An apparatus for sterilizing a liquid comprises a container (10) having an inlet (12), an outlet (14) and an interior (16) with an outer wall (18), and at least one light source (32) which is adapted to emit radiation in the ultraviolet wavelength range, in particular UV-C radiation, through the outer wall (18) into the interior (16), the outer wall (18) of the interior (16) for this purpose being configured to be at least partially transparent. The inlet (12) comprises at least one opening (28), which is positioned and aligned in relation to the outer wall (18) of the interior (16) and the at least one light source (32) in order, when a pressure is exerted on the liquid to be admitted through the at least one opening (28) and to be sterilized, to form a liquid jet (30) directed onto the outer wall (18) in a region of the at least one light source (32) and/or above the latter, and/or to form a liquid film (31) there. The liquid jet (30) impinging on the outer wall (18) may, for example, flow down thereon as a thin liquid film (31) in front of the at least one light source (32) and thereby lead to effective sterilization even with a low penetration depth of the UV radiation.

A liquid spraying system having a liquid spray section and a controller for controlling liquid to the spray section. The controller includes a valve operable between multiple positions for controlling the supply of liquid to the spray section and enabling the flow of liquid from the spray section to a flow back line only after the liquid supply to the spray section has been terminated.

The present invention relates to a water distribution system with hygienisation capacity. According to a first aspect, the present invention describes a water distribution system (I) comprising a water supply, a heating source (IO0) or a point of inflow of externally heated water, at least one sensor measuring water quality, a flow path for water with a user outflow UO, and a control unit for operation of the water distribution system (1), said at least one sensor measuring water quality being connected to the control unit, wherein the water distribution system (I) comprises tubing in a tubing system where at least one portion of the tubing system in the water distribution system (1) comprises a tubing portion which is made of a plastic material comprising silver and/or zinc to provide an inner anti-biofilm of that tubing portion.

An apparatus for personal hygiene of patients with reduced mobility is presented. The apparatus includes a support casing, a housing for accommodating a removable tank, a grippable washing head, a pump, a hydraulic circuit, and a valve assembly. A working operation mode and a standby operation mode are provided. In the working operation mode, the valve assembly determines in the hydraulic circuit a water supply path from the tank, to the pump, to the washing head and finally out of the delivery mouth. In the stand-by operation mode, the valve assembly determines in the hydraulic circuit a water recirculation path from the tank, to the pump, to the washing head and finally back to the tank, without water flowing out of the delivery mouth.

The disclosure relates to an atomizer for the application of a multi-component paint, with a master paint connection, a hardener connection, a mixer, a hardener line leading in the atomizer from the hardener connection to the mixer, a master paint line, which in the atomizer leads from the master paint connection to the mixer, and with a main valve for controlling the paint delivery, the main valve being arranged downstream of the mixer and controlling the flow of the multicomponent paint to an application element, in particular to a rotatable bell cup. The atomizer according to the disclosure is characterized by a first return connection for returning the multicomponent paint from the atomizer to a return system. For this purpose, the atomizer has a first return line which branches off in the atomizer between the mixer and the main valve and opens into the first return connection.

The present disclosure provides a nozzle assembly including a unitary nozzle body having multiple flow channels therein. Spray nozzles are mounted to outlet ports of the flow channels, such as via a snap-fit connection. The spray nozzles can be keyed with the outlet ports to align them in a predetermined position and lock the spray nozzles and the nozzle body together radially. Vehicles and systems incorporating a nozzle assembly are also provided.

A plumbing system for a shower or the like includes a mixing valve operable for delivering a water flow of adjustable temperature from a water source to a dispensing device downstream from the mixing valve. The system further includes a diverter valve between the mixing valve and the dispensing device, and operable to divert a selectively variable portion of the water from the mixing valve back to the water source. A thermochromic thermal indicator, downstream from the mixing valve, may advantageously provide a visible indication of the water flow having achieved a predetermined temperature. The thermal indicator may be a thermochromic PVC conduit, or it may be a fitting having an inlet, an outlet, a thermochromic PVC element therebetween, and a barrier located between the inlet and the outlet so as to define a flow path that includes an interior surface of the thermochromic element.

A water delivery system includes a mixing valve operable for delivering a water flow of adjustable temperature from a water source to a dispensing device downstream from the mixing valve; a thermochromic thermal indicator, fluidly coupled between the mixing valve and the dispensing device, that provides a visible indication of the water flow having achieved a predetermined temperature; and a diverter valve, fluidly coupled between the mixing valve and the dispensing device, and operable to direct the water flow selectively either to the dispensing device or back to the water source. The thermal indicator may be a thermochromic PVC conduit, or it may be a fitting having an inlet, an outlet, a thermochromic PVC element therebetween, and a barrier located between the inlet and the outlet so as to define a flow path that includes an interior surface of the thermochromic element.

A modular spray gun manifold having a plurality of spray gun modules arranged in a lateral array each separated by an adjacent support assembly. Each spray gun module has a central liquid passage communicating with a spray nozzle and a transversely oriented liquid inlet port communicating through an outer side of the spray gun module for connection with an independently controllable liquid supply. The spray gun modules further include a recirculation port communicating between the central passageway and a recirculation conduit in an adjacent support assembly. A control valve of each module is operable when in open spraying position for blocking communication of liquid from the central passageway to the circulation port and when in a valve closing position blocking the liquid flow to the spray nozzle while redirecting liquid from the liquid inlet to the recirculation port for recirculation through the manifold array.

A water delivery system includes a mixing valve operable for delivering a water flow of adjustable temperature from a water source to a dispensing device downstream from the mixing valve; a thermochromic thermal indicator, fluidly coupled between the mixing valve and the dispensing device, that provides a visible indication of the water flow having achieved a predetermined temperature; and a diverter valve, fluidly coupled between the mixing valve and the dispensing device, and operable to direct the water flow selectively either to the dispensing device or back to the water source. The thermal indicator may be a thermochromic PVC conduit, or it may be a fitting having an inlet, an outlet, a thermochromic PVC element therebetween, and a barrier located between the inlet and the outlet so as to define a flow path that includes an interior surface of the thermochromic element.