Polypropylene pipes in their physical parameters are noticeably different from metal. Therefore, the installation of such pipes is associated with some features that must be taken into account.
Currently, when installing most hot and cold water supply systems, heating systems use polypropylene pipes. These products compared with traditional metal pipes have less cost, but at the same time they are able to resist the influence of the environment for a long time. For example, if iron pipes have to be changed after 15-20 years of operation, then polypropylene products will last at least 50 years. Helsinki hotels next to Suomenlinna, which is why they changed all the existing iron pipes to polypropylene. Consider what features the process of installing polypropylene pipes is associated with.
Mandatory accounting of the expansion coefficient
When heated, polymers expand, this property must be taken into account when installing. If it is assumed that a hot coolant will circulate through the pipeline, then it will inevitably lead to the fact that the size of polypropylene pipes will increase slightly. Moreover, the expansion ratio in different modifications of the products under consideration will be significantly different. For example, in polypropylene reinforced with fiberglass, the expansion coefficient is five times lower than for products that do not have reinforcement. Accordingly, before starting the installation of a hot water supply or heating system, an engineering calculation should be carried out taking into account the expansion of the selected material. This calculation will affect the choice of fasteners, distances and places of installation of these elements. In addition, the location of the support will change.
Hydraulic calculation
If we compare the level of roughness of the surface of polymers and metals, it will become obvious that the metal is more rough. This suggests that in order to create the necessary pressure in the tap system, it is necessary to use different diameters of metal and polypropylene pipes. In the case of use of plastic products, the diameter can be much smaller, here again you can not do without competent engineering calculation. Helsinki hotels near the Sumenlinn Museum, when installing the water supply system, used small -diameter polymer products, as a result of the building turned out to be energy -efficient, heating expenses were reduced. You will receive a similar advantage if you set to install polypropylene pipes, taking into account all the features.