DUCTILE IRON PIPES AND PIPE FITTINGS K7 DN450

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t

Supply Capability:: 30000 m.t/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 is the process of fusion bonding for ductile iron pipes?: Fusion bonding for ductile iron pipes is a process that involves heating the pipes to a specific temperature and then applying pressure to fuse the ends of two pipes together. This creates a strong and durable bond between the pipes, ensuring a leak-proof connection. The fusion bonding process is commonly used in the construction and maintenance of underground water and sewer systems.

Q:Why is the sound speed of nodular cast iron lowered after heat treatment?: After the heat treatment, the microstructure of the material changes, the graphite changes, eliminating the internal stress of molecules, thus slowing down the speed.

Q:What are the different methods for testing ductile iron pipe?: There are several methods available for testing ductile iron pipe to ensure its quality and reliability. These methods include: 1. Hydrostatic Testing: This is the most common method used for testing ductile iron pipe. It involves filling the pipe with water and pressurizing it to a specified level. The pipe is then inspected for any leaks or deformations under the applied pressure. Hydrostatic testing helps determine the pipe's ability to withstand internal pressure without failure. 2. Tensile Testing: This method involves subjecting a sample of the ductile iron pipe to a gradually increasing tensile load until it fractures. The test measures the ultimate tensile strength, yield strength, and elongation of the material. Tensile testing helps evaluate the pipe's mechanical properties and its ability to withstand tension without breaking. 3. Hardness Testing: This method measures the hardness of the ductile iron pipe using various techniques such as Brinell, Rockwell, or Vickers hardness tests. Hardness testing provides information about the material's resistance to deformation, wear, and fatigue. It helps assess the pipe's durability and resistance to external forces. 4. Impact Testing: This method involves striking a notched sample of the ductile iron pipe with a pendulum or falling weight to measure its impact resistance. The test determines the material's ability to absorb energy during sudden loading or impact. Impact testing helps evaluate the pipe's ability to withstand accidental impacts or dynamic loads. 5. Ultrasonic Testing: This non-destructive testing method uses high-frequency sound waves to detect internal defects or discontinuities in the ductile iron pipe. Ultrasonic testing can identify voids, cracks, or inclusions that may affect the pipe's structural integrity. It helps ensure the pipe's soundness and reliability. 6. Magnetic Particle Testing: This method is primarily used for detecting surface or near-surface defects in the ductile iron pipe. It involves applying a magnetic field to the pipe and then applying magnetic particles to the surface. Any defects present will cause the magnetic particles to gather and form visible indications. Magnetic particle testing helps identify surface cracks, laps, or other defects that may affect the pipe's performance. These different testing methods help ensure that ductile iron pipe meets industry standards and specifications, ensuring its quality and reliability in various applications.

Q:What is the typical lifespan of ductile iron pipe?: The lifespan of ductile iron pipe can differ based on several factors, including the pipe's quality, the conditions it faces, and the maintenance practices employed. On average, ductile iron pipe typically lasts about 100 years. This longevity is a result of its inherent strength and durability, allowing it to withstand high pressure and various environmental conditions. Furthermore, ductile iron pipe is often coated with protective materials like cement mortar lining or polyethylene encasement, which further enhance its durability. Regular inspections and maintenance can also contribute to extending the lifespan of ductile iron pipe by promptly identifying and addressing any issues or potential damages.

Q:Can ductile iron pipes be used for agricultural applications?: Certainly, agricultural applications can make use of ductile iron pipes. Ductile iron, being a robust and long-lasting material, possesses a corrosion-resistant property that renders it appropriate for diverse agricultural purposes. These pipes are applicable for irrigation systems, drainage systems, water supply systems, and other agricultural infrastructure projects. With their exceptional tensile strength, ductile iron pipes can endure the external pressures and stress that agricultural environments may impose. Furthermore, their prolonged lifespan lessens the necessity for frequent replacements, and they are capable of accommodating high water flow rates. Consequently, ductile iron pipes emerge as a dependable choice for agricultural applications.

Q:What are the different corrosion protection options for ductile iron pipe?: There are several corrosion protection options available for ductile iron pipe to ensure its longevity and durability. These options include: 1. Cement Mortar Lining: This involves coating the inner surface of the pipe with a layer of cement mortar, which acts as a barrier between the pipe and corrosive elements in the water or soil. Cement mortar lining provides excellent corrosion resistance and can last for several decades. 2. Polyethylene Encasement: This method involves wrapping the ductile iron pipe with a layer of polyethylene material. The polyethylene acts as a physical barrier, protecting the pipe from external corrosive elements. Polyethylene encasement is commonly used in aggressive soil conditions and can offer long-lasting protection. 3. Internal and External Coatings: Various types of coatings can be applied to the inner and outer surfaces of the ductile iron pipe to provide corrosion resistance. These coatings can be epoxy, polyurethane, or fusion-bonded epoxy (FBE) coatings. These coatings create a barrier between the pipe and the surrounding environment, preventing corrosion. 4. Cathodic Protection: This method involves using an electrical current to protect the pipe from corrosion. Cathodic protection systems can be either galvanic (sacrificial anode) or impressed current systems. These systems direct the flow of electrons to prevent the oxidation of the ductile iron pipe. 5. Zinc Coating: Zinc coating, also known as galvanizing, involves applying a layer of zinc to the surface of the ductile iron pipe. The zinc acts as a sacrificial anode, corroding instead of the iron pipe. Zinc coating provides effective corrosion protection, particularly in soil conditions with low resistivity. It's important to note that the choice of corrosion protection option for ductile iron pipes depends on various factors such as the environment, water chemistry, soil conditions, and expected service life. Consulting with corrosion protection specialists and engineers can help in selecting the most suitable option for specific applications.

Q:Usage of ductile iron pipe expander: Spheroidal graphite iron expander, also known as cast iron telescopic device, is a new type of pipe connector.

Q:Is the crankshaft material forged or ductile iron?: Cast iron can not be forged, only steel, malleable iron can not be forged, only the crankshaft is particularly hot, can not meet the strength of the hardening when forging

Q:The difference between flexible joint cast iron pipe and flexible anti-seismic cast iron pipe: Nodular cast iron pipes and fittings technical manual PDF download Fan Yingjun handsome date: Author: fan manufacturing technology, in January 2006, this book introduces the ductile iron pipe interface form, quality standard, installation technology and special use of ductile cast iron pipe and other content, lists all the technical parameters for ductile iron pipes, pipe fittings interface in order to facilitate the readers to use and accessories

Q:Are ductile iron pipes suitable for potable water applications?: Ductile iron pipes are indeed suitable for potable water applications. Their reliability and durability have been demonstrated through their longstanding use in water distribution systems. These pipes exhibit a commendable resistance to corrosion, a crucial factor in upholding the quality of drinking water. Moreover, ductile iron pipes possess a high tensile strength, reducing the likelihood of breakage or leakage. Furthermore, their smooth interior surface aids in maintaining optimal water flow and preventing the accumulation of deposits or contaminants. In conclusion, ductile iron pipes are an appropriate selection for potable water applications due to their impressive strength, durability, and corrosion resistance.

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