Ductile iron pipes, especially those of K9 grade with a diameter of 1400mm, have emerged as a highly reliable and durable choice in the field of pipeline systems. This type of pipe is renowned for its exceptional characteristics that make it stand out among various piping materials.
Strength and Durability
One of the most prominent features of K9 grade ductile iron pipes with a 1400mm diameter is their remarkable strength. The manufacturing process of ductile iron involves adding magnesium or cerium to molten iron, which transforms the graphite in the iron from a flake - like structure (as in gray cast iron) to a spherical or nodular form. This unique microstructure significantly enhances the mechanical properties of the material.
The spherical graphite nodules act as stress - relieving points within the iron matrix. As a result, ductile iron pipes can withstand high internal pressures. For a 1400mm diameter pipe, it can handle substantial water or fluid flow rates without the risk of bursting. In water supply systems, where pressure fluctuations are common, these pipes prove their mettle. They can endure the surges in pressure that may occur during start - up and shut - down operations of pumps, or due to sudden changes in water demand.
In terms of durability, ductile iron pipes are highly resistant to corrosion. The outer surface of the pipe can be further protected by a variety of coatings. For instance, a zinc - based coating is often applied, which provides a sacrificial layer. Zinc is more reactive than iron, so when exposed to a corrosive environment, the zinc corrodes first, protecting the underlying iron. Additionally, a layer of bituminous or polymeric coating is usually added on top of the zinc coating. This combination not only guards against corrosion from soil moisture, which is a common concern for buried pipelines, but also against chemical substances present in the transported fluids. In sewage systems, where the wastewater may contain various acidic or alkaline substances, the corrosion - resistant properties of K9 grade ductile iron pipes ensure a long - lasting service life.
Flexibility and Adaptability
Despite their large diameter of 1400mm, K9 grade ductile iron pipes offer a certain degree of flexibility. They can adapt to minor ground movements without cracking. In areas prone to seismic activities or where the soil is subject to settlement, this flexibility is crucial. The pipes can bend slightly with the movement of the ground, maintaining their integrity and preventing leaks. This is in contrast to some rigid piping materials that may break under such conditions.
Moreover, the joints of ductile iron pipes are designed to be highly reliable. Rubber - gasketed joints are commonly used, which provide a watertight seal. These joints allow for easy installation and also accommodate small angular deflections between pipe sections. During the installation of a 1400mm diameter pipeline, the joints can be quickly and securely assembled, reducing the overall installation time. This is an advantage in large - scale projects where time is of the essence.
Smooth Inner Surface and Flow Efficiency
The inner surface of K9 grade ductile iron pipes is relatively smooth. This smoothness is beneficial for the flow of fluids. In water distribution systems, a smooth inner surface reduces friction losses. As a result, for a given pump power, a 1400mm diameter ductile iron pipe can deliver a higher volume of water compared to pipes with a rougher inner surface. This not only improves the efficiency of the water supply network but also helps in reducing energy consumption. In large - scale industrial applications where a continuous and efficient flow of fluids is required, such as in power plants or chemical industries, the smooth inner surface of ductile iron pipes ensures optimal performance.
Long - Term Cost - Effectiveness
Although the initial cost of K9 grade ductile iron pipes with a 1400mm diameter may seem relatively high compared to some other piping materials, their long - term cost - effectiveness cannot be overstated. Their durability means fewer replacements and repairs over time. In a water supply system that is expected to last for several decades, the use of ductile iron pipes can significantly reduce maintenance costs. The reduced energy consumption due to their smooth inner surface also contributes to long - term savings. Additionally, the reliability of these pipes ensures uninterrupted service, minimizing the economic losses associated with system failures, such as water shortages in urban areas or production disruptions in industrial facilities.
In conclusion, K9 grade ductile iron pipes with a diameter of 1400mm are a superior choice for a wide range of applications. Their strength, durability, flexibility, flow efficiency, and long - term cost - effectiveness make them an ideal option for water supply, sewage, and industrial fluid transportation systems. With proper installation and maintenance, these pipes can provide reliable service for many years, meeting the demands of modern infrastructure projects.
| 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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