Abstract: The invention concerns a spotlight for use in bodies of water. The spotlight has at least one lighting unit for illuminating fountains, water jets or the like, wherein the lighting unit is liquid-cooled and has at least one light emitting diode or a light emitting diode cluster arranged in the housing.

Abstract: A nozzle arrangement for generating a water jet has a nozzle plate having a nozzle opening. In order for the nozzle arrangement to be able to generate a water jet that provides improved utilization as a light guide also in bodies of water with wave motion and that is constructively simple and producible in an inexpensive way, it has a nozzle sleeve that surrounds the nozzle opening at least partially and is arranged on the nozzle plate and is provided with an inner sleeve wall surface that surrounds a water jet exiting from the nozzle opening at a safety spacing. The safety spacing prevents unwanted contact with the water jet.

Abstract: A lighting unit for water fountains, ponds and the like, has a housing that is sealed at least relative to splashing water. A light source is arranged in the housing. A lens is arranged in the housing for alignment of light emitted by the light source. An additional lens unit is arranged in a light path of the light emitted by the light source for providing an additional alignment of the light emitted by the light source. A closure cap secures the additional lens unit by a self-centering action on the housing. The closure cap has an inner guide providing the self-centering action.

Abstract: The invention relates to a cleaning rotor (1) having a longitudinal axis (L), a base part (5), which extends concentric to the longitudinal axis (L), a head part (3) and a strut element (9) that extends between the base part and the head part. Said strut element (9) extends in a helical manner about the longitudinal axis (L). The invention is characterized in that at least one supporting part (7) is placed between the base part (3) and the head part (3) while extending parallel to the longitudinal axis (L). The strut element (9) is supported on the supporting part (7) and is concave over its length.

Abstract: A liquid aspirator, in particular for liquids containing solids such as sludge, has a receptacle into which liquid can be sucked in by an aspirator motor through a vacuum connector and from which the liquid can drain through a drainage. The receptacle has at least two separate receiving chambers and a control that controls that the receiving chambers are filled alternatingly with liquid while the receiving chambers that are not being filled are drained. The receiving chambers are sealable relative to the vacuum side of the aspirator motor by main valves that are preferably mechanically connected.

Abstract: A water pump with a housing that has a pump housing part provided with an intake opening and an outlet opening and a motor housing part. An impeller with a shaft is rotatably arranged in the pump housing part. An electric motor is received in the motor housing part. The electric motor is an electronically commutated motor with a rotor and coils. In the housing, control and governing electronics for the electric motor are arranged that have a speed detection, a processor, and a data storage device. The electronics are arranged in the motor housing part and potted therein in a water-tight way. An integrated BUS control module is provided. The control electronics and the governing electronics can be arranged separate from one another on different circuit boards.

Abstract: A vacuum skimmer for ponds, swimming pools or similar bodies of water has housing with an intake opening and a dirt collecting container arranged downstream for collecting coarse materials. The water to be purified is sucked in through the dirt collecting container by a pump arranged downstream. The intake opening is provided on one housing side. The vacuum skimmer is movable in such a way that the intake opening upon operation of the vacuum skimmer can orient itself in different directions. The vacuum skimmer has an aeration device by means of which air can be blown into the water.

Abstract: The invention concerns a spotlight for use in bodies of water. The spotlight has at least one lighting unit for illuminating fountains, water jets or the like, wherein the lighting unit is liquid-cooled and has at least one light emitting diode or a light emitting diode cluster arranged in the housing.

Abstract: A water pump has a pump housing having a water inlet and a water outlet. A driven pump impeller is arranged in the pump housing. The pump impeller is a diagonal impeller with a carrier plate having a conical shape. The water inlet and the water outlet are arranged such that a water intake direction and a water exit direction are substantially perpendicular to one another.

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.

Abstract: A nozzle arrangement for generating a water jet has a nozzle plate having a nozzle opening. In order for the nozzle arrangement to be able to generate a water jet that provides improved utilization as a light guide also in bodies of water with wave motion and that is constructively simple and producible in an inexpensive way, it has a nozzle sleeve that surrounds the nozzle opening at least partially and is arranged on the nozzle plate and is provided with an inner sleeve wall surface that surrounds a water jet exiting from the nozzle opening at a safety spacing. The safety spacing prevents unwanted contact with the water jet.

Abstract: A lighting unit for water fountains, ponds and the like, has a housing that is sealed at least relative to splashing water. A light source is arranged in the housing. A lens is arranged in the housing for alignment of light emitted by the light source. An additional lens unit is arranged in a light path of the light emitted by the light source for providing an additional alignment of the light emitted by the light source. A closure cap secures the additional lens unit by a self-centering action on the housing. The closure cap has an inner guide providing the self-centering action.

Abstract: A distributor for liquids has a base member having an intake and at least two outlets. At least one branch member is connected to one of the at least two outlets in a position that is changeable relative to the base member. The at least one branch member has an outlet opening. A distributor kit has a distributor, a closure element for closing one of the at least two outlets of the base member of the distributor, and branch elements for each one the outlets that is not closed off by the closure element.

Abstract: A water pump for bodies of water such as ponds, aquariums, or fountains containing suspended particles has a housing with a pump housing part provided with an intake opening and an exit opening, in which housing part an impeller with a shaft is rotatably supported, and a motor housing part in which an electric motor is received. As an improvement, an electronically commutated motor is used and the pump has a power input as well as power and control electronics for the motor having an operating state detection device with speed detection, processor and data storage device. The processor can control an interrupt switch between the power input and the motor. In the data storage device certain characteristic lines in regard to normal operating states can be stored.

Abstract: A water pump with a housing that has a pump housing part provided with an intake opening and an outlet opening and a motor housing part. An impeller with a shaft is rotatably arranged in the pump housing part. An electric motor is received in the motor housing part. The electric motor is an electronically commutated motor with a rotor and coils. In the housing, control and governing electronics for the electric motor are arranged that have a speed detection, a processor, and a data storage device. The electronics are arranged in the motor housing part and potted therein in a water-tight way. An integrated BUS control module is provided. The control electronics and the governing electronics can be arranged separate from one another on different circuit boards.

Abstract: A pump arrangement for bodies of water or containers with water subject to biological influences has at least one water pump and a control device controlling the speed of the water pump. At least one temperature sensor measures the water temperature and provides signals of the measured water temperature. The signals are processed in the control device and the speed of the pump water is controlled by the control device based on the signals.