With the increase of people's awareness of environmental protection, the health issues of drinking water have received extensive attention. In the home decoration, various new plastic pipes have replaced the traditional galvanized pipes. However, a small plastic pipe has also been asked by the university. Take the PP-R hot and cold water pipes, which are common in home decoration, as an example.
1. What is a PP-R pipe?
PP-R pipe is officially known as random polypropylene copolymer pipe, which is currently the most widely used water supply pipe in home improvement projects. The interface of the PPR pipe adopts hot-melt technology, and the pipes are completely integrated. Therefore, once the pressure test is installed, no leakage will occur and the reliability is extremely high. There are PPB and PPH on the market, which are cheap, but there is a big gap between heat-resistance and pressure-resistance performance and PPR ratio, so they should not be used as hot water pipes.
2. What is the truth about PP-R pipe on the market?
Only a few manufacturers can produce PPR raw materials, and their production capacity is limited. Authentic PPR raw materials have been underwritten by a few large PPR companies in China. Most companies can't buy PPR raw materials. Therefore, they use PPB and PPH to counterfeit PPR production and sales, and even unbranded companies use recycled materials for production.
Authentic PPR raw materials are more expensive, and if PPR tubes are very cheap, there may be problems.
3, shoddy PP-R pipe hazards?
Installation of water pipes is a concealed project. If problems arise, the problems will occur: if it is leaky, the walls will be green and musty, which will affect the beauty; in other cases, the pipes will burst, the “sweeping waterâ€, and the floor furniture will be soaked, even downstairs. lost heavily.
The inferior PP-R pipe contains a small amount of phenol and other organic components in its raw materials, and its long-term use is harmful to human health.
4, how to choose PP-R tube?
First of all, choose a nationally-renowned brand and choose quality and security (after-sales service) to see whether it has a certificate issued by the national authoritative department (China Famous Brand, China Famous Brand, etc.). Consumers can check online according to the issuing authority. Its authenticity. For example, the Weixing PP-R pipe, which is currently popular on the market, has free services such as free pressure testing and free piping diagrams in some areas.
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Second, the quality of pipes and fittings should be taken seriously. The poor plumbing has a pungent odor, especially when it is hot melted and produces black smoke. For example, Weixing and other large manufacturers with well-known Chinese trademarks generally use the PP-R pipe material produced by Basell, which is imported from Germany. It does not contain harmful substances and is green and healthy.
The water pipe is good or bad, and the pipe fittings are the most important. The quality of the pipe fittings mainly depends on the quality of the copper inserts. Good pipe fittings should have reinforced non-slip ribs, and the inner (outer) wire fittings are relatively smooth with knurled small teeth.
Thirdly, there are many colors of PP-R tubes on the market. It is recommended to choose green and other dark PP-R tubes. If you choose to use white PP-R tubes, you must use concealed tubes.
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