What is the difference between PVC pipe and ppr water supply pipe

2021/07/01 16:07

Performance characteristics of PVC pipe production equipment:

1. Light weight, convenient loading and unloading: PVC pipe is light in material, convenient to carry and construct, and save effort.

2. Excellent chemical resistance: PVC pipes are acid-resistant, alkali-resistant, and corrosion-resistant, suitable for the chemical industry.

3. Low fluid resistance: The wall surface of the PVC pipe is smooth and the fluid resistance is low. Its roughness coefficient is only 0.009, which is lower than other pipes. Under the same flow rate, the pipe diameter can be reduced.

4. High mechanical strength: PVC pipe has good water pressure resistance, external pressure resistance, impact resistance and other properties. Suitable for pipeline engineering under various conditions.

5. Good electrical insulation; PVC pipes have good electrical insulation and are suitable for wires and cables, as well as building wiring and pipes.

6. No effect on water quality: The dissolution test proves that PVC pipe has no effect on water quality and is currently a good pipe for tap water pipes.

7. Simple construction; the construction of PVC pipe joints is quick and convenient, and the construction cost is low. PVC pipes are suitable for tap water engineering, electrical engineering, construction engineering, sewer engineering, telecommunications engineering, caisson engineering, salt water engineering, natural gas engineering, chemical plants, papermaking engineering, brewing and fermentation plants, electroplating plants, agricultural parks, mines, aquaculture, Road engineering, golf course engineering, fishing plastic rafts and other occasions.

As a new type of pipe, PP-R pipe has the following performance characteristics:

1. Energy-saving PP-R pipe production energy consumption is only 20% of steel pipe, and its low thermal conductivity [0.2W/(M.K)] is only 1/200 of steel pipe. It is used in hot water system to greatly reduce heat loss.

2. Use PP-R pipes for corrosion resistance, dirt-free, sanitary, non-toxic use to avoid secondary pollution of water quality caused by inner wall dirt and rust caused by galvanized steel pipes. PP-R components are simple, the basic components are carbon and hydrogen, comply with food hygiene regulations, non-toxic, and suitable for drinking water transportation.

3. The long-term use temperature of the PP-R pipe with heat resistance, pressure resistance and long life can reach 95℃, and the short-term use temperature can reach 120℃. Under the conditions of operating temperature of 70℃ and working pressure of 1.2MPa, long-term continuous use, the service life can reach more than 50 years.

4. The density of PP-R pipe with light weight, high strength and low fluid resistance is only 1/8 of that of metal pipe. The pressure test strength is as high as 5Mpa, with good toughness and impact resistance. Because the inner wall is smooth and rusty, it does not scale, and the fluid resistance is small.