DUCTILE IRON PIPE DN800 K9/C

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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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 are ductile iron pipes restrained against axial thrust forces?: Axial thrust forces are effectively restrained in ductile iron pipes by utilizing both mechanical restraints and soil resistance. A commonly employed method involves the use of thrust blocks, which are concrete structures constructed at bends, tees, and other directional changes in the pipeline. These blocks are specifically designed to withstand axial forces and prevent any shifting or movement of the pipes caused by the pressure exerted by the flowing fluid. Furthermore, additional support and prevention of axial movement are achieved through the implementation of mechanical restraints, such as pipe restraints, thrust collars, and anchor blocks. Pipe restraints are devices installed around the pipe and connected to adjacent structures, such as walls or concrete collars, in order to prevent any sort of movement. Thrust collars, on the other hand, are utilized to absorb and distribute the thrust forces generated by the flowing fluid. These collars, typically made of ductile iron or steel, are securely fastened around the pipe to counteract axial movement. Moreover, soil resistance plays a crucial role in restraining axial thrust forces. The weight of the soil surrounding the pipe creates frictional resistance, which effectively counteracts the axial forces. In order to ensure effective soil resistance, it is vital to properly backfill the trench, compact the soil, and adequately embed the pipe in the soil. In conclusion, a comprehensive approach involving the use of mechanical restraints such as thrust blocks, pipe restraints, and thrust collars, along with the soil resistance provided by proper trench backfilling and compaction, is employed to restrain axial thrust forces in ductile iron pipes. This approach guarantees the secure placement of the pipes and their ability to withstand the axial forces exerted by the flowing fluid.

Q: Are ductile iron pipes resistant to impact damage?: Ductile iron pipes possess remarkable strength and durability, rendering them resistant to impact damage. Their exceptional toughness and flexibility are a result of their unique composition, which includes a higher percentage of carbon and silicon. Consequently, ductile iron pipes can withstand external forces and impacts, such as those caused by heavy construction equipment or accidental incidents during installation or maintenance activities. Moreover, these pipes exhibit a high resistance to cracking and fracturing, thereby further enhancing their ability to endure impact damage. However, it should be noted that although ductile iron pipes are highly resistant to impact damage, they are not completely immune. Extreme or repeated impacts may still inflict damage, albeit to a lesser extent compared to other pipe types. Regular inspections and maintenance are crucial to detecting and addressing any potential impact damage to ensure the long-term integrity and performance of ductile iron pipes.

Q: Can ductile iron pipes be used for underground compressed air systems?: Underground compressed air systems can utilize ductile iron pipes due to their high strength and durability. These pipes are suitable for various applications, including underground installations, thanks to their corrosion resistance. This is especially important in underground systems where moisture and other environmental factors can cause damage over time. Moreover, ductile iron pipes have the capability to withstand high pressure, making them a dependable choice for compressed air systems. However, it is crucial to ensure proper installation of the pipes, including adequate support and protection, to prevent any damage or leaks. To maintain the longevity and efficiency of the underground compressed air system, regular maintenance and inspection should also be carried out.

Q: Can ductile iron pipes be used in areas with high levels of industrial effluents?: Areas with high levels of industrial effluents can indeed utilize ductile iron pipes. Ductile iron, a variant of cast iron known for its enhanced flexibility and strength, possesses remarkable resistance to corrosion and abrasion. Hence, it is well-suited for managing a wide range of industrial effluents, including those abundant in chemicals, acids, or other corrosive substances. To bolster their defense against chemical attacks, ductile iron pipes feature protective linings, such as cement mortar or polyethylene. These linings serve as barriers, preventing direct contact between the effluents and the iron material. Consequently, the pipes maintain their longevity and integrity. In addition, ductile iron pipes have gained considerable usage in industrial applications involving corrosive environments. They have shown themselves to be dependable and long-lasting, even in demanding conditions. Of course, proper maintenance and regular inspections remain crucial in ensuring the ongoing performance of ductile iron pipes within areas possessing high levels of industrial effluents. It is pivotal to bear in mind the specific characteristics of the effluents and seek guidance from experts or manufacturers when determining the most suitable pipe materials and linings for a particular industrial setting.

Q: How does ductile iron pipe perform in areas with high groundwater salinity?: Due to its inherent resistance to corrosion, ductile iron pipe is highly effective in areas with high groundwater salinity. The presence of elevated levels of salt and minerals in the groundwater can lead to the corrosion and deterioration of certain materials, but ductile iron is highly resilient to this type of corrosion. Its composition and manufacturing process make it less susceptible to damage from corrosive elements found in high salinity water. The primary reason for the corrosion resistance of ductile iron pipe lies in its protective iron oxide coating, which naturally forms on both the interior and exterior surfaces of the pipe. This coating acts as a barrier, preventing direct contact between the pipe and the corrosive elements present in the groundwater. Additionally, ductile iron pipes are often lined with cement mortar or a protective epoxy coating, further enhancing their resistance to corrosion and providing an extra layer of protection. Moreover, ductile iron pipe boasts an extended lifespan, often surpassing 100 years, making it an ideal choice for areas with high groundwater salinity. Its durability and resistance to corrosion ensure that it can withstand the harsh conditions associated with high salinity environments, minimizing the frequency of repairs or replacements. In conclusion, ductile iron pipe is an exceptional option for areas with high groundwater salinity due to its corrosion resistance properties. Its protective iron oxide coating, along with optional linings, offers a dependable and long-lasting solution, guaranteeing the integrity and performance of the pipe system even in demanding environments.

Q: DN300 how long is it for water polo and iron pipes?: Blue interface cast iron pipe, blue fixed inner cushion rubber, blue gasket seal; rigid joint like cast iron pipe mouth, compared with straight pipe inserted cement sealing process, has been basically eliminated

Q: Are there any special coatings or linings available for ductile iron pipe?: Yes, there are special coatings and linings available for ductile iron pipe. These coatings and linings are designed to enhance the durability and longevity of the pipe by providing protection against corrosion, abrasion, and other external factors. Some commonly used coatings and linings for ductile iron pipe include cement mortar lining, polyethylene encasement, and epoxy coatings. These protective measures help to extend the lifespan of the ductile iron pipe and ensure reliable performance in various applications.

Q: What is the difference between flexible joint mechanism and seismic cast iron pipe DN100 and ductile iron pipe?: The ball compressive strength of ductile iron pipe is much higher than that of cast iron pipes, buried in the ground, the car is not easy to be crushed.

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.

Q: What are the different accessories available for ductile iron pipe?: There are several accessories available for ductile iron pipe, including but not limited to, flange adaptors, couplings, valves, fittings, joint restraints, gaskets, and tapping sleeves. These accessories help in connecting, repairing, and maintaining ductile iron pipe systems.

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