This article is about domestic plumbing, which you can refer to if you happen to be working on it, and if you also have problems with the procurement of pipes。
Contents
The whole article took a long time to sort and collect information, welcome to the collection and as a personal support to me
A personal point of view: it is not easy to hide dirt if it is used as a pipe and selects ppr anti-temperature materials, i. E. Double layers. Pipepipes recommend the purchase of pvc materials and flame retardation. It would be more reassuring if brands were chosen and if they were able to buy their own materials, they could go to the market。
I. What are the categories of plumbing material
Plumber material must be carefully selected and if the pipes are of poor quality, seepage and bursting results, or the fruit will not be lost. The pipes are now divided into two main categories: water supply and drainage. The main materials are stainless steel tubes, zinc plating tubes, copper tubes, upvc tubes, ppr tubes, etc. The more common ones are pp r tubes, which are also more expensive tubes。
1. 1 plumbing materials
Pipes: this is generally used for domestic water intake, and it is now common in the market to have ppr taps, which are environmentally friendly, high temperature and stress-resistant, and which are more detailed and detailed。

1. 2 drainage materials
The drainage pipes are not very high in terms of pressure capacity and environmental requirements, usually two: upvc tubes and cast iron pipes, and the drainage pipes are well classified, for example (for reference only):

Essentially, they are divided according to this specification。
And the pipes, by function, are divided into two types:
Home renovations usually take into account hot water pipes, which can withstand high temperatures, while being more flexible and resistant than cold water pipes。
Ii. Which points need to be taken into account when selecting water pipes
The quality of the pipes determines the quality of the water and does not cause the domestic water to smell plastic because of the pipes, as the saying goes: “how is the quality of the water? It is critical to look at the pipes”。
2. 1 prioritization of high brand visibility
Foreign brands:
Country-based regulatory brand:
Personally, i prefer domestic production, and there is no literature for domestic pipes to pass the test, and after-sale services are good, some imports abroad are not available, and repairs are difficult to repair。
2. 2 plumb parts are selected for the same brand as possible
In general, when water pipes are retrofitted, there are spare parts in addition to pipes, which can be difficult to match if the materials are branded differently。
So if you can choose, try to choose the same brand, including a hose, bend, inside and outside, triple, size, head, block, end of valve, s and p, twist, etc。
2. 3 prioritization of good brands close to home
The choice of brands depends more on how few water pipes are sold near your home, and how many after-sales brands offer better after-sale services, such as piped acceptance, charting, etc., than after-sale brands。
Iii. How do you choose to fix the ppr pipe, one or two
Usually, we choose ppr anti-temperature material, but we choose double layers。
With regard to the good and bad ppr pipes, you can touch the inner walls of the pipes with your hands, the smoother the inner walls, the harder it is to hide dirt。
3. 1 ppr pipeline advantages
Ppr pipes are more environmentally friendly, resistant to corrosion and have a long life (more than 50 years) and are not easy to hide dirt. Ppr pipes are given priority。
3. 2 ppr colour selection
Ppr pipes, which are super-diverse in colours (the colours are mainly differentiated functions), are the two main ones, white and green。
If the pipe is naked outside, try to select a green ppr pipe (the white ppr pipe is more likely to breed bacteria)。
It would be preferable to use all hot pipes with the same diameter, but with thicker walls。

3. 3 ppr one or two layers
The two-storey ppr tube is much lower in temperature tolerance (if water temperatures are above 75°c, no two-storey ppr tube can be used; therefore, the selection is often based on the following:
3. 4 operation and diameter
The master usually tells you it's a four or a six, which actually corresponds to 20mm and 25mm, which is understood。

It's a good example of what it means to be a pipe and a diameter:

It is more important in a pipe, which, if used in a household, usually chooses a 20-mm pipe and a 2. 8-mm wall pipe, which, of course, would be better if it were larger, such as a 25-mm pipe and a 3. 4-mm wall, which would be better but more expensive。
Personal view: most households used 4 centiplinages (20 mm pipe) more than 10 years ago, and the current household dress usually chooses 6 centiplinages (25 mm pipe) with higher intake. After all, there are many appliances such as washing machines, water heaters, dishwashers, etc. In households today, which need to be supported by greater water intake。
Iv. Recommendment of water playings by the bullet
When choosing the ppr pipe, try to select the four brands, of course, the other ones, but i prefer the four。
First: united ppr tube (recommended)
Brand history: associated plastics, leading firms in the plastic pipeline industry, have high domestic visibility and have a high market share of plastic pipes, higher than the brands of japanese fung and uesung。
There are currently 26 production bases around the world, the largest of which must be domestic in size and high productivity, including the siemens plug-in, which is partly also made up of plastics workers。

The proportion of pvc pipelines combined would be larger, and the ppr pipes would not be bad, and there would be many categories。
Pprs are evident in their overall resistance to pressure, shock and corrosion, and can withstand temperatures of about 95 degrees。

The double-coloured two-storey pp-r pipe of the diamond series, which is located at a high end, can be used in long-pressure capacity and cold and hot water, but will be more expensive at a price of about $16. 4 per metre, while the simple cold pipe is around $9. 99。
The porcelain core series of pp-r tubes, which are imported and include more glacial flexes, difficult to structure and to produce bacteria and algae. More attention should be paid to this series, where many manufacturers are false。
Attach the shop entrance:
Remarks: two 16. 65, 25 mm*3. 4 thick wall, 2. 0mpa
Include:
The ppr series and the same type of pipe can be selected from among them。
Second family: buffalo ppr pipes
A golden cow can also be chosen, a golden cow's brand can be chosen, and its ppr tube is mainly more expensive than it is, and it can be chosen if it is prepared for its own renovation。
The brand was established in 2001 as part of the jiangsu brand, which is one of the top 10 brands of the management industry。

Qualitative tests were also passed, so it was no problem from a brand perspective。

Attach the shop entrance:
Remarks: $7. 99 a metre, 20 mm (exterior) x3. 4 mm
Include:
However, it may be relatively weak if sold in combination with later consideration, and if there is a local brand to match it, so it is available and, if not, other brands。
Third family: hifon ppr
Japanese brands are also very good, as they began to produce ppr tubes in 2007 and are used in factories in fushan, tianjin, hubei, shaanxi, chongqing and so on。

At present, there is a growing production of various tubes such as ppr and pvc, and ppr classification is more common. At present there are mainly anti-bacterial tubes, double-layered tubes, single-layered tubes, all of which meet national standards in detail, and are well known in terms of durability, with better value for money than other brands。

The main type is a porcelain antibacterial tube, good quality, smooth interior, better than a normal plr tube, with a 99% antibacterial rate, but more expensive at $19 per metre。
Attach the shop entrance:
Remarks: $24 per metre, 20 mm x 2. 8 mm
Include:
The double layer, using a green inner wall, is better visualized, while preventing the growth of algae and microbes and being more resistant to pressure. Cold pipes are $6. 71 per metre and hot pipes 8. 12 per metre。
The ordinary single layer, also known as the consumable life series, is generally white, but also able to meet daily needs and at much lower prices。
Fourth home: wester ppr tube (recommended)
Wei sing, one of the largest enterprises in the domestic plastic pipeline industry, has a very high integrated quality of ppr pipes, where plastic advertising is the core product, in addition to front-loading filters, leaks, and shower-mounted products。

There are currently five production bases in the country, tianjin, shanghai, zhejiang, shaanxi and chongqing, which have considerable research and development capacity。
Attach the shop entrance:
Remarks: 2 m/g/24, 20 mm (exterior) x 3. 4 mm
Include:
There are more pprs for great stars, fewer for pvcs, and medium。
If there are sub-suppliers close to home, it's a good brand。
Small skills: what are the techniques for purchasing plumbing materials? Vi. Personal summary
These are my personal views and opinions on the domestic ppr pipes。
The selection of pipes is an important step, so you can spend as much time as possible on this section。
If it is not known how to select, it is sufficient to select the brand directly, and to ask a little bit about which brands of pipes in the country are better made. It's time to find out how the brand works in your local area




