• DUCTILE IRON PIPE DN80 K9 System 1
  • DUCTILE IRON PIPE DN80 K9 System 2
  • DUCTILE IRON PIPE DN80 K9 System 3
  • DUCTILE IRON PIPE DN80 K9 System 4
DUCTILE IRON PIPE DN80 K9

DUCTILE IRON PIPE DN80 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:How are ductile iron pipes tested for hydrostatic pressure?
For water and wastewater applications, ductile iron pipes are widely used because of their strength and durability. To guarantee their quality and dependability, these pipes undergo hydrostatic pressure testing. The process of hydrostatic pressure testing involves applying internal pressure on the ductile iron pipes at levels higher than their normal operating pressure. This is done to evaluate their ability to withstand the maximum pressure they may encounter during their service life. To begin the testing, a sample set of pipes is carefully selected from a production batch or shipment. These samples are meticulously prepared by removing any surface coatings or debris that could affect the accuracy of the test results. The prepared samples are then placed in a specially designed test rig or test line. The test rig is equipped with all the necessary connections, valves, and gauges to accurately control and monitor the test conditions. Once the samples are secured in the test rig, water or another suitable test fluid is slowly introduced into the pipes. The pressure is gradually increased to a preset level, typically surpassing the expected operating pressure by a certain factor. This elevated pressure is maintained for a specified duration, usually several hours, to evaluate the structural integrity and leak resistance of the pipes. Throughout the test, the pipes are closely monitored for any signs of leakage, deformation, or failure. Skilled technicians or engineers observe the pressure gauges and visually inspect the pipes for any visible defects or abnormalities. Additionally, automated systems may be used to continuously record and analyze the pressure readings, ensuring accurate data collection. After the specified test duration, the pressure is gradually released, and the pipes are meticulously inspected for any permanent deformation or residual stress. This inspection may involve visual examination, dimensional measurements, or non-destructive testing techniques like ultrasonic testing or magnetic particle inspection. The test results are then assessed against the relevant industry standards or specifications to determine if the pipes comply with safety and performance requirements. If the pipes pass the hydrostatic pressure test, they are considered suitable for their intended application. However, if any issues or failures are identified, further investigation, analysis, or corrective actions may be necessary before the pipes can be approved for use. In conclusion, hydrostatic pressure testing plays a vital role in ensuring the quality and reliability of ductile iron pipes. By subjecting these pipes to rigorous testing procedures, manufacturers can provide customers with pipes that meet the highest standards of safety and performance.
Q:How can 4 inch ductile iron pipe be connected with 2 inch galvanized pipe?
Ductile cast iron used for more than 18 by adding nodulizer, after centrifugal ductile cast iron machine high speed centrifugal cast pipe, called "ductile" (Ductile Cast Iron Pipes), referred to as ball pipe, ductile iron pipe and ductile iron pipe etc.. The utility model is mainly used for conveying water, and is an ideal choice for tap water pipes.
Q:What are the common methods for leak detection in ductile iron pipes?
There are several common methods for leak detection in ductile iron pipes. These methods are widely used by professionals in the field to identify and locate leaks in a timely manner. 1. Acoustic Leak Detection: This method involves using specialized equipment to listen for the sound of water escaping from the pipe. The equipment detects the sound of the leak and helps pinpoint its location. This method is effective for both pressurized and non-pressurized pipes. 2. Visual Inspection: Visual inspection involves physically inspecting the pipe system for any visible signs of leaks such as water stains, wet spots, or puddles. This method is relatively simple and can be effective for detecting visible leaks in accessible areas. 3. Pressure Testing: Pressure testing involves pressurizing the pipe system and monitoring for any drops in pressure. If there is a leak, the pressure will drop, indicating its presence. This method is commonly used during installation or maintenance and can help identify leaks in inaccessible areas. 4. Infrared Thermography: Infrared cameras are used to detect leaks by measuring temperature differences. Water escaping from a pipe can create a temperature difference, which can be detected by the camera. This method is particularly effective for identifying hidden leaks behind walls or underground. 5. Tracer Gas Testing: Tracer gas testing involves injecting a specific gas, such as helium or hydrogen, into the pipe system. If there is a leak, the gas will escape and can be detected using specialized equipment. This method is highly sensitive and can locate even small leaks. 6. Soil Gas Monitoring: This method involves monitoring the soil around the pipe for the presence of gases emitted by leaking water. By analyzing the soil gas composition, professionals can determine the location of the leak. It is important to note that the choice of method may vary depending on the specific circumstances, such as the size of the pipe system, accessibility, and severity of the leak. In some cases, a combination of methods may be used to ensure accurate and comprehensive leak detection.
Q:Can ductile iron pipes be used for trenchless installation methods?
Yes, ductile iron pipes can be used for trenchless installation methods. Trenchless installation methods are techniques used to install underground pipes without the need for extensive digging or trenching. Ductile iron pipes are a strong and durable choice for these methods due to their high tensile strength and flexibility. They can be installed using various trenchless techniques such as horizontal directional drilling (HDD), pipe bursting, and slip lining. These methods allow for efficient and cost-effective installation of ductile iron pipes without disrupting the surrounding environment. Additionally, the corrosion resistance of ductile iron pipes makes them suitable for trenchless installations in various soil conditions and environments.
Q:Can ductile iron pipes be made of flexible waterproof sleeves?
Usually, a bushing is used to make a pool. It is the conduit to the sink. However, the common casing is difficult to seal so that there is water leakage between the casing and the pipe and water leakage between the casing and the wall. Only the waterproof sleeve can solve the water leakage between the casing and the wall, but it can not solve the seal between the casing and the pipe, and the flexible waterproof bushing can solve two problems.
Q:How does ductile iron pipe perform in high-temperature steam applications?
Ductile iron pipe performs quite well in high-temperature steam applications. Ductile iron is a strong and durable material, known for its ability to withstand high pressures and temperatures. When exposed to high-temperature steam, ductile iron pipes maintain their structural integrity and do not deform or crack easily. They have a high resistance to thermal expansion and contraction, making them suitable for applications where temperature variations are common. Additionally, ductile iron pipes have excellent corrosion resistance, which is especially important in steam applications where the presence of moisture can lead to accelerated corrosion. Overall, ductile iron pipes are a reliable choice for high-temperature steam applications, providing long-lasting performance and ensuring the safe and efficient transportation of steam.
Q:Can ductile iron pipe be used for industrial applications?
Yes, ductile iron pipe can be used for industrial applications. Ductile iron pipes are known for their durability, strength, and resistance to corrosion, making them suitable for various industrial settings. They can handle high-pressure and heavy-duty applications, making them ideal for industries such as water and wastewater, oil and gas, and chemical processing.
Q:Can ductile iron pipes be used in areas with high levels of heavy metal contamination?
Ductile iron pipes can indeed be used in areas with high levels of heavy metal contamination. Ductile iron is a strong and durable material that is resistant to corrosion, making it suitable for various environmental conditions, including areas with heavy metal contamination. The high levels of heavy metals in the surrounding soil or water do not affect the structural integrity or performance of ductile iron pipes. These pipes have a protective lining, usually made of cement mortar or polyethylene, which acts as a barrier between the pipe and the surrounding environment. This lining prevents the heavy metals from leaching into the water flowing through the pipes. Furthermore, ductile iron pipes have been proven to be highly resistant to chemical corrosion, including the corrosion caused by heavy metals. They have been extensively used in industrial applications where heavy metal contamination is common, such as wastewater treatment plants, industrial facilities, and mining sites. However, it is important to note that while ductile iron pipes can withstand high levels of heavy metal contamination, regular monitoring and maintenance are still necessary. This ensures that the protective lining remains intact and any potential issues are addressed promptly. In summary, ductile iron pipes are a suitable choice for areas with high levels of heavy metal contamination. Their strength, durability, and resistance to corrosion make them reliable for transporting water and other fluids, even in challenging environments.
Q:Are ductile iron pipes resistant to acid mine drainage corrosion?
Yes, ductile iron pipes are generally resistant to acid mine drainage (AMD) corrosion. Ductile iron is a highly durable material that has been widely used in various industries, including mining and water distribution, due to its excellent corrosion resistance properties. Acid mine drainage is a significant environmental problem that occurs when water comes into contact with sulfide minerals in mining areas, resulting in the formation of sulfuric acid. This acid can corrode and deteriorate various materials, including pipes, leading to infrastructure damage and water contamination. Ductile iron pipes have a protective layer formed by a cementitious lining, typically made of cement mortar or an epoxy coating. This lining acts as a barrier between the corrosive AMD and the pipe material, preventing direct contact and reducing the likelihood of corrosion. Furthermore, ductile iron pipes have a high resistance to both internal and external corrosion, making them well-suited for environments where acid mine drainage may be present. They have proven to be highly reliable and long-lasting even in harsh conditions, ensuring the continued integrity of the water distribution system and minimizing the potential for leaks or failures. However, it is important to note that the resistance of ductile iron pipes to acid mine drainage corrosion can also depend on several other factors, such as the specific composition and concentration of the AMD, the duration of exposure, and the temperature. Therefore, it is recommended to consult with experts and conduct proper material testing and analysis to ensure the suitability of ductile iron pipes in specific AMD environments.
Q:How to choose a ductile cast iron pipe with guaranteed quality
1, first of all choose the regular manufacturers of ductile iron pipe products.2, the choice of ductile iron pipe, should be based on the specific circumstances of the construction site, select the pipe and fittings corresponding to the form of interface.3, rubber rings recommend the use of three yuan ethylene propylene rubber ring and so on.4, listen to the voice, knocking the iron: short duration. The iron ball: crisp sound, echo, short duration5, the cutting surface is gray: gray, shiny surface seems very dark, very rough. Ductile iron: gray, gray luster is bright, like gray surface roughness.

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