The solenoid valve (5) is communicated with a hydraulic route.

The disclosure provides a simple empirical method of identifying network characteristics of the fluid network system.

The network characteristics are used for providing the required fluid flow rate in the fluid network system utilizing minimal fluid machine power.

The invention relates to an integral system for a toilet tank comprising an hydraulic piston that uses the pressure in the domestic water piping system, multiplies said pressure and converts same up to 35 kg.

The subject of the invention is a hydraulic arrangement of devices for the controlling of valves belonging to a combustion engine.

It is presented a method of controlling fluid flow in a fluid network system by means of a plurality of fluid machines.

A combined system (10) for the production of hot water which comprises : a solar apparatus (11); a wall -mounted gas boiler (13); a hydraulic network (14); and a mixer/diverter valve assembly (15; 15*; 15**; 15***).

The present invention relates to a sanitation compartment capable of preheating the clean, cold water from the mains, for use in the bath, using, for this purpose, the residual heat present in wastewater.

The clean, cold (LF) water from the mains (9) circulates through the interior of the heat exchanger (8), where it is preheated on receiving heat from the wastewater (SQ) present within the collector vessel (2).