• DUCTILE IRON PIPE AND PIPE FITTINGS C CLASS DN200 System 1
  • DUCTILE IRON PIPE AND PIPE FITTINGS C CLASS DN200 System 2
DUCTILE IRON PIPE AND PIPE FITTINGS C CLASS DN200

DUCTILE IRON PIPE AND PIPE FITTINGS C CLASS DN200

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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 are ductile iron pipes protected from external damage?
Ductile iron pipes are protected from external damage through the application of protective coatings. These coatings act as a barrier, shielding the pipes from corrosion and other forms of external damage. Additionally, the pipes may be encased in concrete or installed in a casing pipe to provide further protection against external forces and impacts.
Q:How are ductile iron pipes manufactured?
Ductile iron pipes are manufactured through a process called centrifugal casting. In this process, molten iron is poured into a spinning mold, which creates a centrifugal force. This force helps to distribute the molten iron evenly along the mold's inner surface, resulting in a dense and uniform pipe wall thickness. After cooling and solidification, the pipe is removed from the mold, tested for quality, and then coated with a protective layer to enhance its durability and resistance to corrosion.
Q:What is the expected thermal expansion of ductile iron pipes?
Several factors, including the iron's composition, temperature range, and pipe length, can affect the expected thermal expansion of ductile iron pipes. Generally, these pipes have a coefficient of thermal expansion between 10 and 13 µin/in/°F. This implies that for every one degree Fahrenheit rise in temperature, the ductile iron pipe will expand by around 10 to 13 microinches per inch in length. It is worth mentioning that this estimation is approximate and may slightly differ based on the pipe's specific conditions and characteristics.
Q:How are ductile iron pipes tested for quality?
Various methods are employed to test the quality of ductile iron pipes, ensuring they meet required standards and specifications. One commonly used test is the hydrostatic pressure test, wherein the pipes are subjected to high-pressure water or other liquids to detect leaks or weaknesses. Water is typically used to fill the pipes, with the pressure gradually increased to a predetermined level. This test effectively identifies potential defects that could compromise the pipes' integrity. Another important quality test for ductile iron pipes is the tensile test. This involves pulling a sample of the pipe until it breaks, measuring the applied force and elongation. By doing so, the pipe's tensile strength and ductility can be determined, ensuring it can withstand required loads and stresses without deformation or failure. In addition to these tests, other quality checks include visual inspection, dimensional checks, and surface defect examinations. Visual inspection involves scrutinizing the pipes for visible defects like cracks, voids, or surface irregularities. Dimensional checks ensure the pipes meet specified dimensions and tolerances. Furthermore, ductile iron pipes often undergo corrosion resistance tests. This entails exposing the pipes to corrosive environments such as saltwater or acidic solutions to evaluate their resistance to corrosion. This is vital in determining the pipes' durability and longevity, particularly in harsh conditions. Overall, ductile iron pipes undergo rigorous testing to ensure their quality and performance. These tests guarantee that the pipes meet required standards, are safe for use, and can withstand anticipated loads and environmental conditions in their intended applications.
Q:Can ductile iron pipes be used in areas with high levels of hydrogen sulfide gas and corrosion potential?
Ductile iron pipes can be used in areas with high levels of hydrogen sulfide gas and corrosion potential, but it is important to consider certain factors before making a decision. Ductile iron pipes have a high resistance to corrosion, especially when they are properly protected with external coatings and linings. This makes them suitable for environments with moderate levels of hydrogen sulfide gas and corrosion potential. However, in areas with extremely high levels of hydrogen sulfide gas and severe corrosion potential, other materials like corrosion-resistant alloys or specially coated pipes may be more appropriate. It is crucial to conduct a thorough evaluation of the specific conditions in the area to determine the suitability of ductile iron pipes. Factors such as the concentration of hydrogen sulfide gas, the presence of other corrosive elements or chemicals, and the overall corrosiveness of the environment should be considered. Additionally, the local regulations and industry standards must be consulted to ensure compliance and safety. In conclusion, while ductile iron pipes can withstand moderate levels of hydrogen sulfide gas and corrosion potential, a comprehensive assessment of the specific conditions is necessary to determine their suitability. Consulting with experts in the field and considering alternative materials may be required in areas with high levels of hydrogen sulfide gas and severe corrosion potential.
Q:How does ductile iron pipe perform in high-velocity flow conditions?
Ductile iron pipe performs exceptionally well in high-velocity flow conditions. Due to its unique properties, including high tensile strength and impact resistance, ductile iron pipe can withstand the forces exerted by high-velocity flows without experiencing significant damage or failure. One of the key advantages of ductile iron pipe is its ability to resist the effects of water hammer, which is a sudden increase in pressure caused by the rapid deceleration or change in direction of water flow. This is particularly important in high-velocity flow conditions where the velocity of water is significantly higher than normal. Ductile iron pipes are designed to absorb and dissipate the energy generated by water hammer, preventing potential damage to the pipe and the surrounding infrastructure. Additionally, ductile iron pipe has excellent flow characteristics, allowing for smooth and efficient water transport even at high velocities. This is crucial in applications where a large volume of water needs to be transported quickly, such as in industrial processes or fire protection systems. The smooth interior surface of ductile iron pipe minimizes friction and pressure losses, ensuring that the water can flow freely and efficiently, reducing energy consumption and operating costs. Moreover, ductile iron pipe is highly resistant to corrosion, which is a common issue in high-velocity flow conditions where the water may contain aggressive chemicals or particulates. The protective lining and coating systems used in ductile iron pipes provide a barrier against corrosion, extending the lifespan of the pipe and maintaining its structural integrity. In summary, ductile iron pipe is well-suited for high-velocity flow conditions due to its ability to withstand water hammer, its excellent flow characteristics, and its resistance to corrosion. Its strength, durability, and reliable performance make it a preferred choice for various applications, ensuring efficient water transport even in demanding environments.
Q:Qianwei County ductile iron pipe which tool to use cutting convenience?
Cutting method for cutting ductile iron pipes, in order to obtain neat kerf, we should start with a direction of play saw saw to end. If the requirement of the section is not high, the direction of sawing can be changed gradually to reduce the resistance and facilitate cutting in.
Q:Can ductile iron pipes be used for industrial applications?
Yes, ductile iron pipes can be used for industrial applications. Ductile iron is a type of cast iron that has significantly improved mechanical properties, including increased ductility and strength, compared to traditional cast iron. These qualities make ductile iron pipes highly suitable for industrial applications where durability, strength, and resistance to external forces are crucial. Industrial applications often involve high-pressure water or fluid transportation, and ductile iron pipes are designed to withstand such conditions. They have excellent tensile strength, which means they can resist deformation and fractures, making them ideal for handling heavy loads and withstanding significant internal and external pressures. Additionally, ductile iron pipes have excellent corrosion resistance properties, making them highly suitable for industrial applications where exposure to harsh chemicals or corrosive substances is common. Their resistance to corrosion ensures a longer service life and reduces maintenance costs associated with pipe replacement or repairs. Furthermore, ductile iron pipes are known for their versatility and adaptability. They can be easily connected and integrated into existing infrastructure, making them a preferred choice for industrial applications. Their high strength-to-weight ratio allows for easy handling and installation, which is essential in industrial settings. In conclusion, ductile iron pipes are suitable for industrial applications due to their improved mechanical properties, corrosion resistance, and versatility. Their ability to withstand high pressures, resist deformation, and adapt to existing infrastructure make them an excellent choice for various industrial applications.
Q:What are the different methods for joining ductile iron pipe?
There are several methods for joining ductile iron pipe, each with its own advantages and limitations. One common method is mechanical joint (MJ) coupling, which involves using a rubber gasket and a set of bolts and nuts to create a watertight seal between pipe sections. This method is relatively quick and easy to install, but it requires a skilled technician to ensure proper alignment and bolt tightening to prevent leakage. Another method is flanged joint, where the pipe ends are equipped with flanges that are bolted together using gaskets to create a tight seal. This method allows for easy disassembly and reassembly of pipe sections, making it suitable for applications that require frequent maintenance or modifications. However, it is more expensive and time-consuming compared to other methods. One widely used method is push-on joint (POJ), which involves using a rubber gasket and a special lubricant to slide the pipe ends together. This method provides a reliable and watertight seal, and it is relatively quick and easy to install. However, it requires proper alignment and care to avoid damaging the gasket during assembly. Another option is restrained joint (RJ), which uses a mechanical joint coupling with additional features to resist axial forces or thrusts. This method is commonly used in applications where the pipe is subject to internal pressure, external loads, or seismic activity. It provides a secure and rigid connection but may require specialized tools and training for installation. Finally, welding is another method for joining ductile iron pipe. It involves heating the pipe ends and melting a filler metal to create a permanent bond. This method provides a strong and durable connection, but it requires skilled welders and additional time for preparation, welding, and cooling. Welding is often used for specific applications, such as joining sections of pipe with different diameters or connecting to other materials. In summary, the different methods for joining ductile iron pipe include mechanical joint coupling, flanged joint, push-on joint, restrained joint, and welding. The choice of method depends on factors such as the application requirements, installation time, maintenance needs, and budget.
Q:Are ductile iron pipes suitable for use in hydroelectric dams?
Hydroelectric dams benefit from the suitability of ductile iron pipes. Ductile iron, a more flexible and stronger type of iron compared to traditional cast iron, is an ideal option for various applications, including water transmission systems in hydroelectric dams. Ductile iron pipes possess durability and resistance to corrosion, which is essential in the continuous water exposure environment of a dam. They can endure high pressures and extreme temperatures, making them fitting for the demanding conditions within hydroelectric dams. Moreover, ductile iron pipes exhibit excellent joint integrity, guaranteeing their leak-proof and reliable performance throughout their lifespan. This aspect is crucial for maintaining the efficiency and effectiveness of a hydroelectric dam's water transmission system. Additionally, ductile iron pipes prove to be cost-effective when compared to materials like steel or concrete. With a long service life, minimal maintenance requirements, and easy availability, they present a practical choice for hydroelectric dam projects. In conclusion, ductile iron pipes are a viable option for hydroelectric dams due to their durability, corrosion resistance, high-pressure tolerance, joint integrity, and cost-effectiveness. They provide the necessary strength and flexibility to efficiently transport water within the dam, contributing to the overall success and longevity of the hydroelectric power generation system.

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