K Type Ductile Iron Pipe DN800 socket spigot pipe

K Type Ductile Iron Pipe DN800 socket spigot pipe

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 200 m.t

Supply Capability:: 30000 m.t/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: Are ductile iron pipes suitable for installation in areas with high groundwater table?: Yes, ductile iron pipes are suitable for installation in areas with a high groundwater table. Ductile iron pipes are known for their high strength and durability, making them ideal for underground installations. They can withstand the external pressure from the groundwater without deforming or collapsing. Additionally, ductile iron pipes have excellent corrosion resistance, which helps protect them from the potentially corrosive effects of groundwater. Therefore, they can be safely used in areas with a high groundwater table, providing reliable and long-lasting water supply infrastructure.

Q: Can ductile iron pipe be used for mining applications?: Yes, ductile iron pipe can be used for mining applications. It is commonly used in mining operations due to its high strength, durability, and resistance to corrosion. Ductile iron pipe can withstand the harsh conditions and demanding requirements of mining, making it a suitable choice for transporting water, slurry, and other substances in mining operations.

Q: How are ductile iron pipes protected against external soil loads?: Ductile iron pipes are protected against external soil loads through several methods. One of the primary methods is the use of a protective coating on the exterior surface of the pipe. This coating acts as a barrier between the iron pipe and the surrounding soil, preventing direct contact and reducing the risk of corrosion. Another method of protection is the use of trench backfill materials. The soil used for backfilling is carefully selected and compacted to provide adequate support and load distribution for the pipe. This helps to minimize the stress and pressure exerted on the pipe by the surrounding soil. Additionally, the design and installation of the pipe system play a crucial role in protecting ductile iron pipes against external soil loads. The pipes are typically laid in a properly engineered trench, which includes appropriate bedding and backfilling techniques to ensure stability and minimize the potential for damage. Furthermore, the use of proper pipe jointing techniques is essential for protecting against external soil loads. Joints are often designed to be flexible, allowing for some movement and accommodating external loads. This helps to distribute the stress along the length of the pipe and prevents concentrated pressure points that could lead to failure. Overall, a combination of protective coatings, appropriate backfill materials, proper installation techniques, and joint design contribute to the effective protection of ductile iron pipes against external soil loads. This ensures the longevity and reliability of the pipe system, even in challenging soil conditions.

Q: How are ductile iron pipes repaired in case of damage?: Due to their high durability and strength, ductile iron pipes are commonly utilized in various applications. However, like any other materials, these pipes can sustain damage over time due to external influences or internal corrosion. In such instances, there exist several techniques available for repairing ductile iron pipes. One prevalent method is the trenchless repair technique, which allows for the restoration of the damaged section without the need for extensive excavation. This method typically employs specialized equipment to access and repair the affected area. Its advantages lie in minimizing disruption to the surrounding environment and reducing excavation costs. Another approach for repairing ductile iron pipes involves the application of epoxy lining. This process entails the use of epoxy resin to seal any cracks or leaks on the interior surface of the pipe. Epoxy lining is a cost-efficient and effective solution as it provides long-lasting repairs and enhances the overall condition of the pipe. In cases where the damage is severe or extensive, it may be necessary to replace the damaged section of the ductile iron pipe. This typically involves removing the compromised portion and installing a new pipe section. The replacement process may require excavation and can be more time-consuming and costly compared to other repair methods. Nonetheless, it guarantees a comprehensive and permanent solution for the damaged pipe. It is essential to note that the choice of repair method for ductile iron pipes depends on factors such as the extent of the damage and accessibility. Professional assessment and inspection play a crucial role in determining the most suitable repair technique. Consulting experienced pipeline repair specialists or civil engineers is highly recommended to ensure the most effective and durable repair solution for ductile iron pipes.

Q: What are the different methods for anchoring ductile iron pipe?: There are several methods for anchoring ductile iron pipe, including thrust blocking, concrete encasement, pipe restraints, and thrust collars.

Q: Is the spigot and socket connection of the ductile iron tube reversed?: The tube is heated, in forming model, and the tube is arranged in the pipe drawing die; under the pressure of the tube is radially compressed, in radial compression in the direction of flow and the formation of metal pipe to pipe in the drawing die.

Q: Are ductile iron pipes suitable for underground river crossings?: Yes, ductile iron pipes are suitable for underground river crossings. Ductile iron is a strong and durable material that can withstand the external pressures and loads experienced during such crossings. It has excellent tensile strength, impact resistance, and durability, making it ideal for underground applications where the pipes may be subjected to high water pressure, ground movement, or other environmental factors. Additionally, ductile iron pipes have a long service life and are resistant to corrosion, which is important when dealing with water crossings. Their ability to withstand these conditions makes them a reliable choice for underground river crossings.

Q: Are there any special considerations for installing ductile iron pipe in rocky soils?: Installing ductile iron pipe in rocky soils presents various special considerations. First and foremost, the excavation process can be a challenge due to the presence of rocks. Trenching becomes more difficult and time-consuming, requiring specialized equipment to break through the rocks and create a suitable trench for the pipe installation. Furthermore, the rocky soil can cause abrasion and damage to the outer surface of the ductile iron pipe during installation. This poses a potential risk to the integrity of the pipe, leading to leaks or breakages in the future. To mitigate this risk, it is advisable to utilize protective measures such as rock shields or padding around the pipe, minimizing direct contact with the rocks. In addition, the presence of rocks can impact the backfilling process. Proper backfilling is essential to provide support and stability to the installed pipe. However, rocks can hinder the proper compaction of the backfill material, resulting in uneven support and potential movement of the pipe. Therefore, it is crucial to carefully select and place the backfill material, ensuring it is free from larger rocks and adequately compacted to provide sufficient support. Moreover, the rocky soil can also affect the installation of fittings and joints. The hardness of the rocks can make it challenging to align and connect the pipe with fittings or create secure joints. Therefore, extra care must be taken during the installation process to ensure proper alignment and secure connections, preventing leaks and ensuring the long-term functionality of the ductile iron pipe system. In conclusion, installing ductile iron pipe in rocky soils demands special attention to overcome challenges related to excavation, abrasion, backfilling, and fitting installation. By taking these factors into account and implementing appropriate measures, the installation process can be carried out successfully, allowing the pipe system to operate effectively even in rocky soil conditions.

Q: How are ductile iron pipes protected during transportation and storage?: Various methods are employed to protect ductile iron pipes during transportation and storage, ensuring their integrity and preventing potential damage. The first step involves applying a protective layer, such as epoxy or zinc, to act as a barrier against corrosion. This coating effectively safeguards the pipes from moisture and other corrosive elements during transit and storage. To further safeguard the pipes, they are often bundled together and secured with straps or bands, preventing any movement or shifting that could cause mechanical damage. This bundling not only ensures the pipes remain intact but also facilitates easier handling and transportation in an organized manner. During transportation, the pipes are typically loaded onto pallets or placed in crates, providing additional protection and stability. This minimizes the risk of accidental impact or rough handling that may result in cracks or fractures. Proper labeling and marking of the pipes is crucial to ensure appropriate handling. This includes displaying handling instructions, weight limits, and pipe specifications, preventing mishandling and damage during transportation. Equally important are the storage conditions for maintaining the integrity of ductile iron pipes. They should be stored in a clean, dry, and well-ventilated area, protecting them from moisture and humidity. Direct sunlight and extreme temperatures should be avoided to prevent any potential degradation of the protective coating. In conclusion, protecting ductile iron pipes during transportation and storage involves the application of protective coatings, bundling and securing, suitable packaging materials, proper handling and labeling, and storage in appropriate conditions. These measures guarantee the pipes' quality and structural integrity, ensuring they arrive at their destination in optimal condition.

Q: Can ductile iron pipe be used for marine applications?: Yes, ductile iron pipe can be used for marine applications. Ductile iron is a type of cast iron that possesses high strength, durability, and resistance to corrosion. These properties make it suitable for various marine environments, including saltwater applications. Ductile iron pipes are commonly used for marine applications such as seawater intake and outfall systems, offshore oil and gas platforms, submarine pipelines, and marine dredging projects. The corrosion-resistant nature of ductile iron helps protect against the harsh conditions found in marine environments, such as corrosive saltwater, tidal currents, and marine organisms. Additionally, ductile iron pipes are known for their excellent mechanical properties, including high tensile strength and impact resistance, which further enhance their suitability for marine applications. Overall, ductile iron pipe is a reliable and cost-effective choice for various marine applications.

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