• T Type Ductile Iron Pipe DN1400 socket spigot pipe System 1
T Type Ductile Iron Pipe DN1400 socket spigot pipe

T Type Ductile Iron Pipe DN1400 socket spigot pipe

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
200
Supply Capability:
80000 /month

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Specification:

1) The standard of pipe: ISO2531:1998, EN545:2006K9 K8

2) Effective length: 6m/5.7m

3) Inner cement line: Portland cement lineas per ISO4179

4) Zinc coating: at least 130g/m2 as per ISO8179

5) Bitumen painting: at least 70μm as per ISO8179

6)With 102% quantity of NBR, SBR, or EPDM ring asper ISO4633

7) DN80-DN1200

8) Highstrength, lighter than grey iron, good corrosion resistance, no furring, smallflow resistance, easy fixing, long life tome about 100 yeas

9)Checked by automatic inspection equipment

10) 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

 

 

11) 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

12) T type mechanical joint

13) Packing: in bulk or container

PACKING: 1) Pipesare bundled together with the steel belt.

2) Wooden pieces are put between the pipes.


Q: Method for joining cast iron pipes
The connection between the pipe and the pipe adopts the form of socket type or flange disk interface. According to the function, it can be divided into two kinds: flexible interface and rigid interface. The flexible interface is sealed with rubber ring, which allows a certain degree of corner and displacement, so it has good seismic resistance and tightness. It is easy and quick to install than rigid interface. It has little labor intensity according to the casting method.
Q: How is ductile iron pipe manufactured?
Ductile iron pipe is manufactured through a process called centrifugal casting. In this process, molten iron is poured into a spinning mold, causing the iron to be distributed evenly along the inner surface of the mold. As the mold cools, the iron solidifies and forms the pipe's shape. This method ensures a strong and durable pipe with excellent tensile strength and resistance to corrosion.
Q: What is the expected external coating for ductile iron pipes?
The expected external coating for ductile iron pipes is typically a protective layer that is applied to the exterior surface of the pipe to prevent corrosion and extend its lifespan. Some common types of external coatings for ductile iron pipes include polyethylene, polyurethane, and epoxy coatings. These coatings provide a barrier between the pipe and the surrounding environment, preventing the pipe from coming into contact with corrosive substances such as soil, water, and chemicals. The choice of coating depends on factors such as the intended application, soil conditions, and the level of corrosion protection required. Overall, the expected external coating for ductile iron pipes is designed to ensure the longevity and durability of the pipes in various environmental conditions.
Q: Can ductile iron pipes be used for drainage systems in airports?
Yes, ductile iron pipes can be used for drainage systems in airports. Ductile iron pipes are known for their durability, strength, and resistance to corrosion, making them suitable for various applications, including drainage systems. They are capable of withstanding heavy loads, which is important in airports due to the constant movement of aircraft and vehicles. Ductile iron pipes are also flexible, allowing for easy installation and modification when necessary. Additionally, they have a long lifespan, reducing the need for frequent maintenance or replacement. Therefore, ductile iron pipes can be a reliable choice for drainage systems in airports, ensuring efficient water flow and preventing water accumulation, which is crucial for maintaining safe and operational airport facilities.
Q: Can ductile iron pipes be used for stormwater drainage?
Yes, ductile iron pipes can be used for stormwater drainage. Ductile iron pipes are known for their strength and durability, making them suitable for various applications, including stormwater drainage systems. These pipes have high tensile strength and can withstand heavy loads and pressure, making them ideal for carrying large volumes of stormwater. Additionally, ductile iron pipes have a smooth interior surface that reduces friction and allows for efficient flow of water, minimizing the risk of blockages and clogging. With proper installation and maintenance, ductile iron pipes can provide a reliable and long-lasting solution for stormwater drainage.
Q: Are ductile iron pipes resistant to chemicals or solvents?
Yes, ductile iron pipes are generally resistant to chemicals and solvents. Their strong and durable composition makes them suitable for carrying various substances, including acids, alkalis, and other corrosive materials, without significant degradation or damage. However, it is always recommended to consult specific chemical resistance charts or manufacturers' guidelines to ensure compatibility with specific chemicals or solvents.
Q: Can ductile iron pipe be used for marine and offshore applications?
Yes, ductile iron pipe can be used for marine and offshore applications. Ductile iron is known for its high strength and durability, making it suitable for various environments, including those with exposure to saltwater and harsh conditions. It is commonly used in marine and offshore projects due to its resistance to corrosion, impact, and pressure. Additionally, ductile iron pipes have proven to be cost-effective and reliable for transporting fluids in these challenging environments.
Q: The difference between ductile iron pipe and steel pipe used in pipe jacking
The casting processes of nodular cast iron pipes are continuous casting, hot die casting and water-cooled centrifugal casting, in which water cooling is the most advanced process in the world,
Q: How are ductile iron pipes protected against stray electrical currents?
To safeguard water and sewer systems, ductile iron pipes are shielded from stray electrical currents through a technique called cathodic protection. This process entails the application of a low-voltage direct current (DC) to the pipes, generating a defensive electrical field around them. To achieve cathodic protection, sacrificial anodes or impressed current systems are installed near the ductile iron pipes. Sacrificial anodes, composed of a more electrically active metal like zinc or magnesium, are connected to the pipes and act as the electrical current source. Over time, these anodes corrode, sacrificing themselves to shield the pipes from corrosion caused by stray electrical currents. However, impressed current systems utilize an external power source to supply the protective electrical current. Rectifiers are employed to convert alternating current (AC) to direct current (DC), which is then administered to the pipes through anodes. This approach provides greater control over the amount of current applied, ensuring optimal protection. In both scenarios, the electrical current flowing through the sacrificial anodes or impressed current systems establishes a protective barrier around the ductile iron pipes. This barrier impedes the flow of stray electrical currents through the pipes, thus diminishing the risk of corrosion and prolonging the infrastructure's lifespan. Regular monitoring and maintenance of the cathodic protection system are crucial to uphold its efficacy. This involves inspecting the anodes, assessing the levels of electrical current, and making any necessary adjustments or replacements to maintain the desired level of protection. To summarize, cathodic protection is a dependable and widely utilized method for safeguarding ductile iron pipes against stray electrical currents. By preserving the integrity and longevity of water and sewer systems, it plays a vital role in ensuring their functionality.
Q: Can ductile iron pipe be used for stormwater systems?
Yes, ductile iron pipe can be used for stormwater systems. Ductile iron pipe is a strong and durable material that is commonly used for various applications, including stormwater systems. It has excellent corrosion resistance, making it suitable for handling stormwater, which often contains debris and chemicals. Ductile iron pipe also has high tensile strength and can withstand heavy loads and pressures, making it a reliable choice for stormwater systems that may experience significant flow rates and occasional surges. Additionally, ductile iron pipe is available in various sizes and configurations, allowing for flexibility and adaptability in designing stormwater systems.

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