DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN800

DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN800

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 23 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:How are ductile iron pipes protected against internal corrosion caused by chemicals?: To safeguard against internal corrosion caused by chemicals, ductile iron pipes implement various protective measures. Primarily, these pipes are equipped with either a cement mortar lining or an epoxy coating, creating a barrier between the water or sewage's chemical substances and the iron material. This barrier effectively prevents direct contact, thereby averting corrosion. Additionally, a corrosion-resistant polymer or bituminous coating is frequently applied to the pipes' exterior. This supplementary layer of protection shields the pipes from potential chemical exposure originating externally. Moreover, cathodic protection is a commonly employed technique to counter internal corrosion. Sacrificial anodes, typically composed of zinc or magnesium, are affixed to the pipes. Over time, these anodes undergo corrosion instead of the iron, sacrificing themselves to safeguard the pipes against chemical-induced corrosion. Furthermore, regular maintenance and monitoring play a crucial role in the prevention and rectification of corrosion issues. This entails routine inspections, cleaning, and prompt repair of any corroded or damaged areas. Overall, the integration of lining, external coating, cathodic protection, and maintenance practices ensures the comprehensive protection of ductile iron pipes against internal corrosion caused by chemicals. This prolongs their lifespan and guarantees the integrity of the pipeline system.

Q:How is ductile iron pipe protected against external corrosion?: Ductile iron pipe is protected against external corrosion through a process called external coating. This involves applying a layer of protective coating, such as asphaltic or epoxy, on the outside surface of the pipe. The coating acts as a barrier, preventing moisture and corrosive substances from coming into contact with the iron, thus reducing the risk of corrosion. Additionally, cathodic protection methods, such as applying sacrificial anodes or using impressed current systems, may be employed to further enhance the corrosion resistance of the ductile iron pipe.

Q:How does ductile iron pipe perform in areas with high soil stability?: Ductile iron pipe excels in areas characterized by high soil stability, as it possesses inherent strength and durability. This enables the pipe to withstand the soil's pressure without experiencing significant deformation or failure. The exceptional performance of ductile iron pipe is further bolstered by the minimal ground movements, settling, or shifting that is ensured by the stable soil conditions. In regions with high soil stability, the pipe is less susceptible to external forces or stresses that could potentially inflict damage. Ductile iron pipe exhibits remarkable resistance to corrosion, abrasion, and impact, rendering it highly suitable for such circumstances. The material's robustness allows it to endure the weight and pressure exerted by the soil, thereby guaranteeing the pipe's structural integrity over time. Furthermore, the flexibility and joint design of ductile iron pipe contribute to its performance in areas with high soil stability. The pipe's capacity to accommodate slight movements and minor ground shifts without compromising its integrity is advantageous in these stable soil conditions. The restrained joint system utilized in ductile iron pipe installations provides added support and stability, thereby minimizing the risk of pipe dislocation or failure. All in all, ductile iron pipe is a dependable and efficient choice for areas characterized by high soil stability. Its strength, durability, and resistance to external forces equip it to handle the demands of such environments. Additionally, the pipe's flexibility and joint design enable it to adapt to minor soil movements, thereby further enhancing its performance in these conditions.

Q:QT400-10 nodular cast iron requires hardness of HRC47~51. Why can't quench hardness be reached?: QT400-10 shall ensure sufficient pearlite in the casting state, at least half of the pearlite. This is done with the temperature, time, and water. But if it is big, the heart hardness will not go up.

Q:Can ductile iron pipes be used for pressure surge applications?: Yes, ductile iron pipes can be used for pressure surge applications. Ductile iron pipes have excellent strength and durability, making them suitable for handling surge pressures caused by sudden changes in flow rates or water hammer events. They can withstand high internal pressures and have a high resistance to impact and fatigue. Additionally, ductile iron pipes have a smooth interior surface that allows for efficient flow of fluids, minimizing the potential for pressure surges. However, it is important to consider factors such as pipe size, wall thickness, and proper installation techniques to ensure the pipes can safely handle the specific pressure surge conditions in a given application. Consulting with a professional engineer or pipe manufacturer is recommended to determine the suitability of ductile iron pipes for pressure surge applications.

Q:How much is a ductile iron pipe dn400?: Ductile iron pipe nominal diameter is 80 ~ 2200 mm, compared with grey cast iron, high strength, good toughness, thin wall metal, less dosage, and can withstand high pressure, effective length of 5 meters, 6 meters and 8 meters; according to the different thickness of P, G two. It is the development direction of cast iron pipe.

Q:What is the expected deflection capability of ductile iron pipes?: The expected deflection capability of ductile iron pipes is typically quite high compared to other pipe materials. Ductile iron pipes have a flexible nature that allows them to withstand external loads and stresses without breaking or cracking. This flexibility enables the pipes to deflect under pressure, absorbing the force and redistributing it evenly along the pipe's length. The specific deflection capability of ductile iron pipes can vary depending on factors such as pipe diameter, wall thickness, and soil conditions. However, in general, ductile iron pipes can typically deflect up to 2% to 5% of their diameter without causing any significant damage or compromising their structural integrity. This deflection capability allows the pipes to adapt to ground movement, thermal expansion, and other external forces, making them highly resilient and reliable for various applications. It is important to note that the deflection capability of ductile iron pipes should be considered in conjunction with other design criteria, such as the depth of the pipe burial, trench width, and backfill material. Following proper installation practices and adhering to industry standards and specifications will ensure that the expected deflection capability of ductile iron pipes is optimized and maintained throughout their service life.

Q:How does ductile iron pipe perform in areas with high traffic loads?: Ductile iron pipe performs exceptionally well in areas with high traffic loads. Due to its superior strength and durability, it is highly capable of handling heavy loads and withstanding the impact caused by vehicular traffic. Ductile iron pipes have a high resistance to bending and cracking, making them ideal for applications in roadways, highways, and other high traffic areas. The high strength of ductile iron pipe allows it to distribute the weight and pressure exerted by heavy traffic loads more effectively, reducing the risk of deformation or failure. This makes it a reliable choice for transporting water, sewage, and other fluids in areas where heavy vehicles are commonly present. Additionally, ductile iron pipe has excellent corrosion resistance, which further enhances its performance in high traffic areas. It can withstand exposure to various environmental conditions, including moisture, chemicals, and abrasion, without compromising its structural integrity. This makes it a long-lasting and cost-effective solution, as it requires minimal maintenance and has a long service life. Furthermore, ductile iron pipe's smooth internal surface minimizes friction and allows for efficient flow of liquids, reducing energy consumption and maximizing the pipe's hydraulic capacity. This is particularly beneficial in areas with high traffic loads, where the demand for water or wastewater transportation is often greater. In summary, ductile iron pipe is a reliable and durable choice for areas with high traffic loads. Its strength, resistance to bending and cracking, corrosion resistance, and efficient flow characteristics make it an excellent option for transportation systems in roadways, highways, and other heavily trafficked areas.

Q:Do ductile iron pipes have inner enamel?: For fire water and living water supply, low requirement is lined with cement mortar, some high can be lined with epoxy resin, epoxy ceramic lining, as well as cement mortar lining epoxy sealing layer (compromise is the price of blame).

Q:Can the underground cast iron pipes be connected with clamps to form buttress?: The clamp hoop is a connecting device for connecting pipe fittings, valves and pipe fittings with grooves. Used in the fast joint between the role of tightening, the general two joints with gaskets, rubber, and silicone, ptfe.

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