Ductile Iron Pipe DN100-DN300 ISO2531:2009 for Water Supply

Ductile Iron Pipe DN100-DN300 ISO2531:2009 for Water Supply

Ref Price:: $450.00 - 630.00 / m.t.

Loading Port:: China main port

Payment Terms:: TT or LC

Min Order Qty:: 20 m.t.

Supply Capability:: 200000 m.t./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.We have passed ISO9001,ISO14001,OHSMS18001 certificate.

2,Main Features of the Ductile Iron Pipe:
1).Quality guarantee
• Chemical checking
• NDE after rough machining
• Mechanical testing after heat treatment
2).Quality document
• Full Q.A document as per client request
3).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.
4).Packing and Shipping
• standard export package(carton/wooden case/pallet)
• accept FOB,FAS,CNF,CIF door to door etc or customer designated shipping agent
3,Ductile Iron Pipe Images:

Ductile Iron Pipe DN100-2000 ISO2531:2009 for Water Supply

4. Ductile Iron Pipe Specification:
Surface Finishes: Bare, Oiled, Mill Varnish, Galv,FBE, FBE Dual, 3LPE, 3LPP, Coal Tar,Concrete Coating and Tape Wrap
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
5.FAQ:
We have organized several common questions for our clients，may help you sincerely：
1.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.

2.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.

Q: Are ductile iron pipes suitable for trenchless installation methods?: Yes, ductile iron pipes are suitable for trenchless installation methods. Ductile iron pipes are known for their strength, durability, and flexibility, making them ideal for trenchless installation methods such as horizontal directional drilling (HDD) and pipe bursting. HDD involves drilling a small pilot hole underground and then pulling the ductile iron pipe through the hole, without the need for extensive trenching. Ductile iron pipes can withstand the pulling forces exerted during this process and can be easily guided through the underground path. Pipe bursting is another trenchless method where an existing pipe is replaced by breaking it apart while simultaneously pulling a new ductile iron pipe into place. The strength and flexibility of ductile iron pipes allow them to withstand the force required to burst the existing pipe and replace it with minimal disruption to the surrounding area. In both these trenchless installation methods, ductile iron pipes offer several advantages. They have a high resistance to corrosion and can withstand high-pressure applications, making them suitable for a wide range of underground environments. Ductile iron pipes also have a long service life, reducing the need for frequent replacement and maintenance. Overall, ductile iron pipes are a reliable and suitable choice for trenchless installation methods, providing efficient and cost-effective solutions for underground pipe installations.

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?: In order to meet the joint restraint requirements for ductile iron pipes under pressure, there are two common options available: mechanical joint restraints and restrained joint systems. These restraints are essential to prevent separation or pulling apart of the pipes caused by internal pressure. A mechanical joint restraint, which is widely used, involves a series of bolts and clamps that securely hold the pipes together. These restraints are applied at each joint of the ductile iron pipes to ensure a tight and secure connection. By providing axial restraint, they prevent the pipes from separating along the pipe axis. Another option is the restrained joint system, which offers both axial and angular restraint. This system includes a specially designed joint that consists of a gasket, a restraining gland, and a series of bolts or wedges. The gasket ensures a watertight seal, while the restraining gland and bolts/wedges restrain the pipe joints, preventing separation under pressure. The specific requirements for joint restraints may vary depending on factors such as the pipe's diameter, wall thickness, and operating conditions. To determine the appropriate joint restraint system for a specific application, it is crucial to consult the manufacturer's guidelines and industry standards. Furthermore, proper installation and maintenance of the joint restraints are essential to ensure their effectiveness and longevity in restraining the pipes.

Q: Are ductile iron pipes suitable for pressure sewer systems?: Yes, ductile iron pipes are suitable for pressure sewer systems. Ductile iron pipes have excellent strength and durability, making them capable of withstanding high pressure and stress levels. Additionally, they have a smooth interior surface that promotes efficient flow and reduces the risk of clogs. These qualities make ductile iron pipes a reliable choice for pressure sewer systems.

Q: Are ductile iron pipes suitable for bridge piers or abutments?: Yes, ductile iron pipes are suitable for bridge piers or abutments. Ductile iron is known for its high strength and durability, making it a reliable choice for supporting heavy loads in bridge construction. Additionally, ductile iron pipes are corrosion-resistant, which is crucial for structures exposed to moisture and environmental factors.

Q: How does ductile iron pipe handle changes in pipe diameter or size?: Ductile iron pipe is capable of handling changes in pipe diameter or size quite effectively. It has the advantage of being highly flexible and resistant to deformation, allowing it to accommodate variations in pipe dimensions without compromising its structural integrity. This flexibility is particularly beneficial in situations where there are thermal expansions or contractions, ground movement, or other external factors affecting the pipe's diameter. Overall, ductile iron pipe's ability to handle changes in size makes it a reliable and durable choice for various piping applications.

Q: What is the expected joint deflection of ductile iron pipes?: The expected joint deflection of ductile iron pipes depends on various factors such as the diameter of the pipe, the type of joint used, and the specific conditions of the installation. In general, ductile iron pipes are designed to accommodate some degree of deflection at the joints to allow for flexibility and movement. The American Water Works Association (AWWA) provides guidelines for the maximum allowable joint deflection for ductile iron pipes. According to AWWA C151/A21.51, the maximum deflection at the joint should typically not exceed 3 degrees or 1% of the nominal pipe diameter, whichever is greater. It is important to note that joint deflection should be within the specified limits to ensure the structural integrity and performance of the pipeline system. Excessive joint deflection can lead to leaks, failures, and reduced lifespan of the pipes. To determine the exact expected joint deflection for a specific installation, it is best to refer to the manufacturer's specifications and guidelines, as they may vary depending on the pipe size, joint type, and other factors. Consulting with a qualified engineer or contacting the manufacturer directly can provide more accurate information tailored to the specific project requirements.

Q: What are the advantages and disadvantages of spheroidal graphite cast iron?: As a substitute for steel, man developed ductile iron in 1949. The carbon content of cast steel is less than 0.3%, while that of cast iron and ductile iron is at least 3%. The low carbon content in cast steels makes the carbon free of graphite free of structural flakes. The natural form of carbon in cast iron is the form of free graphite flakes. In ductile iron, the graphite flakes change into tiny spheres by special treatment. The improved sphere makes ductile iron more superior in physical properties than cast iron or steel. It is the globular microstructure of this kind of carbon that makes ductile iron more ductile and impact resistant, while the thin form of cast iron causes the cast iron to be free of ductility. The best ductility can be obtained by ferrite matrix.

Q: Are ductile iron pipes suitable for use in wastewater treatment plants?: Yes, ductile iron pipes are suitable for use in wastewater treatment plants. Ductile iron has excellent corrosion resistance, high strength, and durability, making it ideal for handling the harsh and corrosive environment found in wastewater treatment plants. Additionally, ductile iron pipes have a long lifespan and can withstand the high-pressure demands of wastewater systems, making them a reliable choice for this application.

Q: Can ductile iron pipes be repaired if they get damaged?: Yes, ductile iron pipes can be repaired if they get damaged. The repair process involves identifying the damaged portion of the pipe and assessing the severity of the damage. If the damage is minor, it can be repaired using various techniques such as welding or epoxy lining. For more extensive damage, sections of the pipe may need to be replaced. Pipe repair professionals have the expertise and equipment to identify and fix damaged ductile iron pipes, ensuring their continued functionality and longevity.

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