01 The meaning of don't surface mounted
In layman's terms, the pipeline should be concealed when installed and used. Concealed laying refers to projects that need to be covered or covered, such as foundations, electrical pipelines, and water and heating pipelines, and projects that are laid inside the decorative surface. Pipes buried in walls or underground are all hidden. In the home decoration, the ceiling is installed after the pipeline is installed on the ceiling, which is also a hidden application.
02 Is don't surface mounted a quality problem?
The new version of the national standard stipulates that non-surface mounted pipes should be marked "don't surface mounted". If used in surface mounted, because of its strong light transmittance, under the action of light, it is easy to breed bacteria in the water. The indication "don't surface mounted" on the product is a warm reminder, which has nothing to do with the product quality. In the current decoration, the pipes are basically buried in the wall, underground or installed in the ceiling of the ceiling. safe to use.
03 Why is there such a logo?
In the new version of the national standard GB/T 18742.2-2017, it is stipulated that the light transmittance of exposed pipes should be ≤0.2%. If the light transmittance is more than 0.2%, it is a non-surface mounted pipe, and it should be marked "don't surface mounted". The new version of the national standard GB/T18742.2-2017 replaced the old version of the national standard GB/T18742.2-2002, and it was formally implemented on May 1, 2018.
04 After the “don't surface mounted” water pipes are installed, will they see out toxic and harmful substances under the sun?
High-quality PPR water pipes are environmentally friendly, non-toxic and harmless products, and will not leak toxic and harmful substances under direct sunlight.
05 What should I do if don't surface mounted pipes must be surface mounted?
Outdoor exposed pipes and water pipes close to the light source should be wrapped and shaded to prevent bacteria from multiplying and prevent outdoor ultraviolet rays from affecting the life of the pipes.
