• Ductile Iron Pipe Standard:ISO2531 Length: 6M/NEGOTIATED System 1
  • Ductile Iron Pipe Standard:ISO2531 Length: 6M/NEGOTIATED System 2
Ductile Iron Pipe Standard:ISO2531 Length: 6M/NEGOTIATED

Ductile Iron Pipe Standard:ISO2531 Length: 6M/NEGOTIATED

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China main port
Payment Terms:
TT OR LC
Min Order Qty:
500 m
Supply Capability:
100000 m/month

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1.Ductile Iron Pipe Description :

DI pipe fittings are manufactured according to ISO 2531 or BS EN545 or BS4772 FOR POTABLE WATER ,internal is cement lining or wet epoxy coating;External is zinc plus bitumen or wet epoxy  coating. We also manufacture ductile iron fittings with fusion bonded epoxy both inside and outside. All the producets are sutible to water pipes fields.We have passed ISO9001,ISO14001,OHSMS18001 certificate.

2.Main Features of the Ductile Iron Pipe:
1. Material: Ductile iron grade 500-7/ 450-10 in accordance with ISO1083
2. Standard: ISO 2531, EN545, EN598, ANSI, AWWA
3. Certificate: ISO9001, ISO14001, SGS, NSF, WRAS
4. Test: In accordance with ISO 2531 / EN 545 / EN598 and 100% water pressure test
5. Length: 6m or cut into 5.6m, 5.7m, 5.8m
6. Internal Lining: Cement, conform to ISO4179
7. External coating: Zinc + Bitumen, conform to ISO8179
3.Ductile Iron Pipe Images:

Ductile Iron Pipe Standard:ISO2531 Length: 6M/NEGOTIATED

Ductile Iron Pipe Standard:ISO2531 Length: 6M/NEGOTIATED

4.Ductile Iron Pipe  Specification:
Standard: API SPEC 5L  44th eidtion,ASTM A252-98(2007)
Grade:  A53 Grades A/B, ASTM A106 Grades B/C,ASTM A179
             AWWA, C200, ASTM A139, ASTM A120,   API 5L Grade B    
             X42, X52, X56, X60, X65, X70, X80, X100
Weld Alternatives:  LSAW
OD size range: 6.4~44.5mm
Wall thickness:  406.4~1422mm
5.FAQ:
1.Q: Why would you choose ductile iron pipe rather than other pipe materials?
A:The reasons are obvious for that not only ductile iron pipe possesses the inherent strength and flexibility of ductile iron, combined with proven corrosion protection systems, but also the cost savings can be achieved from design to installation and commissioning.
2.Q:Why can you guarantee the inner of pipes can’t be corroded?
A: High alumina cement mortar lining and sulphate-resistant cement mortar lining. These two special linings are applicable to inner anti-corrosion for sewage pipes, improving resistance to erosion of the sewage components.

Q:Can ductile iron pipes be used in areas with high temperature variations?
Ductile iron pipes are capable of being used in regions experiencing significant temperature fluctuations. These pipes possess exceptional thermal conductivity and can endure a wide range of temperature changes while maintaining their structural integrity. Their high coefficient of linear expansion enables them to adapt to temperature alterations without imposing substantial stress on the pipes. Consequently, ductile iron pipes are suitable for deployment in locales where extreme temperature variations, such as scorching summers and freezing winters, occur. Furthermore, these pipes exhibit remarkable resistance to thermal shock, enabling them to withstand abrupt temperature shifts without suffering cracks or breakages. In conclusion, ductile iron pipes are a dependable and long-lasting option for areas characterized by substantial temperature variations.
Q:How do ductile iron pipes handle seismic movements?
Ductile iron pipes are known for their excellent ability to handle seismic movements. This is due to their unique properties and construction, which make them highly resistant to stress and deformation caused by ground vibrations during earthquakes. One of the key advantages of ductile iron pipes is their high tensile strength. This means that they can withstand significant forces without breaking or rupturing. When seismic movements occur, the pipes are able to flex and absorb the energy generated by the ground vibrations, thereby minimizing the risk of damage or failure. Additionally, ductile iron pipes have excellent resilience, meaning they can return to their original shape after being subjected to external forces. This property allows the pipes to adapt to the ground movements during earthquakes and reduce the likelihood of fractures or leaks. Furthermore, ductile iron pipes have considerable ductility, meaning they can deform without fracturing. This characteristic is crucial during seismic events as it allows the pipes to absorb the energy generated by the ground vibrations by deforming and then returning to their original shape once the seismic activity subsides. To further enhance their ability to handle seismic movements, ductile iron pipes are often designed and installed with flexible joints. These joints allow the pipes to move and adjust to the ground movements, providing additional protection against damage or failure. Overall, ductile iron pipes have proven to be highly reliable and resilient in withstanding seismic movements. Their combination of high tensile strength, resilience, and ductility make them an ideal choice for regions prone to earthquakes, ensuring the safety and longevity of fluid transportation systems.
Q:What are the requirements for the hydrostatic test of ductile iron pipes?
The pipe work pressure P is less than 0.5MPa, the test pressure is 2P, the pipe work pressure is greater than 0.5MPa, the test pressure is P+0.5. After the water pressure rises to the test pressure, the pressure is fixed for 10 minutes, and the pipe joint and the pipe body are not damaged and leaked.
Q:What are some common applications for ductile iron pipe?
Ductile iron pipe is commonly used in various applications including water and wastewater systems, underground drainage systems, oil and gas pipelines, industrial piping systems, and fire protection systems. Its strength, durability, and resistance to corrosion make it suitable for these applications, ensuring reliable and long-lasting performance.
Q:How long does the cast iron pipe of indoor direct buried sewage need to be examined?
UPVC, also called hard PVC, is an amorphous thermoplastic resin made by polymerization of vinyl chloride monomer, with certain additives (such as stabilizers, lubricants, fillers, etc.). In addition to additives, the method of blending with other resins is also applied to make it have obvious practical value. These resins are CPVC, PE, ABS, EVA, MBS and so on. UPVC has high melt viscosity and poor flowability. Even if the pressure and melt temperature are increased, the fluidity is not changed. In addition, the molding temperature of the resin is very close to the thermal decomposition temperature, and the molding temperature range is very narrow. It is a difficult material to be formed.
Q:Can ductile iron pipes be used in areas with high soil erosion?
Ductile iron pipes, due to their inherent strength and durability, can be used in areas with high soil erosion. Ductile iron is a type of iron that has been treated with graphite nodules, which enhances its flexibility and tensile strength. This makes it highly resistant to cracking and breaking, even under extreme conditions. In areas with high soil erosion, the ground is prone to shifting and movement, which can put significant stress on underground pipes. However, ductile iron pipes have a high resistance to external loading and can withstand the pressures exerted by the surrounding soil. They have been extensively tested and proven to be reliable in such environments. Furthermore, ductile iron pipes have a long lifespan, often exceeding 100 years, which makes them a cost-effective choice for areas with high soil erosion. Their corrosion resistance and structural integrity make them suitable for installation in various soil conditions, including those prone to erosion. It is important to note that proper installation techniques, such as using suitable bedding and backfill materials, should be followed to ensure the optimal performance of ductile iron pipes in areas with high soil erosion. Additionally, regular inspection and maintenance should be conducted to identify any potential issues early on and prevent any damage caused by soil erosion. Overall, ductile iron pipes are a reliable and durable option for areas with high soil erosion, providing long-lasting and efficient water distribution and wastewater management systems.
Q:How does ductile iron pipe perform in sandy or unstable soils?
Due to its inherent strength and flexibility, ductile iron pipe exhibits exceptional performance in sandy or unstable soils. Its composition, which includes a combination of iron, carbon, and small amounts of other elements, grants it superior mechanical properties compared to other pipe types. In sandy soils, where the ground may shift and cause pipe movement and deformation, ductile iron's high tensile strength and elongation characteristics enable it to withstand pressure and stress without fracturing or breaking. Its flexibility allows it to accommodate soil movement and settlement, reducing the risk of pipe failure. Furthermore, ductile iron pipe's resistance to corrosion makes it highly suitable for installation in sandy soils. The application of protective linings and coatings on both the interior and exterior of the pipe prevents corrosive elements in the soil from attacking the iron, ensuring durability and reliability in the long term. In unstable soils with varying compaction levels or weak load-bearing capacity, ductile iron pipe's sturdy construction provides stability and support. Its robustness allows for even distribution of loads, minimizing the chances of pipe deflection or collapse. Moreover, the joint design and sealing methods of ductile iron pipe, such as push-on joints or mechanical joints with rubber gaskets, offer excellent leak resistance and prevent soil infiltration. This further enhances its performance in sandy or unstable soils. Overall, the combination of strength, flexibility, corrosion resistance, and reliable joint systems makes ductile iron pipe an ideal choice for applications in sandy or unstable soils. It provides a long-lasting and efficient solution for the transmission of water and wastewater.
Q:Can ductile iron pipes be used for underground drainage systems?
Indeed, underground drainage systems can utilize ductile iron pipes. Ductile iron, being a robust and enduring substance, exhibits resistance to corrosion, rendering it appropriate for subterranean applications. Possessing remarkable tensile strength, it can endure substantial loads and pressures, thereby making it an excellent choice for drainage systems that encounter significant flow rates or necessitate substantial burial depths. Moreover, ductile iron pipes boast an extended lifespan, thereby decreasing the requirement for frequent maintenance or replacement. All in all, ductile iron pipes prove to be an unwavering and efficient option for underground drainage systems.
Q:Can ductile iron pipes be used for water main extensions?
Yes, ductile iron pipes can be used for water main extensions. Ductile iron pipes are known for their strength and durability, making them a suitable choice for water main extensions. They can handle high pressure and provide resistance to corrosion, which is important for ensuring the longevity and reliability of the water distribution system. Additionally, ductile iron pipes have a smooth interior surface, reducing friction and improving water flow efficiency. Overall, ductile iron pipes are commonly used in water infrastructure projects, including water main extensions, due to their favorable mechanical properties and ability to withstand the demands of water distribution systems.
Q:Can ductile iron pipes be used for irrigation pivot systems?
Yes, ductile iron pipes can be used for irrigation pivot systems. Ductile iron pipes are known for their strength, durability, and resistance to corrosion, making them suitable for various applications including irrigation. These pipes can withstand high water pressure and provide a reliable and long-lasting solution for transporting water to irrigation pivot systems. Additionally, ductile iron pipes are also compatible with various fittings and connectors commonly used in irrigation systems, making them easy to install and maintain. Overall, using ductile iron pipes for irrigation pivot systems is a practical choice that ensures efficient water distribution and minimizes the risk of pipe failure.

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