductile iron pipes bolsters their ability to handle water hammer. Over time, corrosion weakens pipes, making them more prone to failure during pressure surges. However, the corrosion resistance of ductile iron pipes guarantees their structural integrity even in high-pressure circumstances. Moreover, the flexibility of ductile iron pipes enables them to absorb and dissipate the energy generated by water hammer. Consequently, the overall system experiences minimal impact, reducing the potential for damage. Absorbing energy also contributes to minimizing noise and vibrations associated with water hammer, thus enhancing the efficiency and comfort of the water supply system. To summarize, ductile iron pipes are well-suited to manage water hammer in high-rise buildings. Their strength, corrosion resistance, and flexibility make them a reliable choice for delivering water under varying pressures while upholding the system's integrity.

Q:Can ductile iron pipe be used for gas distribution systems?: Indeed, gas distribution systems can utilize ductile iron pipe. Ductile iron, being a robust and enduring substance, exhibits resistance to corrosion, thus rendering it suitable for subterranean applications. Its capacity to endure high pressure and furnish a dependable and enduring solution has led to its widespread employment in gas distribution systems for numerous years. Moreover, ductile iron pipes are acknowledged for their pliability, facilitating simpler installation and upkeep. Nevertheless, it is imperative to guarantee conformity with the specific requirements and standards of gas distribution systems when implementing ductile iron pipes to ensure the system's safety and efficiency.

Q:Can ductile iron pipes be installed outdoors?: Ductile iron pipe is a kind of cast iron. It is an alloy of iron, carbon and silicon.

Q:How does ductile iron pipe perform in extreme weather conditions?: Ductile iron pipes are renowned for their exceptional performance in adverse weather conditions. These pipes demonstrate remarkable durability, resistance, and flexibility, making them suitable for enduring harsh weather such as extreme temperatures, heavy rainfall, snowfall, and even earthquakes. One of the notable characteristics of ductile iron is its capacity to withstand damage caused by freezing temperatures. Unlike other materials, ductile iron pipes possess a low coefficient of thermal expansion, enabling them to resist the expansion and contraction that occurs during freeze-thaw cycles without experiencing cracks or breaks. Consequently, these pipes remain intact and continue to function optimally even in extremely cold conditions. Furthermore, ductile iron pipes exhibit excellent resistance to corrosion, rendering them highly resilient to the corrosive effects of severe weather. They are shielded by a sturdy zinc coating, which acts as a barrier against rust and other forms of corrosion. This coating, in conjunction with the inherent strength of ductile iron, grants these pipes exceptional resistance to the corrosive effects of rain, snow, and moisture. Moreover, ductile iron pipes possess superior flexibility, allowing them to accommodate ground movement and seismic activity. In areas prone to earthquakes or soil shifting, these pipes can absorb stress and strain without fracturing, guaranteeing a continuous supply of water and sewage services even in the most challenging weather conditions. Overall, ductile iron pipes excel in extreme weather conditions due to their durability, resistance to freezing, corrosion, and flexibility. Their ability to withstand the elements ensures an uninterrupted supply of water and sewage systems, providing reliability and peace of mind to utility providers and communities, even in the most unforgiving environments.

Q:How are ductile iron pipes protected during transportation and storage?: Various methods are employed to protect ductile iron pipes during transportation and storage, ensuring their integrity and preventing potential damage. The first step involves applying a protective layer, such as epoxy or zinc, to act as a barrier against corrosion. This coating effectively safeguards the pipes from moisture and other corrosive elements during transit and storage. To further safeguard the pipes, they are often bundled together and secured with straps or bands, preventing any movement or shifting that could cause mechanical damage. This bundling not only ensures the pipes remain intact but also facilitates easier handling and transportation in an organized manner. During transportation, the pipes are typically loaded onto pallets or placed in crates, providing additional protection and stability. This minimizes the risk of accidental impact or rough handling that may result in cracks or fractures. Proper labeling and marking of the pipes is crucial to ensure appropriate handling. This includes displaying handling instructions, weight limits, and pipe specifications, preventing mishandling and damage during transportation. Equally important are the storage conditions for maintaining the integrity of ductile iron pipes. They should be stored in a clean, dry, and well-ventilated area, protecting them from moisture and humidity. Direct sunlight and extreme temperatures should be avoided to prevent any potential degradation of the protective coating. In conclusion, protecting ductile iron pipes during transportation and storage involves the application of protective coatings, bundling and securing, suitable packaging materials, proper handling and labeling, and storage in appropriate conditions. These measures guarantee the pipes' quality and structural integrity, ensuring they arrive at their destination in optimal condition.

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