In the world of modern infrastructure, Ductile Iron Pipe, also known as Nodular Cast Iron Pipe, Ductile Cast Iron Pipes, or Spheroidal Graphite Cast Iron Pipe, and commonly abbreviated as DIP, has emerged as a cornerstone for numerous engineering projects. Unlike traditional Cast Iron Pipe, DIP undergoes a transformative process during manufacturing. Through the addition of specific alloying elements, the graphite within the iron matrix transforms into spherical nodules. This unique microstructure is what gives DIP its exceptional mechanical properties, making it far superior in strength, flexibility, and durability.
Centrifugally Cast Ductile Iron Pipes are produced using a highly sophisticated manufacturing technique. Molten iron is poured into a rapidly rotating mold, and due to centrifugal force, the iron is evenly distributed along the inner surface of the mold, creating pipes with a consistent wall thickness and a smooth internal finish. This method not only ensures high precision in dimensions but also maximizes the material's strength. The resulting pipes have an outstanding ability to withstand high internal pressures, making them ideal for various applications, especially those related to water distribution.
Water distribution systems rely heavily on Ductile Iron Pipe for their reliability and efficiency. These pipes are capable of transporting large volumes of water over extensive distances, whether above ground or buried deep beneath the surface. The smooth inner surface of centrifugally cast DIP reduces friction, minimizing energy losses and ensuring a steady flow of water. Moreover, DIP's resistance to external forces such as soil movement, ground vibrations, and impact makes it a robust choice for urban and rural water supply networks.
When it comes to installation, Flanged Ductile Iron Pipe and Socketed End Ductile Iron Pipe offer distinct advantages. Flanged DIP features flat, circular flanges at the pipe ends, which are connected using bolts and gaskets. This connection method provides a secure and leak - proof joint, and it is relatively easy to assemble and disassemble, making it suitable for applications where maintenance or modifications may be required in the future. On the other hand, Socketed End Ductile Iron Pipe utilizes a spigot - and - socket design. The spigot of one pipe fits snugly into the socket of another, and a rubber gasket is inserted to create a watertight seal. This type of connection is highly flexible, allowing for some degree of angular movement, which is beneficial in areas prone to ground settlement or seismic activity.
Pipe Fittings play a crucial role in the successful implementation of DIP - based systems. These fittings, which are also made from ductile iron, come in various forms such as elbows, tees, reducers, and couplings. They enable changes in pipeline direction, branching of the system, and adjustments in pipe diameter. High - quality pipe fittings ensure seamless integration with DIP, maintaining the overall structural integrity and hydraulic performance of the entire piping network. Without proper fittings, creating a functional and efficient water distribution system would be nearly impossible.
To further enhance the lifespan and performance of Ductile Iron Pipe, Pipe Coating is an essential step. A variety of coating materials are used, each offering specific protective benefits. Zinc - based coatings are among the most popular. When applied to the surface of DIP, zinc forms a protective layer that acts as a sacrificial anode. Even if the coating is scratched or damaged, the zinc will corrode preferentially, protecting the underlying iron from rust and other forms of corrosion. Epoxy coatings, on the other hand, provide a smooth, chemically resistant barrier. They are highly effective in preventing the intrusion of chemicals and contaminants, making them suitable for pipes transporting treated water or industrial fluids. Polyethylene coatings offer excellent abrasion resistance, protecting the pipes during installation and operation in harsh environments.
In industrial applications, Ductile Iron Pipe's versatility shines through. It can be used in the conveyance of industrial wastewater, where its corrosion resistance and strength are put to the test against potentially aggressive chemicals. Additionally, in power plants, DIP is employed for cooling water systems, as it can withstand the high flow rates and temperature fluctuations associated with these operations.
In the construction of large - scale infrastructure projects, such as dams and water treatment plants, Ductile Iron Pipe is often the material of choice. Its ability to handle high pressures and heavy loads, combined with its long - term reliability, makes it a cost - effective solution in the long run. Despite the initial investment being relatively higher compared to some other piping materials, the reduced maintenance costs and extended service life of DIP more than compensate for the upfront expense.
In conclusion, Ductile Iron Pipe, with its various forms and associated components, has become an indispensable part of modern infrastructure. From its unique manufacturing process that gives it superior mechanical properties to the wide range of connection methods, essential pipe fittings, and protective pipe coatings, every aspect of DIP is designed to meet the demanding requirements of water distribution and other critical applications. As cities grow and infrastructure needs expand, the importance of Ductile Iron Pipe in ensuring reliable, efficient, and long - lasting systems will only continue to increase.
| High-quality Ductile iron Pipe Parameters. |
| Specification |
K7 Wall Thickness/mm |
K8 Wall Thickness/mm |
K9 Wall Thickness/mm |
Theoretical Weight/Ton |
| Nominal Wall Thickness |
Minimum Wall Thickness |
Nominal Wall Thickness |
Minimum Wall Thickness |
Nominal Wall Thickness |
Minimum Wall Thickness |
| DN80 |
/ |
/ |
/ |
/ |
6 |
4.7 |
0.077 |
| DN100 |
4.2 |
2.9 |
4.8 |
3.5 |
6 |
4.7 |
0.095 |
| DN150 |
4.55 |
3.25 |
5.2 |
3.9 |
6 |
4.7 |
0.144 |
| DN200 |
4.9 |
3.6 |
6.5 |
4.3 |
6.3 |
4.8 |
0.194 |
| DN250 |
5.25 |
3.95 |
6 |
4.7 |
6.8 |
5.25 |
0.255 |
| DN300 |
5.6 |
4.3 |
6.4 |
4.8 |
7.2 |
5.6 |
0.323 |
| DN350 |
5.95 |
4.65 |
6.8 |
5.15 |
7.7 |
6.05 |
0.403 |
| DN400 |
6.3 |
4.6 |
7.2 |
5.5 |
8.1 |
6.4 |
0.482 |
| DN450 |
6.65 |
4.9 |
7.6 |
5.85 |
8.6 |
6.85 |
0.577 |
| DN500 |
7 |
5.2 |
8 |
6.2 |
9 |
7.2 |
0.669 |
| DN600 |
7.7 |
5.8 |
8.8 |
6.9 |
9.9 |
8 |
0.882 |
| DN700 |
8.4 |
6.4 |
9.4 |
7.6 |
10.8 |
8.8 |
1.123 |
| DN800 |
9.1 |
7 |
10.4 |
8.3 |
11.7 |
9.6 |
1.394 |
| DN900 |
/ |
/ |
11.2 |
9 |
12.6 |
10.4 |
1.691 |
| DN1000 |
/ |
/ |
12 |
9.7 |
13.5 |
11.2 |
2.017 |
| DN1200 |
/ |
/ |
13.6 |
11.1 |
15.3 |
12.8 |
2.758 |
| DN1400 |
/ |
/ |
15.2 |
12.5 |
17.1 |
14.4 |
3.669 |
| DN1500 |
/ |
/ |
16 |
13.2 |
18 |
15.2 |
4.175 |
| DN1600 |
/ |
/ |
16.8 |
13.9 |
18.9 |
16 |
4.668 |
| DN1800 |
/ |
/ |
18.4 |
15.3 |
20.7 |
17.6 |
5.803 |
| DN2000 |
/ |
/ |
20 |
16.7 |
22.5 |
19.2 |
7.043 |
| DN2200 |
/ |
/ |
21.6 |
18.1 |
24.3 |
20.8 |
8.332 |
| DN2400 |
/ |
/ |
23.2 |
20.3 |
26.1 |
22.4 |
9.822 |
| DN2600 |
/ |
/ |
24.8 |
20.9 |
27.9 |
24 |
11.392 |
| K7, K8, and K9 are all calculated based on the same theoretical weight. |
| Pressure - Bearing Performance Parameters of Ductile Iron Pipes |
| DN |
DE(mm) |
Pressure Rating |
Radial Rigidity
(KN/M²) |
Nominal Wall Thickness
(mm) |
PFA
MPA |
PAM
MPA |
PEA
MPA |
| DN80 |
98 |
C40 |
856 |
4.4 |
4.0 |
4.8 |
5.3 |
| DN100 |
118 |
C40 |
481 |
4.4 |
4.0 |
4.8 |
5.3 |
| DN125 |
144 |
C40 |
271 |
4.5 |
4.0 |
4.8 |
5.3 |
| DN150 |
170 |
C40 |
163 |
4.5 |
4.0 |
4.8 |
5.3 |
| DN200 |
222 |
C40 |
84 |
4.7 |
4.0 |
4.8 |
5.3 |
| DN250 |
176 |
C30 |
52 |
4.9b |
3.0 |
3.6 |
4.1 |
| DN300 |
326 |
C30 |
34 |
5.1 |
3.0 |
3.6 |
4.1 |
| DN350 |
378 |
C30 |
44 |
6.3b |
3.0 |
3.6 |
4.1 |
| DN400 |
429 |
C25 |
34 |
6.5b |
3.0 |
3.6 |
4.1 |
| DN450 |
480 |
C25 |
23 |
6.5b |
2.5 |
3.0 |
3.5 |
| DN500 |
532 |
C25 |
17 |
6.5 |
2.5 |
3.0 |
3.5 |
| DN600 |
635 |
C25 |
17 |
7.6b |
2.5 |
3.0 |
3.5 |
| DN700 |
738 |
C25 |
17 |
8.8b |
2.5 |
3.0 |
3.5 |
| DN800 |
842 |
C25 |
15 |
9.6 |
2.5 |
3.0 |
3.5 |
| DN900 |
945 |
C25 |
15 |
10.6 |
2.5 |
3.0 |
3.5 |
| DN1000 |
1048 |
C25 |
14 |
11.6 |
2.5 |
3.0 |
3.5 |
| DN1100 |
1152 |
C25 |
14 |
12.6 |
2.5 |
3.0 |
3.5 |
| DN1200 |
1255 |
C25 |
14 |
13.6 |
2.5 |
3.0 |
3.5 |
| DN1400 |
1462 |
C25 |
14 |
15.7 |
2.5 |
3.0 |
3.5 |
| DN1500 |
1565 |
C25 |
14 |
16.7 |
2.5 |
3.0 |
3.5 |
| DN1600 |
1668 |
C25 |
13 |
17.7 |
2.5 |
3.0 |
3.5 |
| DN1800 |
1785 |
C25 |
13 |
19.7 |
2.5 |
3.0 |
3.5 |
| DN2000 |
2082 |
C25 |
13 |
21.8 |
2.5 |
3.0 |
3.5 |
| DN2200 |
2288 |
C25 |
13 |
23.8 |
2.5 |
3.0 |
3.5 |
| DN2400 |
2495 |
C25 |
13 |
25.8 |
2.5 |
3.0 |
3.5 |
| DN2600 |
2702 |
C25 |
13 |
27.9 |
2.5 |
3.0 |
3.5 |
| DN2800 |
2908 |
C25 |
13 |
29.9 |
2.5 |
3.0 |
3.5 |
| DN3000 |
3115 |
C25 |
13 |
31.9 |
2.5 |
3.0 |
3.5 |
Q1: Are you trading company or manufacturer ?
A1: We are factory.
Q2:Can I go to your factory to visit?
A2:Of course, we welcome customers from all over the world to visit our factory.
Q3: How long is your delivery time?
A3: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to
quantity.
Q4:What is the advantage about your company?
A4:Our company has professional team and professional production line.
Q5: The logo and the color can be customized?
A5: Yes, we welcome you to sample custom
Q6: Any other good service your company can provide?
A6:Yes,we can provide good after-sale and fast delivery.
Q7:What product information do I need to provide?
A7:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.
Q8:Does the product have quality inspection before loading?
A8:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept the third party inspection absolutely.
Factory Introduction
We are a specialized ductile iron pipe manufacturing factory based in Shanxi, China. With a rich heritage of over 20 years in this industry, we have established ourselves as a reliable and experienced player in the global market.
Our ductile iron pipes have found their way to numerous countries across the globe. This wide - reaching export network is a testament to the trust that our international customers place in our products. The quality of our pipes has been recognized and praised by various sectors. We adhere to strict international quality standards, and our production facilities are equipped with state - of - the - art technology to ensure precision and consistency.
Each batch of our products undergoes rigorous quality control checks. We conduct comprehensive tests on factors such as pipe strength, pressure - bearing capacity, and corrosion resistance. This meticulous approach to quality control has earned us a reputation for delivering products that are not only durable but also perform optimally in diverse applications, whether it's for water supply, gas transmission, or other infrastructure projects.
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