• Ductile Iron Pipe ISO2531 C CLASS DN1500 System 1
  • Ductile Iron Pipe ISO2531 C CLASS DN1500 System 2
Ductile Iron Pipe ISO2531 C CLASS DN1500

Ductile Iron Pipe ISO2531 C CLASS DN1500

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Loading Port:
China main port
Payment Terms:
TT or LC
Min Order Qty:
20 m.t.
Supply Capability:
50000 m.t./month

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1.Ductile Iron Pipe Description :
1) Pipes confirm to ISO2531,K9 class,T type joint,6m long,with inside cements lining conform to ISO4179,  outside Zinc 
spraying(130g/m2) and bitumen coating(70μm) conform to ISO8179.
2) Pipe ends: Spigot and socket ends, with 100% SBR rubber gaskets accoding to ISO4633
3) we can do third party inspection according to customer's request.

2.Main Features of the Ductile Iron Pipe:
1).Quality guarantee
•  Chemical checking
•  NDE after rough machining
•  Mechanical testing after heat treatment
•  Final NDE,dimension inspected
2).Quality document
•  Full Q.A document as per client request
3).Packing and Shipping
•  standard export package(carton/wooden case/pallet)
•  accept FOB,FAS,CNF,CIF door to door etc or customer designated shipping agent
4).Service
•  Drawing: we can translate your original drawing, offer best suggestion on design
•  Quality: we have full set quality control system to guarantee the best quality.
•  Inspection: inspect in house, all our products must be checked 3 times before packing
5)Inspection
•  In-house Foundry
•  Third party inspection available upon requirement
 

3.Ductile Iron Pipe Images:

4.Ductile Iron Pipe  Specification:
Surface Finishes: Bare, Oiled, Mill Varnish, Galv,FBE, FBE Dual, 3LPE, 3LPP, Coal Tar,Concrete Coating and Tape Wrap
End Finishes: Beveled, Square Cut, Threaded, hat
Additional Services: Internal Coating
Packaging: packed in bag, plastic bag, steel strip, steel wire,double wire, iron box, wooden box, tarpaulin, plastic 
sheeting
Inspection: MOODY SGS BV GL DNV ABS LIOYD’S
Test: X-ray, UT, magnetic particle,inspection,hydrostatic test.
Processing service: Beveling, Threading, Slotting, Cut-to length, Bends, Quench and Temper, Fabrication, Double-jointing 
and On-site assistance
Documentary: MTC, material certification,Origin certification, CI or PI,Test Report, export licence, handling order, 
B/L,insurance policy,shipping instructions, contract, packing list etc.

5.FAQ:
We have organized several common questions for our clients,may help you sincerely:
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: It's not easy to drill ductile iron with cobalt high speed steel bit. Please help to point it out
The material can be annealed and the process is simple, that is, heating the workpiece and cooling it naturally. In this way, the hardness of the workpiece can be reduced.
Q: Can ductile iron pipes be used for underground hydrocarbon pipelines?
Yes, ductile iron pipes can be used for underground hydrocarbon pipelines. Ductile iron is a strong and durable material that is commonly used in various applications including water and sewage systems, gas pipelines, and even hydrocarbon pipelines. Ductile iron pipes have excellent corrosion resistance properties and can withstand high pressures, making them suitable for transporting hydrocarbons underground. However, it is important to consider factors such as the specific composition of the hydrocarbons being transported and the environmental conditions of the pipeline route to ensure proper material selection and corrosion protection measures are implemented.
Q: How do ductile iron pipes handle water hammer in high-rise buildings?
Ductile iron pipes are known for their durability and strength, making them an excellent choice for handling water hammer in high-rise buildings. Water hammer is a common phenomenon that occurs when the flow of water in a pipe is suddenly stopped or changed direction, resulting in a pressure surge. This can cause significant stress on the pipes and potentially lead to damage or failure. Ductile iron pipes are designed to withstand high-pressure situations, making them highly resistant to water hammer. They have a high tensile strength and can handle the sudden changes in pressure without deforming or fracturing. This is particularly important in high-rise buildings where the water supply needs to be delivered to various floors with different pressures. Moreover, ductile iron pipes have excellent corrosion resistance properties, which further enhances their ability to handle water hammer. Corrosion can weaken pipes over time and make them more susceptible to failure during pressure surges. However, the corrosion resistance of ductile iron pipes ensures that they remain structurally sound even in high-pressure situations. Additionally, the flexibility of ductile iron pipes allows them to absorb and dissipate the energy generated by water hammer. This helps to minimize the impact on the overall system and reduce the potential for damage. The ability to absorb energy also helps to reduce noise and vibrations associated with water hammer, creating a more comfortable and efficient water supply system. In conclusion, ductile iron pipes are well-equipped to handle water hammer in high-rise buildings. Their strength, corrosion resistance, and flexibility make them a reliable choice for delivering water under varying pressures without compromising the integrity of the system.
Q: How are ductile iron pipes connected?
Ductile iron pipes are typically connected using several methods, including flanged joints, mechanical joints, and push-on joints. Flanged joints involve connecting two pipe sections with a flanged coupling. The pipe ends have flanges that are bolted together, creating a secure and leak-proof connection. This method is commonly used for larger diameter pipes or in applications that require a rigid joint. Mechanical joints utilize a mechanical joint gland and rubber gasket to create a watertight seal. The pipe ends are inserted into the gland, and the bolts are tightened to compress the gasket, ensuring a reliable connection. This method is often used in water distribution systems due to its flexibility and ease of installation. Push-on joints involve using a rubber gasket to create a tight seal between pipe sections. The gasket is placed in a groove on one pipe end, and the other pipe is pushed onto it, creating a compression seal. This method is quick and simple, making it suitable for various applications, including sewer systems and underground piping. Overall, the choice of connection method for ductile iron pipes depends on factors such as pipe diameter, application requirements, and installation conditions. It is crucial to follow the manufacturer's recommendations and industry standards to ensure proper installation and reliable performance.
Q: Is it better to use steel tubes or ductile iron pipes for water supply?
Flexible seamless steel pipe is good toughness, good processing, better than ductile iron corrosion resistance, the price is slightly higher;
Q: How do ductile iron pipes handle dynamic loads?
Ductile iron pipes possess remarkable strength and durability, enabling them to effectively manage dynamic loads. These pipes exhibit a high resistance to bending and can endure the pressure and stress exerted on them when exposed to dynamic loads, such as water hammer or ground movement. The distinctive composition of ductile iron, which includes a small amount of carbon and the addition of magnesium, produces a structure that is both robust and flexible. This combination allows the pipes to flex when impacted by dynamic loads, rather than fracturing or breaking like other materials. Moreover, ductile iron pipes demonstrate a superior impact resistance, enabling them to absorb and distribute the energy generated by dynamic loads throughout their structure. This capability to dissipate energy effectively minimizes the risk of pipe failure and ensures the longevity of the pipeline system. Additionally, ductile iron pipes exhibit excellent stress distribution properties, ensuring that the load applied to the pipes is evenly dispersed along their length. This feature serves to prevent localized stress concentrations and reduces the likelihood of damage or failure. To summarize, ductile iron pipes are specially designed to handle dynamic loads with utmost efficiency. Their strength, flexibility, impact resistance, and stress distribution properties make them highly suitable for applications where dynamic loads are a concern, guaranteeing the reliability and longevity of the pipeline system.
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 pipes be used for water supply in buildings?
Yes, ductile iron pipes can be used for water supply in buildings. Ductile iron pipes are known for their strength, durability, and corrosion resistance, making them suitable for a variety of applications, including water supply systems. They have a high tensile strength and can withstand high-pressure environments, making them ideal for delivering water to buildings. Additionally, ductile iron pipes have a long service life, reducing the need for frequent replacements. They also have good flow characteristics, allowing for efficient water distribution within the building. Therefore, ductile iron pipes are a reliable and commonly used choice for water supply systems in buildings.
Q: Does the cast iron have size 250? What's the performance?
1, cast iron because of low melting point, casting process performance is good, because it has been widely used.2, the relative gray iron ductile iron, have higher tensile strength and impact toughness, which has better mechanical performance.
Q: Why is the cast iron tube lined with cement? Under what circumstances are ductile iron pipes lined with cement, and under what circumstances do not have to be lined with cement?
The cement lining protects the water quality, reduces the head loss and improves the service life of the spheroidal graphite pipe. As long as the water delivery hose is used, the cement lining must be used. There is no lining cement for conveying air.

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