DUCTILE IRON PIPE K12 DN 1000 SOCKET SPIGOT PIPES

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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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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: How do ductile iron pipes perform in sandy soil conditions?: Ductile iron pipes perform well in sandy soil conditions due to their inherent strength and durability. The material's high tensile strength allows it to withstand the pressure exerted by the surrounding soil, preventing pipe deformation and breakage. Additionally, the corrosion resistance of ductile iron ensures a longer lifespan, even in corrosive sandy soil environments.

Q: Can ductile iron pipes be used for irrigation systems in saline soil conditions?: Yes, ductile iron pipes can be used for irrigation systems in saline soil conditions. Ductile iron pipes are known for their durability and corrosion resistance, making them suitable for various soil conditions, including saline soil. Saline soil contains high levels of salt, which can cause corrosion and deterioration of certain materials. However, ductile iron pipes have a protective coating, such as cement mortar lining or polyethylene encasement, which provides an additional layer of protection against corrosion. This ensures that the pipes can withstand the corrosive effects of saline soil and maintain their structural integrity over a long period of time. Additionally, ductile iron pipes have a high tensile strength, making them resistant to cracks and breaks, which is important for irrigation systems that require a continuous and reliable water supply. Therefore, ductile iron pipes are a suitable choice for irrigation systems in saline soil conditions.

Q: What are the common pressure ratings for ductile iron pipes?: The pressure ratings for ductile iron pipes can vary depending on the application and industry standards. However, the most commonly used pressure ratings are Class 150, Class 200, Class 250, and Class 350. For low-pressure applications, Class 150 ductile iron pipes are typically used. These pipes have a working pressure of up to 150 psi and are commonly used for water distribution systems, irrigation, and gravity flow sewer systems. For applications requiring slightly higher pressure, such as industrial water supply and fire protection systems, Class 200 ductile iron pipes are used. These pipes have a working pressure of up to 200 psi. For more demanding applications, Class 250 ductile iron pipes are suitable. These pipes have a working pressure of up to 250 psi and are used for high-pressure water supply systems, power plants, and municipal water distribution networks. For heavy-duty applications, such as industrial water supply and oil and gas pipelines, Class 350 ductile iron pipes are used. These pipes have the highest working pressure rating, with a maximum pressure of up to 350 psi. It is important to note that these pressure ratings are general guidelines and can vary depending on the manufacturer and product specifications. Consulting industry standards and guidelines, as well as working with qualified engineers and professionals, is crucial to ensure the correct pressure rating is selected for a specific ductile iron pipe application.

Q: Are ductile iron pipes suitable for use in power plants?: Yes, ductile iron pipes are suitable for use in power plants. Ductile iron is a strong and durable material that can withstand high pressure and temperature conditions, making it ideal for transporting various fluids, such as water, steam, and chemicals within power plants. Additionally, ductile iron pipes have excellent corrosion resistance properties, which is crucial in power plants where exposure to moisture and chemicals is common. Furthermore, ductile iron pipes have a long service life and require minimal maintenance, reducing the overall operating costs for power plants. Overall, ductile iron pipes offer a reliable and cost-effective solution for fluid transportation within power plants.

Q: What are the recommended bedding and backfill materials for ductile iron pipe?: The recommended bedding and backfill materials for ductile iron pipe include a combination of granular materials such as sand, gravel, or crushed stone. These materials provide support and stability to the pipe, ensuring proper alignment and preventing damage during installation and operation. For bedding, a layer of sand is typically used to create a uniform and level surface for the pipe to rest on. This helps distribute the load evenly along the pipe's length and reduces the potential for stress concentration. Backfill material is used to fill the remaining space around the pipe once it is properly bedded. It is crucial to select a material that offers good compaction and drainage properties to prevent settling and potential damage to the pipe. Commonly used backfill materials include crushed stone or gravel, which provide stability and allow for proper compaction. It is important to follow the recommendations of the pipe manufacturer and any relevant industry standards when selecting bedding and backfill materials for ductile iron pipe. These materials should meet the specified size and quality requirements to ensure the long-term performance and durability of the pipe system. Additionally, local regulations and soil conditions should also be taken into consideration when determining the appropriate bedding and backfill materials for ductile iron pipe installations.

Q: Are ductile iron pipes resistant to chemicals?: Yes, ductile iron pipes are highly resistant to a wide range of chemicals, making them suitable for various applications involving corrosive substances.

Q: Are ductile iron pipes suitable for wastewater systems?: Yes, ductile iron pipes are suitable for wastewater systems. They have high strength, durability, and corrosion resistance, making them ideal for handling the demanding conditions and harsh environment typically found in wastewater systems. Additionally, ductile iron pipes have good joint integrity, which ensures leak-free connections and minimizes maintenance requirements in wastewater applications.

Q: Can ductile iron pipes be used for bridge crossings?: Ductile iron pipes are indeed suitable for bridge crossings. This material is widely used in various applications, such as water and wastewater systems, due to its strength and durability. When it comes to bridge crossings, ductile iron pipes offer numerous advantages. They possess high tensile strength, enabling them to handle the load and stress imposed by the bridge structure. In addition, they are highly resistant to corrosion, making them well-suited for environments where bridges may be exposed to moisture and other harsh conditions. Moreover, ductile iron pipes have the capability to withstand seismic activity, making them a dependable choice for areas prone to earthquakes. Overall, ductile iron pipes are a reliable and appropriate option for bridge crossings due to their strength, durability, resistance to corrosion, and ability to withstand seismic activity.

Q: What is the maximum allowable deflection for ductile iron pipes?: The maximum allowable deflection for ductile iron pipes is typically specified by industry standards and guidelines, such as those provided by the American Water Works Association (AWWA) and the Ductile Iron Pipe Research Association (DIPRA). These standards specify the maximum allowable deflection as a percentage of the pipe's outside diameter. According to AWWA C150/A21.50 and DIPRA's Technical Bulletin No. 10, the maximum allowable deflection for ductile iron pipes can vary depending on factors such as pipe size, wall thickness, and soil conditions. However, a common rule of thumb is that the maximum allowable deflection should not exceed 3% of the pipe's outside diameter. It is important to note that exceeding the maximum allowable deflection can result in potential structural issues and reduced performance of the ductile iron pipe. Therefore, it is crucial to adhere to the industry standards and guidelines to ensure the proper installation and functioning of ductile iron pipes.

Q: Can ductile iron pipes be used in coastal or marine environments?: Yes, ductile iron pipes can be used in coastal or marine environments. Ductile iron is a type of cast iron that has been treated with magnesium to give it enhanced strength, ductility, and resistance to corrosion. This makes it suitable for use in environments with high levels of moisture, such as coastal or marine areas. Coastal and marine environments are known for their high levels of saltwater, which can cause corrosion in metal pipes. However, ductile iron pipes have excellent corrosion resistance due to their protective coating. This coating acts as a barrier between the pipe and the corrosive elements present in saltwater, preventing the formation of rust and extending the lifespan of the pipes. Furthermore, ductile iron pipes can withstand the high pressures and stresses associated with coastal and marine applications. They have a high tensile strength, allowing them to handle the weight of soil, rocks, and other materials that may be present in these environments. Additionally, ductile iron pipes are resistant to damage from external forces, such as waves or debris, making them a reliable choice for coastal or marine projects. In summary, ductile iron pipes are a suitable choice for coastal or marine environments due to their corrosion resistance, high tensile strength, and durability. They can reliably transport water or other fluids in these challenging environments while maintaining their structural integrity over an extended period of time.

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