Ductile iron pipes have emerged as a cornerstone in the infrastructure landscape, facilitating the efficient and reliable conveyance of fluids like water, gas, and sewage. Our company takes pride in its prowess to produce ductile iron pipes that seamlessly adapt to a wide array of standards and an extensive range of (diameter sizes), catering to the multifaceted demands of diverse projects.
I. Embracing a Multitude of Standards
- Domestic Standard Mastery
- We are well - versed in the nuances of domestic standards, with a particular focus on GB/T 13295. This standard is a comprehensive guide that dictates every aspect of ductile iron pipe production. For instance, it strictly regulates the chemical composition of the base iron. Carbon, a fundamental element, must be maintained within a precise range. A proper carbon level is essential as it directly influences the pipe's mechanical properties, endowing it with the right balance of strength and flexibility. Silicon, another key component, plays a dual role. It enhances the fluidity of the molten iron during the casting process, ensuring a smooth and uniform pipe structure. Additionally, it contributes significantly to the pipe's final mechanical characteristics, such as its resistance to deformation under pressure.
- Beyond GB/T 13295, we are also proficient in adhering to other domestic standards. These standards cover a broad spectrum of requirements, from dimensional accuracy to surface finish quality. Some standards may place a greater emphasis on corrosion resistance for applications in harsh environments, while others might prioritize high - pressure tolerance for gas transmission lines. Our team of experts is well - equipped to interpret and implement these standards, ensuring that our products meet and exceed the expectations of domestic projects.
- International Standard Compliance
- Our manufacturing capabilities extend far beyond national boundaries. We are fully capable of producing pipes that meet international standards, such as ISO 2531. This globally recognized standard is highly regarded in the international market for its strict guidelines on product quality. By following ISO 2531, our pipes can be seamlessly integrated into infrastructure projects worldwide. The standard meticulously details every step of the production process, from raw material procurement to the final product inspection. We ensure that our pipes meet the international benchmarks for mechanical properties, including tensile strength, yield strength, and elongation. This not only guarantees the pipes' performance but also enhances their marketability in the global arena.
- In addition, we are familiar with ASTM standards, which are widely used in North America and other regions. ASTM (American Society for Testing and Materials) has a comprehensive set of standards related to ductile iron pipes. These standards are highly respected for their rigor and precision. For example, ASTM A536 defines the chemical and mechanical properties of ductile iron, and we make it a point to adhere to these guidelines meticulously. By conforming to ASTM standards, we can provide pipes that meet the specific requirements of projects in these areas, whether it's a large - scale water supply project in the United States or a gas pipeline installation in Canada.
II. Catering to a Wide Range of Diameter Sizes
- Small - Diameter Pipes (DN40 - DN200)
- Our small - diameter ductile iron pipes, spanning from DN40 to DN200, are tailored for a variety of applications. In residential water supply systems, these pipes serve as the vital link between the main water line and individual households. Their compact size allows for easy installation in tight spaces, such as within the walls or under the floors of houses. Despite their small diameter, they are engineered to withstand the internal pressure of water supply, ensuring a consistent and reliable water flow. Moreover, in small - scale irrigation systems, these pipes play a crucial role in distributing water to plants. Their corrosion - resistant properties make them suitable for outdoor use, where they may be exposed to moisture, soil, and various environmental elements.
- Medium - Diameter Pipes (DN250 - DN600)
- The medium - diameter range, from DN250 to DN600, finds extensive use in commercial and industrial settings. In commercial buildings, these pipes are the backbone of the water supply and drainage systems. Their larger diameter enables them to handle higher water flow rates, meeting the demands of multiple floors and a variety of facilities within the building, such as kitchens, bathrooms, and cooling systems. In industrial applications, such as factories and manufacturing plants, these pipes are used to transport process fluids. For example, in a chemical plant, they may be used to carry corrosive chemicals, while in a food processing plant, they can be used to transport water for cleaning equipment or to convey food ingredients during the production process. The pipes' ability to withstand different types of fluids and pressures makes them a reliable choice for these diverse applications.
- Large - Diameter Pipes (DN700 - DN3000)
- Our large - diameter ductile iron pipes, with diameters ranging from DN700 to DN3000, are the workhorses of large - scale infrastructure projects. In urban water supply systems, these pipes function as the main trunk lines, transporting vast volumes of water from treatment plants to different parts of the city. Their large cross - sectional area allows for high - volume flow, which not only ensures an adequate water supply but also helps to reduce the energy consumption associated with pumping water. In gas transmission networks, large - diameter pipes are used to transport natural gas over long distances. Their high - strength and gas - tight properties, as required by relevant standards, are essential for the safe and efficient transmission of gas. In wastewater treatment plants, these pipes are used to collect and transport sewage from collection points to the treatment facilities. Their smooth inner surface, as per the standards, helps to prevent blockages and ensures the efficient flow of wastewater.
III. Precision - Oriented Manufacturing Process
- Raw Material Sourcing and Preparation
- Irrespective of the standard or diameter size, we commence the production process with the meticulous selection of high - quality raw materials. The iron is sourced from trusted suppliers and undergoes rigorous testing to ensure it meets the chemical composition requirements of the relevant standard. Alloying elements are added in precise quantities to achieve the desired mechanical properties. For example, to enhance the pipe's strength and durability, elements like manganese and nickel may be added in a carefully controlled manner. The raw materials are then prepared for the casting process, with strict quality control measures in place to guarantee their uniformity and purity.
- Advanced Casting Techniques
- We employ state - of - the - art casting techniques to produce pipes of consistent quality. For small - diameter pipes, centrifugal casting is often the method of choice. This technique involves spinning a mold while pouring in the molten iron, resulting in a uniform wall thickness. This is crucial as any variation in wall thickness can compromise the pipe's integrity and performance. For medium and large - diameter pipes, vertical or horizontal continuous casting methods are utilized. These methods allow for the production of long - length pipes with high precision. During the casting process, the temperature, speed, and flow rate of the molten iron are carefully monitored and adjusted to ensure the proper solidification of the metal and the formation of a defect - free pipe.
- Heat Treatment for Optimal Properties
- After casting, the pipes undergo a crucial heat treatment process. This step is essential for improving the ductility and strength of the pipe. The heat treatment cycle is customized according to the specific standard and diameter of the pipe. For pipes with higher strength requirements, a more intensive heat treatment may be applied. The heat treatment process helps to refine the microstructure of the iron, making the pipe more resistant to cracking, deformation, and fatigue. It also enhances the pipe's ability to withstand the mechanical and environmental stresses it will encounter during its service life.
- Stringent Inspection and Quality Control
- Rigorous inspection procedures are implemented at every stage of production to ensure the highest quality standards are met. Non - destructive testing methods, such as ultrasonic testing and radiographic testing, are used to detect any internal defects in the pipes. Surface inspection is also carried out to ensure that the pipe has a smooth surface, free from cracks, pits, or other imperfections. We have a dedicated quality control team that strictly adheres to the inspection criteria set by the relevant standards. Any pipe that fails to meet the quality requirements is rejected, and the production process is adjusted to rectify the issue. This ensures that only top - quality products are delivered to our customers.
IV. Applications Across Diverse Industries
- Water Supply Sector
- Our ductile iron pipes, available in different standards and diameters, are extensively used in the water supply industry. Small - diameter pipes are responsible for connecting individual households to the main water network, while medium - diameter pipes are used in commercial and small - industrial water supply systems. Large - diameter pipes, on the other hand, form the main transmission lines that transport water from treatment plants to urban areas. The pipes' corrosion - resistant properties, as per the relevant standards, ensure a long - lasting and clean water supply. They can withstand the internal pressure of water distribution systems, providing a reliable water source for communities.
- Gas Industry
- In the gas industry, our pipes play a vital role in both natural gas transmission and distribution. Pipes manufactured to meet the high - pressure requirements of gas transmission standards are used for long - distance gas pipelines. Their ability to maintain gas tightness, as mandated by the standards, is crucial for safe and efficient gas transportation. Smaller - diameter pipes are used for local gas distribution to residential and commercial customers. The pipes' compatibility with gas and their resistance to leakage make them an ideal choice for this industry.
- Wastewater Treatment Industry
- For the wastewater treatment industry, our pipes are designed to transport sewage from collection points to treatment plants. The smooth inner surface of the pipes, as required by relevant standards, helps to prevent blockages and ensure the efficient flow of wastewater. The corrosion - resistant properties of the pipes are also of utmost importance as sewage can contain various chemicals and biological agents that could cause corrosion over time. Our pipes are engineered to withstand these harsh conditions, ensuring the proper functioning of wastewater treatment systems.
In summary, our company's proficiency in producing ductile iron pipes that conform to different standards and diverse diameter sizes positions us as a reliable and versatile partner for a wide range of infrastructure projects. Whether it's a small - scale renovation project or a large - scale urban development initiative, we are committed to delivering high - quality ductile iron pipes that meet the exacting requirements of each application.
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.



