The frost resistance and heat resistance of UPVC pipe are not good. So hot and cold water pipes are rarely used. PVC pipes are suitable for electric wires and sewage pipes. Scientific and technological research found that phthalein is a chemical additive that can soften PVC, which has great influence on human kidney, liver and testis, leading to cancer and kidney damage, destroying human functional reconstruction system and affecting development.
2.PPR pipe
A new water pipe material, which can be used as cold pipe or hot water pipe, has become a popular material because of its non-toxicity, light weight, pressure resistance and corrosion resistance. It is also suitable for hot water pipes and even pure drinking water pipes. The interface of PPR pipe adopts hot melting technology, and the pipes are completely fused together. Once the installation and pressure test pass, it will not age and leak like aluminum-plastic pipes, and PPR pipes will not scale.
3. Lead pipe
Polybutylene (PB) resin was first synthesized by Italian professor G.Natta in 1954, and industrial production began in 1964. 1965, the first polybutylene (PB) heating pipeline system appeared in Austrian Plastics Association. What is exciting is that this system is still running today. In the following 50 years, the application of polybutylene (PB) pipeline system became more and more popular.
4.PE-RT tube
PE-RT is heat-resistant polyethylene, which is the abbreviation of heat-resistant polyethylene. It is a kind of non-crosslinked polyethylene, which can be used for hot water pipes. Some people highlight its non-crosslinked characteristics and call it "high temperature resistant non-crosslinked polyethylene".
5、PPH
The high-density polypropylene pipes for drainage pipes, waste water pipes, rainwater pipes and exhaust pipes shall meet the requirements of DIN 53457 (ISO/R1133, ISO/R 179, RAL), and their connection methods shall adopt electric welding sleeves and butt joints as far as possible.
6. Polypropylene -B
Because welding technology was used in the construction. So it is also commonly known as hot melt tube. It is non-toxic, light, pressure-resistant and corrosion-resistant, and it is becoming a popular material, but it is still used less in decoration projects. Generally speaking, this material is not only suitable for cold water pipes, but also for hot water pipes and even pure drinking water pipes.