• DUCTILE IRON PIPE DN1200 K8/C/K9 System 1
  • DUCTILE IRON PIPE DN1200 K8/C/K9 System 2
  • DUCTILE IRON PIPE DN1200 K8/C/K9 System 3
  • DUCTILE IRON PIPE DN1200 K8/C/K9 System 4
DUCTILE IRON PIPE DN1200 K8/C/K9

DUCTILE IRON PIPE DN1200 K8/C/K9

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Loading Port:
China Main Port
Payment Terms:
TT OR LC
Min Order Qty:
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Supply Capability:
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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: What are the different types of ductile iron pipe joints?
There are several different types of ductile iron pipe joints commonly used in various applications. These joints are designed to provide a strong and reliable connection between pipes, ensuring efficient fluid transfer and preventing leaks. Some of the most common types of ductile iron pipe joints include: 1. Push-on Joint: This type of joint is easy to install, as it does not require any special tools or equipment. The spigot end of one pipe is inserted into the bell end of another pipe, creating a tight seal. A rubber gasket is usually used to enhance the joint's resistance to leaks. 2. Mechanical Joint: Mechanical joints are commonly used in water and wastewater applications. They consist of a gland, a rubber gasket, and a follower gland. The pipe ends are pushed into the gland, and the follower gland is tightened, compressing the rubber gasket and creating a secure connection. 3. Restrained Joint: Restrained joints are specifically designed to withstand high internal and external forces such as water pressure or soil loadings. These joints typically use a rubber gasket and a restraining mechanism, such as a bolt or wedge, to prevent the pipe from moving or separating under stress. 4. Flanged Joint: Flanged joints are commonly used in large diameter pipes or applications requiring frequent disassembly. Each pipe end is equipped with a flange, which is then bolted together with the use of gaskets to create a strong connection. Flanged joints provide easy access for maintenance or repairs. 5. Welded Joint: Welded joints involve heating the pipe ends and fusing them together to form a permanent connection. This type of joint is commonly used in high-pressure applications where a reliable and leak-free connection is crucial. Welded joints require skilled labor and specialized equipment. It is important to choose the appropriate type of joint based on the specific application, pipe size, and operating conditions to ensure the integrity and longevity of the ductile iron pipe system. Consulting with a professional engineer or pipe manufacturer can help determine the most suitable joint for a particular project.
Q: Can ductile iron pipes be used for underground hydrocarbon pipelines?
Yes, ductile iron pipes can be used for underground hydrocarbon pipelines. Ductile iron is a strong and durable material that is commonly used in various applications including water and sewage systems, gas pipelines, and even hydrocarbon pipelines. Ductile iron pipes have excellent corrosion resistance properties and can withstand high pressures, making them suitable for transporting hydrocarbons underground. However, it is important to consider factors such as the specific composition of the hydrocarbons being transported and the environmental conditions of the pipeline route to ensure proper material selection and corrosion protection measures are implemented.
Q: What are the typical pressure surge protection measures for ductile iron pipe?
There are several typical pressure surge protection measures for ductile iron pipe that help ensure its integrity and longevity. These measures include: 1. Surge tanks: Surge tanks are commonly used to absorb pressure surges and minimize their impact on the ductile iron pipe. These tanks are typically installed at critical points in the pipeline system, such as at pump stations or near valves, to provide a reservoir for excess pressure. 2. Air release valves: Air release valves are essential components in ductile iron pipe systems that help release trapped air and prevent the formation of air pockets. These valves help maintain a stable pressure within the pipe and reduce the risk of pressure surges during operation or sudden changes in flow. 3. Pressure relief valves: Pressure relief valves are designed to protect ductile iron pipes by releasing excess pressure when it exceeds a predetermined threshold. These valves are typically installed at strategic locations in the pipeline system and are set to open when the pressure exceeds a safe limit, diverting the excess pressure to prevent damage to the pipe. 4. Surge suppressors: Surge suppressors are devices that are installed in ductile iron pipe systems to absorb and dissipate pressure surges. These devices act as shock absorbers, reducing the impact of pressure fluctuations and preventing damage to the pipe. Surge suppressors are particularly effective in situations where pressure surges are frequent or severe. 5. Pipe wall thickness: Another crucial measure for pressure surge protection in ductile iron pipe is ensuring an appropriate pipe wall thickness. By selecting a pipe with the correct wall thickness, engineers can ensure that the pipe can withstand the pressure surges it may encounter during operation. This helps prevent pipe failure or rupture due to excessive pressure. It is important to note that the specific pressure surge protection measures implemented for ductile iron pipe may vary depending on the specific application, pipe size, operating conditions, and regulatory requirements. Consulting with experts in pipeline engineering and design is crucial to determine the most suitable pressure surge protection measures for a particular ductile iron pipe system.
Q: What's the difference between grey cast iron pipe and ductile iron pipe?
Ductile iron pipe is a kind of casting alloy developed in the late 1940s. It is a kind of spheroidal graphite cast iron which is added into the molten iron by adding inoculant and inoculant. The mechanical properties of spherical graphite, so much more better than that of grey cast iron, cast iron, close to the steel, but the price is lower than steel, and still has many excellent properties of ordinary cast iron, such as good casting, shock absorption, machinability and low notch sensitivity etc.. Therefore, many important mechanical parts, such as crankshaft, connecting rod, gear, valve body and cylinder liner, can be made of ductile iron to save steel and reduce cost.
Q: Are ductile iron pipes resistant to chemicals?
Generally, ductile iron pipes exhibit resistance to chemicals. Ductile iron, a variety of cast iron, is fortified with small amounts of magnesium to enhance its strength and ductility. This alloying process effectively heightens its ability to withstand corrosion and chemical attack. Ductile iron pipes have found extensive use in multiple applications, such as water supply, wastewater treatment, and industrial piping systems, where they may encounter a range of chemicals. Nevertheless, it is crucial to acknowledge that the resistance of ductile iron pipes to chemicals can vary based on the specific type and concentration of the chemical in question. Thus, it is advisable to seek guidance from the manufacturer or a qualified engineer to ascertain the suitability of ductile iron pipes for a particular chemical application.
Q: Comparison of ductile iron pipe and spiral steel pipe
Can only be used for drainage pipe for comparison, other uses are not mentioned in the same breath.
Q: Are ductile iron pipes suitable for irrigation canal systems?
Absolutely, irrigation canal systems can indeed benefit from the use of ductile iron pipes. These pipes have gained recognition for their exceptional robustness and durability, rendering them exceptionally well-suited for withstanding the immense pressure and load demands of irrigation canal systems. They exhibit remarkable resistance to external forces, such as heavy machinery, and can effortlessly endure the stresses caused by soil movement and settlement. Moreover, ductile iron pipes boast remarkable resistance to corrosion and feature a flawlessly smooth inner surface. This smoothness significantly reduces friction and ensures a highly efficient flow of water. This particular quality is of utmost importance in irrigation systems, as it enables the effective distribution of water to crops, thereby guaranteeing their optimal growth and yield. Furthermore, ductile iron pipes boast an impressively long lifespan, often exceeding a century. This longevity makes them a truly cost-effective option for irrigation canal systems. Additionally, their minimal maintenance requirements further enhance their suitability for this particular application. Ultimately, ductile iron pipes possess all the essential characteristics necessary for irrigation canal systems, including strength, durability, corrosion resistance, and efficiency. As such, they represent a highly fitting choice for the purpose at hand.
Q: What are the different types of joints used in ductile iron pipes?
There are several types of joints commonly used in ductile iron pipes. These joints are designed to provide a secure and leak-proof connection between pipe sections. Here are some of the most commonly used joint types: 1. Push-on joint: This type of joint is easy to install and requires no special tools. It involves lubricating the gasket on one end of the pipe and pushing it into the socket of the adjoining pipe. The gasket creates a tight seal that prevents leakage. 2. Mechanical joint: This joint type consists of a gland and a follower gasket. The gland is placed over the spigot end of one pipe, and the follower gasket is inserted into the bell end of the adjoining pipe. The gland is then tightened with bolts and nuts, compressing the gasket to form a secure joint. 3. Restrained joint: This joint is used in applications where pipes need to be restrained against axial movement or pressure thrust. It typically involves a mechanical joint with additional components such as tie rods, thrust blocks, or restrained couplings to provide the necessary restraint. 4. Flanged joint: Flanged joints are commonly used in large diameter ductile iron pipes. They involve a flange on one pipe end and a mating flange on the other pipe end. The two flanges are bolted together, creating a strong and secure connection. Flanged joints allow for easy disassembly and reassembly if needed. 5. Welded joint: Welded joints are created by fusing the ends of two pipes together using heat and pressure. This type of joint provides a permanent and strong connection. Welded joints are commonly used in underground or buried applications where long-term durability is essential. It is important to note that the choice of joint type depends on factors such as pipe diameter, application, and project requirements. Consulting with a professional engineer or the manufacturer's guidelines is recommended to ensure the appropriate joint type is selected for ductile iron pipes.
Q: Can ductile iron pipes be used for submarine pipelines?
Yes, ductile iron pipes can be used for submarine pipelines. Ductile iron is a strong and durable material that can withstand the harsh conditions underwater, making it suitable for submarine applications. Additionally, its corrosion resistance properties make it a reliable choice for transporting fluids in marine environments.
Q: Can ductile iron pipe be used in corrosive environments?
Yes, ductile iron pipe can be used in corrosive environments. Ductile iron is known for its ability to resist corrosion and has been widely used in various applications where corrosion resistance is required. The corrosion resistance of ductile iron is due to its protective oxide layer, which forms naturally on its surface and acts as a barrier against corrosive elements. Additionally, ductile iron pipes can be coated with various protective coatings such as polyethylene or epoxy to enhance their resistance to corrosion. These coatings provide an extra layer of protection, making ductile iron pipes suitable for use in highly corrosive environments such as wastewater treatment plants, industrial plants, and marine applications. However, it is important to consider the specific corrosive elements present in the environment and consult with experts or follow industry standards to ensure the appropriate coating and maintenance practices are implemented for long-term performance and durability.

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