Abstract: The invention relates to a diaphragm for a diaphragm valve having a functional region and a clamping region surrounding the functional region, at least one main body of the diaphragm freeing at least one opening in the clamping region, in which at least one gripping aid comprising a plastics material is provided.

Abstract: The invention relates to a pinch valve that includes: a main body having a receiving space for a tube section, wherein the receiving space comprises a lateral opening of the main body; a counter-bearing section for a compressor that moves along a actuating axis; and a closure element which is movably fastened to the main body and which is movable relative to the main body between a first position, in which the closure element closes the lateral opening of the main body at least in sections, and a second position, in which the closure element exposes an insertion opening for the tube section.

Abstract: A tensioning assembly for a process valve is provided, including a housing having an interface for rigid connection to a valve body, a drive which is arranged so as to be fixed to the housing, a gearing supported on the housing and driven by the drive, and a tensioning element arranged on the output of the gearing, wherein the tensioning element includes a contact surface which is designed to clamp a lateral outer collar of a diaphragm of the process valve between the tensioning element and the valve body.

Abstract: The invention relates to a diaphragm for a diaphragm valve. The diaphragm has a functional region and a fastening portion, which surrounds the functional region. In a relaxed state, the functional region includes a central portion, which protrudes on a wet side of the diaphragm; a lateral portion, which protrudes on a dry side of the diaphragm, the lateral portion being curved, at least in parts, toward the dry side of the diaphragm; and an intermediate portion, which is arranged between the central portion and the lateral portion and is curved, at least in parts, toward the wet side of the diaphragm.

Abstract: The invention relates to a valve actuator having an actuator housing and an actuator element, in particular a pneumatic piston or a control diaphragm, that is movably mounted within the actuator housing. In an assembly state of the valve actuator, at least one first contour of the actuator element engages in at least one second contour which is fixed relative to the actuator housing in such a way that a rotation of the actuator element about an actuating axis is blocked in at least one direction of rotation.

Abstract: The invention relates to a valve body for a process valve, wherein an interior space of the valve body connects at least two ports to one another in a fluid-conducting manner, wherein at least one partition wall separates adjacent flow chambers of the interior space from one another, and wherein an outer shell and the at least one partition wall, at least in a blocking portion of the valve body extending essentially perpendicularly to a blocking axis, are made of a flexible material.

Abstract: The invention relates to a method for producing a diaphragm for a diaphragm valve. The method includes the steps of conveying a plastics melt through at least one feed channel into a mold cavity which is delimited by a first mold and a second mold; moving the first and second molds toward one another; removing the at least one diaphragm from the mold cavity; and cutting off a sprue from the at least one diaphragm removed from the mold cavity.

Abstract: The invention relates to a method for diagnosing a diaphragm valve having the following steps: a) providing at least one first quantity that characterizes a valve diaphragm, at least one second quantity that characterizes the diaphragm valve, and at least one third quantity that characterizes operation of the diaphragm valve to a determination device; determining a quantity that characterizes a current state of the valve diaphragm, in particular a current wear, from the first, second, and third quantities by means of the determination device by using at least one algorithm.

Abstract: A method for operating a diaphragm valve including the step of reading out data, which characterize at least one property of a diaphragm of the diaphragm valve, from at least one data memory integrated into the diaphragm valve, by a reading device. The method further includes the steps of: (a) transmitting the read-out data to a processing device which is arranged remote from the reading device and the diaphragm valve and (b) synchronizing the transmitted data with data present in the processing device.

Abstract: A method for operating a diaphragm valve including the step of reading out data, which characterize at least one property of a diaphragm of the diaphragm valve, from at least one data memory integrated into the diaphragm valve, by a reading device. The method further includes the steps of: (a) transmitting the read-out data to a processing device which is arranged remote from the reading device and the diaphragm valve and (b) synchronizing the transmitted data with data present in the processing device.

Abstract: The invention relates to a method for diagnosing a diaphragm valve having the following steps: a) providing at least one first quantity that characterizes a valve diaphragm, at least one second quantity that characterizes the diaphragm valve, and at least one third quantity that characterizes operation of the diaphragm valve to a determination device; determining a quantity that characterizes a current state of the valve diaphragm, in particular a current wear, from the first, second, and third quantities by means of the determination device by using at least one algorithm.

Abstract: An intermediate piece for a stop valve, in particular a membrane valve, for fluids including a pressure piece. The pressure piece has at least two locking slides for locking a locking member of a closure element. The intermediate piece includes a cylinder in which the pressure piece can be guided in axial manner. The intermediate piece has a recess, which is arranged in such a way that in mounting position of the pressure piece the locking slide can be shifted into the recess, thus releasing the locking member.

Abstract: A closure element for a valve device for fluids and a valve device for fluids is described. The closure element includes a membrane and a valve device protruding from the membrane. The valve device has an outer diameter recess which is configured so that the closure element can be locked by means of a locking slide which can be moved toward the outer diameter recess substantially orthogonally to a feed axis.

Abstract: The invention relates to a coupling for releasably connecting pipes or pipe-like elements in a fluid-tight manner, having a first coupling part and a second coupling part which are connectable via a screw nut or the like, wherein the coupling parts are each provided with a radially outwardly extending flange and the flanges have end faces which are provided with a profile for sealing off the coupling, wherein the profile comprises at least one circumferential groove and at least one circumferential protrusion engaging in the groove, said groove and protrusion forming a fluid-tight seal between one another in the coupled state, and wherein the protrusion comprises a lateral sealing face which has an outwardly bulging shape in cross section, and wherein the groove has a corresponding lateral counterpart sealing face that is inclined with regard to the longitudinal axis of the coupling, such that, in the installation position, the sealing face of the protrusion is pressed against the counterpart sealing face of

Abstract: A membrane which is provided with a membrane surface that represents the functional region of the membrane and which is provided with a tab that projects beyond the membrane surface is described. The membrane and the tab are constructed from a number of layers, wherein at least one of the layers consists of an elastomer. Arranged in the tab is an electronic data carrier. The tab has an upper and a lower layer. The data carrier is enclosed by the layers of the tab and the upper and the lower layer.

Abstract: A diaphragm is described, wherein the diaphragm includes at least two layers, wherein at least one of the two layers is made of an elastomer, and wherein an electric circuit is provided between the two layers. In at least one of the two layers of the diaphragm, a conductive insert is provided, by means of which an electrical connection of the electric circuit to or from the outside of the diaphragm can be achieved.

Abstract: A membrane valve for fluid media, comprising a valve body, a membrane, a pressure piece, and a drive) for the pressure piece. The membrane is coupled to the pressure piece by a connecting element, having a wall which projects from the membrane in the direction of the pressure piece. A latching hook laterally protrudes from one side and a free space is provided on the other side such that the wall. The latch hook can be deflected in order to connect the latching hook to a corresponding receiving portion on the pressure piece. A stationary pin engages into the free space when the membrane is raised from the valve seat of the valve body and protrudes out of the free space when the membrane is resting on the valve seat.

Abstract: A membrane which is provided with a membrane surface that represents the functional region of the membrane and which is provided with a tab that projects beyond the membrane surface is described. The membrane and the tab are constructed from a number of layers, wherein at least one of the layers consists of an elastomer. Arranged in the tab is an electronic data carrier. The tab has an upper and a lower layer. The data carrier is enclosed by the layers of the tab and the upper and the lower layer.

Abstract: A diaphragm valve, more particularly for fluid media, includes a valve body, a diaphragm and a connection piece that can be activated by a drive in order to act on the diaphragm, wherein the valve body, the diaphragm and the connection piece are made of plastic. The valve body and the diaphragm are made of different plastics, wherein the plastic of the diaphragm is more elastic than the plastic of the valve body.

Abstract: A diaphragm valve, in particular for fluid media, includes a valve body, a diaphragm, and a connecting piece which can be actuated by a drive unit to act on the diaphragm, wherein the valve body and the diaphragm are made of plastic. Two mutually independent seals are provided for sealing the fluid medium with respect to the outside, wherein the valve body and the diaphragm are welded to each other, and the diaphragm is mechanically sealed between the drive unit, or an intermediate piece, and the valve body.