DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN400

DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN400

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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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· 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:How to correctly measure ductile iron pipe: Ductile pipe diameter is around the tube around the peripheral measurement, use tools to gauge the inner diameter of the pipe, the length of the pipe is used to measure the ruler or tape, ductile iron pipe wall thickness can be measured directly, may also be a suitable tool for indirect measurement, the general profession will experience with project measure tube the size.

Q:How are ductile iron pipes protected from external damage?: Ductile iron pipes are protected from external damage through the application of protective coatings. These coatings act as a barrier, shielding the pipes from corrosion and other forms of external damage. Additionally, the pipes may be encased in concrete or installed in a casing pipe to provide further protection against external forces and impacts.

Q:What is the difference between ductile iron pipes and cast iron pipes?: Ductile iron pipes and cast iron pipes have different compositions, properties, manufacturing processes, and applications. Ductile iron pipes are made from a type of cast iron known as ductile iron, which contains higher levels of carbon, silicon, and other alloying elements like magnesium. On the other hand, cast iron pipes are made from regular cast iron, which has a higher carbon content and lower levels of alloying elements. In terms of properties, ductile iron pipes are recognized for their high tensile strength, flexibility, and durability. They can withstand higher pressure and have a greater resistance to impact, making them suitable for applications that demand robust performance. Conversely, cast iron pipes are more brittle and fragile, making them susceptible to cracking or breaking under pressure or impact. The manufacturing process differs as well. Ductile iron pipes are formed through centrifugal casting, in which molten ductile iron is poured into a spinning mold. This centrifugal force aids in the even distribution of the molten metal, resulting in a strong and uniform pipe. On the other hand, cast iron pipes are made using sand casting, where molten cast iron is poured into a mold made of compacted sand. This method is less precise and can result in variations in the final product. In terms of applications, ductile iron pipes are commonly used in water and sewage systems, as well as in industrial pipelines that require high-pressure resistance. Cast iron pipes, on the other hand, are typically used in non-pressure applications such as drainage systems or underground sewer lines. To summarize, ductile iron pipes and cast iron pipes differ in their composition, properties, manufacturing processes, and applications. Ductile iron pipes offer greater strength, flexibility, and durability, making them suitable for high-pressure applications, while cast iron pipes are more brittle and commonly used in non-pressure applications.

Q:Can ductile iron pipe be used for underground storage tank systems?: Yes, ductile iron pipe can be used for underground storage tank systems. Ductile iron pipe is known for its durability and strength, making it suitable for various applications, including underground storage tanks. Its high tensile strength and resistance to corrosion make it an ideal choice for containing and transporting liquids or gases in underground environments. Additionally, ductile iron pipe is highly resistant to external pressures and can withstand heavy loads, making it a reliable option for underground storage tank systems.

Q:Can ductile iron pipes be used for underground steam distribution systems?: Ductile iron pipes are well-suited for underground steam distribution systems. They belong to the cast iron family, but have been treated with magnesium to enhance their flexibility and resistance to cracking. Consequently, they can endure high pressure and temperature conditions, making them ideal for underground applications like steam distribution systems. The strength and durability of ductile iron pipes are remarkable, allowing them to withstand the extreme conditions associated with steam distribution. Moreover, their corrosion resistance properties make them a dependable choice for long-term use in underground environments. Nevertheless, it is essential to apply proper insulation to prevent heat loss and ensure the efficiency of the steam distribution system.

Q:Do ductile iron pipes require internal linings for potable water?: No, ductile iron pipes do not require internal linings for potable water.

Q:How much water seepage is allowed in the water pressure test for water hose DN300?: For water polo hose DN300, hydraulic pressure test allows water penetration to be 17.60 m3 / (24h km).The water pressure test of the indoor water supply pipeline must meet the design requirements. When the design is not specified, the test pressure of all kinds of material supply piping system is 1.5 times of the work pressure, but not less than 0.6MPa.

Q:What if the ductile iron pipe is broken?: Ductile iron pipe rupture can be repaired by using a cast iron defect repair machine, that is, a cast iron defect repair device. However, the general use of iron defects repair equipment can be repaired welding, and will not affect its use. Ductile iron pipes are used for water supply, so if it breaks, it will not be easy to handle. Make sure that the main valve is closed and repaired.

Q:Are there any limitations to the length of ductile iron pipe sections?: Limitations exist regarding the length of ductile iron pipe sections. Typically, these limitations stem from practical concerns such as transportation, installation, and handling. Longer pipe sections can present difficulties when it comes to transportation and maneuverability, particularly in areas with limited access or challenging terrain. Moreover, longer pipe sections may be more susceptible to damage during installation since proper alignment and joining can be more challenging. Manufacturing capabilities also impose limitations. Ductile iron pipes are typically produced in standard lengths, which can vary depending on the manufacturer and the specific application. These standard lengths are designed to strike a balance between transportation, installation, and overall pipe performance. In addition, longer pipe sections may pose challenges related to temperature variations and subsequent expansion and contraction. Ductile iron pipes are prone to thermal expansion and contraction, and longer sections may experience greater stress and strain as a result. Therefore, while there is no definitive maximum length for ductile iron pipe sections, practical considerations and manufacturing capabilities dictate the use of standard lengths that consider various factors such as transportation, installation, and performance.

Q:Ways of connecting ductile iron pipes: Ductile iron pipes are all made of flexible interfaces.

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