DUCTILE IRON PIPES AND PIPE FITTINGS k8 CLASS DN1500

DUCTILE IRON PIPES AND PIPE FITTINGS k8 CLASS DN1500

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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: Are ductile iron pipes prone to external corrosion?: External corrosion is not typically a concern for ductile iron pipes. This is because the material itself has protective properties. Ductile iron pipes are composed of a durable and strong material with a significant amount of graphite. The graphite serves as a natural barrier against external corrosion, effectively preventing rust and oxidation. Furthermore, ductile iron pipes are often coated with a layer of protection, such as cement mortar or polyethylene, to further enhance their resistance to corrosion. These coatings provide an additional safeguard, preventing contact between the pipe and any corrosive substances in the environment. It is important to note, however, that localized corrosion may still occur under certain conditions. Factors such as soil composition, moisture levels, and the presence of specific chemicals can potentially lead to the corrosion of ductile iron pipes in specific areas. Therefore, regular inspections and proper maintenance are necessary to promptly identify and address any potential corrosion concerns. In conclusion, ductile iron pipes are generally highly resistant to external corrosion. Nonetheless, like any other material, they require appropriate care and maintenance to ensure their long-term durability and reliability.

Q: What are the different pressure classes available for ductile iron pipe?: The different pressure classes available for ductile iron pipe include Class 100, Class 150, Class 200, Class 250, Class 300, Class 350, and Class 400.

Q: What are the common methods for leak detection in ductile iron pipes?: Professionals in the field commonly utilize various techniques to detect and locate leaks in ductile iron pipes. These methods play a crucial role in timely leak identification. 1. Acoustic Leak Detection: By employing specialized equipment, professionals listen for the sound of water escaping from the pipe. This equipment detects the leak's sound and aids in pinpointing its exact location. This technique is effective for both pressurized and non-pressurized pipes. 2. Visual Inspection: Physically inspecting the pipe system for visible signs of leaks, such as water stains, wet spots, or puddles, constitutes visual inspection. This relatively straightforward method proves effective in detecting visible leaks in accessible areas. 3. Pressure Testing: During installation or maintenance, pressure testing involves pressurizing the pipe system and monitoring pressure drops. A decrease in pressure signifies the presence of a leak. This method is particularly useful for identifying leaks in inaccessible areas. 4. Infrared Thermography: Infrared cameras detect leaks by measuring temperature variations. The camera can identify temperature differences caused by water escaping from a pipe. This technique is especially efficient in identifying concealed leaks behind walls or underground. 5. Tracer Gas Testing: Tracer gas testing entails injecting a specific gas, such as helium or hydrogen, into the pipe system. In the event of a leak, the gas escapes and can be detected using specialized equipment. This highly sensitive method can locate even minute leaks. 6. Soil Gas Monitoring: Monitoring the soil surrounding the pipe allows professionals to detect gases emitted by leaking water. Analyzing the composition of the soil gas aids in determining the leak's location. It is essential to consider the specific circumstances, such as pipe system size, accessibility, and leak severity when selecting a method. Combining multiple techniques may be necessary to ensure accurate and comprehensive leak detection.

Q: What is the average weight of ductile iron pipes?: The average weight of ductile iron pipes varies depending on their size and specifications. Generally, ductile iron pipes can range in weight from a few hundred pounds to several tons per linear foot.

Q: How does ductile iron pipe perform in areas with high groundwater levels?: Ductile iron pipe performs well in areas with high groundwater levels. Its durable and corrosion-resistant properties make it suitable for such environments. The pipe's strength and flexibility allow it to withstand the pressure exerted by the groundwater and adapt to any ground movement without compromising its structural integrity. Additionally, ductile iron pipe's protective linings further enhance its resistance to corrosion, ensuring long-term performance in high groundwater areas.

Q: What is the expected surge pressure rating of ductile iron pipes?: The expected surge pressure rating of ductile iron pipes can vary depending on factors such as pipe diameter, wall thickness, and application. However, generally speaking, ductile iron pipes have a surge pressure rating that ranges from 350 psi to 500 psi.

Q: What is the difference between a cast iron pipe and a ductile iron pipe?: The ball compressive strength of ductile iron pipe is much higher than that of cast iron pipes, buried in the ground, the car is not easy to be crushed.

Q: What does "K8" mean in ductile iron pipe grades?: 1 ductile iron pipe grade K8, on behalf of the ductile iron 8 grades, K refers to the wall thickness coefficient, the higher the grade, the greater the pressure, the lower the level, the less pressure to bear.2 wall thickness calculation formula: e=K (0.5+0.001DN).

Q: How are ductile iron pipes inspected for quality control?: Ductile iron pipes are inspected for quality control through a series of rigorous tests and inspections to ensure their compliance with industry standards. One of the most common methods used is visual inspection, where trained inspectors examine the pipes for any visible defects such as cracks, pits, or surface irregularities. This helps in identifying any visual defects that may compromise the overall quality of the pipes. In addition to visual inspection, another crucial quality control measure is dimensional inspection. This involves measuring the dimensions of the pipes, such as diameter, wall thickness, and length, using specialized tools and equipment. By comparing these measurements against the specified tolerances, any deviations can be identified, and necessary corrective actions can be taken. Another important quality control step is hydrostatic pressure testing. In this test, the pipes are subjected to internal pressure that is higher than their intended operating pressure. This ensures that the pipes can withstand the required pressure without any leakage or failure. The test involves filling the pipes with water and gradually increasing the pressure, while closely monitoring for any signs of leakage or deformation. Furthermore, ductile iron pipes undergo various mechanical tests, such as tensile strength testing and impact testing, to evaluate their mechanical properties. These tests involve applying controlled forces or impacts to the pipes and measuring their response. By doing so, the strength, toughness, and durability of the pipes can be assessed, ensuring they meet the necessary requirements. Lastly, metallurgical examinations are conducted to analyze the microstructure of the ductile iron pipes. This involves taking samples from the pipes and using microscopy techniques to examine the grain structure, phase distribution, and any potential defects at a microscopic level. This helps in identifying any issues that may not be visible to the naked eye but could affect the overall quality of the pipes. Overall, the inspection process for ductile iron pipes involves a combination of visual, dimensional, hydrostatic, mechanical, and metallurgical tests. These quality control measures help ensure that the pipes meet the required standards, providing reliable and durable infrastructure for various applications.

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.

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