DUCTILE IRON PIPES AND PIPE FITTINGS K9 CLASS DN350

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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: Can ductile iron pipes be used for underground oil and gas pipelines?: Underground oil and gas pipelines can utilize ductile iron pipes, which offer a robust and enduring material capable of withstanding the demanding characteristics of oil and gas transportation. With its exceptional tensile strength and impact resistance, ductile iron brings a high level of suitability for subterranean applications. Additionally, these pipes exhibit resistance against external loads, a crucial attribute for underground pipelines that might experience soil movements or heavy traffic. Moreover, the easy assembly of ductile iron pipes facilitates efficient installation and maintenance procedures. Nevertheless, it is crucial to carefully consider a range of factors, including soil conditions, environmental elements, and specific project prerequisites, prior to selecting ductile iron pipes for underground oil and gas pipelines.

Q: What are the common pressure ratings for ductile iron pipes?: The common pressure ratings for ductile iron pipes typically range from 150 psi (pounds per square inch) to 350 psi.

Q: The benefits of ductile iron castings: Nodular cast iron, is a kind of high strength cast iron material developed in 50s twentieth Century, its comprehensive performance is close to the steel, it is based on its excellent performance, has been successfully used in casting complex stress, strength, toughness and wear resistance requirements of the higher parts.

Q: How to correctly measure ductile iron pipe: The outer diameter of the ball tube is measured around the outer edge of the pipe. The caliper is used to measure the inside diameter of the pipe. The length of the pipe is measured by a ruler or tape measure,

Q: How are ductile iron pipes made?: Ductile iron pipes are made using a specific manufacturing process known as centrifugal casting. This process involves pouring molten iron into a rotating mold, which is usually made of steel. The centrifugal force created by the rotation of the mold helps in distributing the molten iron evenly, ensuring the final product is of high quality. To begin the manufacturing process, a mixture of scrap iron, steel, and recycled material is melted in a furnace at extremely high temperatures. Once the molten iron reaches the desired temperature and consistency, it is ready to be cast into pipes. The rotating mold is first preheated to prevent the molten iron from cooling too quickly. The preheating process also helps in ensuring a smooth surface finish of the pipes. Next, the molten iron is poured into the rotating mold through a central sprue. As the mold spins, the molten iron is forced against the inner walls of the mold due to centrifugal force. This causes the iron to solidify rapidly, resulting in a dense, strong, and corrosion-resistant pipe. The centrifugal force also helps to remove any impurities or slag from the inner surface of the pipe, further enhancing its quality. Once the casting process is complete, the mold is allowed to cool, and the pipe is removed. The pipes are then subjected to various tests to ensure they meet the required quality standards. These tests may include checking the dimensions, mechanical properties, and surface finish of the pipes. After passing the quality tests, the ductile iron pipes are typically coated with a protective lining to prevent corrosion and extend their lifespan. This lining can be made of cement mortar, epoxy, or polyethylene, depending on the intended application of the pipes. In summary, ductile iron pipes are made through the centrifugal casting process, which involves pouring molten iron into a rotating mold. This process ensures the production of strong, corrosion-resistant pipes with a smooth surface finish.

Q: How does ductile iron pipe compare to steel pipe in terms of durability?: Ductile iron pipe is generally considered to be more durable than steel pipe. It has superior strength and durability due to its unique microstructure, which allows it to withstand higher levels of pressure, impacts, and loads. Ductile iron pipe also has better corrosion resistance properties, making it less prone to rust and deterioration compared to steel pipe. Additionally, ductile iron pipe has a longer lifespan and requires less maintenance, making it a more reliable and durable choice for various applications.

Q: Can ductile iron pipes be used in contaminated soil conditions?: Indeed, contaminated soil conditions pose no obstacle to the utilization of ductile iron pipes. Ductile iron boasts exceptional attributes such as robustness, endurance, and resistance to corrosion, rendering it appropriate for diverse soil conditions, even those tainted by chemicals or other harmful substances. The material's resistance to corrosion guarantees the pipes' ability to endure the adverse conditions and sustain their structural integrity throughout time. Nevertheless, it is crucial to take into account the nature and extent of soil contamination and seek guidance from specialists to ascertain whether supplementary protective measures or coatings are necessary to ensure the pipes' enduring efficiency.

Q: Are ductile iron pipes suitable for use in agricultural applications?: Yes, ductile iron pipes are suitable for use in agricultural applications. Ductile iron pipes are known for their high strength and durability, making them ideal for withstanding the heavy loads and pressures often found in agricultural operations. Additionally, they have excellent corrosion resistance, which is important in agricultural environments where pipes may be exposed to chemicals or fertilizers. Ductile iron pipes also have a long lifespan, reducing the need for frequent replacements and minimizing maintenance costs. Overall, their robust nature and ability to handle various agricultural demands make them a reliable choice for use in agricultural applications.

Q: What are the different types of joints available for ductile iron pipe?: Ductile iron pipes offer various types of joints, each with distinct advantages and suitability for different uses. Here are some of the most common joint options available: 1. Mechanical Joints: These joints create a watertight seal using a mechanical joint gland and rubber gasket. They are easy to install and allow for quick disassembly if needed. 2. Push-on Joints: This joint type involves compressing a rubber gasket when inserting the pipe into the fitting. It provides a reliable seal and requires no special tools for installation. 3. Restrained Joints: Designed to withstand higher internal pressures, restrained joints use a combination of mechanical or push-on joints along with additional restraints like thrust blocks or harnesses to prevent pipe separation. 4. Flanged Joints: Flanged joints connect two pipes using flanges and bolts. They are commonly used when frequent disassembly is required or when connecting to different types of pipes or equipment. 5. Welded Joints: In certain cases, ductile iron pipes can be welded together to create a strong and permanent connection. Welded joints are typically used in larger diameter pipes or specialized applications requiring high strength. When selecting the appropriate joint type for ductile iron pipes, it is essential to consider factors such as the pipe's application, pressure rating, and installation requirements.

Q: Do ductile iron pipes require special maintenance?: Yes, ductile iron pipes do require special maintenance. While ductile iron is known for its strength and durability, it is still susceptible to certain forms of corrosion. Regular maintenance is necessary to prevent corrosion and prolong the lifespan of the pipes. This maintenance typically includes periodic inspections to check for any signs of corrosion or damage, as well as cleaning and protective coating applications. Additionally, proper handling and installation techniques should be followed to ensure the integrity of the pipes. Regular maintenance and adherence to industry best practices can help prevent leaks, breaks, and other issues, ultimately saving time and money in the long run.

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