DUCTILE IRON PIPES C Class DN1000 System 1

DUCTILE IRON PIPES C Class DN1000

Ref Price:

Loading Port:: China Main Port

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: -

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

You Might Also Like

Push On Joint T Type Ductile Cast Iron Pipe K9

Push-on Joint T Type Ductile Iron Pipe Class C

Self-restrained Joint Ductile Iron Pipe

Ductile Iron Pipe Mechnical Joint K Type

Ductile Iron Pipe DN250

T Type Ductile Iron Pipe DN80 socket spigot pipe

Ductile Iron Pipe DN150 DN300 K8 K9 K7 C

DUCTILE IRON PIPE DN800 K8/C/K9

Ductile Iron Cast Pipe is without any defects compare with tradition casting tech, which has many advantages particularly as follow:

(1) High density. In the "vertical upward casting" process, the melt iron of centre liquid column in center crystallizer is continuously feeding for volume shrinkage caused by condensation tube at outer circumference , which lead to be free of shrinkage porosity.

(2) High purity. When melt iron pouring, the mixed impurities such as gas, dross, sand grain which are lighter than melt iron could be eliminated at furnace mouth, its impossible to enter into the crystallizer through the channel, so the melt iron into the crystallizer is very pure.

(3) Strength with toughness. The cooling speed provided by continuous crystallizer is 30 times than sand casting and 5 times than centrifugal casting, and doesn't produce white iron, the eutectic cell volume of continuous cast iron is one eighth to one tenth compare with traditional cast iron. The density of graphite nodule in ductile iron can reach 300-700 pcs/mm2. Therefore, all reason above improve the strength and toughness of continuous cast iron.

(4) Free machining. The high speed cooling make the hardening phase (such as boride, steadite) not appear like reticular, massive or thick, but diffuse like fish bone and pane in shape, moreover, there are tiny graphite flakes inlaid hardening phase. It's free machining in BrinellHardness the range of 250-300HB. However, the Brinell Hardness of 250 is top limit to common metal materials.

(5) Uniform composition of tube wall. The convection mixing of liquid column caused by marching type drawing in crystallizer make the composition of tube wall well-distributed, and concentration gradient very little.

(6) High productivity. To the wall thickness of tube under 10mm, the speed of continuous casting is 1 meter/min, to the wall thickness of tube under 20mm, the speed of continuous casting is 0.5 meter/min, which is high efficiency that centrifugal or other casting tech couldn't reach.

Q: Are ductile iron pipes resistant to hydrostatic pressure?: Yes, ductile iron pipes are resistant to hydrostatic pressure. They have the ability to withstand high water pressure without deforming or bursting, making them a reliable choice for applications involving the transportation of water and other fluids.

Q: Can ductile iron pipe be used for hot water applications?: Indeed, hot water applications can make use of ductile iron pipe. Renowned for its robustness, longevity, and exceptional resistance to corrosion, ductile iron pipe proves itself ideal for diverse applications, including hot water systems. Its capability to withstand high temperatures and pressure renders it a dependable choice for the conveyance of hot water. Moreover, its thermal conductivity properties facilitate efficient heat transfer, guaranteeing the effective delivery of hot water throughout the system. Consequently, when evaluating materials for hot water applications, ductile iron pipe emerges as a fitting alternative.

Q: How do ductile iron pipes perform in cold weather conditions?: The exceptional performance of ductile iron pipes in cold weather conditions is well-known. Unlike cast iron or PVC, ductile iron exhibits remarkable resistance to low temperatures. This resistance is primarily attributed to its unique microstructure, which enables it to maintain its structural integrity even in extreme weather conditions. In freezing temperatures, ductile iron pipes demonstrate a low coefficient of thermal expansion, meaning they do not contract or expand significantly with changes in temperature. This characteristic ensures their stability and prevents cracking or bursting. Additionally, the high impact resistance of ductile iron further enhances its ability to withstand the stress imposed by cold weather conditions. Moreover, ductile iron pipes are equipped with a protective lining, typically composed of cement mortar or epoxy. This lining acts as an additional barrier against the effects of cold weather, preventing the formation of ice on the inner surface of the pipes. Consequently, the risk of blockages or reduced flow capacity is greatly reduced. In conclusion, ductile iron pipes are a reliable choice for cold weather conditions. Their durability, low thermal expansion, and protective lining make them highly resistant to the challenges posed by freezing temperatures. Whether used for water supply, sewer systems, or other applications, ductile iron pipes have consistently proven their effectiveness even in the harshest winter climates.

Q: What's the advantage of FCD50 ductile iron?: Ductile iron generally large diameter, pipe wall thickness, crisp texture, low strength, low price, is an economic water supply pipe, the normal service life of up to 20~25 years.

Q: Does the cast iron pipe need separate corrosion protection?: No, the inner and outer corrosion protection of the tube has been done.

Q: What is the expected cyclic fatigue life of ductile iron pipes?: Various factors such as material composition, pipe design, loading conditions, and environmental factors can affect the expected cyclic fatigue life of ductile iron pipes. However, ductile iron pipes are widely recognized for their exceptional ability to withstand fatigue. Ductile iron pipes are specifically engineered to endure cyclic loading, which is common in water distribution and sewer systems due to fluctuating pressures and vibrations. These pipes possess a unique microstructure that confers high strength and ductility, enabling them to resist crack formation and growth under cyclic loading. Numerous studies and industry standards have provided estimates for the expected cyclic fatigue life of ductile iron pipes. For instance, the American Water Works Association (AWWA) C151 standard recommends a design life of 100 years for ductile iron pipes used in water distribution systems, underscoring their long-term durability and resistance to fatigue. Furthermore, research studies have demonstrated that ductile iron pipes can withstand over 1 million cycles of loading without exhibiting any signs of fatigue failure. The fatigue strength of ductile iron pipes can be further augmented by employing protective coatings or linings to reduce the impact of corrosion and abrasion. Nevertheless, it is important to recognize that various factors, such as manufacturing quality, installation practices, and maintenance procedures, can influence the expected cyclic fatigue life of ductile iron pipes. Regular inspections, appropriate handling, and adherence to recommended installation guidelines can help ensure the longevity and performance of ductile iron pipes. In conclusion, while the expected cyclic fatigue life of ductile iron pipes can be subject to variation due to several factors, these pipes are generally renowned for their outstanding fatigue resistance and offer a dependable and enduring solution for water distribution and sewer systems.

Q: Nodular cast iron, heat treatment process and so on: High temperature graphitization annealing was adopted to eliminate the chill, and 900-950 and 2-4H obtained ferrite structure

Q: What are the typical maintenance requirements for ductile iron pipe?: To maintain ductile iron pipe, it is necessary to conduct regular inspections, clean the pipe, and repair any damage. Inspections play a crucial role in identifying signs of damage, corrosion, or leaks. This can be done visually or using non-destructive testing techniques such as ultrasonic or magnetic particle testing. Regular inspections are important for detecting and addressing issues before they worsen and cause significant damage. Cleaning is another essential maintenance requirement for ductile iron pipe. Over time, sediment, scale, and debris can accumulate inside the pipe, reducing its flow capacity and potentially causing blockages. Regular cleaning methods like high-pressure water jetting or mechanical cleaning can remove these deposits, ensuring optimal flow and preventing problems related to reduced flow or pressure. Repairing any damage or corrosion is crucial for maintaining ductile iron pipe. If cracks, leaks, or other forms of damage are detected during inspections, prompt repairs are necessary to prevent further deterioration and potential failure. Depending on the extent of the damage, repairs may include welding, epoxy lining, or replacement of the affected section of the pipe. In addition to these specific maintenance requirements, implementing a comprehensive maintenance program is important. This may involve preventative measures such as cathodic protection to prevent corrosion or the application of protective coatings to extend the pipe's lifespan. Overall, regular inspections, cleaning, and repairs are necessary for maintaining ductile iron pipe. Following these maintenance practices ensures the pipe's longevity, reliability, and optimal performance, reducing the risk of failures and disruptions.

Q: How are ductile iron pipes protected against external damage?: Ductile iron pipes are protected against external damage through a combination of various protective measures. One common method used is the application of a protective coating on the external surface of the pipe. This coating acts as a barrier, preventing the direct contact of the pipe with corrosive elements in the surrounding environment. The coating can be made of materials such as epoxy, polyurethane, or zinc, which provide excellent resistance against corrosion, abrasion, and chemical attacks. Additionally, ductile iron pipes can be further protected by encasing them in a concrete or cement mortar lining. This lining provides an extra layer of protection, reducing the chances of physical damage due to external impacts or soil movement. The concrete or cement mortar lining also helps to improve the pipe's hydraulic performance by reducing friction and maintaining a smooth flow of water or other fluids. Furthermore, ductile iron pipes are often installed with proper bedding and backfilling techniques. This involves using suitable materials such as sand or gravel to support and stabilize the pipe, minimizing the risk of external damage caused by uneven ground settlement or heavy loads. Adequate compaction of the backfill material is crucial to ensure the long-term integrity and stability of the pipe. Regular inspection and maintenance are also essential for protecting ductile iron pipes against external damage. Periodic inspections can identify any signs of corrosion, coating degradation, or physical damage, allowing for timely repairs or replacement before significant issues arise. Additionally, proper cathodic protection systems can be employed to prevent corrosion by applying an electric current that counteracts the electrochemical reactions occurring on the pipe's surface. In summary, ductile iron pipes are protected against external damage through the application of protective coatings, concrete or cement mortar linings, proper bedding and backfilling techniques, and regular inspections and maintenance. These measures collectively ensure the durability, longevity, and reliable performance of ductile iron pipes in various environments and applications.