• DUCTILE IRON PIPE DN125K8/C/K9 System 1
  • DUCTILE IRON PIPE DN125K8/C/K9 System 2
  • DUCTILE IRON PIPE DN125K8/C/K9 System 3
DUCTILE IRON PIPE DN125K8/C/K9

DUCTILE IRON PIPE DN125K8/C/K9

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China Main Port
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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: Can ductile iron pipes be used for irrigation systems in saline soil conditions?
Yes, ductile iron pipes can be used for irrigation systems in saline soil conditions. Ductile iron pipes have excellent corrosion resistance properties, making them suitable for use in saline environments. However, it is important to consider the specific requirements and consult with experts to ensure proper selection and installation methods are implemented for optimal performance and durability in such conditions.
Q: What are the advantages of cast iron pipes?
Ductile iron pipe is under high water pressure, can resist the external load change and adapt to the geological conditions, the pipe has the advantages of high strength, good toughness, corrosion resistance, convenient installation, flexible interface, strong shock resistance, low labor intensity, can be applied to the poor geological location and across the road, without additional processing pipe, and then with strong corrosion resistance, and can be applied to coastal saline alkali area. At present, it is widely used in underground pipeline project. Large pipe installation project can reflect the advantages of convenient installation and low labor intensity.
Q: Do ductile iron pipes require internal linings or coatings?
Yes, ductile iron pipes typically require internal linings or coatings in order to prevent corrosion and extend their lifespan.
Q: How does ductile iron pipe perform in sandy or unstable soils?
Ductile iron pipe performs well in sandy or unstable soils due to its inherent strength, durability, and flexibility. Its high tensile strength and resistance to deformation make it capable of withstanding the pressure exerted by the surrounding soil. Additionally, the material's ability to flex and absorb ground movements helps to minimize the risk of pipe failure or damage in unstable soil conditions. Overall, ductile iron pipe provides a reliable and long-lasting solution for transporting fluids in challenging soil environments.
Q: Are ductile iron pipes suitable for deep burial installations?
Indeed, deep burial installations can accommodate ductile iron pipes. These pipes possess remarkable strength and endurance, rendering them highly suitable for subterranean purposes. They possess the ability to withstand the immense pressure exerted by soil as well as any external forces that may arise. Moreover, ductile iron pipes exhibit exceptional resistance to corrosion, a vital characteristic for ensuring long-lasting performance in buried settings. Furthermore, their flexibility enables them to endure ground movements and settle without fracturing. All in all, ductile iron pipes represent a dependable and economically efficient option for deep burial installations.
Q: Are there any special considerations for installing ductile iron pipe in rocky soils?
Yes, there are special considerations for installing ductile iron pipe in rocky soils. The presence of rocks can pose challenges during the installation process as they can cause damage to the pipe or impede its proper alignment. Therefore, it is important to carefully assess the soil conditions and rock content at the installation site. Additional measures such as proper bedding and backfilling techniques, using protective coatings or linings, and employing specialized equipment may be necessary to ensure the durability and longevity of the ductile iron pipe in rocky soils.
Q: Are ductile iron pipes suitable for airport runway drainage?
Yes, ductile iron pipes are suitable for airport runway drainage. Ductile iron pipes have excellent strength and durability, making them capable of withstanding heavy loads and extreme conditions, which are often encountered in airport operations. They are resistant to corrosion, which is crucial in a drainage system that may be exposed to various chemicals and environmental factors. Ductile iron pipes also have smooth inner surfaces, allowing for efficient flow of water and preventing blockages that could disrupt the drainage system. Additionally, they are easy to install and maintain, making them a reliable choice for airport runway drainage systems.
Q: What are the different lining materials available for ductile iron pipe?
There are several different lining materials available for ductile iron pipes. These linings are used to protect the pipe from corrosion and extend its lifespan. Some common lining materials include: 1. Cement Mortar Lining: This lining consists of a layer of cement mortar applied to the interior surface of the pipe. It provides a smooth and durable barrier against corrosion and is commonly used in water and wastewater applications. 2. Polyethylene Encasement: Polyethylene encasement involves wrapping the pipe with a layer of polyethylene film. This lining provides excellent corrosion protection and is often used in aggressive soil conditions. 3. Polyurethane Lining: Polyurethane lining is a spray-applied material that forms a seamless and flexible barrier inside the pipe. It offers superior resistance to chemicals and abrasion, making it suitable for applications involving aggressive fluids. 4. Epoxy Lining: Epoxy lining is a popular choice for lining ductile iron pipes, as it provides excellent resistance to corrosion and chemicals. It is typically applied as a liquid coating that cures to form a smooth and protective layer. 5. Zinc Coating: Zinc coating, also known as galvanizing, involves applying a layer of zinc to the exterior surface of the pipe. This lining provides corrosion resistance and is commonly used in outdoor and exposed applications. These lining materials offer different advantages and are chosen based on the specific needs of the application. Factors such as the type of fluid being transported, environmental conditions, and expected service life are considered when selecting the most suitable lining material for ductile iron pipes.
Q: Can ductile iron pipes be used for pressure surge applications?
Yes, ductile iron pipes can be used for pressure surge applications. Ductile iron pipes have excellent strength and durability, making them suitable for handling surge pressures caused by sudden changes in flow rates or water hammer events. They can withstand high internal pressures and have a high resistance to impact and fatigue. Additionally, ductile iron pipes have a smooth interior surface that allows for efficient flow of fluids, minimizing the potential for pressure surges. However, it is important to consider factors such as pipe size, wall thickness, and proper installation techniques to ensure the pipes can safely handle the specific pressure surge conditions in a given application. Consulting with a professional engineer or pipe manufacturer is recommended to determine the suitability of ductile iron pipes for pressure surge applications.
Q: Do ductile iron pipes require external protection against stray electrical currents?
Ductile iron pipes indeed necessitate external safeguarding against stray electrical currents. The presence of such currents can induce corrosion in the pipes, resulting in premature failure and probable leakage. To counteract this, protective coatings or wraps are employed on the ductile iron pipes, creating a shield between the pipes and the electrical currents. This safeguarding measure guarantees the durability and dependability of the pipes, warding off expensive repairs and potential safety risks.

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