DUCTILE IRON PIPES AND PIPE FITTINGS 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: What is the maximum operating pressure for ductile iron pipes?: The maximum operating pressure of ductile iron pipes may vary based on factors like pipe diameter, wall thickness, and the specific usage. Nonetheless, typically, ductile iron pipes are engineered to endure pressures of up to 350 psi (pounds per square inch), and occasionally even higher. It is worth highlighting that to ascertain the precise maximum operating pressure for a specific ductile iron pipe system, one should refer to local regulations, engineering standards, and manufacturer specifications.

Q: What's the difference between cast iron pipe and steel pipe?: Steel pipe is not only used to transport fluid and powder solid, exchange heat energy, and manufacture mechanical parts and containers, but also is an economic steel. It can reduce weight and save 20 to 40% of metal by using steel pipe to make building structure, network frame, prop and mechanical support. Moreover, it can realize factory mechanization construction. Using steel pipe to manufacture road bridge can not only save steel, simplify construction, but also greatly reduce the area of coating protective layer, save investment and maintenance cost.

Q: How do ductile iron pipes perform in cold weather conditions?: The exceptional performance of ductile iron pipes in cold weather conditions is well-known. Unlike cast iron or PVC, ductile iron exhibits remarkable resistance to low temperatures. This resistance is primarily attributed to its unique microstructure, which enables it to maintain its structural integrity even in extreme weather conditions. In freezing temperatures, ductile iron pipes demonstrate a low coefficient of thermal expansion, meaning they do not contract or expand significantly with changes in temperature. This characteristic ensures their stability and prevents cracking or bursting. Additionally, the high impact resistance of ductile iron further enhances its ability to withstand the stress imposed by cold weather conditions. Moreover, ductile iron pipes are equipped with a protective lining, typically composed of cement mortar or epoxy. This lining acts as an additional barrier against the effects of cold weather, preventing the formation of ice on the inner surface of the pipes. Consequently, the risk of blockages or reduced flow capacity is greatly reduced. In conclusion, ductile iron pipes are a reliable choice for cold weather conditions. Their durability, low thermal expansion, and protective lining make them highly resistant to the challenges posed by freezing temperatures. Whether used for water supply, sewer systems, or other applications, ductile iron pipes have consistently proven their effectiveness even in the harshest winter climates.

Q: Can ductile iron pipe be used for potable water systems?: Yes, ductile iron pipe can be used for potable water systems. Ductile iron is a type of cast iron that is known for its strength, durability, and ability to withstand high pressure. It is also corrosion-resistant, making it suitable for use in water distribution systems. Ductile iron pipe is commonly used in potable water systems due to its longevity and low maintenance requirements. Additionally, it is approved by various standards organizations, such as the American Water Works Association (AWWA), for use in potable water applications. However, it is important to ensure that the ductile iron pipe used for potable water systems is manufactured and installed according to the appropriate standards and regulations to ensure the safety and quality of the water supply.

Q: Can ductile iron pipes be used for stormwater management systems?: Yes, ductile iron pipes can be used for stormwater management systems. Ductile iron pipes are known for their strength, durability, and corrosion resistance, making them suitable for handling stormwater runoff. They can effectively transport large volumes of water and withstand the pressure and impact associated with stormwater management.

Q: Are ductile iron pipes suitable for underground river crossings?: Indeed, underground river crossings can be facilitated by the use of ductile iron pipes. Ductile iron, being a robust and long-lasting material, can endure the external stresses and burdens encountered in such crossings. With its superb tensile strength, impact resistance, and durability, ductile iron is exceptionally well-suited for underground applications where the pipes may face elevated water pressure, ground displacement, or various environmental influences. Furthermore, ductile iron pipes possess an extended lifespan and are impervious to corrosion, a vital attribute when dealing with water crossings. Their capacity to withstand these circumstances renders them a dependable choice for underground river crossings.

Q: Luo what effect of ductile cast iron: Chromium can improve the hardness, strength and wear resistance of nodular iron, and increase bainite in bainite ductile iron.

Q: What is the weight of ductile iron pipe compared to other pipe materials?: Compared to other pipe materials, ductile iron pipe typically carries more weight. The weight of the pipe may differ depending on its size and thickness, yet in general, ductile iron pipe is more compact and has a greater weight per unit length than materials such as PVC, HDPE, or steel. The main reason for this increased weight is the composition of ductile iron pipe, which consists of iron and carbon, rendering it a robust and resilient choice for a range of piping purposes.

Q: What are the different types of linings available for ductile iron pipe?: Ductile iron pipes offer various linings with distinct advantages and applications. 1. Cement mortar lining: The most commonly used lining for ductile iron pipes is cement mortar. It involves applying a layer of cement mortar to the pipe's interior surface. This lining excels in resisting corrosion and chemical attacks, making it suitable for potable water distribution, wastewater conveyance, and industrial pipelines. Additionally, it improves flow efficiency by reducing friction and turbulence within the pipe. 2. Polyethylene lining: Ductile iron pipes often utilize polyethylene linings when corrosion resistance is a primary concern. This lining consists of a layer of high-density polyethylene (HDPE), either extruded or sprayed onto the inner surface of the pipe. Polyethylene lining provides exceptional resistance to corrosion, abrasion, and chemical attacks, making it ideal for transporting aggressive fluids such as saltwater, chemicals, or industrial waste. 3. Polyurethane lining: For applications requiring protection against abrasive wear, polyurethane linings are commonly employed in ductile iron pipes. This lining is created by spraying or pouring a layer of polyurethane onto the inner surface of the pipe. Polyurethane lining offers excellent resistance to abrasion, impact, and chemical attacks. It is suitable for conveying abrasive slurries, mining applications, and other high-wear environments. 4. Epoxy lining: To safeguard against corrosion and chemical attacks, epoxy linings are applied to ductile iron pipes. This lining is typically formed by applying a layer of epoxy resin to the pipe's inner surface using centrifugal casting or electrostatic spraying. Epoxy lining demonstrates outstanding adhesion and corrosion resistance, making it suitable for various applications like potable water distribution, wastewater treatment, and industrial pipelines. 5. Zinc lining: Ductile iron pipes employ zinc linings to provide cathodic protection against corrosion. This lining involves applying a layer of zinc to the pipe's inner surface through hot-dip galvanizing or electroplating. Zinc lining acts as a sacrificial anode, corroding preferentially to the iron pipe and shielding it from corrosion. It is commonly used in highly corrosive environments like seawater or acidic soils. Ultimately, the selection of a lining for ductile iron pipes relies on the specific requirements of the application, including the transported fluid, desired corrosion resistance, and potential for abrasive wear. Seeking guidance from industry experts and considering factors like cost, longevity, and maintenance requirements aids in determining the most suitable lining option for a particular project.

Q: Can ductile iron pipes be used in coastal or marine environments?: Yes, ductile iron pipes can be used in coastal or marine environments. Ductile iron has high corrosion resistance and can withstand the harsh conditions found in these areas, including exposure to saltwater and moisture. Additionally, its strength and durability make it suitable for withstanding the impacts of waves and tides. Proper coatings and cathodic protection can further enhance the longevity of ductile iron pipes in coastal or marine environments.

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