DUCTILE IRON PIPE AND PIPE FITTINGS K9 CLASS DN900

DUCTILE IRON PIPE AND PIPE FITTINGS K9 CLASS DN900

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 21 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 irrigation systems in saline soil conditions?: Ductile iron pipes, due to their durability and corrosion resistance, can be utilized for irrigation systems in saline soil conditions. These pipes are renowned for their ability to withstand various soil conditions, including saline soil, which is characterized by elevated salt levels that can lead to corrosion and material deterioration. However, ductile iron pipes possess a protective coating, such as cement mortar lining or polyethylene encasement, that provides an added layer of defense against corrosion. Consequently, they can endure the corrosive impacts of saline soil and maintain their structural integrity for an extended duration. Moreover, ductile iron pipes exhibit a high tensile strength, enabling them to resist cracks and breaks, which is crucial for irrigation systems necessitating a consistent and dependable water supply. Consequently, ductile iron pipes represent a viable option for irrigation systems operating in saline soil conditions.

Q:What is the expected deflection limit of ductile iron pipes?: The expected deflection limit of ductile iron pipes is typically around 2% of the pipe's diameter, as per industry standards.

Q:How does ductile iron pipe perform in areas with high soil corrosivity?: Ductile iron pipe performs exceptionally well in areas with high soil corrosivity due to its inherent corrosion-resistant properties. The material used in ductile iron pipes is specifically designed to withstand harsh soil conditions, including those with high levels of corrosive elements. One of the main reasons why ductile iron pipe is suitable for areas with high soil corrosivity is its protective coating. Most ductile iron pipes are coated with a layer of cement mortar or a polyethylene sleeve, which acts as a barrier between the soil and the pipe. This coating not only prevents the soil from coming into direct contact with the iron, but it also provides an additional layer of protection against corrosion. Furthermore, ductile iron itself is a highly corrosion-resistant material. It contains a higher percentage of carbon compared to traditional cast iron, which improves its strength and durability. The carbon content also forms a protective layer of graphite within the iron matrix, which acts as a natural barrier against corrosion. In areas with high soil corrosivity, ductile iron pipes have been proven to have a long service life, often exceeding 100 years. This is due to their ability to resist corrosion and maintain structural integrity even in harsh environments. Additionally, ductile iron pipes have a high resistance to external loads and can withstand the stresses associated with high soil corrosivity. Overall, ductile iron pipe is an excellent choice for areas with high soil corrosivity. Its corrosion-resistant properties, combined with protective coatings, ensure that the pipe remains durable and reliable even in the most challenging soil conditions.

Q:How do ductile iron pipes handle thermal expansion and contraction?: The exceptional ability of ductile iron pipes to handle thermal expansion and contraction is well-known. This ability stems from their distinctive composition and design, which enable them to endure temperature fluctuations without sustaining significant harm or deformation. Thermal expansion arises when a material expands as a result of increased temperature, while thermal contraction refers to the contraction that occurs when a material cools down. Ductile iron pipes effectively accommodate these temperature changes by utilizing their inherent flexibility and strength. A key factor that enables ductile iron pipes to manage thermal expansion and contraction is their high ductility, which refers to their capacity to deform without breaking. This ductility allows the pipes to absorb the forces of expansion and contraction without developing cracks or ruptures. Additionally, the composition of ductile iron pipes includes graphite nodules, which act as microcracks that can absorb stress and prevent material fracturing. This unique microstructure enhances the pipes' resistance to thermal expansion and contraction. Furthermore, ductile iron pipes are often designed with joints that allow for limited movement. These joints, such as mechanical joints or push-on joints, can accommodate pipe expansion and contraction by offering a certain level of flexibility. This helps prevent the pipes from being excessively stressed or damaged. In conclusion, ductile iron pipes are specifically engineered to effectively handle thermal expansion and contraction. Their high ductility, unique microstructure, and joint design make them a robust and dependable choice for applications where temperature variations are expected.

Q:Can ductile iron pipes be used for pressure relief systems?: Yes, ductile iron pipes can be used for pressure relief systems. Ductile iron pipes are known for their strength, durability, and ability to withstand high pressures. They are commonly used in various applications, including pressure relief systems, where they can effectively handle and dissipate excess pressure to ensure the safety and functionality of the overall system.

Q:What are the typical lengths of ductile iron pipes?: The typical lengths of ductile iron pipes range from 18 feet to 20 feet, although shorter lengths such as 10 feet or longer lengths such as 40 feet can also be found depending on specific project requirements.

Q:Do ductile iron pipes require external protection against stray electrical currents?: Ductile iron pipes indeed necessitate external safeguarding against stray electrical currents. The presence of such currents can induce corrosion in the pipes, resulting in premature failure and probable leakage. To counteract this, protective coatings or wraps are employed on the ductile iron pipes, creating a shield between the pipes and the electrical currents. This safeguarding measure guarantees the durability and dependability of the pipes, warding off expensive repairs and potential safety risks.

Q:What are the typical joint sealing requirements for ductile iron pipes?: The typical joint sealing requirements for ductile iron pipes include the use of rubber gaskets or mechanical joints. Rubber gaskets are commonly used for joint sealing in ductile iron pipes as they provide a reliable and flexible seal. These gaskets are typically made of synthetic rubber materials that are resistant to water, chemicals, and other environmental factors. Mechanical joints, on the other hand, are another common method of joint sealing in ductile iron pipes. These joints consist of a mechanical device that connects the pipes together and provides a watertight seal. Mechanical joints are typically designed to allow for some movement and flexibility, which is especially important in areas where ground movement or settlement may occur. In addition to using rubber gaskets or mechanical joints, it is also important to properly clean and prepare the pipe surfaces before making the joint. This may involve removing any dirt, debris, or old joint material from the pipe ends to ensure a proper seal. The joint should then be assembled according to the manufacturer's instructions, ensuring that the gasket or mechanical joint is correctly positioned and tightened to the recommended torque. Overall, the typical joint sealing requirements for ductile iron pipes involve the use of rubber gaskets or mechanical joints, proper cleaning and preparation of the pipe ends, and following the manufacturer's instructions for assembly. These requirements are essential for ensuring a watertight and durable joint that can withstand the pressures and environmental conditions commonly encountered in ductile iron pipe systems.

Q:What are the common methods for flow control in ductile iron pipes?: Ductile iron pipes offer various options for flow control. Among them, valves are commonly used. Valves enable the regulation of water or other fluids flowing through the pipes. They can be either manually operated or automated, depending on the system's specific needs. Flow restrictors or flow limiters represent another method for controlling flow in ductile iron pipes. These devices are installed in the pipes to reduce the flow rate and ensure that the system operates within its intended parameters. Flow restrictors are particularly beneficial in situations where flow control is necessary to prevent damage or optimize system efficiency. Pressure regulators also contribute to flow control in ductile iron pipes. By maintaining a specific pressure level within the system, these devices help prevent excessive pressure that can lead to pipe bursts or other forms of damage. Furthermore, pressure regulators aid in maintaining a consistent pressure throughout the system, ensuring predictable and controlled flow. Flow meters provide yet another means of achieving flow control. These devices are installed in the pipes to measure the rate at which fluid passes through them. By monitoring the flow rate, operators can adjust valves or other flow control devices to maintain flow within the desired range. Flow meters are especially valuable in applications where accurate flow measurement is critical, such as industrial processes or water distribution systems. In conclusion, flow control in ductile iron pipes can be achieved through the use of valves, flow restrictors, pressure regulators, and flow meters. These methods can be combined or used individually, depending on the specific requirements of the system.

Q:What are the environmental benefits of using ductile iron pipe?: There are several environmental benefits associated with using ductile iron pipe in various applications. Firstly, ductile iron is a highly durable material that can withstand harsh environmental conditions and has a long lifespan. This means that ductile iron pipes require less frequent replacements compared to other pipe materials, reducing the need for resource-intensive manufacturing processes and minimizing the disposal of old pipes. Secondly, ductile iron pipes have excellent corrosion resistance properties, which reduces the risk of leaks and pipe failures. This not only prevents potential water contamination but also minimizes the wastage of water resources. Additionally, ductile iron is a recyclable material. At the end of its useful life, ductile iron pipes can be melted down and used to manufacture new products, reducing the demand for virgin materials and conserving natural resources. Furthermore, the manufacturing process of ductile iron pipe has improved significantly over the years, resulting in reduced energy consumption and emissions. Today, many manufacturers use energy-efficient technologies and practices to produce ductile iron pipes, contributing to a lower carbon footprint and reduced air pollution. Lastly, ductile iron pipes have a smooth internal surface that minimizes friction and allows for efficient water flow. This can lead to energy savings in pumping and distribution systems, as less energy is required to transport water through the pipeline network. Overall, using ductile iron pipe can have a positive impact on the environment by reducing waste, conserving resources, minimizing pollution, and improving energy efficiency in water distribution systems.

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