• DUCTILE  IRON PIPES  AND PIPE FITTINGS K8 CLASS DN1000 System 1
DUCTILE  IRON PIPES  AND PIPE FITTINGS K8 CLASS DN1000

DUCTILE IRON PIPES AND PIPE FITTINGS K8 CLASS DN1000

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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:How are ductile iron pipes protected against external damage?
Various protective measures are employed to shield ductile iron pipes from external damage. One commonly used method entails applying a protective coating to the pipe's outer surface. This coating acts as a barrier, preventing direct contact between the pipe and corrosive elements in the surrounding environment. Materials like epoxy, polyurethane, or zinc, which exhibit excellent resistance against corrosion, abrasion, and chemical attacks, can be utilized for this purpose. Furthermore, an additional layer of protection can be provided by encasing ductile iron pipes in a concrete or cement mortar lining. This lining not only reduces the likelihood of physical damage caused by external impacts or soil movement but also enhances the pipe's hydraulic performance by minimizing friction and maintaining a smooth flow of fluids. In addition, proper bedding and backfilling techniques are employed during the installation of ductile iron pipes. This involves using appropriate materials such as sand or gravel to support and stabilize the pipe, thereby minimizing the risk of external damage resulting from uneven ground settlement or heavy loads. Compacting the backfill material adequately is vital to ensure the long-term integrity and stability of the pipe. Regular inspection and maintenance are also crucial for safeguarding ductile iron pipes against external damage. Routine inspections can identify any signs of corrosion, coating deterioration, or physical harm, enabling timely repairs or replacement before significant issues arise. Additionally, employing proper cathodic protection systems can counteract electrochemical reactions occurring on the pipe's surface, preventing corrosion by applying an electric current. To summarize, the protection of ductile iron pipes against external damage encompasses the application of protective coatings, concrete or cement mortar linings, appropriate bedding and backfilling techniques, and regular inspections and maintenance. These measures collectively ensure the durability, longevity, and dependable performance of ductile iron pipes in various environments and applications.
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:How to analyze and judge the quality of ductile iron pipe
On the quality of single pipe can analyze it from the surface is sand type and water cooled pipes, K8 pipe is different from Shanxi root nature is that the proportion of grade K9 cement and cast iron pipe and the K8 pipe are different, there is no national standard and non standard, no K8 tube, only is the production plant in order to obtain more profits, the dealer is not up to the national standard K9 grade pipe called K8 grade ductile pipe, K9 pipe cement weighs about 1/5 weight of the pipe, but is played in the role of anti-corrosion, the so-called K8 class water mud proportion some manufacturers terrifying 3/4 or 3/5, as the water supply pipe 3/5 or no personally think that two of the proportion of the tube is no problem
Q:Are ductile iron pipes suitable for installation in areas with high groundwater contamination and soil erosion?
Areas with high groundwater contamination and soil erosion are typically well-suited for the installation of ductile iron pipes. This is due to the fact that ductile iron pipes are renowned for their durability, strength, and corrosion resistance. They exhibit exceptional resistance to acidic and alkaline soils, rendering them appropriate for regions with elevated levels of groundwater contamination. Moreover, the robust construction of ductile iron pipes grants them a formidable resistance to soil erosion. They are engineered to endure a range of external forces, including the pressure exerted by the surrounding soil and the potential movement resulting from erosion. Consequently, they are a dependable choice for installation in areas prone to soil erosion. Nonetheless, it is vital to acknowledge that while ductile iron pipes can withstand high levels of groundwater contamination and soil erosion, the implementation of proper installation techniques and maintenance practices is crucial to ensure their longevity and optimal performance. Regular inspections, meticulous backfilling, and the application of suitable protective coatings should be employed to maximize the lifespan of the pipes. To sum up, ductile iron pipes are generally well-suited for installation in areas characterized by high groundwater contamination and soil erosion. Their durability, strength, resistance to corrosion, and high resistance to soil erosion establish them as a reliable choice for such environments. However, adhering to proper installation and maintenance practices is imperative to guarantee their longevity and optimal performance.
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:What is the expected fire resistance of ductile iron pipes?
The fire resistance of ductile iron pipes can vary based on factors such as pipe wall thickness, installation quality, and surrounding conditions. However, in general, ductile iron pipes exhibit high fire resistance due to their durable and heat-resistant composition. Ductile iron is created by adding a small amount of magnesium to cast iron, which enhances its strength and flexibility. This results in ductile iron pipes being less prone to cracking or breaking under high temperatures compared to materials like PVC or HDPE pipes. Regarding fire resistance, ductile iron pipes can endure high temperatures for a prolonged period without significant structural damage. They have undergone testing and have been proven to maintain their integrity in fire situations for 2-4 hours, depending on the specific pipe design and installation. It is important to note that while ductile iron pipes possess high fire resistance, they are not fireproof. In the event of a fire, it is vital to adhere to proper fire safety procedures and seek advice from professionals to ensure the safety of the system and surrounding infrastructure.
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 different sizes of ductile iron pipes available?
Ductile iron pipes are available in a variety of sizes to cater to different applications and requirements. The sizes of ductile iron pipes typically range from 3 inches to 64 inches in diameter. These different sizes allow for flexibility and adaptability in various industries such as water supply, sewage systems, irrigation, and industrial piping. The smaller diameter ductile iron pipes, such as those in the range of 3 to 12 inches, are commonly used for residential and small-scale applications like household plumbing, fire hydrant systems, and small irrigation projects. These sizes are often found in urban areas and residential neighborhoods. For more extensive applications, larger diameter ductile iron pipes are utilized. They can range from 14 inches up to 64 inches in diameter. These larger pipes are predominantly used in municipal water supply systems, wastewater treatment plants, and industrial facilities where high-volume water flow is required. The availability of a wide range of sizes in ductile iron pipes ensures that they can accommodate various flow rates and pressure requirements. It allows engineers, contractors, and designers to select the appropriate size based on the specific needs of a particular project or application. It is essential to consult industry standards, local regulations, and engineering guidelines to determine the suitable size of ductile iron pipes for any specific project. This ensures that the pipes are capable of meeting the required performance standards and are suitable for the intended use.
Q:What is the expected leakage rate of ductile iron pipes?
The leakage rate of ductile iron pipes can vary depending on several factors, including pipe age, condition, installation quality, and external influences on pipe integrity. However, in comparison to other pipe types, ductile iron pipes are renowned for their durability and low leakage rates. Based on industry standards and studies, well-maintained and correctly installed ductile iron pipes typically have an expected leakage rate of less than 0.5 liters per pipe per day (LPPD). This leakage rate meets the requirements set by regulatory bodies and organizations, and is considered acceptable. It is crucial to emphasize that regular maintenance and inspections are vital in sustaining the low leakage rate of ductile iron pipes. Prompt identification and repair of potential leaks or damages can effectively minimize the overall leakage rate. Moreover, advancements in manufacturing techniques and pipe design have led to the creation of more leak-resistant ductile iron pipes. These pipes may have even lower expected leakage rates than the industry average, further improving their performance and reliability. Ultimately, when properly installed and maintained, ductile iron pipes are a reliable choice for various water distribution and transmission systems, as their expected leakage rate is generally low.
Q:What is the typical weight of ductile iron pipes?
The typical weight of ductile iron pipes can vary depending on their size and thickness. However, as a general guideline, ductile iron pipes commonly range in weight from around 1 pound per foot for smaller diameter pipes to several hundred pounds per foot for larger diameter pipes. The weight of ductile iron pipes is determined by factors such as the pipe's dimensions, the thickness of its walls, and the specific requirements of the intended application. It is important to note that these weights are approximate and can vary based on the specific manufacturer and product specifications.

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