Abstract: In a modular centrifugal separator system and an exchangeable separation insert, a separation aid is arranged in a separation space of the separation insert. The separation aid includes a number of separation sheets, each separation sheet comprising axially extending surfaces. A fluid connection for a separated heavy phase is arranged at a first axial end portion of the insert, and a fluid connection for a liquid feed mixture is arranged at a second axial end portion of the insert.

Abstract: A modular centrifugal separator system includes a base unit, an exchangeable separation insert arranged therein, an exchangeable tube kit, and an interface for fluid communication between the exchangeable separation insert and the exchangeable tube kit. The exchangeable separation insert includes a rotor casing forming a separation space, and a first half of the interface. The exchangeable tube kit includes at least one tube for one of the liquid feed mixture, the heavy phase, and the light phase, and a second half of the interface. The modular centrifugal separator system includes a removable sealing member covering the first and/or second half of the interface.

Abstract: A separator system includes a base unit and an exchangeable separation insert. The base unit includes a drive arrangement. The exchangeable separation insert includes a rotor casing configured to rotate about a rotational axis and a first stationary portion. The drive arrangement includes an entrainment member through which a portion of the exchangeable separation insert including the first stationary portion extends. The entrainment member engages with the rotor casing. The entrainment member has an axial extension <50%, such as <40% of a total axial extension of the rotor casing. The rotor casing is supported in the entrainment member over a distance <30%, such as <20%, such as <10% of the total axial extension of the rotor casing.

Abstract: A seal assembly for providing a seal between a first zone and a second zone includes a rotatable sealing member including a first sealing ring, a stationary sealing member including a second sealing ring and a device for bringing the first and second sealing rings into engagement with each other. The first and second sealing rings are arranged so that a double contact seal having at least one chamber arranged at a radial plane is formed upon engagement between the first and second sealing rings. The seal assembly further includes at least one fluid connection to the chamber. A centrifugal separator includes such a seal assembly.

Abstract: A centrifugal separator for separation of at least two components of a fluid mixture which are of different densities. The centrifugal separator includes a rotor rotatable about an axis of rotation and including a rotor wall which surrounds an inner space with a separating chamber within the rotor. The rotor wall is divided into an upper bowl hood, with an end portion, and a lower bowl body which are dismountably attached to each other. The centrifugal separator further includes an inlet for feeding the fluid mixture into the rotor's separating chamber, at least one outlet for discharging out from the rotor component separated from the fluid mixture, and a rotor shaft attached to the rotor and drivably connected to a motor for rotation of the rotor about the axis of rotation. The bowl hood and the bowl body are dismountably attached to each other by an annular flange portion of the bowl hood resting on a stop flange of the bowl body.

Abstract: A seal assembly for providing a seal between a first zone and a second zone includes a rotatable sealing member including a first sealing ring, a stationary sealing member including a second sealing ring and a device for bringing the first and second sealing rings into engagement with each other. The first and second sealing rings are arranged so that a double contact seal having at least one chamber arranged at a radial plane is formed upon engagement between the first and second sealing rings. The seal assembly further includes at least one fluid connection to the chamber. A centrifugal separator includes such a seal assembly.

Abstract: A centrifugal separator for separation of at least two components of a fluid mixture which are of different densities. The centrifugal separator includes a rotor rotatable about an axis of rotation and including a rotor wall which surrounds an inner space with a separating chamber within the rotor. The rotor wall is divided into an upper bowl hood, with an end portion, and a lower bowl body which are dismountably attached to each other. The centrifugal separator further includes an inlet for feeding the fluid mixture into the rotor's separating chamber, at least one outlet for discharging out from the rotor component separated from the fluid mixture, and a rotor shaft attached to the rotor and drivably connected to a motor for rotation of the rotor about the axis of rotation. The bowl hood and the bowl body are dismountably attached to each other by an annular flange portion of the bowl hood resting on a stop flange of the bowl body.

Abstract: The invention concerns a device for attaching a pump impeller (5) onto a conical shaft end (7). A socket (8) provided with a slot is arranged on the shaft end (7), said socket having an outer diameter corresponding with the the shaft bore in the impeller (5). The socket (8) is provided with a threaded bore (9) for an adjusting screw (10) which, by help of a tool, can be turned thereby moving the impeller (5) axially on the shaft.