China PVC-M Pipe Manufacturer, Supplier, Factory

The selection of urban water supply pipelines usually depends on the following factors: Material: Commonly used water supply pipeline materials include steel pipes, cast iron pipes, plastic pipes (such as PVC, PE, PPR), etc. Different materials have different characteristics, such as durability, corrosion resistance, and scope of application.

Choosing between K7 and K9 requires a comprehensive assessment of design pressure, safety factors, environmental risks, and lifecycle costs. In conventional municipal engineering, K9 is the preferred choice due to its reliability and versatility. K7 requires careful evaluation of operating conditions to avoid pipe failure risks from excessive thinning. Both classes reflect the core design logic of ductile iron pipes—trading wall thickness for structural strength—offering a technical classification system that balances safety and cost efficiency.

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.

​All those who are engaged in engineering procurement know that Carbon Steel Pipes and Stainless Steel Pipes are the two most commonly used metal pipes. Although they both look like iron pipes, their performance and price are quite different. Choosing the right one can save a lot of money.

Valves play a very important role in urban water supply systems. Generally speaking, valves are used to control the direction, speed and pressure of water flow to ensure that water can flow smoothly to various areas and buildings in the city. Valves can also be used to close or open pipes, maintain and repair water pipes, adjust water pressure, and respond to emergencies (such as leaks or pipe ruptures).

An All Flange Tee is a specially designed pipe branch connection characterized by its defining feature: all three ports—both ends of the main pipe run and the perpendicular branch outlet—are equipped with flanges. This configuration distinctly differentiates it from other tee fittings that may feature threaded, socket weld, or plain ends.