DUCTILE IRON PIPES AND PIPE FITTINGS DN900

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t

Supply Capability:: 30000 m.t/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 are several methods for joining ductile iron pipe, including mechanical joints, flanged joints, push-on joints, and restrained joints. Mechanical joints use a rubber gasket and a series of bolts and glands to create a secure connection. Flanged joints involve bolting two flanges together with a gasket in between. Push-on joints utilize a rubber gasket and require the pipe to be pushed into the joint. Restrained joints use a combination of mechanical joints and a restraining gland to prevent movement and provide a secure connection.

Q: Can ductile iron pipes be used in culvert or storm sewer applications?: Yes, ductile iron pipes can be used in culvert or storm sewer applications. Ductile iron pipes are known for their strength, durability, and resistance to corrosion, making them suitable for handling the high demands and harsh conditions typically found in culverts and storm sewers.

Q: Principles for the antiseptic treatment of ductile iron pipes: 4. epoxy ceramic liningEpoxy ceramic lining is suitable for sewage pipes and gas pipelines, but because of its difficult manufacturing process and high cost, it has some limitations in its use. Epoxy ceramic lining has a high adhesion and finish. It is an excellent anti-corrosion coating.5. aluminate cement coating or sulphate cement coatingThese two special cement coatings are suitable for internal corrosion protection of nodular iron pipes used in sewage pipes to improve the corrosion resistance of acid and alkali components in sewage.

Q: What is the expected deflection range for ductile iron pipes?: Several factors, such as pipe diameter, wall thickness, soil conditions, and installation methods, can affect the expected deflection range for ductile iron pipes. Compared to materials like PVC or concrete pipes, ductile iron pipes generally have a higher deflection capacity. For ductile iron pipes with smaller diameters (up to 12 inches), the typical expected deflection range is around 2-3% of the pipe diameter. In other words, a 12-inch ductile iron pipe could potentially deflect by approximately 0.24-0.36 inches. On the other hand, larger diameter ductile iron pipes (greater than 12 inches) can have a slightly higher expected deflection range, ranging from 2-5% of the pipe diameter. For instance, a 24-inch ductile iron pipe could potentially deflect by approximately 0.48-1.2 inches. It is important to remember that these values are general estimates and should be confirmed with the manufacturer's specifications or engineering design guidelines specific to a particular project. Furthermore, following proper installation techniques and backfilling practices is crucial to ensure the structural integrity of the pipe and prevent excessive deflection.

Q: What are the different methods for testing ductile iron pipe?: There are several methods available for testing ductile iron pipe to ensure its quality and reliability. These methods include: 1. Hydrostatic Testing: This is the most common method used for testing ductile iron pipe. It involves filling the pipe with water and pressurizing it to a specified level. The pipe is then inspected for any leaks or deformations under the applied pressure. Hydrostatic testing helps determine the pipe's ability to withstand internal pressure without failure. 2. Tensile Testing: This method involves subjecting a sample of the ductile iron pipe to a gradually increasing tensile load until it fractures. The test measures the ultimate tensile strength, yield strength, and elongation of the material. Tensile testing helps evaluate the pipe's mechanical properties and its ability to withstand tension without breaking. 3. Hardness Testing: This method measures the hardness of the ductile iron pipe using various techniques such as Brinell, Rockwell, or Vickers hardness tests. Hardness testing provides information about the material's resistance to deformation, wear, and fatigue. It helps assess the pipe's durability and resistance to external forces. 4. Impact Testing: This method involves striking a notched sample of the ductile iron pipe with a pendulum or falling weight to measure its impact resistance. The test determines the material's ability to absorb energy during sudden loading or impact. Impact testing helps evaluate the pipe's ability to withstand accidental impacts or dynamic loads. 5. Ultrasonic Testing: This non-destructive testing method uses high-frequency sound waves to detect internal defects or discontinuities in the ductile iron pipe. Ultrasonic testing can identify voids, cracks, or inclusions that may affect the pipe's structural integrity. It helps ensure the pipe's soundness and reliability. 6. Magnetic Particle Testing: This method is primarily used for detecting surface or near-surface defects in the ductile iron pipe. It involves applying a magnetic field to the pipe and then applying magnetic particles to the surface. Any defects present will cause the magnetic particles to gather and form visible indications. Magnetic particle testing helps identify surface cracks, laps, or other defects that may affect the pipe's performance. These different testing methods help ensure that ductile iron pipe meets industry standards and specifications, ensuring its quality and reliability in various applications.

Q: What are the typical surge anticipation measures for ductile iron pipe?: Typical surge anticipation measures for ductile iron pipe involve implementing various techniques to mitigate the potential damage caused by surges or water hammer in the pipe system. These measures are designed to absorb or redirect the sudden pressure changes, preventing the pipe from rupturing or failing. Some common surge anticipation measures for ductile iron pipe include: 1. Air chambers: Air chambers are installed at strategic points along the pipeline to provide a cushion of air that absorbs the energy generated by surges. As the pressure wave travels through the pipe, the air compresses, reducing the impact on the pipe and minimizing the risk of damage. 2. Surge tanks: Surge tanks are large vessels connected to the pipeline that act as storage reservoirs for excess pressure. When a surge occurs, the surge tank absorbs the excess water volume, preventing it from causing damage to the pipe. The stored water is then gradually released back into the system, allowing pressure to stabilize. 3. Surge relief valves: Surge relief valves are installed in the pipeline to automatically release excess pressure during surge events. These valves open when the pressure exceeds a preset limit, allowing the surge to dissipate harmlessly. Surge relief valves can be adjusted to release the desired amount of pressure, ensuring the safety of the ductile iron pipe. 4. Water hammer arrestors: Water hammer arrestors are devices that absorb the shock generated by surges and water hammer in the pipe system. They consist of a sealed chamber with a compressible gas or liquid that absorbs the sudden pressure changes. By absorbing the energy, water hammer arrestors protect the ductile iron pipe from potential damage. 5. Surge suppressors: Surge suppressors are devices that regulate the flow of water during surge events. They are designed to reduce the speed at which surges travel through the pipe, minimizing the impact on the system. Surge suppressors can be installed at critical points in the pipeline to prevent damage to the ductile iron pipe. It is essential to consider the specific requirements of the pipeline system and consult with experienced engineers or industry professionals to determine the most suitable surge anticipation measures for ductile iron pipe installations.

Q: Do ductile iron pipes require cathodic protection?: Indeed, cathodic protection is necessary for ductile iron pipes. Employing this technique safeguards metallic structures against corrosion by designating them as the cathode in an electrochemical cell. Ductile iron pipes face a high susceptibility to corrosion, particularly in harsh soil environments or when exposed to water that harbors substantial amounts of corrosive elements like chlorides or sulfates. By subjecting the pipe to a direct electrical current, cathodic protection effectively thwarts the innate corrosion process. This approach guarantees the durability and soundness of the ductile iron pipes, thereby diminishing the frequency of repairs or replacements.

Q: What is a slide in type T flexible interface?: As long as the socket is inserted into the slot, the installation is quick, labor-saving and airtight, and what is good is also good

Q: Can ductile iron pipes be used in areas with high soil acidity and alkalinity?: Ductile iron pipes can generally be used in areas with high soil acidity and alkalinity. However, it is important to consider the specific conditions and take appropriate measures to mitigate the potential effects of these soil characteristics on the pipes. In areas with high soil acidity, the acidic conditions can promote corrosion of metal pipes, including ductile iron. To prevent this, protective measures such as applying an external coating or using cathodic protection can be implemented. These measures help to create a barrier between the pipe and the corrosive environment, extending the longevity of the pipes. Similarly, in areas with high soil alkalinity, the alkaline conditions can also have an impact on the performance of ductile iron pipes. Alkaline soils can cause the formation of calcium carbonate deposits, commonly known as scale, which can reduce the flow capacity of the pipes over time. Regular maintenance and cleaning of the pipes can help mitigate the effects of scale buildup. It is worth noting that the suitability of ductile iron pipes in areas with high soil acidity and alkalinity may also depend on the specific grade and quality of the pipes. Manufacturers often provide guidelines and recommendations regarding the use of their products in various environmental conditions. It is advisable to consult with pipe manufacturers or industry experts to ensure proper selection and installation of ductile iron pipes in such areas.

Q: How do ductile iron pipes perform in high-traffic areas?: Ductile iron pipes perform well in high-traffic areas due to their durability and strength. They have the ability to withstand heavy loads and traffic loads without experiencing deformation or damage. Additionally, their corrosion resistance properties make them suitable for prolonged exposure to moisture and harsh environmental conditions. Overall, ductile iron pipes are a reliable choice for high-traffic areas.

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