Abstract: A process component having a longitudinal axis is provided. The process component includes a housing that surrounds an interior space and includes a first connector and a second connector, a tappet located in the interior space, a first magnet arrangement located on the tappet, and a second magnet arrangement that is magnetically coupled to the first magnet arrangement and is rotatable on the housing about the longitudinal axis. In order to create a process component that is easily scalable in size and can be easily cleaned, the tappet cooperates with a guide provided in the interior space, displacing the first magnet arrangement towards the second magnet arrangement to convert a rotary movement of the second magnet arrangement into an axial movement of the tappet.

Abstract: A safety device comprises a main body that extends along a longitudinal axis, a first coupling portion and a second coupling portion, and a first sleeve and a second sleeve. The first and second sleeves are arranged on the main body so as to be movable along the longitudinal axis. The first and second sleeves and the main body are selectively movable into a position in which at least one of the first sleeve or the second sleeve cover the associated first coupling portion and second coupling portion. The covering sleeve can be locked in that position. An arrangement comprising a control head and a drive with the safety device and a method for arranging the drive and the safety device are also described.

Abstract: The invention relates to a tank cleaning device comprising a tank cleaner (1) having a drive means (18) comprising a drive means component, a nozzle holder (5) rotatable about two axes (D, L) and at least one nozzle (6) arranged on the nozzle holder (5). In order to adapt the tank cleaner quickly to a particular use thereof, it is proposed that at least one of the components drive means (18), drive means component, nozzle holder (5) and nozzle (6) be designed as a replaceable element, that the type of replaceable element be defined by said component, that the tank cleaner (1) include a replaceable element holder, and that a first group (27) comprising at least two replaceable elements of one type be provided. A method for operating a tank cleaning device and a method for cleaning a tank are also proposed.

Abstract: A gate valve includes a housing, a first port, a second port, a passage between the ports, a valve seat formed at the passage, a closing element, which has a closure member that can be brought into sealing contact with the valve seat and has a valve stem, and a seal that cooperates with a seat. To improve the cleanability of the seal, the seat includes a closed position seat mounted on a component that is displaceable relative to the valve stem.

Abstract: A drive that is drivable by a pressure medium is described. The drive is used for a valve that can be used in hygienic applications. The drive includes a drive housing, in which a main piston is movable along a stroke direction by the action of the pressure medium and can be coupled to a rod, and a stop for limiting a movement of the main piston. To improve the drive, it is proposed that an additional piston is provided, which is movable by the action of the pressure medium. The stop can be carried along by the additional piston. The disclosure also describes a double-seat valve comprising such a drive and to a method for operating such a drive.

Abstract: A valve has a closing member that can be brought from a closed position into an open position by a rotational movement about an axis of rotation transverse to a through-flow direction. A shaft is connected to the closing member and comprises a shaft end. A valve housing has an adjusting device, which has an adjusting device housing and comprises a receptacle in which the shaft end can be received. In order to be able to fix the valve in a switching position, a shaft portion comprises a passage that can be made congruent with two housing-side openings. The passage and the openings can be penetrated by a securing body, and the connection between the shaft and the shaft portion is secured against release when the passage and the openings are congruent.

Abstract: A valve device, in particular a lifting valve device, includes a housing, a valve seat, and a movable closing body that can be brought into an open position in an opening movement and into a closed position in a closing movement. In the closed position, the closing body and the valve seat are in sealing contact. The valve device also includes a piston to which a pressure medium can be applied and that is received in a cylinder. To improve hygienic properties, it is proposed that the cylinder is part of the closing body.

Abstract: The invention relates to a cleaning device (100) for cleaning a container, in particular an inner wall of a container, comprising: a base member (1) that can be coupled to a feed pipe for supplying a cleaning agent, a rotating member (3) mounted rotatably about a rotational axis (A) on the base member (1), a support member (2) having a first end portion (16) and a second end portion spaced apart along the rotational axis (A), wherein the first end portion (16) can be coupled to the base member (1) and the second end portion to the rotating member (3) in such a way that in the coupled state the rotating member (3) is rotatably accommodated between the base member (1) and the support member (2), wherein the cleaning device (100) further comprises a coupling means (15) which is adapted to lock the support member (2) in place relative to the base member (1) in the coupled state. The invention also relates to a method for assembling a cleaning device (100).

Abstract: A valve has a housing that delimits an interior, a first connection, a second connection, a passage that fluidically connects the first and second connections, first and second closing elements received in the interior and surrounding an intermediate space connected to a third connection, and an adjustment device that, in a closed position, brings the first closing element into sealing contact with a first valve seat formed in the passage and the second closing element into sealing contact with a second valve seat formed in the passage. The first closing element is sealingly received in the second closing element. For cleaning, the adjustment device forms a gap that connects the intermediate space to the interior, between the first and second closing elements and simultaneously releases the first and second closing elements from the first and second valve seats in an open position. A cleaning method is also described.

Abstract: A gate valve includes a housing, a first port, a second port, a passage between the ports, a valve seat formed at the passage, a closing element, which has a closure member that can be brought into sealing contact with the valve seat and has a valve stem, and a seal that cooperates with a seat. To improve the cleanability of the seal, the seat includes a closed position seat mounted on a component that is displaceable relative to the valve stem.

Abstract: A process component includes a first connection, a second connection, and an adjusting element arranged in a hollow space fluidically connecting the first connection to the second connection and that can be brought into a first position and second position in an axial direction within the hollow space. The component includes a permanent magnet, a first electrical coil, and a second electrical coil arranged in succession in the axial direction to create a simple process component whose size can be effectively scaled. The magnet, adjusting element, and a yoke form a first closed magnetic circuit in the first position and a second closed magnetic circuit in the second position. The first and second coil respectively compensate for the first circuit and the second circuit. The hollow space and adjusting element are shaped such that the valve can be penetrated by a fluid flow formed between the first and second connections.

Abstract: A lifting valve includes a first and a second connection, a passage connecting the first and second connections and surrounded by a valve seat, a closing element that can be brought into sealing contact with the valve seat, and an actuator to bring about the sealing contact. The closing element includes a sealing arrangement comprising a first part, a second part releasably connected to the first part, a first groove formed in the first part, a second groove, and a clamping gap. The second groove and clamping gap are formed between the first and second parts, and a seal comprising a first leg, a second leg, and a third leg is received in the sealing arrangement. The first leg is received in the first groove, the second leg is received in the second groove, and the third leg is received in the clamping gap.

Abstract: A double-seat valve includes a housing having a passage between first and second connections. First and second valve disks are arranged in a housing internal space. A leakage space formed in the passage in the valve closed position is sealed off by the second valve disk. A hollow rod connected to the first valve disk has a leakage channel connecting the leakage space and a housing part. A cleaning gap is formed between the second valve disk and a passage wall. A housing opening is sealed with a diaphragm that separates the housing part from the internal space. A section of the first valve disk is received in an opening contour in the passage in the valve closed position, and delimits a cut-out in the first valve disk, in which the second valve disk is received in the valve open position.

Abstract: A tank cleaning nozzle (2) configured to be mounted on a tank (6), wherein said tank cleaning nozzle (2) comprises an inlet (42), an outlet (26) and an interior space (54) being in fluid communication with the inlet (42) and the outlet (26), The tank cleaning nozzle (2) is configured to receive a pressurized liquid (36) through the inlet (42) and inject the liquid (36) through the outlet (26) into the tank (6), The tank cleaning nozzle (2) comprises a moveably arranged closing structure (34, 52) configured to close the outlet (26). The closing structure (34, 52) is arranged and configured to be moved into a position, in which the outlet (26) is provided with a free passage, through which the liquid (36) leaving the outlet (26) is injected into the interior space (54) without colliding with the closing structure (34, 52).

Abstract: A double-seat valve includes a first closing element associated with a first valve seat, a second closing element associated with a second valve seat, a hollow rod connected to the second closing element, a valve rod connected to the first closing element and extending through the hollow rod, a first diaphragm fastened to the hollow rod and to a housing of the valve, and a second diaphragm arranged to seal a channel between the valve rod and hollow rod. The second closing element includes an annular body connected to a supporting section, the annular body and the supporting section designed to clamp the second diaphragm and the connection region to a gap seal against an interior. To simplify the design and to ensure reliable functioning under hygienic conditions, the supporting section has a leakage channel that forms a section of a fluid connection between the connection region and the channel.

Abstract: A tank outlet (1) of a tank (100) comprising a tube fitting body (10), with an inlet region (11), which can be mounted on an outlet region (111) of a tank (100), a vortex breaker (20), which is mounted solely on the tube fitting body (10), wherein the vortex breaker (20) extends into the tank (100) through the inlet region (11) and does not touch the tank (100). Moreover, a method for mounting a corresponding vortex breaker (20) on a tank outlet (1) of a tank (100) is claimed.

Abstract: A self-priming pump assembly comprises a series connection of a liquid ring pump functioning as a rotating displacement pump and a normally-priming centrifugal pump. The self-priming pump assembly improves the fluid mechanics conditions for the flow of fluids toward and into a return line through the inclusion of a first connection opening in the meridian plane of the centrifugal pump that possesses a bulge enclosing a sector of the longitudinal axis of the first connection opening, where the bulge is one-sided and oriented toward a rotary axis of the pump assembly, and the bulge continuously expands, directly or indirectly, the first connection opening toward the impeller plane. At its end section facing the impeller plane, a transitional surface of the bulge continuously transitions into the lateral boundary surface, or an inner peripheral wall of the ring channel adjoining the lateral boundary surface.

Abstract: A self-priming pump is described that has a housing, an inlet, and an outlet. A first impeller has a first pump section that is arranged in a first chamber, and a second impeller has a second pump section that is arranged in a second chamber. A shaft section is provided between the pump sections, and has a shaft end and penetrates an opening in a housing wall. To improve the net positive section head of the pump, the shaft section between a constriction and the shaft end is formed to taper from the shaft end toward the constriction, and the first impeller and shaft section between the constriction and first pump section has a smooth contour.

Abstract: A rotating cleaner (1) comprising a housing (2) which has a cavity (10) and an inlet (9) which is connectable to a fluid supply line, a shaft (5) extending in sections into the cavity (10), a sprayer body (3) which is non-rotatably connected with the shaft (5) and has an outlet (8), and further comprising a sliding bearing for rotatably supporting the shaft (5) in the housing (2), said sliding bearing having a rotating bearing surface (23), an idle bearing surface (22) and a bearing gap. To improve the cleanability and the rotational characteristics of the rotating part, it is proposed that the rotating bearing surface (23) and the idle bearing surface (22) are each formed as a contiguous surface for supporting the shaft (5) in the radial and axial direction.

Abstract: The invention relates to a rotating cleaner (1) comprising a housing (2) which has a cavity (10) and an inlet (9) which is connectable to a fluid supply line, a shaft (11) extending in sections into the cavity (10), a sprayer body (3) which has an interior space (14), said sprayer body (3) being connected non-rotatably with the shaft (11) and including an outlet opening (6), and further comprising a bearing (16) for rotatably supporting the shaft (11) in the housing (2). To improve the spray pattern, it is proposed that the fluid manifold (13; 13?) designed for uniform distribution of the fluid is arranged in the interior space (14).