DUCTILE IRON PIPES AND PIPE FITTINGS K9 CLASS DN100

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 22 pc

Supply Capability:: 3000 pc/month

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Material : Ductile Cast Iron
Size Range : DN 80mm to DN 2000mm
Unit Effective Length : 6m or 5.7m
Manufacture Standard: ISO 2531:1998/ EN 545:2006/EN 598:2007
Annual capacity : 200,000 tons
Coating Exterior: Zinc 130g/m2 according to ISO 8179-1 and bitumen coating 70 microns.
Cement Interior: Portland Cement/ High Alumina Cement/ Sulphate Resisting Cement Lining according to ISO 4179
Special requirements on external coating and internal lining can be applied
We also provide accessories such as SBR/EPDM rubber gaskets, lubricant paste, pipe caps, PE sleeves, etc.

Additional Parts:

Each pipe is strictly inspected according to related standard to ensure permanently high performance.
Easy Installation at site and service free for life
Long Service Lifespan
Quotation will arrive you within 24hours once we get your inquiry.
We guarantee offering you a competitive price.
A copy of original inspection reports of pipes will be offered after shipment.
Photos of loading process will be sent to the customer after shipment effect.
We will follow-up the delivery progress after shipment effect and update to the customer on weekly basis.

Q:What are the different types of restrained joints for ductile iron pipe?: Some of the different types of restrained joints for ductile iron pipe include mechanical joints, push-on joints, and restrained push-on joints. Mechanical joints use bolts and gaskets to create a tight seal, while push-on joints rely on a rubber gasket to provide a secure connection. Restrained push-on joints incorporate additional features such as external restraints or wedges to prevent pipe movement.

Q:How do ductile iron pipes handle concentrated loads?: Ductile iron pipes are designed specifically to effectively handle concentrated loads. Their unique composition and manufacturing process give them excellent strength and durability, making them highly resistant to cracking or breaking under heavy loads. One of the main features of ductile iron pipes is their high tensile strength, allowing them to withstand concentrated loads without deforming. During the production process, small amounts of magnesium are added to cast iron, transforming the brittle graphite flakes into nodular graphite. This modification greatly enhances the material's strength and ductility, enabling it to handle concentrated loads more effectively. Furthermore, ductile iron pipes have a high modulus of elasticity, meaning they can deform elastically under a load and then return to their original shape once the load is removed. This property allows the pipes to evenly distribute the concentrated load along their entire length, reducing stress concentrations and minimizing the risk of fractures or failures. Additionally, ductile iron pipes have a thick and robust wall thickness, ensuring exceptional structural integrity. This thickness enables the pipes to bear significant loads and withstand pressure variations without compromising their overall performance. In conclusion, ductile iron pipes are engineered specifically to handle concentrated loads due to their high tensile strength, elastic deformation capabilities, and thick wall thickness. These characteristics make them a reliable choice for a variety of applications, including water and wastewater systems, as they can withstand external forces without compromising their structural integrity.

Q:How do ductile iron pipes perform in earthquake-induced ground movements?: Ductile iron pipes have been proven to be a dependable and resilient choice for underground infrastructure, even in earthquake-prone regions. The distinctive qualities of ductile iron, such as its strength and flexibility, enable it to withstand the impacts of ground movements during an earthquake. When an earthquake occurs, the ground shakes and shifts, exerting significant forces on underground pipes. Ductile iron pipes possess the ability to flex under these forces, absorbing the energy and minimizing the risk of failure. They can endure substantial ground movements without cracking or breaking, guaranteeing the uninterrupted flow of water or other fluids. Moreover, ductile iron pipes exhibit exceptional resistance to corrosion and are highly durable, making them suitable for long-term use in areas susceptible to earthquakes. This reduces the necessity for frequent maintenance or replacement, providing cost-effective and reliable solutions for infrastructure. Additionally, the joints employed in ductile iron pipe installations are designed to accommodate movement and permit slight adjustments during ground shifts. This adaptability prevents the pipes from becoming dislodged or separated, preserving the system's integrity. Overall, ductile iron pipes have a well-established reputation for their performance in earthquake-induced ground movements. They offer resilience, flexibility, and durability, ensuring the uninterrupted operation of water and sewer systems, even in areas prone to seismic activity.

Q:Are ductile iron pipes resistant to alkali attacks?: Ductile iron pipes have been proven to be highly resistant to alkali attacks. The material used in ductile iron pipes, known as ductile cast iron, is formulated with specific chemical compositions that provide exceptional corrosion resistance. This resistance extends to alkali attacks, which are chemical reactions that occur when alkaline substances come into contact with metals or other materials. Ductile iron pipes have a dense and protective oxide film on their inner and outer surfaces, which acts as a barrier against chemical attacks. This oxide film forms naturally over time, and its composition and structure provide excellent resistance to alkali attacks. Additionally, ductile iron pipes are often coated with various protective layers, such as epoxy or zinc, to further enhance their resistance to corrosion and chemical reactions. It is important to note that while ductile iron pipes are highly resistant to alkali attacks, the severity and concentration of the alkali substances can still impact their overall performance. In extreme cases, very high concentrations of alkali substances or prolonged exposure to aggressive alkaline environments may eventually cause some damage to the protective layers of the pipes. However, under normal conditions and within acceptable parameters, ductile iron pipes are considered to have excellent resistance to alkali attacks.

Q:Does the cast iron pipe need separate corrosion protection?: The pipe has been antirust in the production process and can be used directly

Q:How does ductile iron pipe perform in high-temperature steam applications?: In high-temperature steam applications, ductile iron pipe performs admirably. Ductile iron, renowned for its strength and durability, possesses the capability to endure high pressures and temperatures. When subjected to high-temperature steam, ductile iron pipes retain their structural integrity and are not easily deformed or cracked. They possess a remarkable resistance to thermal expansion and contraction, rendering them suitable for situations where temperature fluctuations are common. Furthermore, ductile iron pipes exhibit exceptional corrosion resistance, a crucial characteristic in steam applications where the presence of moisture can accelerate corrosion. All in all, ductile iron pipes are a dependable choice for high-temperature steam applications, delivering enduring performance and ensuring the secure and efficient transportation of steam.

Q:What are the specifications for the installation of water ball iron pipes?: Groove support: according to the groove soil, groundwater, slotted cross section, load conditions and other factors, the design requirements are firm and reliable, to prevent landslides, support, shall not impede the lower pipe and stable pipe.

Q:Can ductile iron pipes be used for fire protection systems?: Yes, ductile iron pipes can be used for fire protection systems. Ductile iron pipes have excellent strength and durability, making them suitable for carrying water and withstanding the pressure required in fire protection systems. Additionally, they have good corrosion resistance, which is crucial for long-term use in fire protection applications.

Q:What are the different types of joints used in ductile iron pipes?: The different types of joints used in ductile iron pipes include push-on joints, restrained joints, mechanical joints, flanged joints, and welded joints.

Q:Does the cast iron have size 250? What's the performance?: Ductile iron does not have size 250. Ductile iron is the beginning of QT, QT400-15, QT450-10, QT500-7 is the general use of nodular cast iron brand. Nodular cast iron welding can be determined, this should be in some high strength cast iron equipment used more, the tensile strength of normally ductile cast iron welding in welding is higher, is worse than the grey cast iron, it is actually very difficult to distinguish with the naked eye is ductile iron or cast iron the iron in the repair equipment, we usually use WE777 special cast iron electrode universal wide welding, but it is only for maintenance use, the effect is really good, reducing the risk of cracking and high strength welding rod matching to ensure the strength of welding seam.

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