DUCTILE IRON PIPES AND PIPE FITTINGS K7 CLASS DN500

DUCTILE IRON PIPES AND PIPE FITTINGS K7 CLASS DN500

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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 requirements for the hydrostatic test of ductile iron pipes?: Hydraulic test of pipeline segment length should not be more than 1 kilometers, the test pipe should be in full of water, no pressure under the condition of full immersion, soaking time of ductile cast iron pipe without mortar lining not less than 24 hours, a mortar lining the immersion of not less than 48 hours.

Q:What are the different lining materials available for ductile iron pipe?: Some of the different lining materials available for ductile iron pipe include cement mortar lining, polyurethane lining, polyethylene lining, and epoxy lining. These linings help to protect the pipe from corrosion and extend its lifespan.

Q:How are ductile iron pipes joined to fittings and valves?: Fittings and valves are commonly connected to ductile iron pipes using either flanged connections or mechanical joints. Flanged connections involve the use of circular discs called flanges, which have evenly spaced holes around the edge. These flanges are bolted together to create a tight seal between the pipe and the fitting or valve. To connect a ductile iron pipe to a fitting or valve using a flanged connection, the pipe end is first prepared by cleaning and removing any rough edges. Then, a gasket made of rubber or another suitable material is placed between the pipe end and the flange face. The flange is aligned with the pipe, and bolts are inserted through the holes in the flange, passing through corresponding holes in the fitting or valve. Once all the bolts are in place, they are tightened evenly, gradually applying pressure to compress the gasket and create a secure, leak-proof seal. To ensure proper alignment and sealing, the bolts are typically tightened in a specific pattern or sequence. Alternatively, mechanical joints can be used to join ductile iron pipes to fittings and valves. This involves inserting a rubber gasket or gland into a groove on the pipe end. The fitting or valve also has a corresponding groove, and when the two are brought together, the gasket is compressed to create a tight seal. Mechanical joints offer some flexibility, allowing for slight movement or expansion and contraction of the pipe. This is beneficial in applications where there may be thermal variations or ground movement, as it reduces the risk of pipe failure. Both flanged connections and mechanical joints are widely used in various industries and applications that require the connection of ductile iron pipes to fittings and valves. The choice of joining method depends on factors such as the specific application, pipe size, pressure requirements, and local codes and regulations.

Q:How much is the installation fee of the 400 largest ductile iron pipe?: Compared with the PE pipe, from the installation time, ductile pipe PE pipe installation is simple and rapid, and after the installation of internal and external pressure bearing better tightness and corrosion resistance; from the point of view, ductile pipe sealing better after installation, but also can improve the corrosion resistance through various anti-corrosion methods;

Q:What is ductile iron pipe?: Ductile iron pipe is a kind of cast iron pipe. In quality, the spheroidization of cast iron pipes is controlled to be 1-3 (spheroidization rate 80%), so the mechanical properties of the material have been better improved, with the nature of iron and the properties of steel. Ductile cast iron pipe after annealing, the microstructure is ferrite and pearlite, good mechanical properties, excellent corrosion resistance, good ductility, good sealing effect, simple installation, mainly for municipal, industrial and mining enterprises, water supply, gas, oil etc..

Q:What is the expected hydraulic performance of ductile iron pipes?: The expected hydraulic performance of ductile iron pipes is generally excellent due to their smooth internal surface, which minimizes friction and pressure drop, allowing for efficient flow of water or other fluids. Additionally, their high strength and durability ensure long-term reliability and minimal leakage, making ductile iron pipes a preferred choice for water supply and drainage systems.

Q:What are the different coating thickness options for ductile iron pipe?: The coating thickness options available for ductile iron pipe can vary depending on the specific application and requirements. Typically, there are three commonly used coating thickness options for ductile iron pipe: 1. Standard Thickness: Normally, the coating thickness for ductile iron pipe falls within the range of 200 to 250 microns (8-10 mils). This thickness is generally sufficient to protect against corrosion and abrasion in most soil and water conditions. 2. Increased Thickness: In certain cases, when the pipe is exposed to more aggressive environments or requires a longer lifespan, it may be necessary to use a thicker coating. This can range from 300 to 500 microns (12-20 mils) or even more, depending on the specific requirements. 3. Specialized Coatings: For particularly demanding applications, specialized coatings may be utilized. These coatings offer even greater protection against corrosion, abrasion, or chemical exposure. The thickness of these specialized coatings can vary significantly depending on the specific coating material and application requirements. It is important to emphasize that the selection of coating thickness should be based on a comprehensive evaluation of the environmental conditions, intended lifespan, and any relevant industry standards or specifications. It is advisable to consult with a coating manufacturer or corrosion specialist to determine the appropriate coating thickness for a specific ductile iron pipe application.

Q:What are the advantages of using ductile iron pipe over HDPE pipe?: There are several advantages of using ductile iron pipe over HDPE pipe. Firstly, ductile iron pipe is known for its high strength and durability. It is able to withstand higher pressure and is less likely to leak or burst compared to HDPE pipe. This makes ductile iron pipe a reliable choice for applications where high-pressure water or gas transmission is required, such as in municipal water supply systems or industrial piping networks. Secondly, ductile iron pipe has a longer lifespan compared to HDPE pipe. It is highly resistant to corrosion and can last for several decades, even under harsh environmental conditions. This reduces the need for frequent replacements, resulting in cost savings over time. Moreover, ductile iron pipe has excellent fire resistance properties. It can withstand high temperatures without compromising its structural integrity. This makes it a reliable choice for applications where fire safety is a concern, such as in fire hydrant systems or sprinkler systems. Additionally, ductile iron pipe is known for its superior flow characteristics. Its smooth inner surface reduces friction loss, allowing for efficient and consistent flow of fluids. This is particularly important in applications where maximum flow capacity is required, such as in water distribution systems or wastewater treatment plants. Furthermore, ductile iron pipe is highly recyclable. It can be melted down and reused to manufacture new pipes, reducing the environmental impact and promoting sustainability. In conclusion, the advantages of using ductile iron pipe over HDPE pipe include its high strength and durability, longer lifespan, fire resistance, superior flow characteristics, and recyclability. These factors make ductile iron pipe a preferred choice for various applications, especially those that require high-pressure transmission, longevity, fire safety, efficient flow, and environmental sustainability.

Q:Is nodular cast iron pipe filled with Yau Ma Tei?: In many areas of our country, ductile iron pipe in the middle and small diameter to tube connected with the tube, the bearing type or flange interface method; ductile iron, angle limit must be allowed better seismic performance and sealing performance.

Q:What is the minimum operating temperature for ductile iron pipes?: Ductile iron pipes typically have a minimum operating temperature of -40 degrees Celsius, showcasing its exceptional strength and ductility in cold conditions. This makes it a versatile option for various purposes, such as water and wastewater systems. Nevertheless, it is crucial to acknowledge that the specific minimum operating temperature may differ based on factors such as the grade of ductile iron employed and the requirements of the application. It is highly advisable to refer to the manufacturer's specifications and guidelines for the appropriate utilization and optimal performance of ductile iron pipes in cold temperatures.

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