DUCTILE IRON PIPE DN800

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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High Tensile Steel Rebar ASTM BS4449 Rebar Steel

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: How does ductile iron pipe perform in areas with high soil settlement?: Ductile iron pipes perform well in areas with high soil settlement due to their inherent strength and flexibility. Their ability to withstand soil movement and settlement helps prevent pipe damage or failure. Additionally, ductile iron pipes are designed with joints that allow for some movement, further reducing the risk of cracks or breaks. Overall, ductile iron pipes are a reliable choice for areas prone to high soil settlement.

Q: What are the typical pressure surge protection measures for ductile iron pipe?: To ensure the integrity and longevity of ductile iron pipe, various measures are commonly employed to protect against pressure surges. These measures encompass the following: 1. Surge tanks serve as effective tools for absorbing and mitigating the impact of pressure surges on ductile iron pipe. These tanks are typically positioned strategically at critical points in the pipeline system, such as near valves or pump stations, providing a reservoir to contain excess pressure. 2. Air release valves are indispensable components within ductile iron pipe systems, serving the purpose of releasing trapped air and preventing the formation of air pockets. These valves maintain a stable pressure within the pipe, reducing the risk of pressure surges during operation or abrupt changes in flow. 3. Pressure relief valves are designed to safeguard ductile iron pipes by releasing excessive pressure when it surpasses a predetermined threshold. These valves are usually installed at strategic locations in the pipeline system and programmed to open when the pressure exceeds a safe limit, diverting the excess pressure to safeguard the pipe from damage. 4. Surge suppressors are devices installed in ductile iron pipe systems to absorb and dissipate pressure surges. These devices function as shock absorbers, lessening the impact of pressure fluctuations and protecting the pipe from harm. Surge suppressors are particularly effective in situations where pressure surges occur frequently or are severe. 5. Ensuring an appropriate pipe wall thickness is another critical measure for pressure surge protection in ductile iron pipe. By selecting a pipe with the correct wall thickness, engineers can guarantee the pipe's ability to withstand the pressure surges it may encounter during operation. This measure helps prevent pipe failure or rupture caused by excessive pressure. It is essential to note that the specific pressure surge protection measures employed for ductile iron pipe may vary depending on factors such as the application, pipe size, operating conditions, and regulatory requirements. Consulting experts in pipeline engineering and design is imperative to determine the most suitable pressure surge protection measures for a particular ductile iron pipe system.

Q: How do ductile iron pipes handle water velocity?: Ductile iron pipes are capable of handling high water velocities due to their inherent strength and durability. The material's flexibility enables it to withstand the force and pressure created by fast-moving water, making it suitable for applications where high water velocity is a concern.

Q: Are ductile iron pipes suitable for use in desalination plants?: Yes, ductile iron pipes are suitable for use in desalination plants. Ductile iron is known for its high strength and durability, making it capable of withstanding the harsh conditions and corrosive nature of desalination processes. Additionally, ductile iron pipes have excellent resistance to internal and external corrosion, making them a reliable choice for transporting the high-pressure brine and freshwater in desalination plants.

Q: What are the different methods for tapping ductile iron pipe?: Tapping ductile iron pipe can be done in several different ways, depending on the project's specific needs. Some commonly used methods include: 1. Mechanical Tapping: To create a hole in the ductile iron pipe, a mechanical tapping machine is employed. Equipped with a rotating cutting tool, the machine easily cuts through the pipe wall, resulting in a clean hole. This method is ideal for smaller diameter pipes and is both quick and efficient. 2. Hot Tapping: While the ductile iron pipe is still in service and under pressure, hot tapping involves creating a hole. To ensure safety and maintain the pipe's integrity, specialized equipment and expertise are required. Hot tapping is commonly used when shutting down the pipeline for maintenance or repair work is impractical or not feasible. 3. Electrofusion Tapping: For larger diameter pipes, electrofusion tapping is a suitable method. It involves using an electrofusion saddle and fitting to create a branch connection on the ductile iron pipe. By welding a fitting onto the pipe with an electrofusion machine, a secure and leak-proof connection is achieved. This method can be used for both water and gas applications. 4. Saddle Tapping: A cost-effective and simple method for smaller diameter pipes is saddle tapping. It involves attaching a saddle or clamp onto the ductile iron pipe and drilling a hole through it. The saddle is then equipped with a threaded outlet to connect a branch line. 5. Split Sleeve Tapping: For larger diameter pipes, split sleeve tapping is commonly used. This method requires cutting a section out of the ductile iron pipe and installing a split sleeve over the cut. By bolting the split sleeve together, a secure and watertight connection is established. It is suitable for both water and gas applications. When selecting the tapping method, it is crucial to consider factors like pipe size, pressure rating, required branch connection, and project-specific requirements. Consulting a professional engineer or tapping specialist is highly recommended to ensure the correct method is used for tapping ductile iron pipe.

Q: Are ductile iron pipes suitable for use in hydropower projects?: Indeed, ductile iron pipes prove to be a suitable option for implementation in hydropower projects. Possessing a remarkable tensile strength and corrosion resistance, these pipes emerge as the ideal choice for applications in hydropower projects where water flow and pressure play a significant role. Demonstrating the ability to endure high pressure and boasting durability, these pipes guarantee long-term reliability and safety within hydropower systems. Furthermore, when compared to alternative materials such as steel, ductile iron pipes present a cost-effective solution, rendering them a favored selection for hydropower projects. In summary, ductile iron pipes possess the essential characteristics and performance qualities necessary to meet the rigorous conditions encountered in hydropower projects.

Q: How are ductile iron pipes connected or jointed together?: Ductile iron pipes are typically connected or jointed together using various methods such as flanged joints, push-on joints, mechanical joints, or restrained joints. These methods ensure a secure and leak-free connection between the pipes, providing a reliable and durable pipeline system.

Q: What is a slide in type T flexible interface?: As long as the socket is inserted into the slot, the installation is quick, labor-saving and airtight, and what is good is also good

Q: How do ductile iron pipes perform in high-traffic areas?: Ductile iron pipes perform well in high-traffic areas due to their durability and strength. They have the ability to withstand heavy loads and traffic loads without experiencing deformation or damage. Additionally, their corrosion resistance properties make them suitable for prolonged exposure to moisture and harsh environmental conditions. Overall, ductile iron pipes are a reliable choice for high-traffic areas.

Q: How many casting methods are there in ductile iron casting? A 60*6 discus can not have sand holes. Its surface is smooth. What process can be used to make it?: This is such a small piece, do not worry about shrinkage, mainly pay attention to sand hole and slag. With Disa wet molding line, a box of more pieces, suitable for mass production, defects will be relatively less. By using other methods (resin sand coated sand, etc.) can also be the main attention, don't type it, then the level of liquidity and relatively ductile iron, gray iron poor, sand and gas can not go up, sand holes or pores will spread in the discus plane.

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