Abstract: A diaphragm pump with a flat diaphragm which is held between the face surface of a pump head and the corresponding face surface of a hydraulic block is improved in that the annular clamping region has an angling step such that the clamped-in diaphragm is bent in its outer annular border region. In this way, a sealed tightness is achieved over long time periods, as well as inducing a uniform diaphragm tension which effects performance of the pump advantageously. Inventive valve designs are provided which allow removal for cleaning from outside the assembled pump and also allows manual /pening of the valves for unclogging. An efficient design is provided for a pump head.

Abstract: A diaphragm pump with a flat diaphragm which is held between the face surface of a pump head and the corresponding face surface of a hydraulic block is improved in that the annular clamping region has an angling step such that the clamped-in diaphragm is bent in its outer annular border region. In this way, a sealed tightness is achieved over long time periods, as well as inducing a uniform diaphragm tension which effects performance of the pump advantageously. Inventive valve designs are provided which allow removal for cleaning from outside the assembled pump and also allows manual opening of the valves for unclogging. An efficient design is provided for a pump head.

Abstract: In a diaphragm or membrane pump, the diaphragm thereof is composed of two diaphragm disks arranged at an axial distance from one another and enclosing an interior space whose size is variable given damage to one of the diaphragm disks. Further, a signal generator is arranged in that diaphragm disk facing toward the conveying chamber and a signal pick-up is arranged in the pump housing, this signal pick-up being connected to a means for the electronic evaluation and amplification of the signals output by the signal pick-up. This embodiment makes it possible to recognize a potential damage to the diaphragm early and to thus reliably prevent hydraulic medium from proceeding into the conveyed medium.

Abstract: A diaphragm pump with a pumping component composed of a paint stage and propulsion stage; a hydraulic component; and an engine component such as a motor, fashioned such that, in a first predefined position or orientation the hydraulic component and the motor are mounted to each other in side-by-side arrangement, and the pumping component sits on top of the hydraulic component, whereby it is possible to cant the diaphragm pump by 90.degree. and thus bring it into a second operable position for orientation. Unguided paint valves are thereby applied such that, in both positions of the pump, they enclose the same angle with the horizontal line. A measuring stick and an intake line are strategically arranged to be useable in both positions of the pump. A stationary support frame and a mobile support frame are presented to facilitate the flexible positioning or orientation of the pump.

Abstract: Diaphragms for pumps, compressors and the like are provided with a substantially flat planar end face confronting the media being pumped or compressed and have an outer peripheral zone for clamping the circumference of the diaphragm in the pump or compressor housing, an annular intermediate flexing or bending zone adjacent the clamping area, and a central thickened work zone with the flexible bending zone increasing in thickness toward the central working zone. The bending or flexing of the annular intermediate zone is limited to one side of the flat planar end face and the bending stresses are minimized.