Abstract: An apparatus for mixing a viscous flowable medium includes a receptacle for receiving the viscous flowable medium and has a substantially vertically arranged rotatable stirring axle and a stirring assembly that comprises at least one stirring element. In one embodiment, the stirring element is arranged at a lower end of the stirring axle substantially perpendicular thereto for rotation of the stirring element around the stirring axle. The stirring elements are shovel-like and are open towards an end of the stirring axle remote from the lower end and inclined with a slant angle in rotation direction towards a bottom of the receptacle, such that said viscous liquid upon rotation of the stirring axle is at least partly directed upwards in the receptacle by the at least one shovel-like stirring element.

Abstract: An apparatus for mixing a viscous flowable medium includes a receptacle for receiving the viscous flowable medium and has a substantially vertically arranged rotatable stirring axle and a stirring assembly that comprises at least one stirring element. In one embodiment, the stirring element is arranged at a lower end of the stirring axle substantially perpendicular thereto for rotation of the stirring element around the stirring axle. The stirring elements are shovel-like and are open towards an end of the stirring axle remote from the lower end and inclined with a slant angle in rotation direction towards a bottom of the receptacle, such that said viscous liquid upon rotation of the stirring axle is at least partly directed upwards in the receptacle by the at least one shovel-like stirring element.

Abstract: A gasket (1) and seat (2) system for sealing a joint, such as flanges (3, 4), tube or pipe couplings, housings, shafts, is disclosed. The gasket (1) comprises according to one embodiment an inner portion (10), with a wall (17) facing an interior of the coupling and an outer portion (11), which extends axially forming radial end walls (12, 13). The inner portion (10) of the gasket (1) is formed with an angled wall (18), making the inner portion (10) expand inwards, which angled wall (18) interacts with a matching angled wall (25) of the seat (2), such that the joint has provisions for increasing the sealing ability in cases with increased pressure in the coupling.

Abstract: A seal assembly (100) for sealing a rotatable shaft entering a workspace is provided, the seal 5 assembly (100) comprising first and second sets of seal rings (110?, 110?; 170, 170?) separated by a space defined by the seal ring sets (110?, 110?; 170, 170?), an outer surface of a shaft sleeve (120) or the shaft and an inner surface of a body (140, 150) circumventing 10 the outer surface of the shaft sleeve (120) or the shaft and filled with a lubricating and/or cooling fluid, wherein the outer surface of the shaft sleeve (120) or the shaft is provided with grooves (120?), or any other irregular surface, wherein the space is 15 provided with at least one fluid directing member (160, 160?) that is configured to provide homogenous distribution of lubrication and/or homogenous distribution of cooling over a substantial part of the seal assembly (100) in interaction with the shaft 20 sleeve or the shaft. A method and a system are also provided.

Abstract: A seal assembly (100) for sealing a rotatable shaft entering a workspace is provided, the seal 5 assembly (100) comprising first and second sets of seal rings (110?, 110?; 170, 170?) separated by a space defined by the seal ring sets (110?, 110?; 170, 170?), an outer surface of a shaft sleeve (120) or the shaft and an inner surface of a body (140, 150) circumventing 10 the outer surface of the shaft sleeve (120) or the shaft and filled with a lubricating and/or cooling fluid, wherein the outer surface of the shaft sleeve (120) or the shaft is provided with grooves (120?), or any other irregular surface, wherein the space is 15 provided with at least one fluid directing member (160, 160?) that is configured to provide homogenous distribution of lubrication and/or homogenous distribution of cooling over a substantial part of the seal assembly (100) in interaction with the shaft 20 sleeve or the shaft. A method and a system are also provided.

Abstract: An apparatus for mixing a viscous flowable medium includes a receptacle for receiving the viscous flowable medium and has a substantially vertically arranged rotatable stirring axle and a stirring assembly that comprises at least one stirring element. In one embodiment, the stirring element is arranged at a lower end of the stirring axle substantially perpendicular thereto for rotation of the stirring element around the stirring axle. The stirring elements are shovel-like and are open towards an end of the stirring axle remote from the lower end and inclined with a slant angle in rotation direction towards a bottom of the receptacle, such that said viscous liquid upon rotation of the stirring axle is at least partly directed upwards in the receptacle by the at least one shovel-like stirring element.

Abstract: A shaft sealing assembly for static and dynamic axial sealing of a centrally located rotating and movable shaft is provided. The assembly includes at least one first sealing member for sealing said shaft, at least one rotor member-attached to said shaft, and a stator member attached to a housing. A first sealing member is arranged in a recess in said rotor member effectively sealing one side of the assembly from its other side when a pressure difference exists between the media on the two sides of the assembly. Upon rotation of the shaft, the static sealing member is centrifugally moved axially and radially away from its static sealing position and friction between the sealing member and the stator is eliminated. Dynamic sealing is affected by a pressure difference caused by a turbine effect of the rotor member.

Abstract: A gasket (1) and seat (2) system for sealing a joint, such as flanges (3, 4), tube or pipe couplings, housings, shafts, is disclosed. The gasket (1) comprises according to one embodiment an inner portion (10), with a wall (17) facing an interior of the coupling and an outer portion (11), which extends axially forming radial end walls (12, 13). The inner portion (10) of the gasket (1) is formed with an angled wall (18), making the inner portion (10) expand inwards, which angled wall (18) interacts with a matching angled wall (25) of the seat (2), such that the joint has provisions for increasing the sealing ability in cases with increased pressure in the coupling. In an embodiment, the gasket may further have the wall (17) facing the interior being adapted to be flush with an interior surface (26) when have provisions for heat expansion and elevated pressures, in order to remain flush with the coupling at elevated temperatures and in order to ensure sealing at elevated pressures.

Abstract: The invention relates to a single seal, and more specifically to a seal for a rotary shaft extending through a wall, e.g. that of a pump housing. The single seal exhibits one single sealing location between a stationary and a rotating sealing ring. The seal is attached by means of a flange (12) on to the wall in order to seal off a chamber inside the wall against the shaft (22) and towards the exterior. According to the invention, the sealing rings (1, 2) are biased against each other by means of an axially movable member (5) extending through the wall in order to increase the contact between the sealing rings (1, 2). The resilient member may be a slitted sleeve (5) or a coil spring.

Abstract: A shaft sealing assembly for static and dynamic axial sealing of a centrally located rotating and movable shaft is provided. The assembly includes at least one first sealing member for sealing said shaft, at least one rotor member-attached to said shaft, and a stator member attached to a housing. A first sealing member is arranged in a recess in said rotor member effectively sealing one side of the assembly from its other side when a pressure difference exists between the media on the two sides of the assembly. Upon rotation of the shaft, the static sealing member is centrifugally moved axially and radially away from its static sealing position and friction between the sealing member and the stator is eliminated. Dynamic sealing is affected by a pressure difference caused by a turbine effect of the rotor member.

Abstract: The invention relates to a single seal, and more specifically to a seal for a rotary shaft extending through a wall, e.g. that of a pump housing. The single seal exhibits one single sealing location between a stationary and a rotating sealing ring. The seal is attached by means of a flange (12) on to the wall in order to seal off a chamber inside the wall against the shaft (22) and towards the exterior. According to the invention, the sealing rings (1, 2) are biased against each other by means of an axially movable member (5) extending through the wall in order to increase the contact between the sealing rings (1, 2). The resilient member may be a slitted sleeve (5) or a coil spring.

Abstract: The invention relates to a single seal, and more specifically to a seal for a rotary shaft extending through a wall, e.g. that of a pump housing. The single seal exhibits one single sealing location between a fixed and a rotary sealing ring. The seal is fitted onto the wall by means of a flange in order to seal off a chamber inside the wall against the shaft and towards the exterior. According to the invention, the single seal exhibits an outer sealing ring (1) and an inner sealing ring (2). These sealing rings are in sliding and sealing contact with each other. The outer sealing ring (1) is fastened to the flange (12) and the inner sealing ring (2) is fastened to an axially displaceable sleeve (8). The sleeve is in turn affixed to and rotating with the shaft (22), and extends through the wall and the flange (12). The seal also has a spring device (5) arranged outside the wall and providing a force for increasing the contact between the sealing rings (1, 2).

Abstract: A hygienic sealing arrangement for a leadthrough shaft passing through a cover (4) for use in the food industry or the like in which an outer seal ring (1) and an inner seal ring (2) are bonded to the cover (4) by vulcanization. Upon assembly, the side of the outer seal ring (1) facing the medium to be sealed off is somewhat compressed because its contact surfaces (6, 7) in the cover (4) and the adjoining wall (5), respectively, converge toward the medium side. The inner seal ring is in the form of a lip seal (2) and bears against a part (3) of the lead-through shaft which part (3) can move somewhat back and forth but which does not rotate. The side face of the lip seal (2) is exposed to the medium being sealed off of arcuate curvature to form a recess so that the edge of the lip is pressed against the abutting surface by the pressure (P) of the product in the recess.

Abstract: The present invention consists of a shaft packing with an inner seal (4) and an outer seal (2) which are biased by means of springs (5) and an intermediate ring (1). The spring package and the major part of the shaft packing are positioned on the outside of a wall (20) of a container or the like, on the inside of which container an aggressive medium may be found. On the inside of the wall and in contact with the medium there are only a counter ring (4'), the inner seal (4), the intermediate ring (1) and a mounting (14). All these parts have smooth surfaces without grooves, notches or the like in order to avoid that the possibly aggressive medium accumulates on the shaft packing. The shaft (19) is journalled in the wall (20) by the mounting (14), and the contact surfaces (22) between the mounting (14) and the wall (20) have arcuate cross-sections.