Hot and cold water pipes are pipe systems used to transport cold and hot water. The main differences are their materials, wall thickness, temperature resistance and markings.
Differences
The main differences between hot and cold water pipes are reflected in the following aspects:
1. Material differences: Cold water piping are usually made of PPR materials, while hot water pipes use PP-R or PB materials with better heat resistance. Hot water pipes need to withstand high temperatures, so their tolerance temperature is much higher than that of cold water pipes. Generally, the tolerance temperature of hot water pipes is around 95℃, while that of cold water pipes is only 20℃.
2. Different wall thickness: Due to different heat resistance requirements, the wall of hot water pipes is usually thicker than that of cold water conduit. The wall thickness of hot water pipes is designed to withstand higher temperatures and pressures, while that of Cold water piping is relatively thin.
3. Identification distinction: There is a clear difference in appearance between hot and cold water pipes. Hot water pipes are marked with red lines, while cold water pipes are marked with blue lines. This identification method is to facilitate users to quickly distinguish when purchasing and installing.
4. Different uses: Cold water pipes are mainly used to supply cold water for drinking water, washing vegetables, etc., while hot water pipes are used for bathing, washing hands, etc. Hot water pipes are not only resistant to high temperatures, but also have good toughness and are not easy to deform.
How to choose the right hot and cold water pipes?
Choosing the right hot and cold water pipes requires considering multiple aspects such as materials, specifications, quality and purchase channels.
First of all, choosing the right material is the key. At present, the common materials of on the market include copper pipes, aluminum-plastic pipes, PPR pipes, PB pipes, PERT pipes, etc. Among them, PP-R pipes have become the most cost-effective choice due to their non-toxic, light weight, pressure resistance, and corrosion resistance.
Secondly, the choice of specifications is also very important. International standards stipulate that there are many specifications for hot and cold water pipes. The commonly used specifications in general home decoration are 20, 25, 32, etc. The main pipe usually chooses 25, that is, 6 points, and the branch pipe can choose 20, that is, 4 points.
When purchasing, you need to pay attention to the following points:
1. Listen to the sound: The sound of a good quality water pipe is dull, while the sound of a poor quality water pipe is crisp.
2. Weigh the weight: In addition to listening to the sound, we can also judge the quality of the water pipe by weighing its weight.
Generally speaking, good quality water pipes, such as PPR pipes, are relatively light due to their uniform material and high density.
Poor quality water pipes may be heavier due to the addition of too many impurities or recycled materials.
3. Look at the appearance: Good water pipes have a smooth and neat appearance, without obvious bubbles, cracks and impurities. Moreover, the spray words on the pipe body are clear and standardized, and the professionalism of the brand can be seen at a glance.
4. Smell: Good water pipes have no odor, while poor quality water pipes may have a pungent odor.
5. Pinch hardness: Good water pipes have moderate hardness and are not easy to be deformed by pinching.
6. Smash resilience: Good water pipes have good resilience and are not easy to be smashed.
7. It is also important to choose the right purchasing channel. It is recommended to choose a professional pipe manufacturer to ensure quality and after-sales service. Puhui Industry is a pipe manufacturer with more than 20 years of R&D and production experience. If you need it, please contact us.