DUCTILE IRON PIPES AND PIPE FITTINGS DN900

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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: Are ductile iron pipes suitable for installation in areas with high groundwater table?: Indeed, areas with a high groundwater table are suitable for the installation of ductile iron pipes. These pipes are renowned for their exceptional strength and durability, rendering them perfect for underground installations. They possess the ability to endure the external pressure exerted by groundwater without any deformation or collapse. In addition, their outstanding resistance to corrosion shields them from the potentially harmful impact of groundwater. Consequently, ductile iron pipes can be confidently utilized in areas with a high groundwater table, ensuring the establishment of dependable and enduring water supply infrastructure.

Q: What are the common pressure ratings for ductile iron pipes?: The pressure ratings for ductile iron pipes can vary depending on the application and industry standards. However, the most commonly used pressure ratings are Class 150, Class 200, Class 250, and Class 350. For low-pressure applications, Class 150 ductile iron pipes are typically used. These pipes have a working pressure of up to 150 psi and are commonly used for water distribution systems, irrigation, and gravity flow sewer systems. For applications requiring slightly higher pressure, such as industrial water supply and fire protection systems, Class 200 ductile iron pipes are used. These pipes have a working pressure of up to 200 psi. For more demanding applications, Class 250 ductile iron pipes are suitable. These pipes have a working pressure of up to 250 psi and are used for high-pressure water supply systems, power plants, and municipal water distribution networks. For heavy-duty applications, such as industrial water supply and oil and gas pipelines, Class 350 ductile iron pipes are used. These pipes have the highest working pressure rating, with a maximum pressure of up to 350 psi. It is important to note that these pressure ratings are general guidelines and can vary depending on the manufacturer and product specifications. Consulting industry standards and guidelines, as well as working with qualified engineers and professionals, is crucial to ensure the correct pressure rating is selected for a specific ductile iron pipe application.

Q: What are the common methods for leak detection in ductile iron pipes?: Some common methods for leak detection in ductile iron pipes include visual inspection, acoustic leak detection, pressure testing, and tracer gas leak detection. Visual inspection involves physically inspecting the pipes for any visible signs of leaks, such as water stains or wet spots. Acoustic leak detection uses specialized equipment to listen for sounds of leaking water within the pipes. Pressure testing involves pressurizing the pipes to a certain level and checking for any drop in pressure, which could indicate a leak. Tracer gas leak detection involves injecting a gas, such as helium or hydrogen, into the pipes and using a gas detector to locate any escaping gas, which would indicate a leak.

Q: Can ductile iron pipe be used for both water and wastewater applications?: Yes, ductile iron pipe can be used for both water and wastewater applications. Ductile iron is a type of iron that has been treated with small amounts of magnesium to create a more flexible and durable material. This makes it suitable for transporting both water and wastewater. Ductile iron pipes are known for their high strength and resistance to corrosion, making them ideal for underground applications. They can handle the high pressures and varying flow rates associated with water distribution systems, as well as the corrosive nature of wastewater. Additionally, ductile iron pipes have a longer lifespan compared to other materials commonly used in water and wastewater applications, such as PVC or concrete. Therefore, they are often chosen for projects that require a reliable and long-lasting pipe material for both water and wastewater transport.

Q: Are ductile iron pipes resistant to seismic events?: Generally, ductile iron pipes exhibit resistance to seismic events. Ductile iron, a form of cast iron known for its strength and durability, can withstand external forces, including those induced by seismic events like earthquakes. The design of ductile iron pipes allows for flexibility, enabling them to absorb and dissipate energy from seismic waves. This flexibility ensures the pipes remain intact despite ground movements and vibrations, preventing any breakage or cracking. Moreover, the joints of these pipes are designed to offer some level of flexibility, further enhancing their ability to withstand seismic events. Furthermore, the construction of ductile iron pipes involves thick walls, providing them with exceptional structural integrity. This strength reduces their susceptibility to damage during seismic events and ensures a consistent flow of fluids, such as water, even in extreme conditions. Nonetheless, it is crucial to recognize that the resistance of ductile iron pipes to seismic events can depend on various factors. These factors include the magnitude and proximity of the earthquake, the quality of installation and maintenance, and the specific design considerations for the pipeline system. Consequently, it is vital to adhere to proper engineering and construction practices to optimize the resilience of ductile iron pipes in areas prone to seismic activity.

Q: What are the different coatings available for ductile iron pipe?: Ductile iron pipes offer a range of coating options, each with their own advantages and protective qualities for different uses. Some commonly utilized coatings are as follows: 1. Cement Mortar Lining: By applying a layer of cement mortar to the pipe's interior surface, this coating provides excellent resistance against corrosion and abrasion. It is ideal for transporting water and sewage. 2. Bituminous Coating: Consisting of asphalt or coal tar pitch applied to the pipe surface, bituminous coatings offer effective protection against corrosion. They are commonly used for underground pipes in water and wastewater systems. 3. Fusion-Bonded Epoxy (FBE) Coating: FBE coatings are created by electrostatically applying an epoxy powder layer to the pipe surface, which is then cured at high temperatures. This coating offers exceptional corrosion resistance and is suitable for harsh environments and corrosive substances. 4. Polyurethane Coating: Polyurethane coatings provide excellent resistance against abrasion, impact, and corrosion. They are often used for pipes exposed to abrasive materials or requiring additional protection against external damage. 5. Zinc Coating: Also known as galvanized coatings, zinc coatings involve applying a layer of zinc to the pipe's surface. This coating offers excellent corrosion protection, making it suitable for pipes exposed to moisture and aggressive environments. 6. Polyethylene Encasement: Polyethylene encasement involves wrapping the pipe with a layer of polyethylene film or tape. This coating acts as a physical barrier against corrosion and is commonly used in conjunction with other coatings for added protection. To determine the most appropriate coating for ductile iron pipes, it is crucial to consider the specific requirements of the application, such as the type of fluid being transported and the environmental conditions.

Q: Why does the cast iron pipe always run off when testing?: The pipeline is installed, straight section of each pipe will be added pier, concrete pipe, elbow, three links should also have concrete pier, specific installation method according to GB Atlas 03SS515, and the straight pipe to soil, pipeline interface will be exposed, easy to check.

Q: What is the external coating used in ductile iron pipes?: The external coating used in ductile iron pipes is typically made of a protective material such as zinc or asphalt. These coatings are applied to the surface of the pipe to provide corrosion resistance and protect the iron from the surrounding environment. Zinc coatings, such as hot-dip galvanizing, are commonly used due to their excellent corrosion resistance properties. Asphalt coatings, on the other hand, provide a durable and flexible barrier against corrosion and abrasion. The choice of coating depends on factors such as the intended application, environmental conditions, and the specific requirements of the project.

Q: What are the different lining materials available for ductile iron pipe?: Some of the different lining materials available for ductile iron pipe include cement mortar lining, polyurethane lining, polyethylene lining, and epoxy lining. These linings help to protect the pipe from corrosion and extend its lifespan.

Q: Can ductile iron pipes be used in coastal or marine environments?: Ductile iron pipes are applicable for coastal or marine environments. This type of cast iron has been treated with magnesium to enhance its strength, ductility, and resistance to corrosion. As a result, it can be used in environments with high moisture levels, like coastal or marine areas. Coastal and marine environments are characterized by their high saltwater levels, which can lead to metal pipe corrosion. However, ductile iron pipes possess an excellent resistance to corrosion thanks to their protective coating. This coating acts as a barrier between the pipe and the corrosive elements present in saltwater, preventing rust formation and prolonging the pipes' lifespan. Moreover, ductile iron pipes can withstand the high pressures and stresses associated with coastal and marine applications. They possess high tensile strength, enabling them to support the weight of soil, rocks, and other materials that may be present in these environments. Furthermore, ductile iron pipes are resilient to damage caused by external forces like waves or debris, making them a dependable choice for coastal or marine projects. In conclusion, ductile iron pipes are a suitable option for coastal or marine environments due to their corrosion resistance, high tensile strength, and durability. They can reliably transport water or other fluids in these challenging environments while maintaining their structural integrity for an extended period.

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