DUCTILE IRON PIPE AND PIPE FITTINGS K9 CLASS DN300

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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 maximum pressure rating for ductile iron pipe?: Several factors, including pipe diameter, wall thickness, and joint type, typically determine the maximum pressure rating for ductile iron pipe. Generally, manufacturers produce ductile iron pipe capable of withstanding a pressure rating of 350 psi or more. However, it is crucial to consult the specific manufacturer's specifications and guidelines to ascertain the precise maximum pressure rating for a specific ductile iron pipe.

Q: Can ductile iron be welded? Is weldability comparable to gray iron?: Suitable for the full range of cold welding welding, welding cast iron base material can almost all, and it is easy to achieve cast iron and carbon steel dissimilar metal welding, such as solving matrix fracture, crack, wear, hole filling defects after welding can be machined, many applications in the engine casing, cylinder head, casting machine, gear base the tooth of iron castings.

Q: Do ductile iron pipes require internal lining for potable water applications?: Yes, ductile iron pipes do require internal lining for potable water applications. This is because the iron used in these pipes can react with the water and potentially contaminate it. Internal lining acts as a barrier between the water and the iron, preventing any chemical reactions and ensuring the water remains safe for consumption.

Q: How are ductile iron pipes protected against external soil loads?: Ductile iron pipes are protected against external soil loads through a combination of proper installation techniques and the use of protective coatings. The pipes are installed in a manner that allows for adequate support and backfilling, which helps distribute the external soil loads evenly. Additionally, these pipes are often coated with materials such as epoxy or polyethylene to provide a barrier between the pipe and the surrounding soil, preventing corrosion and damage from external forces. This protective coating ensures the longevity and durability of ductile iron pipes in underground applications.

Q: What are the requirements for the hydrostatic test of ductile iron pipes?: The pipe work pressure P is less than 0.5MPa, the test pressure is 2P, the pipe work pressure is greater than 0.5MPa, the test pressure is P+0.5. After the water pressure rises to the test pressure, the pressure is fixed for 10 minutes, and the pipe joint and the pipe body are not damaged and leaked.

Q: When the ductile iron pipe is pressed, the three links are always running out. What should be done?: If the conventional backfill soil pressure, pipe fittings installed properly, the phenomenon will not appear.

Q: Do ductile iron pipes require concrete encasement for support?: Concrete encasement is typically necessary for providing support to ductile iron pipes. This encasement offers extra stability and strength, safeguarding the pipes against pressure-induced shifting or collapsing. Furthermore, it aids in evenly distributing the load along the pipe's length and shielding it from external forces like soil movement or heavy vehicular activity. In addition to these benefits, concrete encasement helps reduce the likelihood of corrosion or damage caused by external impacts, thereby ensuring the long-lasting durability of the ductile iron pipes.

Q: Do ductile iron pipes require internal linings or coatings?: Yes, ductile iron pipes typically require internal linings or coatings in order to prevent corrosion and extend their lifespan.

Q: What is the expected leakage rate of ductile iron pipes?: The expected leakage rate of ductile iron pipes can vary depending on various factors such as the age, condition, and installation quality of the pipes. However, on average, ductile iron pipes are known to have a relatively low leakage rate, typically ranging from 0.1 to 0.5 gallons per minute per mile of pipe.

Q: Can ductile iron pipe be used in corrosive environments?: Ductile iron pipe is capable of being utilized in environments that are corrosive. Ductile iron is renowned for its ability to withstand corrosion and has been extensively employed in diverse applications where resistance to corrosion is necessary. The resistance of ductile iron to corrosion is attributed to the formation of a natural protective oxide layer on its surface, which acts as a barrier against corrosive substances. Furthermore, ductile iron pipes can be coated with different protective coatings such as polyethylene or epoxy to augment their resistance to corrosion. These coatings furnish an additional layer of protection, rendering ductile iron pipes appropriate for deployment in highly corrosive settings like wastewater treatment plants, industrial plants, and marine applications. Nevertheless, it is crucial to take into account the specific corrosive substances present in the environment and seek guidance from experts or adhere to industry standards to guarantee the proper implementation of coating and maintenance practices for long-term performance and durability.

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