Abstract: A water nozzle with a flow head is provided with at least two separate water supply devices that supply, in a controllable fashion, different water volume flows to the flow head. The flow head generates an annular jet from the different water volume flows. By controlling the water volume flows, alternatively a slim annular jet or a widened annular jet is generated by the flow head. A deflection element with a central outlet opening is provided, wherein the central outlet opening is arranged in a flow direction of the annular jet downstream of and spaced apart from the flow head. A deflection device surrounds the central outlet opening. A diameter of the central outlet opening is designed such that the slim annular jet is able to pass through the central outlet opening while the widened annular jet impacts on the deflection device surrounding the central outlet opening.

Abstract: The invention relates to an underwater switch unit for voltage supply of electrical devices (11), particularly in the low voltage range, having a housing (19) which is preferably designed to be water-tight, in which an electronics unit (2) is arranged, by means of which an input voltage, which can be connected via an input connection of the underwater switch unit (14), can be distributed in parallel to a plurality of output connections (16) of the underwater switch unit (14), wherein at least two of the output connections (16) can be supplied with voltage separate from each other via at least one switch element (7, 8) of the underwater switch unit (14), and wherein the uncontrolled underwater switch unit (14) comprises a data bus connection having a related data bus interface, via which an informational signal concerning the voltage connection of an output connection (16) can be detected.

Abstract: The invention relates to a lighting system comprising at least one light module (3), preferably a plurality of light modules (3), which can be installed in e.g. pool walls of swimming baths or footpaths and have at least one LED (4), wherein the light modules are each connected by means of at least one system cable (2) to a common central and bus-capable controller (1) and can be controlled thereby, wherein the system cable (2) is provided for power supply to the light modules (3) and for control of the respective light modules (3) from the controller (1), and wherein in each case a light module (3) which can be positioned by means of an associated system cable (2) remote from the controller (1) has a housing, which is in particular watertight, in which driver means are disposed for supplying power to the LED (4).

Abstract: Disclosed is a water feature nozzle comprising at least two separate water guides (1, 3) each with at least one outlet opening (13, 14), wherein controllably different water volume streams (V1,V2) can be directed to the outlet openings (13, 14) via the water guides (1, 3) in order to generate variable water patterns at a nozzle outlet (9), the water feature nozzle being designed such that an inner water guide (1) is surrounded by at least one outer water guide (3), and both water guides (1, 3) direct parallel-orientated water streams (V1,V2) as far as the nozzle outlet (9). One of the water guides (1, 3) has an adjustable flow deflector (10, 11) on the nozzle outlet (9), which flow deflector (10, 11) annularly encloses the inner water jet.

Abstract: Disclosed is a water feature nozzle comprising at least two separate water guides (1, 3) each with at least one outlet opening (13, 14), wherein controllably different water volume streams (V1,V2) can be directed to the outlet openings (13, 14) via the water guides (1, 3) in order to generate variable water patterns at a nozzle outlet (9), the water feature nozzle being designed such that an inner water guide (1) is surrounded by at least one outer water guide (3), and both water guides (1, 3) direct parallel-orientated water streams (V1,V2) as far as the nozzle outlet (9). One of the water guides (1, 3) has an adjustable flow deflector (10, 11) on the nozzle outlet (9), which flow deflector (10, 11) annularly encloses the inner water jet.

Abstract: The invention relates to an underwater switch unit for voltage supply of electrical devices (11), particularly in the low voltage range, having a housing (19) which is preferably designed to be water-tight, in which an electronics unit (2) is arranged, by means of which an input voltage, which can be connected via an input connection of the underwater switch unit (14), can be distributed in parallel to a plurality of output connections (16) of the underwater switch unit (14), wherein at least two of the output connections (16) can be supplied with voltage separate from each other via at least one switch element (7, 8) of the underwater switch unit (14), and wherein the uncontrolled underwater switch unit (14) comprises a data bus connection having a related data bus interface, via which an informational signal concerning the voltage connection of an output connection (16) can be detected.

Abstract: A rotary pump has a pump housing enclosing a flow space and provided with an intake opening and a discharge opening, wherein the intake opening and the discharge opening are connected to each other by the flow space. An impeller wheel is disposed in the flow space and is driven in rotation. An expansion body is provided that is fluidically connected to the flow space. A spiral casing surrounds, in a mounted position in the pump housing, an outer circumference of the impeller wheel, wherein the spiral casing is a single-part or multi-part shaped component and is embodied separate from the pump housing.

Abstract: In a plug connection assembly for a moisture-protected electrical plug connection having at least one plug which has a main body (1) having a fastening flange (4) on the front side and a resilient sealing element (7) arranged on said flange and an electric line cable (2) emerging rearward from the main body (1), a contact carrier (5) which receives electric contacts (6) is inserted into the main body (1) in a form-fitting manner. The fastening flange (4) can have a rigid contact area (14) for contact with a socket (9), and the sealing element (7) can have a surface seal (17) and a raised molded seal (27) on a partial surface thereof.

Abstract: A plug for a moisture-protected electrical plug connection has a plug housing having an interior and contact elements secured in the plug housing. Electrical lines extend through the plug housing and are each conductively connected by an electrical connection to one of the contact elements. The electrical lines each have an enveloping insulation. A potting compound fills out the interior of the plug housing. The electrical lines each have a first area without insulation adjoining the electrical connection. An electrically non-conductive spacer is arranged between the first area and the electrical connection. The first area, on a side of the spacer facing away from the electrical connection, is embedded in the potting compound.

Abstract: A rotary pump has a pump housing enclosing a flow space and provided with an intake opening and a discharge opening, wherein the intake opening and the discharge opening are connected to each other by the flow space. An impeller wheel is disposed in the flow space and is driven in rotation. An expansion body is provided that is fluidically connected to the flow space. A spiral casing surrounds, in a mounted position in the pump housing, an outer circumference of the impeller wheel, wherein the spiral casing is a single-part or multi-part shaped component and is embodied separate from the pump housing.

Abstract: In a plug connection assembly for a moisture-protected electrical plug connection having at least one plug which has a main body (1) having a fastening flange (4) on the front side and a resilient sealing element (7) arranged on said flange and an electric line cable (2) emerging rearward from the main body (1), a contact carrier (5) which receives electric contacts (6) is inserted into the main body (1) in a form-fitting manner. The fastening flange (4) can have a rigid contact area (14) for contact with a socket (9), and the sealing element (7) can have a surface seal (17) and a raised molded seal (27) on a partial surface thereof.

Abstract: A plug for a moisture-protected electrical plug connection has a plug housing having an interior and contact elements secured in the plug housing. Electrical lines extend through the plug housing and are each conductively connected by an electrical connection to one of the contact elements. The electrical lines each have an enveloping insulation. A potting compound fills out the interior of the plug housing. The electrical lines each have a first area without insulation adjoining the electrical connection. An electrically non-conductive spacer is arranged between the first area and the electrical connection. The first area, on a side of the spacer facing away from the electrical connection, is embedded in the potting compound.

Abstract: A pressurized water container for water fountains, ponds, swimming pools, and aquariums has at least two housing parts and at least one seal arranged between the at least two housing parts, wherein the at least two housing parts are connectable to one another in a lockable way. The at least two housing parts have projections and matching recesses, wherein the projections engage the recesses and, by a displacement of the at least two housing parts relative to one another in opposite directions, they are lockable on one another and releasable from one another when reversing the displacement.