Abstract: Provision is made of a device for indicating the position of a valve spindle of a valve. The device comprises a valve spindle which can be shifted between a first position and a second position, and a sensor module for detecting at least the end positions of the valve spindle. The device further comprises at least a first optical display element (58), preferably a first LED, for indicating the first position, and a second optical display element (60), preferably a second LED, for indicating the second position. A first end position indication (66) is assigned to the first display element (58) and a second end position indication (68) is assigned to the second display element (60).

Abstract: A modular flow injection analysis system has a sample connection, a reagent inflow and a media discharge. The analysis system is formed of a plurality of functional modules stacked one on top of the other. These functional modules include a metering module including a metering channel having an inlet and an outlet, a mixing module including a mixing channel having an inlet and an outlet, an analysis module including a media chamber connected to the outlet of the mixing channel, and a media control module. The modules are connected by aligned media channels. These media channels replace the conventional tube connections. They are connected automatically when the modules are fitted together.

Abstract: A connecting device for connecting a fluid sensor to a channel module has a locking device that can secure the fluid sensor on the channel module, a closure device that can allow the flow of a fluid conducted in the channel module from the channel module to the fluid sensor, and an actuating means, the actuating means actuating the locking device.

Abstract: In a metering unit (10) having at least one outlet (20) for dispensing an aerosol with a defined concentration, with at least one inlet (180) for a carrier gas, at least one inlet for a liquid, preferably for a hydrogen peroxide solution, and a buffer container (30) for the liquid, it is provided that the metering unit (10) has at least one liquid flow controller (90) on the outflow side.

Abstract: A diaphragm valve for fluid control includes a valve housing having a valve chamber, into which at least three passageways open. The passageways have associated therewith valve seats provided in the valve housing. Further, the diaphragm valve for fluid control includes a diaphragm having various diaphragm sections that can be pressed against associated valve seats in order to selectively open and close flow connections between passageways. Further, the diaphragm valve for fluid control includes at least two control pistons, which are displaceably accommodated in respectively one cylinder chamber and are respectively coupled with the associated diaphragm section via a pressure transfer unit in order to move the diaphragm section, during the movement of the control piston, into an opening or closing position, wherein the cylinder chambers are located at the same axial height, so that the control pistons can be moved next to each other.

Abstract: The invention relates to a rotary slide valve comprising a housing, a valve slide, a valve seat having a sealing surface, against which the valve slide rests and in which a flow opening is provided, which has a curved outer contour at least in substantial parts, wherein the valve slide can be pivoted about an axis that is eccentric to the center of curvature of the outer contour on the side of the center of curvature that faces away from the flow opening, and a drive that can adjust the valve slide between a closed position and an open position.

Abstract: A valve housing comprising an outer pipe section which is formed from a prefabricated pipe and has a connector for a valve actuator, and comprising an inner pipe section with a valve seat which represents a fluidic connection between the outer and inner pipe sections, is provided with a cut-out in the peripheral wall of the outer pipe section. At least a portion of the inner pipe section including the valve seat protrudes into the outer pipe section from outside the outer pipe section, the valve housing being fluid-tight in the region of the cut-out.

Abstract: In an electromagnetic actuator for a solenoid valve, the electromagnetic actuator has a magnetic coil and a first electrical connector adapted to receive a control signal which determines a switching position of the electromagnetic actuator. The electromagnetic actuator further has a second electrical connector which is provided directly on the electromagnetic actuator and is separate with respect to the first electrical connector. The magnetic coil and the first electrical connector are coupled by an electrical connection which is interrupted at the second electrical connector. Further proposed are a valve terminal having at least one solenoid valve, and a module arrangement.

Abstract: An electronic unit of a fluid sensor or fluid valve has a substantially cylindrical housing with a longitudinal axis and an open end face, which can be closed by a lid, several spacers formed as separate parts, which can be introduced into the housing in direction of the longitudinal axis and are directly stacked on top of each other. At least one spacer at least one electronic component is attached, which together with the spacer forms a premounted unit to be introduced into the housing.

Abstract: A modular switching valve arrangement (12) having a plurality of switching valves (20) which are arranged adjacent to one another is characterized in that each switching valve (20) includes at least one media connection (34) which has a connecting piece (26) mounted thereto, and in that the connecting piece (26) braces the corresponding switching valve (20) with a shared carrier plate (24).

Abstract: A valve transport protection device for a valve comprises at least one valve connection surface with at least one fluid channel port, a preferably rectangular protection portion for covering the fluid channel port and elastic tabs which protrude from opposite ends of the protection portion and comprise a locking opening, for a form-locking engagement with protrusions protruding from the valve. The valve transport protection device is implemented without any adhesive on its side facing the valve.

Abstract: There is described a valve housing which includes an inlet, an outlet and a vibration generator. The vibration generator is a surface wave chip which is mounted flat on the valve housing and is able to couple a surface wave into the valve housing.

Abstract: A diaphragm valve having at least two axially extending fluid passageways, which are aligned with each other and which extend towards each other, and a separation wall between the fluid passageways provides for the separation wall, if viewed in the longitudinal sectional view, to have a flatter and a steeper section for delimiting the fluid passageways. Moreover, a method for producing a diaphragm valve housing is provided.

Abstract: A drive unit for a micro valve comprises a housing, a spring and at least one shape memory alloy element which is attached to the housing in a deflectable manner. The shape memory alloy element is loaded by the spring towards a deflected position and is movable in response to a temperature increase and the shape memory effect activated thereby, into a position which is at least less deflected against an increasing load by the spring. A normally closed micro valve includes a fluid housing, at least one valve seat, a sealing element opposite the valve seat, and a drive unit of the type mentioned above. The shape memory alloy element cooperates with the sealing element and exerts an operating force on the sealing element for closing and opening the valve seat with or against a compression spring force.

Abstract: A double valve has two coils which can be piloted separately from each other and which each have a core. The coils are arranged in a common valve housing, and a flange housing is mounted to the valve housing. Two valve seats are arranged in the flange housing, and a diaphragm is associated with the two valve seats, with each coil being associated with one valve seat.

Abstract: A metering system for metering a metering fluid includes at least one metering unit, a fluid supply component conveying the metering fluid to the metering unit, and a control module conveying a control fluid to the metering unit. The metering unit includes a first housing part, an exchangeable second housing part and a membrane which is arranged between the housing parts and divides a cavity formed between the housing parts into a pumping chamber and a metering chamber which are separated from each other in fluidic terms. Channels are formed in the first housing part which receive the control fluid and are in flow connection with the control module, and channels are formed in the second housing part which receive the metering fluid and are in flow connection with the fluid supply component.

Abstract: A solenoid valve having a condition monitoring unit, and a method of condition monitoring this solenoid valve are specified. A core of the solenoid valve can be shifted with respect to a holding coil and a measuring coil. A reading voltage is applied to the measuring coil, and the current intensity of a current flowing through the measuring coil is determined at a first and a second time. The first measuring is performed during a switching-on or switching-off operation of the current flowing through the measuring coil. The second measuring is performed when the current intensity of the current flowing through the measuring coil has reached a stationary condition.

Abstract: A portable gas transfer device for sterilization at a sterilization site includes: a housing; a pressurized gas canister held by the housing; a first passageway in fluid communication with the pressurized gas canister and configured to supply pressurized pre-sterilization gas from the pressurized gas canister to the site; a gas discharge canister held by the housing; and a second passageway in fluid communication with the gas discharge canister and configured to supply post-sterilization gas from the site to the gas discharge canister. Additional related devices, systems and methods are provided.

Abstract: A fluidic control element includes a housing having a fluid space formed between at least two housing parts. First and second flow channels may each have a sealing seat that opens into the fluid space. The fluidic control element may further include a two-armed lever which is configured to swivel in the fluid space. Each arm of the lever may be configured to open and close one of the flow channels in a corresponding end position. Additionally, a valve body may have a load-carrying core including a shaft mounted in the housing. The shaft may be rounded at least in the region in which it is embedded in a sealing ring that surrounds the lever arms.

Abstract: A method of manufacturing valves which are driven in particular in magnetic manner. At least one pressing piece is fastened to a rocker for moving a sealing element, in fact in a position of adjustment for adjusting a fixed valve stroke. Further, a valve and a valve bank are suggested.