• 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: How do ductile iron pipes handle pressure surges in pumping stations?
Ductile iron pipes are known for their strength and durability, making them well-equipped to handle pressure surges in pumping stations. These pipes have a high resistance to impact and are designed to withstand the sudden increase in pressure that occurs during surge events. Additionally, their flexible nature allows them to absorb and distribute the force exerted by the surge, minimizing the risk of pipe failure or damage. Overall, ductile iron pipes are a reliable choice for handling pressure surges in pumping stations.
Q: How are ductile iron pipes protected against external corrosion?
Ductile iron pipes are protected against external corrosion through the application of protective coatings such as polyethylene, epoxy, or zinc. These coatings act as a barrier between the pipe and the surrounding environment, preventing contact with corrosive elements such as water, soil, or chemicals. Additionally, cathodic protection techniques, such as sacrificial anodes or impressed current systems, may also be employed to further enhance the corrosion resistance of ductile iron pipes.
Q: Can ductile iron pipe be used for water treatment plants?
Yes, ductile iron pipe can be used for water treatment plants. Ductile iron pipe is a commonly used material in the water industry due to its strength, durability, and corrosion resistance. It is suitable for various applications, including transporting water in water treatment plants. Ductile iron pipe can withstand high pressure and is well-suited for underground installations. It also has excellent resistance to corrosion from water and chemicals commonly used in water treatment processes. Additionally, ductile iron pipe is easy to install and maintain, making it a preferred choice for water treatment plants. Overall, ductile iron pipe is a reliable and cost-effective option for water transport in water treatment plants.
Q: Are ductile iron pipes resistant to chemical attacks?
Yes, ductile iron pipes are generally resistant to chemical attacks. Ductile iron is known for its high corrosion resistance, making it suitable for a wide range of applications including water and wastewater systems. Ductile iron pipes are typically lined with a protective coating such as cement mortar or epoxy to further enhance their resistance to chemical attacks. This lining acts as a barrier between the pipe material and the corrosive substances, preventing any degradation of the iron. However, it is important to note that the level of resistance can vary depending on the specific chemical being transported and the concentration and temperature of the solution. Therefore, it is always advisable to consult with experts or engineers to ensure the suitability of ductile iron pipes for specific chemical environments.
Q: Are ductile iron pipes suitable for use in acidic environments?
Ductile iron pipes are generally not suitable for use in highly acidic environments. While ductile iron is known for its strength and durability, it does have limitations when it comes to acidic conditions. Acidic environments tend to corrode and degrade ductile iron pipes over time. In acidic conditions, the acid can react with the iron in the pipe, causing corrosion and ultimately leading to pipe failure. The rate of corrosion depends on various factors such as the concentration and type of acid, temperature, and the duration of exposure. Acidic environments with pH levels below 4 or 5 can significantly accelerate the corrosion process. To overcome this limitation, other materials like stainless steel or corrosion-resistant alloys such as PVC or HDPE (high-density polyethylene) pipes are often recommended for use in acidic environments. These materials have better resistance to corrosion and can withstand the harsh conditions associated with acidic environments. However, if ductile iron pipes are used in mildly acidic conditions or if measures are taken to protect them from corrosion, they may still be suitable. Applying protective coatings or linings to the pipes can help minimize the corrosive effects of acids. It is essential to consult with experts or engineers familiar with the specific conditions and requirements of the project to determine the most suitable material for use in acidic environments.
Q: What is the maximum temperature that ductile iron pipe can handle?
The maximum temperature that ductile iron pipe can handle depends on various factors such as the specific grade of ductile iron, the duration of exposure to high temperatures, and the presence of any external factors like corrosive environments. Generally, ductile iron pipes can handle temperatures up to 400-450 degrees Fahrenheit (204-232 degrees Celsius) for short durations. However, it is important to consult the manufacturer's specifications and guidelines to determine the specific maximum temperature limits for a particular grade of ductile iron pipe. Additionally, it is recommended to consider the effects of thermal expansion, potential loss of mechanical properties, and any additional protective measures that may be required at elevated temperatures.
Q: What is the expected thrust restraint method for ductile iron pipes?
Typically, to achieve the expected thrust restraint for ductile iron pipes, mechanical joint restraints are employed. These restraints are designed to counteract the axial forces or thrust caused by the fluid pressure within the pipe. Thrust blocks, tie rods, and harness restraints are the most commonly used types of mechanical joint restraints for ductile iron pipes. Thrust blocks are concrete structures strategically placed around the pipe joints to resist the thrust forces. They are typically constructed at bends, tees, and other directional changes to prevent pipe movement. Tie rods, on the other hand, are another frequently used method of thrust restraint. These involve steel rods that are anchored to the pipe and securely fastened to an immovable structure to counter the thrust forces. Harness restraints, however, are constituted by a series of steel rods or cables that encircle the pipe and are anchored to the ground on both sides. These restraints effectively distribute the axial forces along the pipe's length, preventing movement and ensuring stability. The choice of a specific thrust restraint method for ductile iron pipes may vary depending on various factors such as pipe diameter, fluid pressure, soil conditions, and local regulations. It is vital to consult industry standards, engineering guidelines, and local authorities to determine the appropriate thrust restraint method for a particular application.
Q: What is the expected hoop stress capacity of ductile iron pipes?
The capacity for hoop stress expected in ductile iron pipes can vary depending on various factors, including the diameter, wall thickness, and material grade of the pipes. However, as a general rule, ductile iron pipes possess a high level of strength and durability, enabling them to withstand significant levels of hoop stress. Ductile iron pipes are specifically designed and manufactured to meet certain standards and requirements, such as those put forth by the American Water Works Association (AWWA) C151 and C115 standards. These standards ensure that the pipes possess the necessary strength to handle the expected loads and pressures that they will encounter throughout their lifespan. The capacity for hoop stress in ductile iron pipes primarily relies on their tensile strength. Ductile iron is a form of cast iron that has been treated to exhibit ductility, meaning it can withstand tensile stress without fracturing. This characteristic makes it suitable for applications where the pipes may encounter internal or external pressure, such as water distribution systems or sewer lines. Engineers typically perform calculations to determine the anticipated hoop stress capacity of ductile iron pipes. These calculations take into account specific pipe dimensions, material properties, and expected operating conditions. Factors such as internal pressure, external loads, and safety factors required by design standards are considered in these calculations. It is important to verify the expected hoop stress capacity of ductile iron pipes using the manufacturer's specifications and engineering calculations. Furthermore, any modifications or repairs to the pipes should be carried out by qualified professionals following industry guidelines to ensure their ongoing strength and performance.
Q: What is the expected hydraulic performance of ductile iron pipes?
The expected hydraulic performance of ductile iron pipes is generally very high. Ductile iron pipes have a smooth inner surface that promotes efficient flow of fluids, resulting in low friction losses and high flow rates. They have excellent resistance to corrosion and abrasion, ensuring long-term performance in various water and wastewater applications. Ductile iron pipes also have a high tensile strength, allowing them to withstand high internal and external loads without deformation or failure. This makes them suitable for use in both above-ground and below-ground applications, including water distribution systems, sewage and wastewater transport, industrial piping, and irrigation systems. Furthermore, ductile iron pipes have the ability to adapt to ground movement and settle without breaking, thanks to their flexibility and resilience. This makes them a reliable choice in areas with unstable soil conditions or seismic activity. Overall, the expected hydraulic performance of ductile iron pipes is characterized by efficient flow, minimal pressure losses, durability, and the ability to withstand various external forces. These qualities make them a popular choice for water infrastructure projects, ensuring reliable and efficient transportation of fluids for a long service life.
Q: Advantages and disadvantages of ductile iron pipes
Generally not used in high pressure pipe network (6MPa or more). Because the pipe is relatively bulky, the machine must be used when installing. When the water leak occurs after the test, all the pipes must be dug out, and the pipe can be hoisted to the height of the clamps. The clamps can be installed to prevent leakage.

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