A switchable water-saving valve including a water inlet substrate formed as an annular body which has a housing and a water inlet portion. The water inlet portion is fixedly arranged within the housing and has a water inlet and a water outlet extending therethrough. A flow channel substrate is fixedly arranged within the housing below the water inlet portion. Guide holes are formed circumferentially at intervals on the flow channel substrate and extend therethrough and are in fluid communication with the water outlet. A switch holder is rotatably positioned below the flow channel substrate. First and second pluralities of water flow holes are arranged circumferentially in the top surface of the switch holder and penetrate the top surface. Water outlet holes are formed on the bottom surface of an aerator holder and are in fluid communication with the first water flow holes. When the switch holder rotates to a first position where the first water flow holes are aligned with the guide holes, water flowing into the guide holes flows out of the water outlet holes through the first water flow holes.

A discrete step, maximum flow-rate-selectable valve includes: (a) an entry tube with: (i) an exit with a single, off-center hole that lies on the circumference of a circle of radius “r” that is centered on the centerpoint of the exit, and (ii) an exterior surface having a portion with rotational symmetry, (b) a selector tube with: (i) an exit with a plurality of holes, each having a differing diameter and a center point that lies on the circumference of a circle of radius “r” which is centered on the centerpoint of the selector tube exit, and (ii) an interior surface configured to lie proximate said entry tube, exterior surface portion having rotational symmetry so as to assist in providing a water-tight seal between said tubes, and (c) a means to enable the selector tube to rotate in discrete steps around the entry tube.

A water outlet device with water stop and flow rate control comprises a body, a water stop assembly, and a flow rate control assembly. The body comprises a water outflow passage. The flow rate control assembly and the water stop assembly are disposed on the body, first ends of the water stop assembly and the flow rate control assembly are respectively disposed in the water outflow passage, and second ends of the water stop assembly and the flow rate control assembly are exposed out of the body to respectively define a water stop operation end and a flow rate control end. The water stop assembly comprises a first shaft that is operatively connected to the water stop operation end. The flow rate control assembly comprises a second shaft that is operatively connected to the flow rate control end.

An easy-to-switch water outflow device includes a body, a water outflow assembly and a water channel switching device. The water outflow assembly is at least capable of spraying out two different functional water sprays; for each of the functional water sprays, the water outflow assembly is provided with at least one water inlet communicating with a water channel of the functional water spray, and the water outflow assembly is provided with a pivoting passage at a position corresponding to the water inflow terminal. The water channel switching device includes a water distribution valve spool, a connecting rod and a switching handle. By rotating the switching handle, the water outlet of the water distribution valve spool can be selectively docked and communicated with the water inlet, thereby realizing the switching of water channels of different functional water sprays of the water outflow device.

A hot and cold water switching valve includes a valve body, a switching valve element, a switch valve element and a thermal sensing valve element, wherein the valve body has an inflow channel, a recovery channel and an outflow channel; one end of the three channels is communicated in the valve body; the switching valve element is provided in such a position where the three channels are communicated with each other and used for switching the outflow mode; the switch valve element is provided in the outflow channel and used for opening or closing the outflow, and the thermal sensing valve element is provided in the recovery channel and used for closing the channel when the water temperature is higher than the set temperature; and a sprinkler used for automatic outflow of cold water, comprising a sprinkler body and the above-mentioned hot and cold water switching valve.

A compact faucet attachment with an adjustable aerator that monitors water usage and encourages positive water-saving behaviors. The attachment replaces an existing faucet aerator and allows users to change the pressure and pattern of the water flowing through their faucet. It has a thread adapter to ensure that it fits most common faucets. Additionally, on a display screen, numerical data and icons show users statistics regarding how much water they use compared to a daily recommended amount. The device's battery is rechargeable.

The water washer is made of an elastic rubber material and has a circular flat shape with a flange on its circumference; a flow adjustable portion has a flow adjustable portion with an inner curved face and an outer curved face; an adjustable inlet aperture is disposed through the inner curved face and the outer curved face of the flow adjustable portion; by deforming the inner curved face and the outer curved face of the flow adjustable portion to shirk the adjustable inlet aperture of the water saving washer.

The invention relates to a shower arm with a torus regulator and a magnetic ring that is comprised of a body (1) with a body head (25), a bell (2), a cover (3), a torus (4), a mixing element (5), a ring (6), a pin (7) and a barrier (9) on the cover, a barrier (8) and a nozzle (10) on the bell, a cavity (11) for water inlet, an inlet (12) of water into the shower head (25), a space (13), a gap (14) on the mixing element, a chamber (15), gaskets (16) and (17), a thread (18), a space (19) for directed flow, pins (20) and a groove (21) on the ring, a groove (22) on the bell, a thread (23) for connecting a hose, a support surface (24) a magnetic ring (26) and an output spray (27) of water and air. When the water circulates within the space (19) underneath the torus (4), negative pressure—vacuum occurs from both the internal and the external sides of the torus cross-section that conditions suction of the air from the chamber (15) of the cone of the bell (2). This air is suctioned through the nozzle (10). In the space below the mixing element (5) the air and the water swirl which alternately enter into the air/water mixture and form a wide conical spray (27). The bell is provided with the groove (22), into which the ring (6) with pins (20) is tightly inserted. The pins are made from a soft material and serve for mechanical massage of the skin and the crown of the hair. On the other side in the ring there is the groove (21), into which the magnetic ring (26) is inserted. Its role is to normalize the water crystals and to arrange them into a natural shape. The nozzle (10) for spray outlet has an orifice large enough in order not to clog due to impurities in the water and limescale.

The saving of water in a shower start up is accomplished by a secondary water tank that delivers hot water while water in the pipes is diverted, mixed or separately heated.

The invention relates to a water-saving device which is fully automated and comprises a complete electronic control system, the possibility of connection to the aqueduct supply network and a hydraulic generator for saving energy. The device according to the invention communicates with a modular system that optionally reduces the water flow of the shower to 50% and diverts the other 50% to the storage tank, by means of the electronic interface. The device according to the invention is applicable in the construction industry.