DUCTILE IRON PIPES & PIPE FITTINGS K9 CLASS DN125

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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 in areas with high levels of hydrogen sulfide gas?: Ductile iron pipes can generally be used in areas with high levels of hydrogen sulfide gas, but it is important to consider certain factors before making a decision. Hydrogen sulfide gas is corrosive and can potentially cause damage to metal pipes over time. While ductile iron is known for its durability and corrosion resistance, prolonged exposure to high levels of hydrogen sulfide gas can still lead to corrosion and deterioration. To mitigate the risks associated with hydrogen sulfide gas, it is advisable to assess the specific conditions of the area beforehand. This includes conducting a comprehensive analysis of the hydrogen sulfide gas concentration, pH levels, temperature, and other factors that may influence corrosion. Consulting with experts or engineering professionals who specialize in corrosion control can provide valuable insights and guidance. In some cases, additional measures may be necessary to protect ductile iron pipes. Coating the interior and exterior surfaces of the pipes with protective materials, such as epoxy or polyethylene, can provide an extra layer of defense against corrosion. Alternatively, cathodic protection systems can be employed to protect the pipes by applying a low voltage electrical current that mitigates the corrosion process. Ultimately, the decision to use ductile iron pipes in areas with high levels of hydrogen sulfide gas should be based on a thorough understanding of the specific conditions and implementing appropriate corrosion prevention measures. Regular monitoring and maintenance should also be conducted to ensure the pipes are functioning optimally and to address any potential issues before they escalate.

Q:Can ductile iron pipe be used for geothermal heat exchange systems?: Indeed, geothermal heat exchange systems can utilize ductile iron pipe. Renowned for its robustness and resilience, ductile iron pipe is perfectly suited to withstand the elevated temperatures and pressures typically found in such systems. Moreover, its exceptional resistance to corrosion is of utmost importance in geothermal applications, where minerals and chemicals present in the earth can induce corrosion. Additionally, the commendable thermal conductivity of ductile iron pipe facilitates efficient heat transfer within geothermal systems. In conclusion, ductile iron pipe stands as a dependable and economical option for geothermal heat exchange systems.

Q:Are ductile iron pipes suitable for use in oil refineries?: Yes, ductile iron pipes are suitable for use in oil refineries. They have excellent corrosion resistance and high tensile strength, making them ideal for transporting various fluids and gases in harsh environments such as oil refineries. Additionally, their flexibility and durability allow for easy installation and maintenance, ensuring reliable operations in refinery facilities.

Q:Why is the cast iron tube lined with cement? Under what circumstances are ductile iron pipes lined with cement, and under what circumstances do not have to be lined with cement?: Cement lining to protect water quality, reduce loss, improve the service life of the pipeline ductile, ductile iron pipes are generally lined, which the en545 standard specifies the quality of what kind of what kind of cement.

Q:Some questions about the bearing capacity of nodular cast iron pipes!: But the key is that the cast iron pipe needs centrifugal casting, especially the longer tube. Therefore, we must understand whether the production plant has this production condition, otherwise, the higher quotation may not be able to produce.

Q:How does ductile iron pipe perform in areas with high seismic activity?: Ductile iron pipe performs well in areas with high seismic activity due to its inherent flexibility and strength. Its ability to withstand ground movement and absorb seismic forces makes it a reliable choice for underground piping systems in earthquake-prone regions. Additionally, the material's high tensile strength and resilience help it resist fractures and maintain its structural integrity during seismic events, ensuring the continuous flow of water or other fluids.

Q:Ductile iron pipe joint leakage: The main reason for the leakage is that the installation is not in place, resulting in the loss of the apron. Sealed with cement or pipe head Hough section. Recommend the use of Hough section fast and convenient, and there is no menace from the rear.

Q:Are ductile iron pipes suitable for use in power plants?: Ductile iron pipes are indeed appropriate for implementation in power plants. This material, known for its strength and durability, proves capable of enduring high pressure and temperature conditions, thus rendering it an ideal conduit for various fluids like water, steam, and chemicals within power plants. Moreover, ductile iron pipes exhibit outstanding resistance to corrosion, a critical feature for power plants frequently exposed to moisture and chemicals. Furthermore, these pipes boast an extended lifespan and necessitate minimal upkeep, thereby reducing the overall operational expenditures of power plants. All in all, ductile iron pipes provide a dependable and economically viable solution for fluid transportation within power plants.

Q:How are ductile iron pipes tested for hydrostatic pressure?: Ductile iron pipes are commonly used for water and wastewater applications due to their strength and durability. To ensure the quality and reliability of these pipes, they undergo hydrostatic pressure testing. Hydrostatic pressure testing involves subjecting the ductile iron pipes to internal pressure higher than their normal operating pressure. This is done to assess their ability to withstand the maximum pressure they are expected to encounter during their service life. The testing process typically begins with the selection of a sample set of pipes from a production batch or shipment. These samples are carefully prepared by removing any surface coatings or debris that could affect the accuracy of the test results. Next, the prepared samples are placed within a specially designed test rig or test line. The test rig is equipped with all the necessary connections, valves, and gauges to control and monitor the test conditions accurately. Once the samples are secured in the test rig, water or another suitable test fluid is slowly introduced into the pipes. The pressure is then gradually increased to a predetermined level, typically exceeding the expected operating pressure by a certain factor. This elevated pressure is maintained for a specified duration, usually for several hours, to assess the pipes' structural integrity and leak resistance. During the test, the pipes are closely monitored for any signs of leakage, deformation, or failure. Skilled technicians or engineers observe the pressure gauges and visually inspect the pipes for any visible defects or abnormalities. Additionally, automated systems may be employed to continuously record and analyze the pressure readings, ensuring accurate data collection. After the specified test duration, the pressure is gradually released, and the pipes are carefully inspected for any permanent deformation or residual stress. This inspection may involve visual examination, dimensional measurements, or even non-destructive testing techniques such as ultrasonic testing or magnetic particle inspection. The test results are then evaluated against the relevant industry standards or specifications to determine the pipes' compliance with safety and performance requirements. If the pipes pass the hydrostatic pressure test, they are deemed suitable for their intended application. However, if any issues or failures are identified, further investigation, analysis, or corrective actions may be necessary before the pipes can be approved for use. Overall, hydrostatic pressure testing plays a crucial role in ensuring the quality and reliability of ductile iron pipes. By subjecting these pipes to rigorous testing procedures, manufacturers can provide customers with pipes that meet the highest standards of safety and performance.

Q:What is the expected hydraulic performance of ductile iron pipes?: Ductile iron pipes are known for their exceptional hydraulic performance, boasting a remarkably smooth inner surface that facilitates fluid flow, resulting in reduced friction losses and increased flow rates. With excellent resistance to corrosion and abrasion, these pipes demonstrate long-lasting efficacy in diverse water and wastewater applications. In addition, the high tensile strength of ductile iron pipes enables them to withstand substantial internal and external loads without any deformation or failure. Their versatility allows for usage in both above-ground and below-ground scenarios, encompassing water distribution systems, sewage and wastewater transport, industrial piping, and irrigation systems. Moreover, the flexibility and resilience of ductile iron pipes enable them to adapt to ground movement and settle without any risk of breakage. This attribute proves invaluable in areas with unstable soil conditions or seismic activity, making these pipes a dependable choice. Overall, the hydraulic performance of ductile iron pipes is characterized by efficient flow, minimal pressure losses, durability, and the capacity to withstand various external forces. These exceptional qualities establish them as a favored option for water infrastructure projects, ensuring reliable and efficient fluid transportation over a prolonged service life.

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