DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN100

DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN100

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 23 pc

Supply Capability:: 3000 pc/month

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Ductile Iron Pipes of China on Chip Price DN400 EN545/EN598/ISO2531

· Material : Ductile Cast Iron

· Size Range : DN 80mm to DN 2000mm

· Unit Effective Length : 6m or 5.7m

· Manufacture Standard: ISO 2531:1998/ EN 545:2006/EN 598:2007

· Annual capacity : 200,000 tons

· Coating Exterior: Zinc 130g/m2 according to ISO 8179-1 and bitumen coating 70 microns.

· Cement Interior: Portland Cement/ High Alumina Cement/ Sulphate Resisting Cement Lining according to ISO 4179

· Special requirements on external coating and internal lining can be applied

· We also provide accessories such as SBR/EPDM rubber gaskets, lubricant paste, pipe caps, PE sleeves, etc.

Additional Parts:

Each pipe is strictly inspected according to related standard to ensure permanently high performance.
Easy Installation at site and service free for life
Long Service Lifespan
Quotation will arrive you within 24hours once we get your inquiry.
We guarantee offering you a competitive price.
A copy of original inspection reports of pipes will be offered after shipment.
Photos of loading process will be sent to the customer after shipment effect.
We will follow-up the delivery progress after shipment effect and update to the customer on weekly basis.

Q: What is the lifespan of ductile iron pipes?: The lifespan of ductile iron pipes can vary depending on various factors such as the quality of the pipes, the installation conditions, and the environment in which they are used. However, on average, ductile iron pipes have a lifespan of around 50 to 100 years. This makes them a durable and long-lasting option for water and sewer infrastructure. With proper maintenance and regular inspections, ductile iron pipes can continue to function effectively and efficiently for several decades. It is important to note that factors like corrosion, soil conditions, and water chemistry can impact the lifespan of these pipes, so monitoring and addressing these issues can help extend their lifespan.

Q: How is ductile iron pipe installed?: Ductile iron pipe is typically installed using the trenchless method, which involves three main steps: preparation, installation, and backfilling. First, the trench is excavated and prepared with a proper foundation for the pipe. Then, the ductile iron pipe is carefully lowered into the trench using specialized equipment and joined together using mechanical joints or flanged connections. Finally, the trench is backfilled with suitable material and compacted to provide stability and support to the installed pipe.

Q: How are ductile iron pipes repaired if they get damaged?: Ductile iron pipes are repaired in a few different ways depending on the extent of the damage. Here are some common methods for repairing ductile iron pipes: 1. Spot Repair: If the damage is minimal and localized, a spot repair can be carried out. This involves cutting out the damaged section of the pipe and replacing it with a new section. The new section is typically joined to the existing pipe using mechanical couplings or flanged connections. 2. Pipe Lining: In cases where the damage is more extensive but the pipe is still structurally sound, pipe lining can be used. This involves inserting a liner into the damaged pipe, which creates a new smooth surface. The liner can be made of various materials such as epoxy or cured-in-place pipe (CIPP). This method avoids the need for excavation and replacement of the entire pipe. 3. Pipe Bursting: For severely damaged or deteriorated pipes, pipe bursting may be the best option. This process involves pulling a new pipe through the existing damaged pipe, simultaneously fracturing the old pipe and replacing it with a new one. This method is typically used when the existing pipe is beyond repair and needs complete replacement. 4. Welding and Patching: In certain cases, small leaks or cracks in ductile iron pipes can be repaired by welding or patching. Welding involves melting and fusing the metal together to seal the damaged area. Patching, on the other hand, involves applying a specialized epoxy or composite material over the damaged section to create a watertight seal. It is important to note that the repair method used will depend on factors such as the extent of the damage, accessibility to the pipe, and the expertise of the repair crew. In all cases, proper assessment, planning, and execution are crucial to ensure a successful and long-lasting repair.

Q: How does ductile iron pipe handle traffic loads and vibrations?: Ductile iron pipe is known for its excellent strength and flexibility, allowing it to efficiently handle traffic loads and vibrations. Its superior durability and resilience enable it to withstand heavy vehicle traffic without experiencing significant deformation or damage. Additionally, the material's inherent vibration-damping properties help to minimize the transmission of vibrations caused by traffic, ensuring a smoother and quieter flow of traffic. Overall, ductile iron pipe is a reliable and robust choice for managing traffic loads and vibrations effectively.

Q: Can ductile iron pipes be used for underground utilities?: Underground utilities can indeed utilize ductile iron pipes. Renowned for their robustness, strength, and ability to withstand external pressure, ductile iron pipes prove to be a fitting option for subterranean applications demanding remarkable load-bearing capacity, such as utility installations. Furthermore, these pipes exhibit resistance to corrosion, a crucial attribute for underground environments that subject the pipes to dampness and soil conditions. Moreover, ductile iron pipes surpass alternative materials in terms of service life, thereby reducing the necessity for frequent replacements and maintenance. Consequently, ductile iron pipes find widespread application in underground utilities, encompassing water distribution, sewage systems, and gas pipelines.

Q: Some questions about the bearing capacity of nodular cast iron pipes!: The pipe diameter is D, the tube thickness is T, and the internal bearing pressure P is related to the yield limit [S] of the pipe:PD=2T[S]Or [S]=PD/ (2T)If the P=3MPa, D=300mm and T=6 mm are substituted, the pipe yield limit should be given[S]=3*300/ (2*6) = 75 MPaI think the ductile iron pipe's yield limit should be greater than this value. Factory production should be all right. Only ductile iron pipe production, low product specifications, prices are higher.

Q: Can ductile iron pipe be used for pump stations?: Certainly, pump stations can utilize ductile iron pipe. Ductile iron pipe is extensively employed in underground water and wastewater systems, including pump stations. It provides numerous benefits, including remarkable strength, durability, and resistance to corrosion, thus ensuring its appropriateness for such purposes. Moreover, ductile iron pipe seamlessly harmonizes with various pump types and is renowned for its extended lifespan, rendering it an optimal selection for pump station projects.

Q: Why does the construction wastewater system use ductile iron pipes instead of galvanized steel tubes?: The cost is low, the construction cost is low, and the schedule is fast. Such as PVC, PE double wall corrugated pipes, etc..

Q: What are the different lining materials available for ductile iron pipe?: Ductile iron pipes have multiple options for lining materials, which serve to safeguard the pipes from corrosion and prolong their lifespan. Some commonly used lining materials are as follows: 1. Cement Mortar Lining: This lining comprises a layer of cement mortar applied to the inner surface of the pipe. It serves as a durable and smooth barrier against corrosion, making it a popular choice for water and wastewater applications. 2. Polyethylene Encasement: In this method, the pipe is wrapped with a layer of polyethylene film. This lining delivers excellent protection against corrosion and is frequently employed in aggressive soil conditions. 3. Polyurethane Lining: Polyurethane lining is a spray-applied substance that forms a seamless and flexible barrier within the pipe. It offers exceptional resistance to chemicals and abrasion, making it suitable for applications involving aggressive fluids. 4. Epoxy Lining: Epoxy lining is widely chosen for lining ductile iron pipes due to its outstanding resistance to corrosion and chemicals. It is typically applied as a liquid coating that cures to form a protective and smooth layer. 5. Zinc Coating: Zinc coating, also known as galvanizing, involves applying a layer of zinc to the external surface of the pipe. This lining provides corrosion resistance and is commonly utilized in outdoor and exposed applications. These diverse lining materials offer distinct advantages and are selected based on the specific requirements of the application. Factors such as the nature of the transported fluid, environmental conditions, and expected service life play a crucial role in determining the most suitable lining material for ductile iron pipes.

Q: Are ductile iron pipes resistant to environmental stress cracking?: Indeed, environmental stress cracking is not a concern for ductile iron pipes. Ductile iron, a form of cast iron that has been infused with small amounts of magnesium for enhanced strength and ductility, possesses this advantageous quality. Consequently, these pipes exhibit exceptional resistance to cracking and harm caused by environmental stress factors like temperature fluctuations, soil shifting, and corrosive elements present in the surrounding environment. Moreover, the inherent robustness and adaptability of ductile iron enable it to endure substantial external pressure and stress without succumbing to cracking or failure. Ultimately, ductile iron pipes are a dependable and long-lasting option for various purposes, such as the transportation of water and wastewater, thanks to their ability to withstand environmental stress cracking.

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