Abstract: A fluid meter has a housing comprising a flow channel for fluid to be measured and at least one elongate module-receiving opening forming a passage from an outer surface of the housing to the flow channel. At least one fluid-measuring module, prefabricated separately, from the housing with a base section formed as a waveguide for surface acoustic waves, and at least one signal transformer to excite surface acoustic waves in the waveguide and/or receive surface acoustic waves from the waveguide is provided. When inserted into the module-receiving opening, the base section of the fluid-measuring module forms part of the flow channel inner wall and contacts fluid flowing through it. Surface acoustic waves emitted by the signal transformer can be coupled out of the waveguide and can propagate through fluid in the flow channel as bulk acoustic waves and/or bulk acoustic waves can be coupled into the waveguide and received by the signal transformer.

Abstract: A valve linear drive provided for connection to a valve body having a valve seat includes a drive housing, a valve closure member, an actuator, and a spring device. The valve closure member is adjustable along an adjustment axis (V) between an open position and a closed position by means of the actuator and an actuating means. The spring device urges the actuating means into the open position or into the closed position. Further, the spring device includes a plurality of springs and a receiving unit for the springs. Here, each spring has its own spring chamber formed in the receiving unit, in which the associated spring is inserted. Furthermore, a valve having such a valve linear drive is provided.

Abstract: A valve drive includes a housing in which a valve actuator with a dielectric elastomer transducer is arranged. A first end of the valve actuator is coupled to an actuating part for actuating a valve element and a second end of the valve actuator is coupled to a holding part, which is mounted in the housing via an adjusting device for adjusting a mechanical pretension of the dielectric elastomer transducer. The adjusting device comprises a single adjusting screw.

Abstract: The invention relates to a safety valve comprising a pilot valve element, a pilot valve actuator, a main valve element cooperating with a main valve seat, a permanent magnet being provided which is associated with the main valve element and which is adapted to hold the latter in an open position, and a main valve actuator being provided which cooperates with the main valve element.

Abstract: Fluid meter with a fluid housing and a method for manufacturing the fluid housing, which comprises a fluid inlet, a fluid outlet and a fluid channel, which extends between the fluid inlet and the fluid outlet and which is fluidically coupled to the fluid inlet and the fluid outlet, wherein the fluid housing has a side facing the fluid channel, to which a fluid-measuring module is assigned, which is in direct contact with a fluid flowing through the fluid channel at a fluid-side interface, wherein the fluid-measuring module is surrounded by the fluid housing, and wherein the fluid-measuring module is equipped to generate surface acoustic waves which propagate along the fluid-side interface of the fluid-measuring module.

Abstract: A valve module with a wireless energy-transfer unit. The wireless energy-transfer unit has at least one energy-transmitting unit and at least one energy-receiving unit. The energy-receiving unit is arranged on a valve piston, on a valve spindle, on a valve actuator housing, on a valve housing, or on a valve-closing element. The energy-receiving unit may be connected to a sensor unit located inside the valve actuator housing.

Abstract: A diaphragm assembly for a diaphragm valve is described, which has a diaphragm which includes a functional portion adapted to cooperate with further components of the diaphragm valve and to separate opposite chambers. The diaphragm further includes a tab projecting laterally from the functional portion and having a through-opening provided therein. A marking element is fastened in the through-opening. In addition, a diaphragm valve having such a diaphragm assembly is presented.

Abstract: A diaphragm valve having a movable diaphragm (20) configured as a closure element has a valve housing (6) and an actuator (8), the diaphragm (20) being clamped between a flange (18) of the valve housing and a base (10) of the actuator (8) and being provided with a first identification means (32) in which data which are adapted to be read out wirelessly are stored. A further identification means (50, 56) is also fastened to the flange (18) and/or the base (10). The read-out surfaces of the further identification means (50, 56) are substantially at right angles to the read-out surface of the identification means (32) on the diaphragm (20).

Abstract: A fluid housing for a fluid collection system or a fluid distribution system is described, which comprises at least two fluid housing modules adjoining one another along an alignment direction. On each fluid housing module at least one fluid connection is provided, which is connected fluidically to a first central fluid duct via a respectively assigned lateral fluid duct. In addition, on each of the fluid housing modules at least two contact surfaces are provided, which protrude with respect to an assigned fluid housing module basic body along the alignment direction. Adjacent fluid housing modules are positioned in relation to one another via the contact surfaces. Furthermore, a fluid collection system or a fluid distribution system with such a fluid housing is presented.

Abstract: A closed-loop control valve module for closed-loop controlling a fluid flow is described, which comprises an electrical valve actuator motor, wherein a valve spindle comprising a frustoconical sealing section is displaceable by means of the valve actuator motor along a valve spindle axis and the frustoconical sealing section, depending on the position of the valve spindle, releases or separates off a flow channel connecting a fluid inlet and a fluid outlet. A pressure compensation channel is provided which, at least in the closed state of the closed-loop control valve module, connects an end of the valve spindle opposite the valve actuator motor to a pressure compensation area or the fluid inlet in terms of flow.

Abstract: A valve control head is provided, comprising a housing, control electronics, at least one control valve, fluid connections, electrical connections, a first measuring object, rigidly coupled to a first valve closure part, and a position measuring system, comprising measuring electronics and a first position sensor, wherein the first position sensor can detect a position of the first measuring object, and wherein the valve control head comprises a fastening device formed to couple a second position sensor.

Abstract: A fluid meter has a measuring tube which has a fluid channel allowing a fluid (F) to flow through and which has a measuring section in which at least one area of a measuring tube wall is formed as a waveguide for surface acoustic waves, which forms an interface with the fluid (F), and at least one transmitter for exciting acoustic waves in the waveguide as well as at least one receiver for receiving acoustic waves from the waveguide, wherein acoustic waves excited by the transmitter can propagate through the fluid (F) as a bulk wave (V) and the bulk wave (V) has at least one reflection point (IP) on the measuring tube wall. The measuring tube wall has a first wall thickness (T1) in the area of the transmitter and in the area of the receiver and has a second wall thickness (T2) which differs from the first wall thickness (T1) in the area of all reflection points (IP) of the bulk wave (V).

Abstract: A gas transfer system including 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 a fluid flow component, 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 soak gas from the fluid flow component to the gas discharge canister. A humidification system or device is included for the sterile humidification of sterilizing gas. Additional related devices, systems and methods are provided.

Abstract: A valve drive system for a pneumatic or hydraulic valve is provided, comprising a drive unit and at least two cup-shaped upper casing parts having different geometries, wherein the drive unit comprises a sleeve, a piston being movable in the sleeve in a linear way, a drive spindle mounted on the piston, and a mounting portion, wherein each of the cup-shaped upper casing parts is couplable by means of the mounting portion to the drive unit, to close the valve drive system to the upper side.

Abstract: A modular connection module for a field device is described, comprising an adapter board with at least one multipolar, universal contact area for the connection of plug-in connectors as well as a central electrical output interface for the electrical connection of the modular connection module to the field device. The multipolar, universal contact area is formed to accommodate plug-in connectors with different connection diagrams, wherein the connection diagram is defined by the arrangement of the contacts of the plug-in connector. Further, a plug-in connector assembly and a field device are described.

Abstract: A circuit and a method of controlling a circuit is provided for an electronic control of an electromagnetic drive of an electromagnetic valve. The circuit provides a control signal for the electromagnetic drive which has a high level and a low level. The control signal comprises at least a first time interval having a first duty cycle, an optional second time interval having a second duty cycle, and a third time interval having a third duty cycle, the first, second and third duty cycles being less than one. The first duty cycle is greater than the second duty cycle and the second duty cycle is greater than the third duty cycle.

Abstract: A valve island has at least one valve module and an adapter module, wherein the adapter module includes a first data line and a first voltage supply line, which each extend continuously from an interface on a first front side forming an outer side of the adapter module to an interface on a second side of the adapter module pointing into the valve island. In the adapter module a circuit unit is provided, which within the adapter module is connected to the first data line and/or the first voltage supply line and from which within the adapter module an internal data line and/or an internal voltage supply line proceeds or proceed, which each extends or extend to an interface on the second side of the adapter module.

Abstract: An actuating unit for a process valve is described, which comprises a pilot valve unit, a separate removable seal arranged between two parts through which a fluid can flow, and a piston configured for the adjustment of the process valve. The seal has through openings for the passage of fluid, and the adjacent parts have holes, such that different holes are in fluid communication with each other via the through openings or are fluidically separated due to an intermediate wall portion of the seal depending on the fitting position of the seal. A process valve having such an actuating unit is furthermore described.

Abstract: A film transducer has a holding part, an electroactive composite structure which includes at least one deformable carrier and at least two electrodes arranged on opposite sides of the deformable carrier, and a load application member which is mounted to the composite structure. The holding part engages two ends of the composite structure facing away from each other and the load application member is arranged between the two ends of the composite structure.

Abstract: A valve assembly has a basic module and a plurality of valve modules which are mounted on the basic module side by side along a line-up direction, the basic module having a lower portion, an upper portion and a connecting portion connecting the lower and the upper portion, which enclose a receiving space for at least one valve module on three sides. The basic module has a bottom surface facing outwards and an upper side facing outwards. At least one external fluid connection is provided which is arranged on the bottom surface or on the upper side. Furthermore, at least one external electrical connection is provided which is arranged on the bottom surface or on the upper side.