• DUCTILE  IRON PIPES  AND PIPE FITTINGS K8CLASS DN1000 System 1
DUCTILE  IRON PIPES  AND PIPE FITTINGS K8CLASS DN1000

DUCTILE IRON PIPES AND PIPE FITTINGS K8CLASS DN1000

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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:Will nodular cast iron pipes rust?
Qualified ductile iron pipe requires lining standard cement. The outer wall of pipe needs spraying zinc treatment and asphalt paint coating, and other epoxy resin paint can also be selected. Qualified ductile iron pipes can be used for more than a hundred years. The main place where rust is easily exposed is where the outer wall meets the soil because of its high humidity and high oxygen content. Qualified anticorrosion can effectively resist rust, its process principle can not give you the details.
Q:Can ductile iron pipes be used in areas with high levels of hydrogen sulfide gas?
Ductile iron pipes can generally be used in areas with high levels of hydrogen sulfide gas, but it is important to consider certain factors before making a decision. Hydrogen sulfide gas is corrosive and can potentially cause damage to metal pipes over time. While ductile iron is known for its durability and corrosion resistance, prolonged exposure to high levels of hydrogen sulfide gas can still lead to corrosion and deterioration. To mitigate the risks associated with hydrogen sulfide gas, it is advisable to assess the specific conditions of the area beforehand. This includes conducting a comprehensive analysis of the hydrogen sulfide gas concentration, pH levels, temperature, and other factors that may influence corrosion. Consulting with experts or engineering professionals who specialize in corrosion control can provide valuable insights and guidance. In some cases, additional measures may be necessary to protect ductile iron pipes. Coating the interior and exterior surfaces of the pipes with protective materials, such as epoxy or polyethylene, can provide an extra layer of defense against corrosion. Alternatively, cathodic protection systems can be employed to protect the pipes by applying a low voltage electrical current that mitigates the corrosion process. Ultimately, the decision to use ductile iron pipes in areas with high levels of hydrogen sulfide gas should be based on a thorough understanding of the specific conditions and implementing appropriate corrosion prevention measures. Regular monitoring and maintenance should also be conducted to ensure the pipes are functioning optimally and to address any potential issues before they escalate.
Q:Can ductile iron pipe be used for water well applications?
Yes, ductile iron pipe can be used for water well applications. Ductile iron has excellent strength, durability, and corrosion resistance, making it suitable for transporting water in various applications, including water well systems.
Q:What are the different types of thrust restraints for ductile iron pipe?
Ductile iron pipe installations utilize various thrust restraints to prevent pipe movement or separation caused by internal pressure, external loads, or temperature changes. 1. Concrete thrust blocks are structures installed at bends, tees, and directional changes in the pipeline. Their purpose is to transfer thrust forces to the surrounding soil or foundation, effectively resisting pipe movement. 2. Mechanical restraints, such as tie rods or harnesses, are steel-based devices that apply external force to restrain the pipe. They can be adjusted to accommodate changes in pipe length or alignment. 3. Pipe anchors, made of steel, are installed at intervals along the pipeline to provide resistance against axial movement. These anchors are embedded into the surrounding soil or concrete, securing the pipe firmly. 4. Thrust collars, typically made of steel, encircle the pipe to prevent movement or separation. They are strategically placed along the pipeline to absorb thrust forces. 5. Restrained joint systems are specialized pipe joints designed to resist axial forces. They possess additional features like keyways or wedges, enhancing resistance against movement. Selecting the appropriate thrust restraint system for ductile iron pipe installations depends on factors such as pipe diameter, operating pressure, soil conditions, and potential external loads. Consulting with qualified engineers or pipe manufacturers ensures the proper selection and installation of thrust restraints.
Q:What material is ductile cast iron 235A?
Pig iron is an alloy of iron and carbon carbon content more than 2%, pig iron carbon content is generally in 2.5%--4%, including C, SI, and Mn, S, P and other elements, is the use of iron ores in blast furnace products. According to the different forms of carbon in pig iron, and can be divided into pig iron, cast iron and steel ball ductile cast iron. Several precipitation of spherical graphite cast iron. The cutting action on the metal substrate than spheroidal graphite flake graphite cast iron, the strength of the matrix organization strength of 70 ~ 90%, the tensile strength is up to 120kgf/mm2, and has good toughness. Ductile iron chemical composition besides iron usually contains: the amount of carbon 3.3.8%, silicon 2.3.0%, manganese, phosphorus, sulfur and no more than 1.5% of the total amount of rare earth, magnesium spheroiditic agent.
Q:Are ductile iron pipes suitable for use in hydropower projects?
Indeed, ductile iron pipes prove to be a suitable option for implementation in hydropower projects. Possessing a remarkable tensile strength and corrosion resistance, these pipes emerge as the ideal choice for applications in hydropower projects where water flow and pressure play a significant role. Demonstrating the ability to endure high pressure and boasting durability, these pipes guarantee long-term reliability and safety within hydropower systems. Furthermore, when compared to alternative materials such as steel, ductile iron pipes present a cost-effective solution, rendering them a favored selection for hydropower projects. In summary, ductile iron pipes possess the essential characteristics and performance qualities necessary to meet the rigorous conditions encountered in hydropower projects.
Q:What is the expected service life of ductile iron pipe?
The expected service life of ductile iron pipe can vary depending on various factors such as the environment, soil conditions, water quality, and the level of maintenance and corrosion protection measures implemented. However, on average, ductile iron pipe is designed to have a service life of 75 to 100 years. This is due to its superior strength, durability, and resistance to corrosion. Ductile iron pipe is known for its ability to withstand harsh conditions and has been used extensively in water and wastewater systems, industrial applications, and other infrastructure projects. Regular maintenance and proper corrosion protection can further extend the service life of ductile iron pipe, ensuring its continued reliability and performance over many decades.
Q:What are the typical installation methods for ductile iron pipe?
Proper installation and functionality of ductile iron pipe involve a series of steps. Firstly, the trench must be excavated to the required depth and width, considering the pipe diameter and bedding material. Careful preparation of the trench bottom is then necessary to remove sharp objects or debris that could damage the pipe. Next, an even layer of suitable bedding material, like sand or fine gravel, is placed along the trench bottom to support the pipe and prevent point loading. This bedding material is compacted to ensure stability and eliminate any voids that may cause pipe settling or shifting over time. Once the bedding is set, the ductile iron pipe is gently lowered into the trench, taking precautions to protect the pipe's coating. Regular intervals along the trench, appropriate pipe supports or blocks are used to align and support the pipes. After proper alignment, the joints are assembled by lubricating 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. With joints 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 ensure stability and prevent voids. Gradual backfilling allows for proper compaction without excessive pressure or pipe damage. Finally, the trench is fully backfilled and compacted to adequately support and protect the pipe from external forces. Surface restoration is then performed to minimize disruption caused by the installation process and restore the area to its original condition. It is important to note that installation methods may vary based on project specifications, local regulations, and engineering recommendations. Consulting the manufacturer's guidelines and working closely with qualified professionals is essential to ensure proper installation of ductile iron pipe.
Q:What are the different types of joints used in ductile iron pipes?
Ductile iron pipes commonly utilize various types of joints to achieve secure and leak-proof connections between pipe sections. Here are some of the frequently employed joint types: 1. Push-on joint: This joint type offers easy installation without the need for specialized tools. It entails lubricating the gasket on one pipe end and inserting it into the socket of the adjacent pipe. The gasket ensures a tight seal to prevent any leakage. 2. Mechanical joint: Consisting of a gland and a follower gasket, this joint type involves placing the gland over the spigot end of one pipe and inserting the follower gasket into the bell end of the neighboring pipe. Bolts and nuts are then used to tighten the gland, compressing the gasket and creating a secure joint. 3. Restrained joint: In applications requiring restraint against axial movement or pressure thrust, this joint type is utilized. Typically, it involves a mechanical joint combined with additional components like tie rods, thrust blocks, or restrained couplings to provide the necessary restraint. 4. Flanged joint: Large diameter ductile iron pipes often employ flanged joints. They consist of a flange on one pipe end and a mating flange on the other pipe end. The two flanges are bolted together, establishing a robust and secure connection. Flanged joints enable easy disassembly and reassembly when necessary. 5. Welded joint: Welded joints are created by fusing the ends of two pipes together using heat and pressure. This type of joint ensures a permanent and strong connection. Welded joints are commonly employed in underground or buried applications where long-term durability is a crucial factor. It is essential to consider factors such as pipe diameter, application, and project requirements when selecting the appropriate joint type. Consulting with a professional engineer or referring to the manufacturer's guidelines is recommended to ensure the suitable joint type is chosen for ductile iron pipes.
Q:How does the white iron appear in the case of ductile iron?
The addition of 0.2% SiC in the raw iron water can effectively reduce the chill.

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