DUCTILE IRON PIPES AND PIPE FITTINGS K9 CLASS DN800

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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 pipe be used for directional drilling?: Indeed, it is possible to utilize ductile iron pipe for directional drilling. This method involves the installation of pipes, cables, and conduits beneath the ground in a curved or horizontal trajectory. Ductile iron pipes are renowned for their exceptional strength and flexibility, rendering them apt for this technique. They can be effortlessly bent and maneuvered while drilling, thereby enabling the installation of pipelines in demanding terrains and the traversing of obstacles such as rivers, highways, and buildings. Moreover, the corrosion resistance of ductile iron pipes is superb, thereby ensuring their durability and reliability for directional drilling endeavors.

Q:What's the function of the cement mortar lining of ductile iron pipes?: Active protection is superior to barrier coating, cement mortar lining, and a stable hydroxide film formed on the surface of ductile iron and steel pipe to form a protective layer. This kind of protective coating has excellent antiseptic properties because they spontaneously protect themselves even in discontinuous linings. A polymer in sharp contrast, such as an epoxy lining, is also barrier coating, but only if 100% is applied without leakage. Any interruption or leakage will cause corrosion.It has been documented that cement mortar and cement mortar have been applied to the field of water transportation and can meet the water quality standards for a long time. Some standards still apply to the world. Cement mortar does not support microbial growth. In the case of corrosive water or low flow rate (prolonged stagnation), it is better to use cement mortar lined pipes because it can maintain high pH values in the pipe. This does not cause health problems and can be prevented by very simple sealed coating methods. The natural characteristics of the sealing coating provide the best protection for the inner wall of the pipe, while ensuring that all the water quality indexes meet the quality requirements, low cost and high efficiency.

Q:Can ductile iron pipes be used for fire protection systems?: Fire protection systems can utilize ductile iron pipes. Ductile iron, a form of cast iron, possesses both strength and flexibility, making it suitable for various applications, including fire protection systems. It boasts excellent mechanical properties, such as high tensile strength and impact resistance, which are essential for withstanding the pressures and stresses that can arise during fire suppression efforts. Ductile iron pipes are renowned for their durability and long lifespan, which is crucial for reliable and functional fire protection systems. They have a longer lifespan compared to materials like PVC or galvanized steel and are less susceptible to corrosion. This is particularly important for fire protection systems, as they must remain operational even after extended periods of inactivity. Additionally, ductile iron pipes exhibit exceptional fire resistance. They can withstand high temperatures without compromising their structural integrity, ensuring the fire protection system remains intact and functional during fire emergencies. This is pivotal for ensuring the safety of occupants and minimizing property damage. Furthermore, ductile iron pipes are compatible with a wide range of fittings, valves, and accessories commonly used in fire protection systems. This facilitates easy installation and integration into existing fire suppression networks. In conclusion, ductile iron pipes are a reliable and suitable choice for fire protection systems due to their strength, durability, fire resistance, and compatibility with other system components.

Q:DN300 what's the price of the ductile iron pipe / the weight and the price of one meter?: Graphite is exist in spherical form, usually graphite size is 6-7, casting spheroidization grade control requirements for 1-3 quality (spheroidization rate greater than 80%), so the mechanical properties of the material itself has been improved, has the essence of iron, steel performance.

Q:Are ductile iron pipes suitable for high-temperature applications?: Ductile iron pipes are generally not suitable for high-temperature applications. While ductile iron is known for its strength and durability, it has limitations when it comes to high temperatures. Ductile iron pipes are typically rated for a maximum operating temperature of around 250-300 degrees Fahrenheit (120-150 degrees Celsius). At higher temperatures, ductile iron pipes can experience thermal expansion, which may lead to cracking or distortion. This can compromise the structural integrity of the pipe and potentially cause leaks or failures. Additionally, ductile iron is susceptible to oxidation at elevated temperatures, which can further degrade the pipe's performance over time. For high-temperature applications, it is generally recommended to use materials specifically designed for such conditions, such as stainless steel or high-temperature alloys. These materials offer better resistance to thermal expansion, oxidation, and other factors associated with high temperatures.

Q:How are ductile iron pipes restrained against axial thrust forces?: Axial thrust forces are effectively restrained in ductile iron pipes by utilizing both mechanical restraints and soil resistance. A commonly employed method involves the use of thrust blocks, which are concrete structures constructed at bends, tees, and other directional changes in the pipeline. These blocks are specifically designed to withstand axial forces and prevent any shifting or movement of the pipes caused by the pressure exerted by the flowing fluid. Furthermore, additional support and prevention of axial movement are achieved through the implementation of mechanical restraints, such as pipe restraints, thrust collars, and anchor blocks. Pipe restraints are devices installed around the pipe and connected to adjacent structures, such as walls or concrete collars, in order to prevent any sort of movement. Thrust collars, on the other hand, are utilized to absorb and distribute the thrust forces generated by the flowing fluid. These collars, typically made of ductile iron or steel, are securely fastened around the pipe to counteract axial movement. Moreover, soil resistance plays a crucial role in restraining axial thrust forces. The weight of the soil surrounding the pipe creates frictional resistance, which effectively counteracts the axial forces. In order to ensure effective soil resistance, it is vital to properly backfill the trench, compact the soil, and adequately embed the pipe in the soil. In conclusion, a comprehensive approach involving the use of mechanical restraints such as thrust blocks, pipe restraints, and thrust collars, along with the soil resistance provided by proper trench backfilling and compaction, is employed to restrain axial thrust forces in ductile iron pipes. This approach guarantees the secure placement of the pipes and their ability to withstand the axial forces exerted by the flowing fluid.

Q:Can ductile iron pipes be used for underground storage tanks?: No, ductile iron pipes are not suitable for underground storage tanks. Underground storage tanks usually require special materials that have corrosion resistance and can withstand the pressure and environmental conditions.

Q:Do ductile iron pipes require external coatings or wraps?: Yes, ductile iron pipes typically require external coatings or wraps for protection against corrosion. While ductile iron is known for its strength and durability, it is still susceptible to corrosion over time when exposed to certain environmental conditions. External coatings or wraps provide an additional layer of protection to the pipes, helping to prolong their lifespan and maintain their structural integrity. These coatings can vary and may include materials such as epoxy, polyethylene, or zinc, which act as a barrier between the pipe surface and corrosive elements in the surrounding environment. Additionally, wraps made of materials like polyethylene or polypropylene can also be used to provide mechanical protection against external factors such as impact or abrasion. Therefore, it is generally recommended to apply external coatings or wraps to ductile iron pipes to enhance their resistance to corrosion and ensure their long-term performance.

Q:Are there any specific standards or specifications for ductile iron pipes?: Yes, there are specific standards and specifications for ductile iron pipes. The most commonly used standards for ductile iron pipes are set by the American Water Works Association (AWWA) and the International Organization for Standardization (ISO). The AWWA standard for ductile iron pipes is known as AWWA C151. This standard covers the design, manufacturing, testing, installation, and maintenance requirements for ductile iron pipes used in water and wastewater applications. It specifies the materials, dimensions, and mechanical properties of the pipes, as well as the required coatings and linings. Similarly, the ISO standard for ductile iron pipes is ISO 2531. This standard provides guidelines for the design, manufacturing, testing, and installation of ductile iron pipes for water and wastewater systems. It covers various aspects such as dimensions, mechanical properties, coatings, and linings. In addition to these two widely recognized standards, there may be other regional or national standards specific to certain countries or regions. These standards often align with the AWWA and ISO standards or may have additional requirements specific to local conditions or regulations. Compliance with these standards ensures that ductile iron pipes meet the necessary quality and performance requirements. It also facilitates the interoperability and compatibility of ductile iron pipes across different systems and countries, enabling reliable and efficient water distribution and wastewater management.

Q:What is the expected sound attenuation of ductile iron pipes?: The expected sound attenuation of ductile iron pipes can vary depending on various factors such as pipe diameter, thickness, and the surrounding environment. However, ductile iron pipes generally provide good sound attenuation due to their dense and heavy construction, which helps to minimize the transmission of sound waves.

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