DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN700

DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN700

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 32 pc

Supply Capability:: 3000 pc/month

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Ductile Iron Pipe On Sale Made In China DN100

· 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:Is there any cast iron pipe used in the fire hose?: No, I think so. In theory, you can.See if the specifications have any requirements for the material.

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 typical joint restraint requirements for ductile iron pipes?: The typical joint restraint requirements for ductile iron pipes involve the use of mechanical joint restraints, such as thrust blocks or tie rods, to prevent the pipe from separating or moving under internal pressure or external forces. These restraints ensure the stability and integrity of the pipeline system.

Q:How are ductile iron pipes installed?: Typically, the installation of ductile iron pipes follows a specific process. Firstly, the required depth and width of the trench are excavated. Careful leveling and compaction of the trench's bottom then establish a stable foundation. Next, a bedding material, usually a mixture of sand and gravel, is placed at the trench's bottom. This material supports the pipe and distributes the load evenly, while also safeguarding it from any sharp objects in the soil. Once the bedding is prepared, the ductile iron pipes are gently lowered into the trench and aligned as desired. Proper alignment and the correct slope are essential for efficient water flow. Subsequently, the pipes are joined together using either a mechanical joint or a push-on joint system. These joints are designed to create a secure, leak-free connection between the pipes. Rubber gaskets are typically used to seal the joints and establish a watertight seal. After joining the pipes, the trench is backfilled with the excavated soil. Care is taken to compact the soil in layers to prevent settlement. The backfilling process is typically carried out in stages to ensure proper compaction. Lastly, the installation is completed by connecting the ductile iron pipes to the existing water supply system or other pipes using appropriate fittings and valves. Pressure testing may also be conducted to verify the installation's integrity. In conclusion, the installation of ductile iron pipes necessitates meticulous planning, precise alignment, and secure jointing to establish a durable and dependable water supply system.

Q:What are the common methods for cutting ductile iron pipes?: Cutting ductile iron pipes can be done using various methods, depending on the specific requirements and available tools. 1. For smaller diameter pipes, a hand saw with a carbide-tipped blade is commonly used. However, this method requires physical effort and can be time-consuming. 2. A more efficient option is using a reciprocating saw with a diamond or carbide abrasive blade. This power tool allows for faster cutting and requires less physical effort. 3. Another popular method is using a cut-off saw, also known as a chop saw or disc cutter. Equipped with a diamond or abrasive blade, this power tool provides precise and fast cuts, making it suitable for both small and large diameter pipes. 4. Cutting larger diameter ductile iron pipes can be achieved using a band saw with a bi-metal or carbide-tipped blade. This method allows for clean and precise cuts, but it may require specialized equipment and expertise. 5. In cases where other cutting tools are not available, a grinding wheel with a diamond or abrasive disc can be used for cutting smaller diameter pipes. It is crucial to follow proper safety precautions when cutting ductile iron pipes. This includes wearing appropriate protective gear and using clamps or vices to secure the pipe during cutting. It is also recommended to consult professionals or refer to manufacturers' guidelines for specific recommendations on cutting ductile iron pipes.

Q:How do ductile iron pipes perform in acidic soil conditions?: Ductile iron pipes are known for their durability and resistance to various environmental conditions, including acidic soil conditions. When exposed to acidic soil, ductile iron pipes demonstrate excellent corrosion resistance due to their unique composition and protective coating. The high carbon content in ductile iron pipes provides them with inherent resistance to corrosion, even in acidic environments. Additionally, the pipes are typically lined with cement mortar or a suitable epoxy coating, which acts as an additional layer of protection against acid attack. The combination of the high carbon content and protective coating creates a barrier that prevents the acid from directly contacting the iron, thus minimizing the risk of corrosion. This ensures that the pipes remain structurally sound and maintain their integrity over an extended period of time. Furthermore, ductile iron pipes have a long service life and are designed to withstand a wide range of soil conditions. Their inherent strength and flexibility enable them to endure the stresses and strains caused by the surrounding soil, including acidic soil environments. This makes them an ideal choice for applications where the soil has a higher acidity level. It is important to note that while ductile iron pipes perform well in acidic soil conditions, the severity and concentration of the acid can impact their performance. In extremely aggressive or highly concentrated acidic environments, additional corrosion protection measures may be necessary, such as the use of sacrificial anodes or cathodic protection systems. In conclusion, ductile iron pipes are highly resilient and perform exceptionally well in acidic soil conditions. Their corrosion resistance, combined with their robust structure and protective coating, ensures their longevity and reliability, making them a preferred choice for various applications in such environments.

Q:What are the recommended bedding and backfill materials for ductile iron pipe?: The recommended bedding and backfill materials for ductile iron pipe typically include a layer of granular material, such as sand or pea gravel, for bedding and a layer of compacted soil or select backfill material for backfilling. This helps to distribute load and protect the pipe from external forces while maintaining stability and preventing damage.

Q:What are the different pressure ratings available for ductile iron pipe?: Ductile iron pipe is commonly used in various applications due to its strength, durability, and resistance to corrosion. The pressure ratings for ductile iron pipe depend on various factors such as the diameter and wall thickness of the pipe. Generally, ductile iron pipe is available in pressure ratings ranging from 150 psi (pounds per square inch) to 350 psi. For smaller diameter pipes, typically ranging from 3 inches to 24 inches, the pressure ratings commonly found are 150 psi, 200 psi, and 250 psi. These pressure ratings are suitable for a wide range of applications such as water distribution systems, sewer lines, and industrial piping. For larger diameter pipes, typically ranging from 30 inches to 64 inches, the pressure ratings available are usually 150 psi, 200 psi, 250 psi, and 350 psi. These higher pressure ratings are often required for transporting larger volumes of water or other fluids over longer distances. It is important to note that the pressure ratings for ductile iron pipe are determined based on industry standards and guidelines. These standards ensure that the pipe can safely handle the internal pressure and external loads it may encounter during operation. When selecting the appropriate pressure rating for ductile iron pipe, it is crucial to consider factors such as the specific application, flow rates, and the expected operating conditions. Consulting with industry professionals and adhering to local codes and regulations is essential to ensure the proper selection and installation of ductile iron pipe for a specific project.

Q:What is the expected roughness coefficient of ductile iron pipes?: The roughness coefficient of ductile iron pipes can differ based on different factors like pipe diameter, age, and condition, resulting in variations. However, typically, the roughness coefficient for ductile iron pipes falls within the range of 0.01-0.015 mm. This value signifies the average roughness of the pipe's internal surface and plays a crucial role in hydraulic calculations for establishing the flow characteristics and pressure losses within the pipe network. It is worth mentioning that these values are approximate and subject to change depending on specific pipe conditions and applications.

Q:What is the maximum operating pressure for ductile iron pipes?: The maximum operating pressure for ductile iron pipes can vary depending on factors such as pipe diameter, wall thickness, and the specific application. However, in general, ductile iron pipes are designed to withstand pressures up to 350 psi (pounds per square inch) or even higher in some cases. It is important to note that local regulations, engineering standards, and manufacturer specifications should be consulted to determine the maximum operating pressure specific to a particular ductile iron pipe system.

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