• DUCTILE IRON PIPE DN150 k9 System 1
  • DUCTILE IRON PIPE DN150 k9 System 2
  • DUCTILE IRON PIPE DN150 k9 System 3
  • DUCTILE IRON PIPE DN150 k9 System 4
DUCTILE IRON PIPE DN150 k9

DUCTILE IRON PIPE DN150 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 typical pressure rating of ductile iron pipes?
The typical pressure rating of ductile iron pipes ranges from 150 to 350 PSI (pounds per square inch), depending on the diameter and class of the pipe.
Q:What is the expected internal lining material for ductile iron pipes?
Typically, the anticipated internal lining materials for ductile iron pipes are either cement mortar lining or polyethylene lining. Cement mortar lining serves as a protective layer on the inner surface of the ductile iron pipe, shielding it from corrosion and prolonging its lifespan. Conversely, polyethylene lining is a thermoplastic substance that possesses resistance against corrosion, abrasion, and chemicals, making it well-suited for situations involving aggressive substances or poor water quality. Depending on the project's specific requirements and conditions, both lining materials offer their own advantages and are commonly utilized within the industry.
Q:Are ductile iron pipes resistant to impact damage?
Yes, ductile iron pipes are highly resistant to impact damage due to their inherent strength and durability.
Q:Can ductile iron pipes be used for underground geothermal systems?
Yes, ductile iron pipes can be used for underground geothermal systems. Ductile iron is known for its strength and durability, making it a suitable choice for underground applications. Additionally, it has good corrosion resistance, which is essential in geothermal environments where water and soil conditions can be aggressive.
Q:How to choose a ductile cast iron pipe with guaranteed quality
Cutting testing: iron filing resistance, filing issued a "Shua" sound, little sticky file, debris was gray with a small amount of white spot, look at the particles of different size, with small particles of fine powder, finger milling, it is easy to make fingers black. Ductile iron filing: when the resistance ratio of gray iron is slightly larger, there are obvious "Shua" sound ", little sticky file, debris was gray with fine bright particles ranging in size but with large particles, with finger milling chips, can be dyed black to gray fingers, but more black the degree of light
Q:What are the typical surge anticipation measures for ductile iron pipe?
To mitigate potential damage caused by surges or water hammer in ductile iron pipe systems, various techniques can be employed. These measures aim to absorb or redirect sudden pressure changes, preventing pipe rupture or failure. Common surge anticipation measures for ductile iron pipe include: 1. Incorporating air chambers strategically along the pipeline to create a cushion of air that absorbs surge energy. As the pressure wave travels through the pipe, the air compresses, reducing the impact on the pipe and minimizing the risk of damage. 2. Connecting surge tanks, which act as storage reservoirs for excess pressure, to the pipeline. When a surge occurs, the surge tank absorbs the excess water volume, preventing damage to the pipe. The stored water is gradually released back into the system, stabilizing the pressure. 3. Installing surge relief valves in the pipeline to automatically release excess pressure during surge events. These valves open when the pressure exceeds a preset limit, allowing the surge to dissipate harmlessly. Surge relief valves can be adjusted to release the desired amount of pressure, ensuring the safety of the ductile iron pipe. 4. Utilizing water hammer arrestors, which are devices that absorb the shock generated by surges and water hammer. These devices consist of sealed chambers filled with a compressible gas or liquid that absorbs sudden pressure changes. By absorbing the energy, water hammer arrestors protect the ductile iron pipe from potential damage. 5. Using surge suppressors, devices that regulate the flow of water during surge events. Surge suppressors are designed to reduce the speed at which surges travel through the pipe, minimizing the impact on the system. These devices can be installed at critical points in the pipeline to prevent damage to the ductile iron pipe. To determine the most suitable surge anticipation measures for ductile iron pipe installations, it is important to consider the specific requirements of the pipeline system and consult experienced engineers or industry professionals.
Q:How does the white iron appear in the case of ductile iron?
The addition of 0.2% SiC in the raw iron water can effectively reduce the chill.
Q:What is the maximum operating pressure for ductile iron pipes?
The maximum operating pressure of ductile iron pipes may vary based on factors like pipe diameter, wall thickness, and the specific usage. Nonetheless, typically, ductile iron pipes are engineered to endure pressures of up to 350 psi (pounds per square inch), and occasionally even higher. It is worth highlighting that to ascertain the precise maximum operating pressure for a specific ductile iron pipe system, one should refer to local regulations, engineering standards, and manufacturer specifications.
Q:What is the process of fusion bonding for ductile iron pipes?
Ductile iron pipes are joined together through the fusion bonding process, which involves applying heat and pressure to create a strong and long-lasting bond. This technique is commonly used in the construction and installation of underground water, sewer, and gas pipelines. To start the fusion bonding process, the surfaces of the pipes are thoroughly cleaned and prepared. This includes removing any dirt, debris, or rust that could hinder proper bonding. Specialized tools and techniques, such as wire brushing or sandblasting, are often utilized to ensure a clean and smooth surface. Once the surfaces are prepared, the pipes are aligned and securely clamped together. A fusion bonding machine, also known as a fusion welder, is then employed to apply heat and pressure to the joint. The fusion bonding machine consists of heating elements positioned around the joint and a hydraulic system that applies the necessary pressure. The heating elements, typically powered by electricity or gas, are designed to reach high temperatures capable of melting the ductile iron material. As the heat is applied, the ductile iron surfaces soften and fuse together, creating a strong bond. The pressure from the fusion bonding machine ensures that the molten iron flows evenly and uniformly between the joint surfaces, resulting in a seamless connection. The duration of the fusion bonding process varies depending on the size and thickness of the pipes and the specific project requirements. Once the fusion bonding is complete, the joint is allowed to cool and solidify, forming a permanent and leak-proof connection. Fusion bonding offers numerous advantages for ductile iron pipes. It provides a reliable and durable joint that can withstand high pressure, temperature variations, and external loads. The seamless connection also minimizes the risk of leaks, which is particularly important for underground pipelines that transport water, sewage, or gas. Overall, fusion bonding is a widely utilized technique for joining ductile iron pipes, ensuring their structural integrity and longevity in various infrastructure projects.
Q:Can ductile iron pipes be used for water treatment plants?
Yes, ductile iron pipes can be used for water treatment plants. Ductile iron pipes are often chosen for water treatment plants due to their durability, strength, and corrosion resistance. They can handle high-pressure water systems and are resistant to wear and tear, making them suitable for transporting treated water in large quantities. Additionally, ductile iron pipes have a long lifespan, which reduces the need for frequent replacements and maintenance, making them a cost-effective choice for water treatment plants.

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