T Type Ductile Iron Pipe DN400 socket spigot pipe

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25

Supply Capability:: 30000 /month

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Specification:

1) The standard of pipe: ISO2531:1998, EN545:2006，K9 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: What is the minimum pipe diameter of cast iron pipe?: Cast iron pipe: cast pipe made of cast iron. Cast iron pipes are used for water supply, drainage and gas transmission lines. They include cast iron pipes and pipe fittings. Labor intensity is small.

Q: How are ductile iron pipes protected against internal scaling or buildup?: Various methods are utilized to protect ductile iron pipes against internal scaling or buildup. One widely employed technique involves applying a cement mortar lining to the inner surface of the pipes. This lining serves as a protective barrier, preventing the formation of scale or buildup and facilitating the smooth flow of water or other fluids. Moreover, an additional layer of polyethylene or other appropriate materials can be coated onto the pipes to provide an extra level of protection against scaling or buildup. This coating acts as a barrier between the water and the iron surface, thereby reducing the likelihood of corrosion or scale formation. Regular maintenance and cleaning play a crucial role in preventing internal scaling or buildup in ductile iron pipes. By flushing the pipes with high-pressure water or employing chemical treatments, any accumulated scale or debris can be effectively removed, ensuring the pipes remain clean and fully functional. Furthermore, proper water treatment is essential in minimizing the risk of scaling or buildup. By implementing suitable water treatment processes, such as pH adjustment or the use of corrosion inhibitors, the quality of the water can be maintained, preventing the formation of scale or buildup inside the pipes. In conclusion, various measures, including cement mortar lining, pipe coating, regular maintenance, cleaning, and proper water treatment, are employed to protect ductile iron pipes against internal scaling or buildup. These measures ensure the longevity and efficiency of the pipes, minimizing the chances of clogging or reduced flow capacity.

Q: What is the cost of ductile iron pipes compared to other pipe materials?: The cost of ductile iron pipes can vary depending on various factors such as size, length, and supplier. However, in general, ductile iron pipes tend to be more expensive compared to other pipe materials such as PVC (polyvinyl chloride) or steel. This is mainly due to the manufacturing process and the inherent qualities of ductile iron that make it a durable and reliable choice for various applications. Ductile iron pipes are known for their high tensile strength, resistance to corrosion, and durability, making them suitable for carrying potable water, wastewater, and other fluids under high pressure. The production process of ductile iron involves adding magnesium to cast iron, which results in improved strength and flexibility. This additional process, along with the quality of the material, contributes to the higher cost. On the other hand, pipes made from materials like PVC or steel can be less expensive. PVC pipes are lightweight, easy to install, and relatively inexpensive, making them a popular choice for low-pressure applications such as irrigation or drainage systems. Steel pipes, known for their strength and durability, are often used in high-pressure applications but come at a higher cost than PVC. Ultimately, the cost of ductile iron pipes may be higher initially, but their longer lifespan and reliability can offset the investment over time. Additionally, factors such as the specific project requirements, local regulations, and availability of materials can also influence the overall cost comparison between ductile iron pipes and other pipe materials.

Q: Can ductile iron pipe be used in areas with high groundwater levels?: Yes, ductile iron pipe can be used in areas with high groundwater levels. Ductile iron pipe is known for its durability and strength, making it suitable for use in various applications, including areas with high groundwater levels. Its corrosion resistance properties make it highly resistant to the corrosive effects of groundwater, ensuring long-term performance and reliability. Additionally, ductile iron pipe's joint flexibility allows it to withstand ground movement and settlement caused by fluctuating groundwater levels. Therefore, it is a suitable choice for areas with high groundwater levels, providing a reliable solution for water distribution systems and other underground applications.

Q: How to correctly measure ductile iron pipe: The outer diameter of the ball tube is measured around the outer edge of the pipe. The caliper is used to measure the inside diameter of the pipe. The length of the pipe is measured by a ruler or tape measure,

Q: What is the typical cost of maintenance for ductile iron pipes?: The typical cost of maintenance for ductile iron pipes can vary depending on various factors such as the length of the pipes, the condition of the surrounding soil, and the specific maintenance activities required. However, on average, the cost of maintenance for ductile iron pipes can range from a few hundred to a few thousand dollars per mile per year.

Q: How to distinguish flexible and rigid interfaces between cast iron pipe joints: Flexible connections can be kept watertight at any angle (lateral or vertical), and rigid, where the interface of a pipe is easy to crack if a slight earthquake is encountered

Q: How are ductile iron pipes protected against erosion caused by high-velocity flow?: Various methods and techniques are used to protect ductile iron pipes from erosion caused by high-velocity flow. One effective method involves applying protective coatings on the inner surface of the pipes. These coatings act as a barrier between the flowing water and the pipe material, minimizing the abrasive effects of the fast flow. Depending on the specific requirements of the application, coatings such as epoxy, polyurethane, or cement-mortar lining may be used. In addition, manufacturers often design the pipes with increased wall thickness in areas prone to erosion, such as bends or sections with high flow velocity. This additional thickness provides extra strength and resistance against erosion. Another technique used to safeguard ductile iron pipes from erosion is the implementation of flow control devices, such as flow deflectors or fittings that reduce velocity. These devices help redirect the flow and decrease its speed, thus minimizing the impact on the pipe walls. Regular maintenance and inspections are also vital to prevent erosion. By monitoring the condition of the pipes and identifying any early signs of erosion, appropriate measures can be taken to address the issue before it worsens. This may involve repairing or replacing damaged sections of the pipes and implementing erosion control measures like sediment filters or flow restrictors. Overall, a combination of protective coatings, design considerations, flow control devices, and proactive maintenance strategies are employed to ensure adequate protection of ductile iron pipes against erosion caused by high-velocity flow.

Q: Advantages and disadvantages of ductile iron pipes?: Ductile iron pipes are mainly heated and annealed by intermediate frequency furnace, and then made as lining cement. The cast iron pipe is not made of lining cement.

Q: Are ductile iron pipes suitable for water distribution networks?: Yes, ductile iron pipes are highly suitable for water distribution networks. They possess excellent strength, durability, and corrosion resistance, making them ideal for carrying and delivering water over long distances. Additionally, their flexibility allows for easy installation and adaptability to various terrains, ensuring reliable and efficient water distribution.

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