ductile iron pipe DN500 K8 SOCKET SPIGOT PIPES

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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: Can ductile iron pipe be used for sewer and wastewater systems?: Yes, ductile iron pipe can be used for sewer and wastewater systems. Ductile iron is a strong and durable material that can withstand the harsh conditions of sewage and wastewater transport. It has excellent corrosion resistance and can handle high-pressure environments, making it a suitable choice for these applications.

Q: Are ductile iron pipes suitable for pressure reducing valve stations?: Ductile iron pipes prove to be suitable for pressure reducing valve stations due to their strength and durability, making them an ideal choice for applications involving high pressure. Pressure reducing valve stations, which regulate and decrease the pressure of a fluid or gas in a pipeline system, can rely on ductile iron pipes to handle the exerted pressure, ensuring an efficient and reliable operation. Moreover, the excellent resistance to corrosion exhibited by ductile iron pipes is crucial in upholding the integrity of the pipeline system, thereby preventing leaks or failures. Overall, the necessary strength, durability, and corrosion resistance required for pressure reducing valve stations are provided by ductile iron pipes.

Q: Can ductile iron pipes be used for water tunnel crossings?: Indeed, water tunnel crossings can utilize ductile iron pipes. Renowned for their robustness, longevity, and immunity to corrosion, ductile iron pipes prove to be an ideal option for diverse purposes, including water tunnel crossings. Their ability to endure immense pressure, external burdens, and soil movements, commonly experienced in tunnel crossings, is commendable. Moreover, ductile iron pipes boast an extended lifespan and necessitate minimal upkeep, rendering them an economical resolution for water tunnel crossings.

Q: How can the ductile iron pipe depress the elbow so as to prevent it from being opened?: Elbow materials are cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, nonferrous metals and plastics.

Q: How is ductile iron pipe manufactured?: Ductile iron pipe is manufactured through a specific process known as centrifugal casting. The process starts with the melting of iron in a furnace, where specific elements such as carbon and silicon are added to achieve the desired properties. Once the iron is melted, it is poured into a spinning mold or a die that is rotating at a high speed. As the molten iron is poured into the rotating mold, centrifugal force pushes the liquid metal towards the inner surface of the mold. This force causes the metal to solidify from the outer surface inward. This results in a pipe with a dense outer layer and a more porous inner layer. The centrifugal casting process ensures that the pipe's outer surface is free from impurities and defects, ensuring its strength and durability. After the pipe has solidified, it is removed from the mold and undergoes further processing. The pipe is cleaned, excess material is trimmed off, and any surface imperfections are removed. It is then treated with a protective coating, such as zinc or epoxy, to enhance its corrosion resistance. The final step in the manufacturing process is quality control and testing. Ductile iron pipes are subjected to various tests to ensure they meet the required standards, including hydrostatic pressure testing, dimensional inspection, and internal and external coating inspection. In summary, ductile iron pipe is manufactured through the centrifugal casting process, which involves melting iron, pouring it into a rotating mold, and allowing it to solidify under centrifugal force. The resulting pipe is then cleaned, coated, and undergoes rigorous quality control to ensure its strength, durability, and adherence to standards.

Q: How does ductile iron pipe perform in areas with high soil consolidation?: In areas characterized by significant soil consolidation, the performance of ductile iron pipe is outstanding. This is because ductile iron possesses inherent strength and flexibility, making it an ideal choice for underground installations where soil consolidation is prevalent. The ground in areas with high soil consolidation often undergoes substantial movement and settling, presenting challenges for buried infrastructure. However, ductile iron pipe's unique characteristics enable it to withstand these conditions effectively. To begin with, the high tensile strength of ductile iron allows it to resist external forces and pressures exerted by the surrounding soil. This strength ensures that the pipe maintains its structural integrity even in areas with high soil consolidation. Furthermore, ductile iron exhibits exceptional resistance to deformation, enabling it to handle ground movement without cracking or breaking. Its flexibility allows the pipe to absorb lateral forces associated with soil consolidation, preventing any damage. Additionally, ductile iron pipe is renowned for its durability and long service life. It is highly resistant to corrosion, abrasion, and chemical attacks, further enhancing its performance in areas with high soil consolidation. This resistance guarantees that the pipe remains intact and fully functional, even in challenging soil conditions. Moreover, the joints of ductile iron pipe are designed to provide secure and leak-free connections. This eliminates the risk of soil infiltration, which can exacerbate soil consolidation and lead to further ground movement. In conclusion, ductile iron pipe is exceptionally suited for areas with high soil consolidation due to its strength, flexibility, durability, and leak-free joints. Its ability to withstand ground movement and maintain structural integrity makes it a reliable choice for underground installations in such conditions.

Q: There are several forms of flexible interfaces for Spigot Cast Iron Pipes: Japan's Kubota ductile mechanical interface, in recent years has been introduced to China. As in the Beijing water pipeline construction from the Miyun reservoir to the Huairou reservoir, the use of a large number of nodular type DN2600mmK mechanical interface of cast iron pipe.The mechanical interface of ductile iron pipe is divided into A and K. The tubes and fittings are made of ductile iron, straight pipes, screws, bolts and rubber rings.The mechanical interface has good sealing performance. When the water pressure reaches 2MPa in the test, there is no leakage. The axial displacement and the angle of folding all reach a high level, but the cost is higher.

Q: How do ductile iron pipes handle differential settlement?: Ductile iron pipes possess exceptional durability and are renowned for their ability to endure diverse environmental conditions, including differential settlement. Differential settlement refers to the uneven settling of the ground, which can often impose stress and strain on underground pipes. Specifically engineered to address settlement issues, ductile iron pipes exhibit inherent flexibility and strength. These pipes possess the capacity to flex and accommodate slight ground movements without incurring significant damage or failure. The flexibility of ductile iron pipes enables them to evenly distribute the stress and strain caused by differential settlement along their length. This characteristic assists in averting concentrated stress points that could potentially result in cracks or fractures in the pipe. Furthermore, the inherent strength of ductile iron pipes equips them with the necessary resistance to withstand the forces generated by differential settlement. The pipes' robust construction and high tensile strength render them less susceptible to deformation or damage caused by ground movements. Moreover, ductile iron pipes are commonly installed with flexible joints, such as rubber gaskets or push-on joints. These joints permit some movement and adapt to any slight misalignment or settlement that may occur. By providing flexibility at the joints, the pipes can better adjust to changes in ground conditions and diminish the risk of failure. In conclusion, ductile iron pipes possess the necessary attributes to effectively cope with differential settlement due to their flexibility, strength, and utilization of flexible joints. These features guarantee that the pipes can endure ground movements and continue to function efficiently without compromising their integrity or longevity.

Q: Is there a kind of pipe called lined ductile iron pipe? Seeking manufacturers?: Yes, ductile pipe is divided into two kinds, one is the ductile cast iron pipe pipe socket (socket ductile pipe), which is mainly used for water supply system, namely the fire water, because of ductile iron pipe with pressure, 10kg, 12kg, 16kg. Pressure small price, a few cheaper, because pure in the production process of different, 1. sand mill 2. metal water cooling, like water, the basic is 16kg.

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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