DUCTILE IRON PIPES & FITTINGS K7CLASS DN500

DUCTILE IRON PIPES & FITTINGS K7CLASS DN500

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 33 pc

Supply Capability:: 3000 pc/month

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Specifications

· 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 soil movements and settlements?: Ductile iron pipe has excellent resistance to soil movements and settlements due to its high tensile strength and flexibility. The pipe's ability to withstand soil loads and settle without compromising its structural integrity makes it a reliable choice for underground applications. Additionally, the pipe's joint design allows for some degree of movement, further reducing the risk of damage or failure.

Q: How are ductile iron pipes installed?: Typically, the installation of ductile iron pipes follows a specific process. Firstly, the required depth and width of the trench are excavated. Careful leveling and compaction of the trench's bottom then establish a stable foundation. Next, a bedding material, usually a mixture of sand and gravel, is placed at the trench's bottom. This material supports the pipe and distributes the load evenly, while also safeguarding it from any sharp objects in the soil. Once the bedding is prepared, the ductile iron pipes are gently lowered into the trench and aligned as desired. Proper alignment and the correct slope are essential for efficient water flow. Subsequently, the pipes are joined together using either a mechanical joint or a push-on joint system. These joints are designed to create a secure, leak-free connection between the pipes. Rubber gaskets are typically used to seal the joints and establish a watertight seal. After joining the pipes, the trench is backfilled with the excavated soil. Care is taken to compact the soil in layers to prevent settlement. The backfilling process is typically carried out in stages to ensure proper compaction. Lastly, the installation is completed by connecting the ductile iron pipes to the existing water supply system or other pipes using appropriate fittings and valves. Pressure testing may also be conducted to verify the installation's integrity. In conclusion, the installation of ductile iron pipes necessitates meticulous planning, precise alignment, and secure jointing to establish a durable and dependable water supply system.

Q: What is the maximum allowable joint deflection for ductile iron pipes?: The maximum allowable joint deflection for ductile iron pipes varies based on the specific design and application requirements. However, it is generally recommended to limit joint deflection to a maximum of 5% of the pipe diameter to ensure the structural integrity and longevity of the pipeline.

Q: What are the different types of fittings available for ductile iron pipe?: There are several different types of fittings available for ductile iron pipe. These fittings are designed to connect, redirect, or branch off the pipe in various configurations to suit different plumbing or piping systems. One common type of fitting is the flanged fitting, which features a flange or lip on one end that allows for easy bolted connection to another flanged component. Flanged fittings are commonly used in applications where a tight seal is required, such as in water or sewage systems. Another type of fitting is the mechanical joint fitting, which utilizes a gasket and a set of mechanical bolts to create a secure connection between two pieces of pipe. Mechanical joint fittings are often used in underground water or sewer systems. Push-on fittings are another popular option for ductile iron pipe. These fittings have a rubber gasket that is compressed onto the pipe, creating a watertight seal. Push-on fittings are quick and easy to install, making them ideal for applications where speed and efficiency are important. For situations where a change in direction is required, ductile iron pipe fittings such as elbows or bends are used. These fittings are designed to smoothly change the direction of the pipe without causing any significant flow restrictions. Additionally, there are saddle fittings available for ductile iron pipe. These fittings are used to create a branch connection on an existing pipeline without the need for cutting or welding. Saddle fittings are commonly used in irrigation or fire protection systems. Overall, the different types of fittings available for ductile iron pipe provide a range of options to meet the specific needs of different plumbing or piping systems. Whether it's flanged fittings for a tight seal, mechanical joint fittings for underground applications, push-on fittings for quick installation, or specialized fittings like elbows or saddle fittings, each type serves a specific purpose in the overall plumbing or piping system.

Q: What is the expected fatigue life of ductile iron pipes under cyclic loading?: The expected fatigue life of ductile iron pipes under cyclic loading can vary depending on various factors such as the magnitude and frequency of the cyclic loading, the quality of the material, the design and installation of the pipes, and the environmental conditions. Ductile iron is known for its high strength and ductility, which enables it to withstand cyclic loading to a certain extent. However, like any other material, it is also susceptible to fatigue failure over time. To estimate the expected fatigue life of ductile iron pipes, engineers often utilize fatigue analysis and testing methods. These methods involve subjecting representative samples of the pipes to cyclic loading under controlled conditions and measuring the number of cycles required for failure to occur. The results of these tests are then used to extrapolate the expected fatigue life of the pipes under similar loading conditions. It is important to note that the expected fatigue life can vary significantly depending on the specific conditions and loading patterns experienced by the pipes in a given application. Therefore, it is crucial to consider factors such as the operational demands, maintenance practices, and the overall structural integrity of the pipeline system. Additionally, the use of appropriate design standards and guidelines, along with regular inspection and maintenance, can help enhance the fatigue life of ductile iron pipes. In summary, while it is challenging to provide a specific value for the expected fatigue life of ductile iron pipes under cyclic loading, engineers can estimate it through fatigue analysis and testing methods. It is essential to consider various factors and maintain the pipes properly to ensure their longevity and prevent potential failures.

Q: What is the expected cyclic fatigue life of ductile iron pipes?: The expected cyclic fatigue life of ductile iron pipes can vary depending on several factors such as the quality of the material, design and installation practices, operating conditions, and maintenance. However, ductile iron pipes generally have a long fatigue life, often exceeding 100 years under normal operating conditions.

Q: Can ductile iron pipes be used in areas with high soil liquefaction potential?: Ductile iron pipes can be used in areas with high soil liquefaction potential, but certain precautions and considerations need to be taken into account. Soil liquefaction is a phenomenon in which saturated soil temporarily loses its strength and behaves like a liquid during an earthquake or other seismic events. Ductile iron pipes are known for their strength, durability, and resistance to external loads, making them suitable for various applications, including water and wastewater transportation. However, when it comes to areas with high soil liquefaction potential, additional measures should be considered to ensure the pipes' performance and integrity. One crucial factor to consider is the pipe's installation depth. Ductile iron pipes should be installed at a sufficient depth below the ground surface to minimize the effects of soil liquefaction. The depth will vary depending on soil conditions and the level of seismic activity in the area. Consulting with geotechnical engineers and following local building codes and regulations is essential to determine the appropriate installation depth. Furthermore, proper backfill materials and compaction techniques must be employed during the pipe installation process. Using granular materials, such as crushed stone or gravel, for backfill can help improve the soil's stability and reduce the potential for liquefaction. Adequate compaction of the backfill is also necessary to ensure the pipes' stability and prevent settlement or movement during seismic events. Moreover, it is recommended to use flexible joints, such as restrained joints or push-on joints, when installing ductile iron pipes in areas prone to soil liquefaction. These joints allow for some movement and flexibility, which can help absorb the ground's movement during an earthquake, reducing the stress on the pipes and minimizing the risk of damage. Regular inspection and maintenance of the ductile iron pipes are crucial in high soil liquefaction potential areas. Monitoring for any signs of movement, settling, or damage should be conducted, and any necessary repairs or reinforcements should be promptly addressed to ensure the pipes' continued performance and safety. In conclusion, ductile iron pipes can be used in areas with high soil liquefaction potential, but careful consideration of installation depth, proper backfill materials and compaction, the use of flexible joints, and regular maintenance are crucial to ensuring their optimal performance and longevity. Consulting with geotechnical engineers and following local building codes and regulations is highly recommended to ensure the pipes' suitability in such areas.

Q: Can ductile iron pipe be used for nuclear power plants?: Yes, ductile iron pipe can be used for certain applications in nuclear power plants, particularly in non-safety-related systems such as cooling water, fire protection, or ancillary service pipelines. However, for safety-related systems that involve high-pressure or high-temperature conditions, materials with higher performance characteristics such as stainless steel or alloy materials are typically preferred.

Q: How do we handle the leaking of the ductile iron pipe?: A hoop is a component that holds or ties another material with one material. It belongs to the fastener. The hoop holding device is composed of a hoop plate, a wing plate, a tension tie plate, a bolt and an inner liner. There are many kinds of hoop, hoop cable, wire rod hoop, hoop cable, wire hoop, stainless steel hoop are commonly used.

Q: What is the weight of a typical ductile iron pipe?: The weight of a typical ductile iron pipe can vary depending on its diameter, length, and thickness. However, a common range for ductile iron pipes is between 1 to 5 pounds per foot.

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