DUCTILE IRON PIPES K8 DN100
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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: Are ductile iron pipes resistant to hydrostatic pressure?
- Yes, ductile iron pipes are resistant to hydrostatic pressure. Ductile iron is a type of cast iron that is known for its strength and durability. It has excellent mechanical properties, including high tensile strength and elasticity, which enable it to withstand high levels of hydrostatic pressure. This makes ductile iron pipes well-suited for applications where water or other fluids need to be transported under pressure, such as in water distribution systems, sewer lines, and industrial pipelines. Additionally, ductile iron pipes have a high resistance to corrosion, which further enhances their ability to withstand hydrostatic pressure and ensures their long-term performance and reliability.
- Q: Can ductile iron pipes be used for seawater intake systems?
- Yes, ductile iron pipes can be used for seawater intake systems. Ductile iron is a type of cast iron that is known for its high strength, durability, and resistance to corrosion. These properties make it well-suited for various applications, including seawater intake systems. Seawater is highly corrosive due to its high salt content, and regular cast iron pipes may be susceptible to corrosion and damage over time. However, ductile iron pipes have a protective coating that acts as a barrier against corrosion, allowing them to withstand the harsh conditions of seawater. Additionally, ductile iron pipes have a higher tensile strength compared to regular cast iron pipes, making them more resistant to the high pressures and stresses associated with seawater intake systems. Overall, ductile iron pipes are a reliable and cost-effective choice for seawater intake systems.
- Q: What are the common methods for leak detection in ductile iron pipes?
- Professionals in the field commonly utilize various techniques to detect and locate leaks in ductile iron pipes. These methods play a crucial role in timely leak identification. 1. Acoustic Leak Detection: By employing specialized equipment, professionals listen for the sound of water escaping from the pipe. This equipment detects the leak's sound and aids in pinpointing its exact location. This technique is effective for both pressurized and non-pressurized pipes. 2. Visual Inspection: Physically inspecting the pipe system for visible signs of leaks, such as water stains, wet spots, or puddles, constitutes visual inspection. This relatively straightforward method proves effective in detecting visible leaks in accessible areas. 3. Pressure Testing: During installation or maintenance, pressure testing involves pressurizing the pipe system and monitoring pressure drops. A decrease in pressure signifies the presence of a leak. This method is particularly useful for identifying leaks in inaccessible areas. 4. Infrared Thermography: Infrared cameras detect leaks by measuring temperature variations. The camera can identify temperature differences caused by water escaping from a pipe. This technique is especially efficient in identifying concealed leaks behind walls or underground. 5. Tracer Gas Testing: Tracer gas testing entails injecting a specific gas, such as helium or hydrogen, into the pipe system. In the event of a leak, the gas escapes and can be detected using specialized equipment. This highly sensitive method can locate even minute leaks. 6. Soil Gas Monitoring: Monitoring the soil surrounding the pipe allows professionals to detect gases emitted by leaking water. Analyzing the composition of the soil gas aids in determining the leak's location. It is essential to consider the specific circumstances, such as pipe system size, accessibility, and leak severity when selecting a method. Combining multiple techniques may be necessary to ensure accurate and comprehensive leak detection.
- Q: What is the lifespan of ductile iron pipe?
- The lifespan of ductile iron pipe can vary depending on various factors such as the quality of the pipe, the environment in which it is installed, and the maintenance practices followed. However, on average, ductile iron pipe has a lifespan of around 80 to 100 years. This long lifespan can be attributed to the inherent durability and strength of ductile iron, which allows it to withstand high pressure, external loads, and environmental conditions. Additionally, ductile iron pipe is often coated with protective linings such as cement mortar or epoxy to further enhance its resistance to corrosion and extend its lifespan. Regular inspections and maintenance can also contribute to prolonging the lifespan of ductile iron pipe by identifying and addressing any potential issues in a timely manner. Ultimately, with proper installation, maintenance, and care, ductile iron pipe can provide reliable and long-lasting service for several decades.
- Q: Are ductile iron pipes suitable for use in wastewater pumping stations?
- Yes, ductile iron pipes are suitable for use in wastewater pumping stations. Ductile iron has excellent strength and durability, making it resistant to corrosion and capable of withstanding high pressure and heavy loads. It also has good flexibility, which helps prevent cracking or breaking under ground movements. Additionally, ductile iron pipes have a smooth internal surface, reducing friction and improving the flow of wastewater. Overall, these pipes are a reliable and long-lasting choice for wastewater pumping stations.
- 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: What is the difference between ductile iron pipes and cast iron pipes?
- Ductile iron pipes and cast iron pipes differ in terms of their composition and physical properties. Ductile iron pipes are made from ductile iron, which is a type of cast iron that contains nodular graphite in its microstructure, making it more flexible and resistant to cracking. On the other hand, cast iron pipes are made from gray cast iron, which has a gray, brittle structure due to the presence of graphite flakes. Ductile iron pipes are stronger, more durable, and less prone to damage, making them suitable for high-pressure applications and areas with heavy traffic loads. Cast iron pipes, although more brittle, are known for their corrosion resistance and are commonly used for water and sewage systems.
- Q: Are ductile iron pipes suitable for underground installations?
- Yes, ductile iron pipes are suitable for underground installations. Ductile iron is known for its strength, durability, and resistance to corrosion, making it a reliable choice for underground applications where the pipes may be subjected to various environmental conditions. Additionally, ductile iron pipes have the flexibility to withstand ground movement and can be easily installed using various trenchless methods, making them a preferred option for underground installations.
- Q: How do ductile iron pipes perform in high-velocity water flow conditions?
- Ductile iron pipes perform exceptionally well in high-velocity water flow conditions. Due to their unique composition and manufacturing process, ductile iron pipes exhibit superior strength and durability, making them highly resistant to the forces generated by high-velocity water flow. These pipes are specifically designed to withstand significant hydraulic pressure and turbulent conditions. Their inherent ductility allows them to absorb the energy of the flowing water and effectively dissipate any potential stress or impact that may occur. Additionally, the smooth internal surface of ductile iron pipes minimizes frictional losses, enabling efficient water flow even at high velocities. This characteristic is crucial in maintaining the required water pressure and flow rates in applications such as water distribution systems, sewage networks, and industrial processes. Moreover, the corrosion resistance of ductile iron pipes further enhances their performance in high-velocity water flow conditions. These pipes are typically lined with cement mortar or polyethylene, which provides an additional layer of protection against the corrosive effects of fast-flowing water. Overall, ductile iron pipes are well-suited for high-velocity water flow conditions, offering exceptional strength, durability, and hydraulic efficiency. Their ability to withstand the challenges posed by fast-flowing water makes them a reliable choice for a wide range of applications where high water velocity is a concern.
- Q: How can the three pipes of ductile iron leak?
- The raw material used in RE can be installed in the thread, can also be used on the same thread AB, re install is also available, but it is hard to remove.
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DUCTILE IRON PIPES K8 DN100
- 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
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