DUCTILE IRON PIPE AND PIPE FITTINGS K8 CLASS DN1100

DUCTILE IRON PIPE AND PIPE FITTINGS K8 CLASS DN1100

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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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· 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: How does ductile iron pipe handle temperature changes?: Ductile iron pipe is renowned for its effective handling of temperature changes. The exceptional properties of ductile iron give it a high resistance to thermal expansion and contraction, enabling it to endure extreme temperature variations without significant distortions or failures. When subjected to temperature changes, ductile iron pipes can expand or contract within specific limits due to their inherent ductility. This flexibility assists in accommodating thermal stresses and preventing pipe cracking or breakage. The material's remarkable tensile strength and elasticity also contribute to its capacity to manage temperature changes without substantial structural harm. Furthermore, ductile iron pipes possess a low coefficient of thermal expansion, meaning they expand and contract at a relatively gradual rate compared to other materials. This characteristic minimizes the potential for stress on pipe joints and reduces the risk of leaks or failures. In addition to its exceptional thermal stability, ductile iron pipe is equipped with a protective lining that further enhances its resistance to temperature changes. Linings such as cement mortar or polyethylene create a barrier between the pipe and the transported fluid, preventing any adverse effects caused by thermal variations on the pipe's inner surface. Overall, ductile iron pipe proves to be a dependable choice for applications where temperature changes are frequent. Its ability to withstand thermal stresses, low coefficient of thermal expansion, and protective linings make it a durable and efficient solution for various infrastructural needs, including water distribution, wastewater management, and industrial applications.

Q: Can ductile iron pipe be used for bridge crossings?: Yes, ductile iron pipe can be used for bridge crossings.

Q: What are the typical installation methods for ductile iron pipe?: The typical installation methods for ductile iron pipe involve several steps to ensure proper installation and functionality. Firstly, the trench is excavated to the required depth and width, accounting for the pipe diameter and bedding material. The bottom of the trench is then carefully prepared by removing any sharp objects or debris that could potentially damage the pipe. Next, a layer of suitable bedding material such as sand or fine gravel is placed evenly along the bottom of the trench to provide support and prevent any point loading on the pipe. The bedding material is compacted to ensure stability and eliminate any voids that could cause the pipe to settle or shift over time. After the bedding is in place, the ductile iron pipe is carefully lowered into the trench, taking precautions to prevent any damage to the pipe's protective coating. The pipes are then aligned and supported at regular intervals using appropriate pipe supports or blocks. Once the pipe is properly aligned, the joints are assembled by applying a lubricant and inserting a rubber gasket into the bell end of the pipe. The spigot end of the adjacent pipe is then inserted into the bell end, creating a secure and watertight seal. After the joints are assembled, the backfilling process begins. Backfill material, typically a combination of native soil and select backfill, is carefully placed around the pipe in layers and compacted to provide stability and prevent any voids. The backfilling process is carried out gradually, allowing for proper compaction and avoiding excessive pressure or damage to the pipe. Finally, the trench is fully backfilled and compacted, ensuring that the pipe is adequately supported and protected from external forces. Surface restoration is then performed to restore the area to its original condition, minimizing any disruption caused by the installation process. It is important to note that these installation methods may vary depending on project specifications, local regulations, and engineering recommendations. Therefore, it is essential to consult the manufacturer's guidelines and work closely with qualified professionals to ensure proper installation of ductile iron 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: What is the excavation width of ductile iron pipes with diameters greater than 1400?: Then, according to the soil characteristics, different slopes are calculated, and the width of the excavation is calculated according to the depth and slopeIf the soil is soft, high water content and easy to collapse, the excavation width will be wide, otherwise the slope will be steep and the excavation width will be narrow

Q: How does ductile iron pipe perform in areas with high ground movement?: Ductile iron pipe performs exceptionally well in areas with high ground movement. Its unique properties and design make it highly resistant to deformation and damage caused by ground shifting, settling, or seismic activities. The ductility of the material allows it to withstand significant stress and strain without fracturing or breaking. Unlike rigid materials such as cast iron or PVC, ductile iron pipe has the ability to flex and absorb ground movement, which prevents catastrophic failures and ensures the integrity of the pipeline system. Additionally, ductile iron pipe is manufactured with a variety of joint configurations that further enhance its performance in areas with high ground movement. Flexible joints, such as restrained joints or mechanical joints, accommodate the movement by allowing limited rotation and translation, minimizing the potential for pipe separation or joint failure. Furthermore, the robust construction of ductile iron pipe, which includes a thick wall thickness and a high tensile strength, provides additional protection against ground movement. This strength helps the pipe withstand external loads and forces induced by the ground, preventing deformation and maintaining its structural integrity. In conclusion, ductile iron pipe is an ideal choice for areas with high ground movement due to its exceptional ductility, joint flexibility, and robust construction. Its ability to absorb ground movement without compromising the pipeline system's functionality or safety makes it a reliable and durable option in such challenging environments.

Q: What are the common causes of failure in ductile iron pipes?: The common causes of failure in ductile iron pipes include corrosion, external loading, ground movement, manufacturing defects, and improper installation or maintenance.

Q: What are the different joint types available for ductile iron pipes?: Ductile iron pipes offer various joint types that are essential for maintaining the integrity and reliability of the pipeline system. 1. The push-on joint is the most prevalent joint used for ductile iron pipes. It involves inserting a rubber gasket into the bell end of the pipe and then pushing the spigot end into the bell, ensuring a tight seal. This joint is easy to assemble, quick, and has excellent resistance against soil movement and water pressure. 2. The mechanical joint involves a gland and follower that are secured around the spigot end of the pipe using bolts and nuts. It provides a robust and durable connection and is commonly used for larger diameter pipes or applications that expect higher pressure or thrust loads. 3. Flanged joints are utilized when connecting pipes to other components like valves or fittings. The pipe ends are machined and equipped with flanges that are bolted together using gaskets, ensuring a secure connection. These joints find frequent use in industrial applications or situations requiring frequent disassembly. 4. Restrained joints are designed to withstand significant external forces and prevent separation or pulling apart of the pipe. They typically combine mechanical joint components, such as bolts and glands, with additional restraining elements like welded or bolted-on restraints. These joints are commonly employed in high-pressure applications or situations where substantial external forces are present. Choosing the appropriate joint type is crucial and depends on factors such as pipeline design, operating conditions, and installation requirements. Seeking guidance from experienced engineers or pipe manufacturers can aid in determining the most suitable joint type for a specific ductile iron pipe application.

Q: Can ductile iron pipes be used for dam construction?: Indeed, dam construction can utilize ductile iron pipes. Renowned for their robustness, longevity, and resistance to corrosion, these pipes prove apt for various purposes, including the construction of dams. They exhibit remarkable resilience under intense pressure, rendering them perfect for transporting water and other fluids throughout the dam's framework. Moreover, their capacity to withstand external forces and ground shifts establishes them as a dependable option for dam construction. Furthermore, the relative ease of installation and maintenance of ductile iron pipes enhances their appropriateness for dam construction endeavors.

Q: What is the difference between cast iron pipe and seamless steel pipe and galvanized steel pipe?: Galvanized steel pipe: divided into cold galvanized steel pipe, hot galvanized steel pipe, cold galvanized steel pipe has been banned, and the latter is also advocated by the state for the time being. In 60s and 70s, developed countries began to develop new types of pipes, and galvanized pipes were banned. China's Ministry of construction and other four ministries also issued a civilization, indeed from two, 000 years since the galvanized pipe as a water supply pipe, the New District cold water pipe has rarely used galvanized pipe, and some of the hot water pipe is galvanized pipe. Hot dip galvanized steel pipe is widely used in fire, power and highway.

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