China PVC-U Pipe Manufacturer, Supplier, Factory

The key distinction lies in graphite morphology: cast iron pipe has flake graphite, making it brittle, while ductile iron pipe forms nodular graphite via magnesium/cerium addition, combining corrosion resistance with steel-like strength and ductility.In performance, ductile iron pipe excels with higher strength, toughness, lighter weight, and superior pressure/impact resistance, enabling easier installation; cast iron pipe is stiff, brittle, and heavy, prone to fracture.Consequently, applications diverge: ductile iron dominates pressurized systems (e.g., water/gas mains); cast iron is relegated to drainage or noise-sensitive niches.

Pipeline installation machines and tools are essential equipment used to lay, align, join, and secure pipes in industries such as water supply, oil and gas, sewage, and construction. From trenchless systems to large-scale infrastructure projects, these tools ensure safe, efficient, and accurate pipe deployment—above or below ground.

PE pipes are flexible, freeze-resistant, and ideal for fuel/solvent transport or buried installations, while uPVC pipes are rigid, low-cost, and suited for cold-water plumbing/drainage but brittle in sub-zero temperatures.

The sealing principle of the GT type interface of GT type ductile iron pipe is similar to that of the T type interface. As the internal pressure of the pipeline increases, the tighter the contact surface between the rubber ring sealing sleeve and the socket, the better the sealing effect.

​Installing pipelines on a construction site is a technical job, but now there are various professional equipment to help. These tools are like the "magic weapon" of plumbers, making the processes of burying pipes and docking much easier.

The company focuses on the research, production and sales of ductile iron pipes. It can produce 26 types of centrifugal ductile iron pipes with diameters ranging from DN80 to 2600 mm, and also has the capability to provide supporting products such as mineral resources, casting pipe fittings and casting gaskets. It is one of the manufacturers in China that can provide a wide range of ductile iron pipe products.