DUCTILE IRON PIPES AND PIPE FITTINGS K9 CLASS DN1200

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 22 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 is ductile iron pipe different from cast iron pipe?: Ductile iron pipe and cast iron pipe are commonly used in plumbing and drainage applications, but they have differences in composition, strength, and flexibility. To begin with, ductile iron pipe is made from a different iron alloy than cast iron pipe. Ductile iron contains more carbon and silicon, which gives it increased strength and durability. On the other hand, cast iron pipe is made from gray iron, which has higher carbon content but lacks the flexibility of ductile iron. Moreover, ductile iron pipe is renowned for its superior strength and resistance to impact. It can withstand higher pressures and is less likely to crack or break under heavy loads or external forces. Cast iron pipe, although strong, is more brittle and prone to fractures and failures. Another significant distinction is the flexibility of ductile iron pipe. It possesses greater flexibility and can endure bending and deformation without fracturing. This flexibility facilitates easier installation, particularly in areas with uneven terrain or where ground movement may occur. In contrast, cast iron pipe is less flexible and more rigid, making it unsuitable for applications that require flexibility. Additionally, ductile iron pipe has a smoother interior surface compared to cast iron pipe. This smoothness reduces friction, enhances flow efficiency, and minimizes the accumulation of sediment and deposits within the pipe, resulting in improved water flow and reduced maintenance needs. In conclusion, ductile iron pipe sets itself apart from cast iron pipe due to its composition, strength, flexibility, and smooth interior surface. Ductile iron offers superior strength, impact resistance, and flexibility, making it the preferred choice in various plumbing and drainage applications.

Q: Will the cast iron pipes rust?: Ductile iron pipe corrosion process is good, decided whether it will rust. Whether it will rust or not, the key is whether the anti-corrosion process of the nodular cast iron pipe is in place.

Q: Can ductile iron pipes be used for above-ground installations?: Yes, ductile iron pipes can be used for above-ground installations. They have excellent strength and durability, making them suitable for various applications, including above-ground installations where corrosion resistance and structural integrity are required.

Q: What is the expected joint restraint method for ductile iron pipes?: Typically, when it comes to joint restraint methods for ductile iron pipes, the two commonly used options are mechanical joints or push-on joints. Both of these joint types are reliable and prevent leaks, ensuring the stability and integrity of the pipeline system. Mechanical joints involve the use of rubber gaskets and bolts to tightly seal the joints, while push-on joints rely on a groove and rubber gasket system to create a watertight seal. Both methods have excellent joint restraint capabilities and allow for the smooth transmission of fluids or gases through the pipeline without any risk of joint separation or failure. Moreover, these joint restraint methods also make installation and maintenance easier, which is why they are often preferred for ductile iron pipe systems.

Q: Does the cast iron have size 250? What's the performance?: Ductile iron does not have size 250. Ductile iron is the beginning of QT, QT400-15, QT450-10, QT500-7 is the general use of nodular cast iron brand. Nodular cast iron welding can be determined, this should be in some high strength cast iron equipment used more, the tensile strength of normally ductile cast iron welding in welding is higher, is worse than the grey cast iron, it is actually very difficult to distinguish with the naked eye is ductile iron or cast iron the iron in the repair equipment, we usually use WE777 special cast iron electrode universal wide welding, but it is only for maintenance use, the effect is really good, reducing the risk of cracking and high strength welding rod matching to ensure the strength of welding seam.

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: What are the typical joint restraint requirements for ductile iron pipes in seismic zones?: In seismic zones, the typical joint restraint requirements for ductile iron pipes are designed to ensure the structural integrity and prevent displacement or separation of the pipes during seismic events. These requirements are crucial to maintain the reliability and functionality of the pipeline system. One common joint restraint requirement for ductile iron pipes in seismic zones is the use of flexible or mechanical joint systems. Flexible joints, such as rubber gasket joints, can absorb and accommodate the movement caused by seismic activity. These joints allow for axial movement, angular deflection, and expansion/contraction of the pipes, reducing the risk of pipe failure or damage. Another important requirement is the use of adequate anchoring systems. This involves securing the pipes to the surrounding structures or embedding them in concrete thrust blocks to prevent excessive movement or displacement during seismic events. Anchoring systems help distribute the forces generated by the earthquake and minimize the risk of pipe separation or breaking. Additionally, seismic design standards often require the use of seismic restraints, such as seismic joint restraints or bracing systems, to further enhance the stability and integrity of the ductile iron pipes. These restraints are designed to limit the movement of the pipes in specific directions, reducing the potential for damage and maintaining the overall system performance. It is important to note that the specific joint restraint requirements for ductile iron pipes in seismic zones may vary depending on local building codes, seismic activity levels, and engineering considerations. It is crucial to consult the relevant regulations and work with experienced professionals in the design and installation process to ensure compliance with the necessary requirements for seismic resistance.

Q: The difference between ductile iron pipe and steel pipe used in pipe jacking: Comparison between ductile iron pipe and universal cast iron pipe: the process of making ductile iron pipe is cast by adding alkaline earth metal or rare metal such as magnesium and calcium in the raw material of common cast iron pipe.

Q: What are the different types of thrust restraints for ductile iron pipe?: There are several different types of thrust restraints that can be used for ductile iron pipe installations. These thrust restraints are designed to prevent the pipe from moving or separating under the forces generated by internal pressure, external loads, or changes in temperature. 1. Thrust blocks: Thrust blocks are concrete structures that are typically installed at bends, tees, and other changes in direction in the pipeline. They are designed to resist the thrust forces by transferring them to the surrounding soil or foundation. 2. Mechanical restraints: Mechanical restraints, such as tie rods or harnesses, are used to restrain the pipe by exerting an external force on it. These restraints are typically made of steel and can be adjusted to accommodate changes in pipe length or alignment. 3. Pipe anchors: Pipe anchors are devices that are installed at specific intervals along the pipeline to provide resistance against axial movement. They are usually made of steel and are embedded into the surrounding soil or concrete to provide a secure anchor point for the pipe. 4. Thrust collars: Thrust collars are devices that are installed around the pipe to prevent it from moving or separating. They are typically made of steel and are placed at strategic locations along the pipeline to absorb the thrust forces. 5. Restrained joint systems: Restrained joint systems are specialized pipe joints that are designed to resist axial forces. These joints typically have additional features, such as keyways or wedges, that provide resistance against movement. It is important to select the appropriate type of thrust restraint based on the specific requirements of the ductile iron pipe installation. Factors such as the pipe diameter, operating pressure, soil conditions, and potential external loads should be considered when determining the most suitable thrust restraint system. Consulting with a qualified engineer or pipe manufacturer can help ensure the proper selection and installation of thrust restraints for ductile iron pipe.

Q: What is the expected corrosion rate of ductile iron pipes?: The expected corrosion rate of ductile iron pipes can vary depending on several factors, including the specific environment in which the pipes are installed, the pH and composition of the water or soil they come into contact with, and the presence of any corrosive substances or chemicals. In general, ductile iron pipes are known for their excellent resistance to corrosion compared to other materials such as cast iron or steel. This is due to the presence of a protective layer called a passive film, which forms naturally on the surface of the pipes when exposed to oxygen in the environment. This passive film acts as a barrier, preventing further corrosion from occurring. However, it is important to note that even ductile iron pipes can experience some level of corrosion over time, especially in aggressive or highly corrosive environments. The expected corrosion rate can range from very low to moderate, depending on the aforementioned factors. To ensure the longevity and performance of ductile iron pipes, it is recommended to implement proper maintenance and monitoring practices. This includes regular inspections, cleaning, and the application of protective coatings or linings when necessary. Additionally, implementing a cathodic protection system can further enhance the corrosion resistance of the pipes. Ultimately, it is important to consult with experts and professionals in the field of corrosion and pipe materials to accurately determine the expected corrosion rate of ductile iron pipes in a specific application or environment.

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