PPR pipe is a new type of environmental protection building materials, with novel connection mode and long service life. It has become the preferred pipe in the construction industry. However, PPR pipe also has the disadvantage of large coefficient of thermal expansion, which is a common problem of plastic pipe, resulting in construction difficulties and affecting the appearance. Xiaobian summarizes the following solutions.
The first method is to allow PPR pipeline to expand freely, such as setting expansion bend or expansion ring;
The second method is to restrict the free expansion of the pipeline, such as breaking up the whole into parts or adopting supporting plates
The third kind: free arm compensation (including reasonable use of supports and hangers). Use the change of pipeline direction to make natural compensation. This compensation method has good effect, low cost, convenient construction operation and wide application range.