Self-restrained Joint Ductile Iron Pipe
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1 Metric Ton m.t.
- Supply Capability:
- 300000 Metric Tons per Year m.t./month
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Overview of Ductile Iron Pipe
Ductile cast iron, also called ductile iron, spheroidal graphite iron, or nodular cast iron, is a type of cast iron invented in 1943. While most varieties of cast iron are brittle, ductile cast iron is much more flexible and elastic, due to its nodular graphite inclusions.
Graphite particles exist in the form of sphericity in ductile cast iron. Sizes graphite particle are restricted to 6 -7 class and spheroidizing rate should not be less than 80%. Thus after the spheroidizing process, ductile iron will be endowed with mechanical properties of both cast iron and steel.
Much of the production of ductile iron is in the form of ductile cast iron pipe, used for water supply and sewerage design. Ductile cast iron pipe is stronger and easier to tap, requires less support and provides greater flow area compared with pipes made from other materials like PVC, concrete, polyethylene or steel. Ductile Iron Pipe is the most widely-used pipeline product in water supply and water drain/sewage projects.
General introduction of Self-restrained Joint Ductile Iron Pipe
•Material : Ductile Cast Iron
•Size Range : DN 80mm to DN 1200mm
•Unit Effective Length : 6m or 5.7m or negotiable
•Manufacture Standard: ISO 2531:1998/ EN 545:2006/EN 598:2007
•Annual capacity : 300,000 tons
•Coating Exterior: Zinc 130g/m2 according to ISO 8179-1 and bitumen coating 70 microns.
•Cement Interior: Portland Cement/ High Alumina Cement/ Sulphate Resisting Cement Lining according to ISO 4179
•Special requirements on external coating and internal lining can be applied
•We also provide accessories such as SBR/EPDM rubber gaskets, lubricant paste, pipe caps, PE sleeves, etc.
Mechanical Properties
|
Item |
Tensile Strength (N/mm2) |
Elongation(%) |
Proof Stress (N/mm2) |
Hardness HB | ||
|
DN80 TO DN2600 |
DN80 TO DN1000 |
DN1100 TO DN2000 |
DN80 TO DN1000 |
DN100 TO DN2000 | ||
|
Pipe |
≥420 |
≥10 |
≥7 |
≥270 |
≥300 |
≤230 |
|
Fittings |
≥420 |
≥5 |
≥300 |
≤250 | ||
Standard Lining and Coating
External Protection
Metallic zinc complying with the standard ISO8179,and bitumen,or special protective coating according to the customer’s requirement.
Notes:
. Pipes and fittings conform to the requirements of International Standard ISO 2531,British Eurpean Standard BS
. EN545,and their extensions. If information given in English and Chinese differs,the English version prevails.
. Dimensions and masses of pipes and fittings are approximate and are for refererces only;accurate dimensions and
. masses should be confirmed with us at the time of placing order. Flanged joint pipes and fittings are generally
. available with PN10,PN16 and PN25. Socketed joint pipes and fittings generally available with T type and K type joints.
Features of Self-restrained Joint Ductile Iron Pipe:
. Ductile Iron Pipe offers proven reliability and the quality.
. It is quick and easy installation.
. The ductile iron pipe has high pressure capability.
Application:
Used for water and sewer lines.
Production Process
Much of the production of ductile iron is in the form of ductile cast iron pipe, used for water supply and sewerage design. Ductile iron pipe is stronger and easier to tap, requires less support and provides greater flow area compared with pipes made from other materials like PVC, concrete, polyethylene or steel.
Specification of Self-restrained Joint Ductile Iron Pipe:
Standard wall thickness of Self-restrained Joint Ductile Iron Pipe
|
Nominal Diameter |
Wall Thickness(mm) | ||||||
|
DN(mm) |
Pipe |
Fittings | |||||
|
Class C |
K8 |
K9 |
K10 |
K12 |
K12 |
K14 | |
|
80 |
4.4 |
6 |
6.0 |
7 |
8.1 | ||
|
100 |
4.4 |
6.0 |
7.2 |
8.4 | |||
|
125 |
4.5 |
6.3 |
7.5 |
8.8 | |||
|
150 |
4.5 |
6.3 |
7.8 |
9.1 | |||
|
200 |
4.7 |
6.3 |
8.4 |
9.8 | |||
|
250 |
5.5 |
6.8 |
7.5 |
9 |
9 |
10.5 | |
|
300 |
6.2 |
6.4 |
7.2 |
8 |
9.6 |
9.6 |
11.2 |
|
350 |
6.3 |
6.8 |
7.7 |
8.5 |
10.2 |
10.2 |
11.9 |
|
400 |
6.5 |
7.2 |
8.1 |
9 |
10.8 |
10.8 |
12.6 |
|
450 |
6.9 |
7.6 |
8.6 |
9.5 |
11.4 |
11.4 |
13.3 |
|
500 |
7.5 |
8 |
9 |
10 |
12 |
12 |
14 |
|
600 |
8.7 |
8.8 |
9.9 |
11 |
13.2 |
13.2 |
15.4 |
|
700 |
8.6 |
9.6 |
10.8 |
12 |
14.4 |
14.4 |
16.8 |
|
800 |
9.6 |
10.4 |
11.7 |
13 |
15.6 |
15.6 |
18.2 |
|
900 |
11.6 |
11.2 |
12.6 |
14 |
16.8 |
16.8 |
19.6 |
|
1000 |
12.6 |
12 |
13.5 |
15 |
18 |
18 |
21 |
|
1200 |
13.6 |
13.6 |
15.3 |
17 |
20.4 |
20.4 |
22.8 |
|
1400 |
15.7 |
15.2 |
17.1 |
19 |
22.8 |
22.8 |
26.6 |
|
1500 |
16.7 |
16 |
18 |
20 |
24 |
24 |
31 |
|
1600 |
17.7 |
16.8 |
18.9 |
21 |
25.2 |
25.2 |
29.4 |
|
1800 |
19.7 |
18.4 |
20.7 |
23 |
27.6 |
27.6 |
32.2 |
|
2000 |
21.8 |
20 |
22.5 |
25 |
30 |
30 |
35 |
Self-restrained Joint
Self-restrained Type is a push-in self anchored joint. The principle of joint anchoring consists in transmitting the axial forces from one pipeline to the following one, thus ensuring that the joint does not come apart.
The application of self-restrained joints is of particular interest where congested conditions preclude concrete anchor block constructions or in poorly cohesive soils.Self-restrained joints combine the advantages of flexible joint pipes and welded joint pipes.
Photo of Self-restrained Joint Ductile Iron Pipe
- Q:Can ductile iron pipes be used in areas with high levels of hydrogen sulfide gas?
- Yes, ductile iron pipes can be used in areas with high levels of hydrogen sulfide gas. Ductile iron pipes have a high corrosion resistance, which makes them suitable for such environments. Additionally, they have been successfully used in sewage systems and wastewater treatment plants where hydrogen sulfide gas is commonly present.
- Q:What are the disadvantages of using ductile iron pipe?
- Using ductile iron pipe comes with several disadvantages. To begin with, one major drawback is its cost. Ductile iron pipe tends to be pricier than alternative piping materials like PVC or traditional cast iron. This can make it less desirable for projects with tight budgets. Furthermore, ductile iron pipe is relatively heavy in comparison to other materials. This makes it more challenging to handle and install, requiring specialized equipment and additional labor. The weight also increases the risk of damage during transport and installation. Another disadvantage is its susceptibility to corrosion. While ductile iron is more resistant to corrosion than traditional cast iron, it is still prone to rust and deterioration over time. This can result in a reduced lifespan and potential leaks or pipe failures. In addition, ductile iron pipe has limited flexibility and is not as resistant to ground movement or settlement. This can lead to cracks or breaks in the pipe, especially in areas with unstable soil conditions or seismic activity. Finally, ductile iron pipe can have a rough interior surface, which can increase friction and decrease flow capacity. This results in higher pumping costs and decreased efficiency in fluid transportation. In conclusion, although ductile iron pipe offers advantages like strength and durability, it is important to carefully consider these drawbacks when selecting the appropriate piping material for a specific project.
- Q:Can ductile iron pipes be used for road and highway drainage?
- Yes, ductile iron pipes can be used for road and highway drainage. Ductile iron pipes have excellent strength and durability, making them suitable for use in various applications, including drainage systems. They have high tensile strength and can withstand heavy loads and traffic, making them ideal for road and highway drainage where constant vehicle movement is expected. Ductile iron pipes are also resistant to corrosion and offer a long service life, reducing maintenance and replacement costs. Additionally, their smooth inner surface allows for efficient water flow, preventing waterlogging and ensuring proper drainage. Therefore, ductile iron pipes are a reliable and effective choice for road and highway drainage systems.
- Q:Do ductile iron pipes require internal linings or coatings?
- Ductile iron pipes do not typically require internal linings or coatings. Ductile iron is known for its inherent corrosion resistance, which is primarily due to its composition and microstructure. The iron in ductile iron pipes is treated with magnesium, resulting in the formation of graphite nodules that give the material its ductile properties. This microstructure also provides a protective layer on the surface of the pipe, which helps to prevent corrosion. Additionally, ductile iron pipes have been used for several decades without the need for internal linings or coatings, proving their durability and resistance to corrosion. The smooth interior surface of ductile iron pipes also helps to minimize friction and maintain efficient flow rates. However, in certain cases where the conveyed fluid is highly corrosive or abrasive, or if the water quality is aggressive, internal linings or coatings may be recommended. These linings or coatings can be applied to protect the pipe from chemical attack or to prevent the leaching of iron into the water supply. Ultimately, the decision to use internal linings or coatings on ductile iron pipes depends on various factors such as the specific application, water quality, and local regulations. Consulting with professionals in the field, such as engineers or pipe manufacturers, can provide more tailored advice for specific scenarios.
- Q:What are ductile iron pipes?
- Ductile iron pipes are a type of iron piping that possess unique properties, making them highly durable and flexible. They are made by adding small amounts of magnesium to cast iron, which transforms the brittle material into a stronger and more malleable form. Due to their high tensile strength and ability to withstand extreme conditions, ductile iron pipes are commonly used in various applications such as water and sewage systems, industrial plants, and transportation infrastructure.
- Q:What is the expected noise reduction of ductile iron pipes?
- The expected noise reduction of ductile iron pipes can vary depending on various factors, such as the thickness of the pipes, the specific installation method, and the surrounding environment. However, ductile iron pipes are generally known for their ability to significantly reduce noise levels compared to other materials, thanks to their dense and robust structure that effectively dampens sound vibrations.
- Q:Can ductile iron pipes be used for railway bridges?
- Yes, ductile iron pipes can be used for railway bridges. Ductile iron is a type of strong and durable cast iron that has excellent tensile strength and flexibility. These properties make it suitable for various applications, including railway bridges. Ductile iron pipes can be used to construct railway bridge components such as supports, beams, and columns. They provide structural stability and can withstand heavy loads and vibrations associated with railway traffic. Additionally, ductile iron pipes are resistant to corrosion, which is crucial for railway bridges exposed to outdoor conditions. Therefore, ductile iron pipes are a viable option for railway bridge construction.
- Q:How are ductile iron pipes protected against internal corrosion?
- To safeguard ductile iron pipes from internal corrosion, a range of preventive measures are implemented. The foremost technique involves the application of a protective coating on the pipe's inner surface. This coating acts as a barrier that separates the pipe from the conveyed fluid, thereby minimizing the risk of direct contact and corrosion. Another commonly employed method is the usage of a cement mortar lining, which fortifies the protective barrier, thereby reducing the possibility of corrosion, even in aggressive environments. Moreover, this lining ensures a smoother surface, enhancing fluid flow by diminishing friction. Apart from coatings and linings, ductile iron pipes are often designed with corrosion-resistant alloys or additives. These alloys, such as zinc or epoxy, are incorporated during the manufacturing process, offering an additional layer of defense against internal corrosion. They function as sacrificial anodes, corroding over time to shield the underlying iron from degradation. Regular maintenance and inspection play a vital role in safeguarding ductile iron pipes against internal corrosion. Monitoring the condition of protective coatings, identifying any signs of degradation or damage, and promptly addressing such issues are imperative to ensure the long-term integrity of the pipes. In summary, a combination of protective coatings, cement mortar linings, corrosion-resistant alloys, and regular maintenance efforts collaboratively safeguard ductile iron pipes against internal corrosion. This approach prolongs their lifespan and guarantees the secure transportation of fluids.
- Q:What is the expected abrasion resistance of ductile iron pipes?
- The expected abrasion resistance of ductile iron pipes is generally high. Ductile iron pipes are known for their durability and strength, making them suitable for various applications, including transporting water, sewage, and other fluids. The material composition of ductile iron pipes, which includes a significant amount of carbon and silicon, contributes to their abrasion resistance. Ductile iron pipes are designed to withstand the abrasive forces that can occur during the transportation of fluids. They have a smooth internal surface that reduces friction and minimizes the potential for abrasion. Additionally, the material's inherent toughness and resistance to wear and tear make ductile iron pipes less prone to damage caused by abrasive particles or debris in the flowing fluid. However, it is important to note that the expected abrasion resistance of ductile iron pipes can also depend on various factors such as the velocity and nature of the fluid being transported, the presence of corrosive substances, and the installation conditions. In some cases, additional protective measures such as linings or coatings may be required to enhance the pipes' resistance to abrasion. Overall, ductile iron pipes are known for their excellent abrasion resistance, but it is always advisable to consider specific application requirements and consult with experts to ensure the appropriate selection and installation of the pipes for optimal performance and longevity.
- Q:Can ductile iron pipes be used for gravity sewer systems?
- Yes, ductile iron pipes can be used for gravity sewer systems. Ductile iron pipes are known for their durability, strength, and resistance to corrosion, making them suitable for various applications including sewer systems. These pipes have excellent tensile strength and can withstand high pressure and heavy loads, making them ideal for gravity sewer systems where wastewater flows by gravity rather than being pumped. Additionally, ductile iron pipes have a long lifespan and require minimal maintenance, making them a cost-effective choice for sewer infrastructure.
1. Manufacturer Overview |
|
|---|---|
| Location | Henan, China |
| Year Established | 1958 |
| Annual Output Value | Below US$1 Million |
| Main Markets | Mid East, Africa, South Asia, Eastern Asia |
| Company Certifications | ISO 9001:2008；ISO2531:2000 |
2. Manufacturer Certificates |
|
|---|---|
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period | |
3. Manufacturer Capability |
|
|---|---|
| a)Trade Capacity | |
| Nearest Port | Tianjin; Qingdao |
| Export Percentage | 1% - 10% |
| No.of Employees in Trade Department | 3000 People |
| Language Spoken: | English; Chinese; Spain; Alabic |
| b)Factory Information | |
| Factory Size: | Above 150,000 square meters |
| No. of Production Lines | Above 6 |
| Contract Manufacturing | OEM Service Offered; Design Service Offered |
| Product Price Range | Average |
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Self-restrained Joint Ductile Iron Pipe
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1 Metric Ton m.t.
- Supply Capability:
- 300000 Metric Tons per Year m.t./month
OKorder Service Pledge
OKorder Financial Service
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