Georg Fischer Rohrleitungssysteme Ag

Juergen Stumpp

Stefan Buergi

Joerg Hunnekuhl

Walter Bannwarth

Christian Hunnekuhl

Device for actuating a diaphragm valve, comprising a housing, wherein the housing is preferably formed of a top and bottom part, and further comprising an electric motor, a base board for the fastening of electrical components, a gear unit for actuating the diaphragm valve or the spindle nut of the diaphragm valve, and a position indicator for indicating the degree of opening of the diaphragm valve, wherein the position indicator is driven via the gear unit.

Diaphragm valve drive

A device for actuating a valve, comprising a casing, said casing exhibiting a transparent region and said casing preferentially having been formed from an upper part and a lower part, a transmission assembly, an electric motor and a base board for attaching electrical components, wherein LEDs or a multicolor LED and an optical waveguide have been arranged in the casing, preferentially on the base board, the position or another function of the valve being indicated by the LEDs lighting up, and the optical waveguide collimating and focusing the light of the LEDs for the purpose of indicating the position or malfunction.

Drive unit with optical waveguide

An actuating device () for actuating valves, having a spindle (), wherein the actuating device is designed as a hand wheel () with a locking element () and with an electric feedback device (), characterized in that the locking element () is formed in one piece and is arranged integrally in the hand wheel ().

Actuating device for actuating valves

A securing element () for securing against the loosening by rotation of at least two screwable housing parts (), the securing element () being arranged so as to be clamped in one of the housing parts () and interact with the other housing part ().

Securing element for securing against unauthorized unscrewing

Diaphragm valve () comprising a housing upper part (), which receives an actuating device () for actuating the valve (), and a housing lower part (), which has a receiving region () for receiving a diaphragm (), wherein in the housing lower part () below the diaphragm () a central region forming a flow channel () is designed, wherein the cross-sectional surface of the flow channel () in the central region () of the housing lower part () is constant when the valve () is in the open state.

Growing community of inventors

Klettgau, Germany

Juergen Stumpp