The article presents the results of an applied study aimed at creating a fairly simple, inexpensive and at the same time effective domestic solar water heating unit (SWHU) with the concentration of solar energy. A feature of such a SWHU is its relatively small dimensions and the possibility of installation in accessible conditions: on the walls, roofs or balconies of both individual houses and apartment buildings.
Pressure distributive pipelines with path distribution of fluid are part of various technical systems. Pressure losses at abrupt and smooth pipe reductions are components of total pressure losses in these pipelines. After all, the equalization of fluid distribution along the length of distributive pipelines is achieved, in particular, by reducing their diameter in the direction of flow. Depending on the configuration of the pipe reductions, pressure losses at this pipeline element can vary.
The problem of the pressure control in the pipeline of hydraulic system is solved. An analysis of the regulating characteristics of the pipeline pressure adjusting the factors of energy saving.