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 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 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.

Abstract: A water pump has a housing with a pump housing part, provided with an intake opening and an exit opening, and a motor housing part. An impeller with a shaft is rotatably arranged in the pump housing part. An electric pump motor is arranged in the motor housing part, wherein the pump motor comprises a stator having several coils arranged on several stator poles and a rotor rotating in the stator. The pump motor is an electronically communicated motor. The stator is comprised of a pack of unitary laminations, respectively. The pump motor has control electronics arranged in the motor housing part. The stator with its coils and the control electronics are water-tightly encapsulated.

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 pond pump includes a housing having a discharge port and an intake area, the intake area having a plurality of openings. A pump device is installed in the housing. A suction port in the housing is in fluid communication with the discharge port via the pump device. An intake connector is supported by the housing and is movable relative to the suction port so that the percentage of suction volume of the suction port drawn in between the intake connector and the intake area can be varied. The pond pump also has a motor for driving the pump device, and a control unit for controlling the pump device and the motor.

Abstract: A pump for ponds, aquariums or similar facilities has a synchronous motor arranged within a motor housing. The motor has a permanent-magnet rotor and a stator, wherein the rotor is separated from the stator by an inner wall of the motor housing. A housing part is provided that forms a flow channel. The pump has a removable mounting flange for rotatably securing the rotor. The housing part is detachably mounted on the flange by a fastening device. The mounting flange seals a can forming the inner wall relative to the remaining motor housing and secures a bearing bracket serving for supporting the rotor.