What are the applicable scope and installation conditions of Potable Water PPR Pipe?

Potable Water PPR Pipe has good corrosion resistance, high temperature resistance and long service life, so it is widely used in different types of drinking water pipe systems. The following is a detailed analysis of the scope of application and installation conditions of PPR pipes:

Scope of application of PPR pipes
PPR pipes are mainly used in drinking water pipe systems, but its scope of application is not limited to this. Specific application scenarios include:
Residential and commercial buildings
Household water supply pipes: PPR pipes are widely used in household drinking water supply pipe systems, especially suitable for the transportation of hot and cold water.
Commercial buildings: PPR pipes are also widely used in commercial buildings (such as office buildings, hotels, shopping malls, etc.), mainly for cold and hot water supply.
Public facilities such as schools and hospitals: PPR pipes are often used in the water supply systems of public facilities due to their superior hygienic properties and corrosion resistance to ensure water quality safety.
Industry and agriculture
Industrial water pipes: In some industrial sites with high water quality requirements, PPR pipes are used to transport clean water or drinking water. It is compatible with many chemicals and gases, so it is sometimes used to transport industrial water.
Agricultural irrigation system: PPR pipes can also be used in agricultural irrigation systems due to their corrosion resistance and UV resistance.
Hot and cold water system
Hot water system: PPR pipes can withstand a certain high temperature (usually 85°C), and are suitable for hot water pipe systems, such as hot water supply in homes and hotels.
Cold water system: PPR pipes are also effective for the transportation of low-temperature water and are widely used in cold water pipe systems, especially in cold and hot water pipe systems, where cold and hot water pipes can be laid in parallel to avoid cross contamination.
Outdoor water supply pipes

In some areas, PPR pipes can be used in outdoor water supply systems, especially for places that are not directly exposed to extreme cold or high temperatures. Its advantages in corrosion resistance make it suitable for some external environments, but care should be taken to prevent direct exposure to sunlight and avoid aging of pipes due to ultraviolet radiation.
Rainwater discharge and wastewater treatment systems
In addition to drinking water pipes, PPR pipes can also be used for the transportation of some neutral water, such as rainwater discharge pipes or wastewater discharge pipe systems, especially in places where higher corrosion resistance is required.
Installation conditions of PPR pipes
The installation of PPR pipes must not only meet technical requirements, but also take into account the site environment, construction conditions and long-term performance of the pipes. Here are some basic installation conditions:
Pipeline installation location
Indoor installation: PPR pipes can be installed in indoor walls, floors, ceilings and other locations, and are suitable for water supply systems in homes, offices, hotels and other buildings. During the installation process, try to avoid excessive bending or mechanical damage to the pipes.
Outdoor installation: If PPR pipes need to be installed outdoors, the pipes should be avoided from being exposed to strong sunlight to prevent ultraviolet rays from causing pipe aging. In general, it is recommended to bury PPR pipes underground or use pipe protective sleeves to prevent premature aging or damage to the pipes.
Frozen areas: In cold areas, PPR pipes need to be protected from freezing. Insulation, heating or burying underground can be used to prevent pipes from freezing and rupture.
Pre-installation preparation
Pipeline inspection: Before installation, the PPR pipes should be thoroughly inspected to ensure that the pipes have no defects such as cracks and damage. Especially during transportation, the pipes may be damaged, and inspections before installation can effectively avoid problems during construction.
Cutting and cleaning: Professional tools must be used to cut PPR pipes to ensure that the cuts are smooth. The pipe ends after cutting need to be cleaned to prevent impurities from entering the pipes and affecting water flow and water quality.
Connection method
Hot-melt connection: PPR pipes usually use hot-melt connection, which requires the use of special hot-melt welding equipment. During the hot-melt connection process, it is necessary to ensure that the temperature, time, and pressure of the pipes and fittings are properly controlled to ensure the firmness and sealing of the welding. When connecting, ensure that the interface is flat and use a suitable clamp to maintain the position.
Electric fusion connection: In addition to hot-melt connection, PPR pipes can also use electric fusion connection, which is suitable for some occasions that require quick connection. Electric fusion connection heats the pipe connector through electric heating wire, making the connection more convenient.
Socket connection: Socket connection is also a common method, suitable for PPR pipes with larger diameters.
Support and fixation of pipes
PPR pipes need to provide sufficient support and fixation during installation according to the weight and size of the pipes. The pipes should avoid being suspended or unevenly stressed, and the spacing between the brackets and pipe clamps must comply with relevant design specifications. Excessively long pipe sections should be installed with appropriate supports to prevent the pipes from being deformed or damaged due to their own weight or water flow pressure.
When fixing the pipe, avoid tightening the pipe too much to avoid affecting the natural expansion and contraction of the pipe and causing the pipe to rupture.
Temperature and environmental requirements
Temperature control: Avoid excessively high or low ambient temperatures during installation. The hot-melt connection of PPR pipes requires welding at an appropriate temperature, usually around 200°C, and too low or too high ambient temperatures may affect the quality of the pipe connection.
Avoid strong ultraviolet radiation: When installing PPR pipes, try to avoid exposing the pipes to strong sunlight, especially for pipes installed outdoors. Ultraviolet rays will accelerate the aging and embrittlement of PPR pipes.
Water pressure and sealing
After installation, the entire system should be tested for water pressure to ensure the sealing of the pipe. Check all welding points and joints for water leakage, especially at key locations such as elbows and joints.
Pipeline protection
After installation, PPR pipes should be protected from external mechanical impact or chemical erosion as much as possible. After installation, a protective layer can be added to the outside of the pipe (such as a protective material wrapped around the pipe) to prevent the pipe from being damaged by external forces during construction or use.

PPR pipes are suitable for a wide range of drinking water systems, and can be used in water supply pipes for homes, commercial buildings, public facilities, as well as in industries and agriculture. Its installation conditions require attention to ambient temperature, connection methods, support fixation, and protection measures for pipes to ensure stable operation in different application scenarios. With the correct installation method, PPR pipes can play their advantages of long-term stability, safety, and efficiency.