• DUCTILE IRON PIPE AND PIPE FITTINGS C CLASS DN300 System 1
  • DUCTILE IRON PIPE AND PIPE FITTINGS C CLASS DN300 System 2
DUCTILE IRON PIPE AND PIPE FITTINGS C CLASS DN300

DUCTILE IRON PIPE AND PIPE FITTINGS C CLASS DN300

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
23 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: What are the different methods for joining ductile iron pipe?
There exists a variety of methods to join ductile iron pipe, each possessing its own advantages and limitations. One commonly utilized technique is the mechanical joint (MJ) coupling, where a rubber gasket, bolts, and nuts are employed to establish a watertight seal between pipe sections. This method is comparatively swift and straightforward to install, although it necessitates the expertise of a skilled technician to ensure proper alignment and bolt tightening to prevent leakage. Another approach is the flanged joint, which involves equipping the pipe ends with flanges that are fastened together using gaskets to form a secure seal. This method permits easy disassembly and reassembly of pipe sections, making it suitable for applications requiring frequent maintenance or alterations. However, it is more costly and time-consuming when compared to other methods. A widely employed method is the push-on joint (POJ), wherein a rubber gasket and a special lubricant are utilized to slide the pipe ends together. This technique yields a reliable and watertight seal, and installation is relatively rapid and simple. However, it necessitates proper alignment and cautiousness to prevent damage to the gasket during assembly. An alternative option is the restrained joint (RJ), which utilizes a mechanical joint coupling with additional features to resist axial forces or thrusts. This method is commonly employed in applications where the pipe is subjected to internal pressure, external loads, or seismic activity. It offers a secure and rigid connection but may require specialized tools and training for installation. Lastly, welding is another method for joining ductile iron pipe. This involves heating the pipe ends and melting a filler metal to create a permanent bond. Welding provides a strong and durable connection, but it demands skilled welders and additional time for preparation, welding, and cooling. It is often employed for specific applications, such as joining sections of pipe with different diameters or connecting to other materials. In conclusion, the various methods for joining ductile iron pipe encompass mechanical joint coupling, flanged joint, push-on joint, restrained joint, and welding. The selection of the method relies on factors such as application requirements, installation time, maintenance needs, and budget.
Q: Are ductile iron pipes suitable for underground storage tanks?
Ductile iron pipes are indeed suitable for underground storage tanks. Ductile iron is a strong and durable material that is highly resistant to corrosion and can withstand the pressure and weight of being buried underground. These pipes are widely used in various underground applications, including water and sewage systems, as they have excellent tensile strength and can handle both internal and external loads. Moreover, ductile iron pipes have a long service life, often exceeding 100 years, making them a reliable choice for underground storage tanks. They are also resistant to ground movement and can adapt to soil settling or shifting, ensuring the integrity and stability of the storage tank system. Additionally, ductile iron pipes provide excellent flow characteristics due to their smooth internal surface, preventing the accumulation of debris or sediment that could potentially clog the system. This makes them an ideal choice for storing various liquids or substances. Overall, the strength, durability, corrosion resistance, and long service life of ductile iron pipes make them a suitable and reliable option for underground storage tanks.
Q: What are ductile iron pipes?
Ductile iron pipes are a type of iron pipe that possess high tensile strength and flexibility. They are made by treating cast iron with trace amounts of magnesium to create a material that is stronger and more resilient than traditional cast iron pipes. The addition of magnesium changes the microstructure of the iron, resulting in a matrix of graphite nodules within the iron, hence the name "ductile iron". This unique structure gives ductile iron pipes their remarkable properties, making them highly resistant to cracking and breaking even under high pressure and extreme temperature conditions. Ductile iron pipes are commonly used in water and wastewater systems, as well as in various industrial applications, due to their durability, longevity, and ability to withstand external loadings. They are also known for their ease of installation and low maintenance requirements, making them a popular choice in the construction industry.
Q: How are ductile iron pipes repaired if they get damaged?
There are several methods available for repairing ductile iron pipes, each dependent on the severity of the damage. Below are some commonly used techniques: 1. Spot Repair: When the damage is minimal and localized, a spot repair can be performed. This involves removing the damaged section of the pipe and replacing it with a new one. The new section is typically connected to the existing pipe using mechanical couplings or flanged connections. 2. Pipe Lining: If the damage is more extensive but the pipe remains structurally sound, pipe lining is a suitable option. This method entails inserting a liner into the damaged pipe, creating a new smooth surface. Various materials like epoxy or cured-in-place pipe (CIPP) can be used as liners. The advantage of this technique is that it eliminates the need for excavation and complete replacement of the pipe. 3. Pipe Bursting: In situations where the pipes are severely damaged or deteriorated, pipe bursting may be the most optimal solution. This process involves pulling a new pipe through the damaged one, simultaneously fracturing the old pipe and substituting it with a new one. Pipe bursting is typically employed when the existing pipe is irreparable and necessitates complete replacement. 4. Welding and Patching: In certain cases, small leaks or cracks in ductile iron pipes can be rectified through welding or patching. Welding involves melting and fusing the metal to seal the damaged area. Patching, on the other hand, involves applying a specialized epoxy or composite material over the affected section to create a watertight seal. It is essential to consider factors such as the extent of the damage, accessibility to the pipe, and the proficiency of the repair crew when selecting the appropriate repair method. Regardless of the technique chosen, a thorough assessment, meticulous planning, and skillful execution are necessary to ensure a successful and long-lasting repair.
Q: Does the cast iron pipe need separate corrosion protection?
Ductile iron is characterized by its ease of decay and deformation, so if it is not a particular requirement, there is no need to do it alone
Q: How many degrees can the ductile iron pipe be each?
Although ductile iron has a certain plasticity, it should not be bent in use
Q: What is the maximum temperature that ductile iron pipe can handle?
The maximum temperature that ductile iron pipe can handle depends on various factors such as the specific grade of ductile iron, the duration of exposure to high temperatures, and the presence of any external factors like corrosive environments. Generally, ductile iron pipes can handle temperatures up to 400-450 degrees Fahrenheit (204-232 degrees Celsius) for short durations. However, it is important to consult the manufacturer's specifications and guidelines to determine the specific maximum temperature limits for a particular grade of ductile iron pipe. Additionally, it is recommended to consider the effects of thermal expansion, potential loss of mechanical properties, and any additional protective measures that may be required at elevated temperatures.
Q: What are the advantages of using ductile iron pipe?
Using ductile iron pipe in various applications offers several benefits. Firstly, ductile iron pipe is renowned for its strength and durability. It possesses higher tensile and yield strengths compared to other pipe materials, making it highly resistant to cracking, bending, and breaking. This exceptional strength enables the pipe to withstand high-pressure and heavy-load conditions, making it an ideal choice for applications such as water and sewage systems, oil and gas pipelines, and industrial piping. Secondly, ductile iron pipe exhibits excellent corrosion resistance. It is coated with a protective layer, typically zinc or epoxy, which prevents rusting and corrosion. This coating ensures a longer lifespan for the pipe, even in harsh environments or when transporting corrosive fluids. Another advantage of ductile iron pipe lies in its flexibility. Unlike rigid pipes, ductile iron pipes possess a certain level of flexibility, enabling them to endure ground movements and settle without fracturing. This flexibility proves particularly advantageous in areas prone to earthquakes or soil settlements. Additionally, ductile iron pipe boasts a smooth inner surface, minimizing flow resistance and enhancing fluid transportation efficiency. It also reduces the likelihood of sediment accumulation or corrosion within the pipe, resulting in improved flow rates and decreased maintenance requirements. Furthermore, ductile iron pipe proves cost-effective in the long run. Although it may entail higher initial costs compared to other pipe materials, its durability and minimal maintenance needs make it a cost-effective choice over time. The extended lifespan of ductile iron pipe reduces the necessity for frequent replacements and repairs, contributing to lower overall life-cycle expenses. Lastly, ductile iron pipe exhibits environmental friendliness. It is manufactured using recycled materials, and its extended lifespan diminishes the need for frequent replacements, thereby reducing the carbon footprint associated with manufacturing and transportation. In conclusion, the utilization of ductile iron pipe offers numerous advantages, including exceptional strength, corrosion resistance, flexibility, smooth inner surface, cost-effectiveness, and environmental friendliness. These qualities establish it as a reliable and preferred option for various applications across diverse industries.
Q: What is the expected deflection limit of ductile iron pipes?
Several factors, including pipe diameter, wall thickness, and soil conditions, determine the expected deflection limit of ductile iron pipes. According to industry standards, it is recommended that ductile iron pipes used for underground installations should not exceed a deflection limit of 2%. In other words, the maximum allowable deflection would be 2% of the pipe's diameter. It is important to be aware that surpassing the deflection limit can result in various issues, such as reduced flow capacity, higher chances of pipe failure, and compromised structural integrity. Therefore, it is crucial to carefully consider and adhere to the suggested deflection limits when designing and installing ductile iron pipes to ensure their long-term performance and reliability.
Q: Are ductile iron pipes suitable for horizontal directional drilling?
Yes, ductile iron pipes are suitable for horizontal directional drilling due to their high strength and flexibility, which allows them to withstand the stress and bending forces during the drilling process.

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