K Type Ductile Iron Pipe DN300 Socket spigot pipe

K Type Ductile Iron Pipe DN300 Socket spigot pipe

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 200 m.t

Supply Capability:: 30000 m.t/month

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Specification:

1) The standard of pipe: ISO2531:1998, EN545:2006，K9 K8

2) Effective length: 6m/5.7m

3) Inner cement line: Portland cement lineas per ISO4179

4) Zinc coating: at least 130g/m² as per ISO8179

5) Bitumen painting: at least 70μm as per ISO8179

6)With 102% quantity of NBR, SBR, or EPDM ring asper ISO4633

7) DN80-DN1200

8) Highstrength, lighter than grey iron, good corrosion resistance, no furring, smallflow resistance, easy fixing, long life tome about 100 yeas

9)Checked by automatic inspection equipment

10) Composition:

Chemical composition
Chemical composition	Ductile Cast Iron Pipe (%)	Grey iron pipe (%)	Steel pipe (%)
C	3.5-4.0	3.2-3.8	0.1-0.2
Si	1.9-2.6	1.4-2.2	0.15-0.4
Mn	0.15-0.45	0.4-0.6	0.3-0.6
P	≤0.06	≤0.3	0.02-0.03
S	≤0.02	≤0.1	0.02-0.03
Mg	0.03-0.06

11) Feature:

Mechanical properties
	Ductile Cast Iron Pipe	Grey Iron Pipe	Steel Pipe
Tensile Strength(Mpa)	≥420	150-260	≥400
Yield Strength(Mpa)	≥300	No Confirmation	No Confirmation
Bending Strength(Mpa)	≥590	200-360	≥400
Elongation (%)	≥10	Neglected	≥18
Brinell Hardness(HBS)	≤230	≤230	About 140

12) T type mechanical joint

13) Packing: in bulk or container

PACKING: 1) Pipesare bundled together with the steel belt.

2) Wooden pieces are put between the pipes.

Q: What is the relationship between the installation direction of the ductile iron pipe and the direction of flow?: The ductile iron pipe is installed in the direction of the current.

Q: How are ductile iron pipes protected against internal scaling or buildup?: Ductile iron pipes are protected against internal scaling or buildup through various methods. One of the most common methods is the application of cement mortar lining on the inner surface of the pipes. This lining acts as a protective barrier, preventing the formation of scale or buildup and ensuring a smooth flow of water or other fluids. Additionally, the pipes can be coated with a layer of polyethylene or other suitable materials to provide an extra level of protection against scaling or buildup. This coating acts as a barrier between the water and the iron surface, reducing the chances of corrosion or scale formation. Regular maintenance and cleaning are also crucial in preventing internal scaling or buildup in ductile iron pipes. Flushing the pipes with high-pressure water or using chemical treatments can help remove any accumulated scale or debris, ensuring the pipes remain clean and functional. Furthermore, proper water treatment is important to minimize the risk of scaling or buildup. Implementing appropriate water treatment processes, such as pH adjustment or the use of corrosion inhibitors, can help maintain the quality of the water and prevent the formation of scale or buildup inside the pipes. In conclusion, ductile iron pipes are protected against internal scaling or buildup through various measures, including cement mortar lining, pipe coating, regular maintenance, cleaning, and proper water treatment. These measures ensure the longevity and efficiency of the pipes, minimizing the chances of clogging or reduced flow capacity.

Q: How does ductile iron pipe perform in areas with high soil contamination?: Ductile iron pipe performs well in areas with high soil contamination due to its inherent strength and corrosion resistance. Its durable and robust nature allows it to withstand the chemical and physical challenges posed by contaminated soil. Additionally, its smooth interior surface minimizes the accumulation of debris and sediment, reducing the chances of blockages and maintaining efficient flow. Overall, ductile iron pipe is a reliable choice for areas with high soil contamination, providing long-lasting and dependable performance.

Q: Can ductile iron pipes be used for stormwater management systems?: Yes, ductile iron pipes can be used for stormwater management systems. Ductile iron pipes are known for their strength, durability, and corrosion resistance, making them suitable for handling stormwater runoff. They can effectively transport large volumes of water and withstand the pressure and impact associated with stormwater management.

Q: How do ductile iron pipes handle ground movement near rivers and lakes?: Ductile iron pipes are well-suited to handle ground movement near rivers and lakes due to their unique properties and construction. These pipes are made from a type of cast iron that is known for its high strength and flexibility, making them highly resistant to ground movement and other external forces. One of the key features of ductile iron pipes is their ability to withstand bending and stretching without breaking. This flexibility allows the pipes to adapt to ground movements, whether they are caused by natural factors like soil settling, erosion, or even seismic activity. The pipes can absorb and distribute the stress caused by ground movement, reducing the risk of cracks or fractures. Additionally, ductile iron pipes have a high impact resistance, which means they can withstand external forces such as pressure from shifting soil or heavy equipment. This makes them less susceptible to damage during ground movements near rivers and lakes where erosion or flooding can occur. Furthermore, ductile iron pipes have a smooth internal surface, which reduces friction and resistance to flow. This ensures efficient water transportation even in areas with ground movement, preventing any potential blockages or disruptions to the water supply system. To enhance their resistance to ground movement, ductile iron pipes are often installed using flexible joints, such as restrained joints or push-on joints, depending on the specific project requirements. These joints allow the pipes to move slightly without causing damage to the overall system, providing additional protection against ground movement near rivers and lakes. In summary, ductile iron pipes are highly capable of handling ground movement near rivers and lakes due to their strength, flexibility, impact resistance, and smooth internal surface. These qualities make them a reliable choice for water transportation systems in areas prone to ground movement, ensuring a durable and efficient infrastructure for the supply of water.

Q: How are leaks repaired in ductile iron pipe?: Leak repairs in ductile iron pipes are typically carried out using various methods depending on the severity and location of the leak. One commonly used technique is the application of epoxy-based sealants or leak repair clamps. For small leaks, epoxy sealants are commonly used. This involves applying a specialized epoxy compound to the leaking area, which then hardens and forms a durable seal over the leak. The epoxy is carefully applied to the surface of the pipe, covering the leakage point and any surrounding damaged areas. This method is effective for small leaks and can provide a long-lasting solution. In cases where the leak is larger or more severe, leak repair clamps are often employed. These clamps are designed to provide a mechanical seal over the leak, using rubber gaskets and bolts to secure the clamp tightly around the pipe. The pressure from the clamp compresses the gasket onto the pipe, creating a watertight seal and preventing further leakage. Leak repair clamps are available in various sizes to accommodate different pipe diameters. In both cases, it is crucial to properly prepare the pipe surface before applying the repair method. The area around the leak must be cleaned and dried thoroughly to ensure good adhesion of the epoxy or proper sealing with the clamp. Additionally, it is essential to follow the manufacturer's instructions and guidelines for the chosen repair method to ensure a successful and long-lasting repair. It is important to note that these repair methods are temporary solutions and may not be suitable for all situations. In some cases, particularly for extensive pipe damage or aging infrastructure, it may be necessary to replace the affected pipe section entirely. Professional assessment and guidance from qualified technicians or plumbers are recommended when dealing with leaks in ductile iron pipes to ensure proper repairs and minimize the risk of future issues.

Q: How are ductile iron pipes protected against root intrusion?: Ductile iron pipes are protected against root intrusion through various methods and techniques. One commonly used approach is the application of root inhibitors or growth regulators. These chemicals are typically injected into the soil around the pipes, creating a barrier that inhibits root growth near the pipe. This helps prevent roots from penetrating the pipe and causing damage. Another method involves the use of physical barriers such as root barriers or sleeves. These are installed around the pipes to physically block the roots from accessing them. Root barriers are typically made of materials like plastic or metal and are designed to withstand the pressure exerted by growing roots. Additionally, regular maintenance practices such as periodic inspections and cleaning are essential in preventing root intrusion. By monitoring the condition of the pipes and removing any existing root masses, the risk of further root intrusion can be minimized. It is worth noting that preventative measures are more effective than reactive measures when it comes to protecting ductile iron pipes against root intrusion. Therefore, implementing proactive strategies during the installation phase, such as proper pipe bedding and alignment, can help reduce the likelihood of root intrusion in the first place. Overall, a combination of chemical treatments, physical barriers, and appropriate maintenance practices can significantly enhance the protection of ductile iron pipes against root intrusion, ensuring their long-term durability and functionality.

Q: Can ductile iron pipes be used for road and highway drainage?: Yes, ductile iron pipes can be used for road and highway drainage. Ductile iron pipes have excellent strength and durability, making them suitable for use in various applications, including drainage systems. They have high tensile strength and can withstand heavy loads and traffic, making them ideal for road and highway drainage where constant vehicle movement is expected. Ductile iron pipes are also resistant to corrosion and offer a long service life, reducing maintenance and replacement costs. Additionally, their smooth inner surface allows for efficient water flow, preventing waterlogging and ensuring proper drainage. Therefore, ductile iron pipes are a reliable and effective choice for road and highway drainage systems.

Q: How do ductile iron pipes perform in high-velocity water flow conditions?: Ductile iron pipes perform excellently in high-velocity water flow conditions. Their inherent strength and durability allow them to withstand the force and turbulence of fast-flowing water without any significant issues. These pipes have been extensively tested and proven to maintain structural integrity, resist erosion, and minimize the risk of leaks or bursts, making them a reliable choice for high-velocity water flow applications.

Q: Are ductile iron pipes suitable for potable water systems?: Indeed, potable water systems can utilize ductile iron pipes without any issues. For numerous years, these pipes have been extensively employed in potable water systems due to their exceptional endurance, robustness, and resistance to corrosion. Their construction enables them to withstand high-pressure water flow and successfully tackle the challenges associated with underground installation. Additionally, the smooth internal surface of ductile iron pipes effectively prevents the accumulation of scale or sediment, guaranteeing the provision of sanitary and safe drinking water. Moreover, their extended lifespan renders them a cost-effective alternative for potable water systems. In summary, ductile iron pipes are an unquestionably dependable and widely embraced choice for potable water supply networks.

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