DUCTILE IRON PIPE K8 DN450
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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: What is the average cost of ductile iron pipes?
- The average cost of ductile iron pipes can vary depending on factors such as the size, length, and supplier. However, on average, ductile iron pipes can range from $30 to $300 per linear foot.
- Q: How are ductile iron pipes protected against external corrosion?
- Ductile iron pipes are protected against external corrosion through a combination of manufacturing processes and external coatings. The first line of defense is the inherent corrosion resistance of ductile iron itself. The iron is treated with a special alloying element, typically magnesium, which forms a protective layer on the surface of the pipe. This layer acts as a barrier against corrosion and helps to extend the lifespan of the pipe. In addition to the corrosion-resistant properties of the iron, ductile iron pipes are also externally coated with protective materials. One common method is to apply a layer of asphaltic or bituminous coating to the pipe's surface. This coating acts as a barrier against moisture and corrosive substances in the soil, preventing them from coming into contact with the iron. It also provides a layer of insulation, reducing the likelihood of galvanic corrosion. Another method of external corrosion protection is the use of fusion-bonded epoxy (FBE) coatings. FBE is a thermosetting resin that is applied to the surface of the pipe and then heat-cured to form a strong and durable coating. This coating provides excellent resistance against corrosion, abrasion, and impact, making it a popular choice for ductile iron pipes in harsh environments. In some cases, additional protective measures such as cathodic protection systems may be employed. These systems use electric currents to counteract the corrosion process by supplying electrons to the pipe's surface. This helps to prevent corrosion from occurring, especially in areas where the coating may have been damaged or compromised. Regular maintenance and inspection are also crucial in ensuring the long-term protection of ductile iron pipes against external corrosion. This includes periodic cleaning, repair of any coating damages, and monitoring the integrity of the protective layers. Overall, the combination of the inherent corrosion resistance of ductile iron, external coatings, and maintenance practices ensures that ductile iron pipes are well-protected against external corrosion, allowing them to have a longer lifespan and deliver reliable performance in various applications.
- Q: What are the typical joint restraint requirements for ductile iron pipes under pressure?
- The typical joint restraint requirements for ductile iron pipes under pressure involve the use of mechanical joint restraints or restrained joint systems. These restraints are necessary to prevent the pipes from separating or pulling apart due to the internal pressure exerted on them. One common type of joint restraint is the mechanical joint restraint, which consists of a series of bolts and clamps that securely hold the pipes together. These restraints are typically applied at each joint of the ductile iron pipes to ensure a tight and secure connection. Mechanical joint restraints provide axial restraint, preventing the pipes from separating in the direction of the pipe axis. Another type of joint restraint used for ductile iron pipes is the restrained joint system. This system involves the use of a specially designed joint that provides both axial and angular restraint. The restrained joint system typically consists of a gasket, a restraining gland, and a series of bolts or wedges. The gasket provides a watertight seal, while the restraining gland and bolts/wedges restrain the pipe joints, preventing separation under pressure. The specific joint restraint requirements for ductile iron pipes under pressure may vary depending on the diameter, wall thickness, and operating conditions of the pipes. It is important to consult the manufacturer's guidelines and industry standards to determine the appropriate joint restraint system for a given application. Additionally, proper installation and maintenance of the joint restraints are crucial to ensure their effectiveness and longevity in restraining the pipes.
- Q: Can ductile iron pipe be used for wastewater treatment plant applications?
- Ductile iron pipe is indeed applicable for wastewater treatment plant purposes. Its suitability stems from several properties it possesses. Firstly, its high resistance to corrosion is crucial in such plants, where the presence of chemicals and water can cause pipe rust and degradation. Moreover, its high tensile strength and durability enable it to withstand the demands of wastewater treatment processes. Furthermore, its flexibility facilitates easy installation and maintenance within intricate wastewater treatment systems. In conclusion, ductile iron pipe is a dependable and cost-effective option for wastewater treatment plant applications.
- Q: How does ductile iron pipe compare to PVC pipe in terms of performance and cost?
- Ductile iron pipe and PVC pipe have different characteristics in terms of performance and cost. Ductile iron pipe is known for its strength, durability, and ability to withstand high pressure and heavy loads, making it ideal for applications that require robust performance such as water distribution systems. On the other hand, PVC pipe is lightweight, corrosion-resistant, and more flexible, making it suitable for above-ground and non-pressurized applications like drainage systems. In terms of cost, PVC pipe is generally less expensive than ductile iron pipe, especially for smaller diameter pipes. However, as the diameter increases, ductile iron pipe becomes more cost-effective due to its superior strength and longer lifespan, which reduces maintenance and replacement costs over time. Ultimately, the choice between ductile iron and PVC pipe depends on the specific application, budget, and desired performance characteristics.
- 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: How do ductile iron pipes perform in earthquake-induced ground movements?
- Ductile iron pipes have proven to be a reliable and resilient choice for underground infrastructure, including in areas prone to earthquake-induced ground movements. The unique properties of ductile iron, such as its strength and flexibility, allow it to withstand the effects of ground movements during an earthquake. During an earthquake, the ground experiences shaking and shifting, which can exert significant forces on underground pipes. Ductile iron pipes have the ability to flex under these forces, absorbing the energy and reducing the risk of failure. They can withstand substantial ground movements without cracking or breaking, which ensures the continued flow of water or other fluids. In addition, ductile iron pipes have excellent resistance to corrosion and are highly durable, making them suitable for long-term use in earthquake-prone areas. This reduces the need for frequent maintenance or replacement, providing cost-effective and reliable infrastructure solutions. Furthermore, the joints used in ductile iron pipe installations are designed to accommodate movement and allow for slight adjustments during ground shifts. This flexibility prevents the pipes from becoming dislodged or separated, maintaining the integrity of the system. Overall, ductile iron pipes have a proven track record of performance in earthquake-induced ground movements. They offer resilience, flexibility, and durability, ensuring the continuous functioning of water and sewer systems even in areas prone to seismic activity.
- Q: How can the steel plastic composite pipe be connected with the cast iron pipe?
- Use stainless steel clamps to connect.
- 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.
- Q: Advantages and disadvantages of ductile iron pipes
- Comparison between ductile iron pipe and universal cast iron pipe: the process of making ductile iron pipe is cast by adding alkaline earth metal or rare metal such as magnesium and calcium in the raw material of common cast iron pipe. The casting process of nodular cast iron pipe casting method and water cooled centrifugal casting hot continuous casting method, which method is water, the world's most advanced technology, different technology of ductile cast iron and cast iron pipe technology performance comparison, not only to maintain the ordinary cast iron pipe corrosion resistance, and has the advantages of high strength and toughness good, thin wall, light weight, impact resistance, bending performance, convenient installation.
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DUCTILE IRON PIPE K8 DN450
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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