DUCTILE IRON PIPES AND PIPE FITTINGS K9 DN450

DUCTILE IRON PIPES AND PIPE FITTINGS K9 DN450

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t

Supply Capability:: 30000 m.t/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 does ductile iron pipe perform in high-temperature environments?: Ductile iron pipe performs well in high-temperature environments due to its superior strength and thermal resistance. It can withstand elevated temperatures without significant deformation or structural damage, making it a reliable choice for various applications requiring high-temperature resistance.

Q: Are ductile iron pipes suitable for use in irrigation canals?: Yes, ductile iron pipes are suitable for use in irrigation canals. Ductile iron pipes are known for their strength and durability, making them an excellent choice for carrying water in irrigation systems. They have high tensile strength and can withstand the heavy loads and pressures typically encountered in irrigation canals. Additionally, ductile iron pipes have excellent corrosion resistance, making them ideal for use in environments where water quality may vary. They are also resistant to UV rays and can withstand extreme weather conditions, which is crucial for their longevity in an irrigation canal system. Furthermore, ductile iron pipes have the ability to handle high flow rates and can efficiently transport water over long distances, ensuring effective irrigation. Overall, ductile iron pipes offer numerous benefits and are a reliable and suitable choice for use in irrigation canals.

Q: What is the composition of ductile iron pipes?: Ductile iron pipes are primarily composed of iron, with small amounts of carbon, silicon, manganese, and trace elements such as sulfur and phosphorus.

Q: What's the difference between grey cast iron pipe and ductile iron pipe?: Ductile iron is close to medium carbon steel and is much cheaper. Vermicular graphite iron is the best, but grey iron is worse and white iron is the worst. Therefore, the quality of ductile iron pipe with better quality and price is superior to other cast iron pipe fittings.

Q: Can ductile iron pipe be used in areas with high groundwater levels?: Yes, ductile iron pipe can be used in areas with high groundwater levels. Ductile iron is known for its durability and corrosion resistance, making it suitable for underground applications including areas with high groundwater levels.

Q: What are the typical joint restraint requirements for ductile iron pipes under pressure?: In order to meet the joint restraint requirements for ductile iron pipes under pressure, there are two common options available: mechanical joint restraints and restrained joint systems. These restraints are essential to prevent separation or pulling apart of the pipes caused by internal pressure. A mechanical joint restraint, which is widely used, involves a series of bolts and clamps that securely hold the pipes together. These restraints are applied at each joint of the ductile iron pipes to ensure a tight and secure connection. By providing axial restraint, they prevent the pipes from separating along the pipe axis. Another option is the restrained joint system, which offers both axial and angular restraint. This system includes a specially designed joint that consists of a gasket, a restraining gland, and a series of bolts or wedges. The gasket ensures a watertight seal, while the restraining gland and bolts/wedges restrain the pipe joints, preventing separation under pressure. The specific requirements for joint restraints may vary depending on factors such as the pipe's diameter, wall thickness, and operating conditions. To determine the appropriate joint restraint system for a specific application, it is crucial to consult the manufacturer's guidelines and industry standards. Furthermore, proper installation and maintenance of the joint restraints are essential to ensure their effectiveness and longevity in restraining the pipes.

Q: How does ductile iron pipe resist internal corrosion?: Ductile iron pipe resists internal corrosion through a combination of its unique material properties and protective coatings. Firstly, ductile iron, also known as nodular cast iron, is made by adding magnesium to molten iron, which causes the graphite in the material to be nodular or spherical in shape. This results in a more flexible and elastic material compared to traditional cast iron, making it less prone to cracking or fracturing under stress. Additionally, ductile iron has a dense, microstructure with a high carbon content, which acts as a barrier to prevent corrosive elements from penetrating the pipe's surface. This inherent resistance to corrosion makes ductile iron pipe suitable for carrying various fluids such as water, sewage, and chemicals without the risk of degradation over time. Furthermore, ductile iron pipes are often internally lined with protective coatings to further enhance their resistance to corrosion. These coatings, such as cement mortar or epoxy, create a barrier between the pipe's surface and the fluid it carries, preventing direct contact and reducing the likelihood of corrosion. These linings are applied during the manufacturing process, ensuring a consistent and durable protection throughout the entire length of the pipe. In summary, ductile iron pipe resists internal corrosion due to its material composition, including the nodular graphite structure and high carbon content, as well as the application of protective coatings. This combination of factors ensures the longevity and reliability of ductile iron pipes in various applications, even in corrosive environments.

Q: What does ductile iron pipe "K" mean?: 1 、 pipe fittings are K type, T type, etc.;2 wall thickness registration symbol. For example, according to the pipe quality standards GB/T13295-K9, which is the wall thickness ofK=9* (DN/1000+0.5)

Q: Water supply pipe is ductile iron, then it's fittings and valves and other parts must be ductile iron?: Valve parts and materials do not require the same pipe material, as long as it can meet the use requirements and cost-effective.

Q: Are there any special coatings or linings available for ductile iron pipe?: Yes, there are special coatings and linings available for ductile iron pipe. These coatings and linings are designed to enhance the durability and longevity of the pipe by providing protection against corrosion, abrasion, and other external factors. Some commonly used coatings and linings for ductile iron pipe include cement mortar lining, polyethylene encasement, and epoxy coatings. These protective measures help to extend the lifespan of the ductile iron pipe and ensure reliable performance in various applications.

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