Abstract: The invention relates to a mechanical seal assembly comprising a mechanical seal (2) with a rotating slide ring (3) and a stationary slide ring (4) defining a seal gap (5) therebetween, a pretensioning device (6) which biases the stationary slide ring (4) in the axial direction (X-X) of the slide ring seal arrangement, a support ring (7) which is arranged on the stationary slide ring (4), the support ring (7) being axially movable relative to the stationary slide ring (4) the pretensioning device (6) being arranged between the support ring (7) and the stationary slide ring, a fixing device (8) which is arranged for axially movable fixing the support ring (7) to a stationary component, a stop (9) which limits a distance (W1) by which the axially movable support ring (7) can be moved, and a secondary seal (10) which is arranged to seal between the support ring (7) and the stationary component.

Abstract: The invention relates to a mechanical seal arrangement comprising a mechanical seal (10) including a rotating slide ring (2) and a stationary slide ring (3), defining a seal gap (4) therebetween, a one-piece, ring-shaped slide ring carrier (5), which holds the stationary slide ring (3), a one-piece, ring-shaped cover (6), which is arranged on the slide ring carrier (5), a one-piece, ring-shaped housing (7), which is detachably fixed to the cover (6) using fixing device (8), and a one-piece first retaining ring (9), which is detachably arranged on the slide ring carrier (5), wherein the stationary slide ring (3) is clamped between the first retaining ring (9) and the cover (6), and wherein the slide ring carrier (5) is connected to the slide ring carrier (5) by means of at least one elastic biasing member (19) such that the slide ring carrier (5) can perform movements in the axial direction of the mechanical seal arrangement together with the stationary slide ring (3).

Abstract: The invention relates to a mechanical seal assembly comprising a mechanical seal (2) with a rotating slide ring (3) and a stationary slide ring (4) defining a seal gap (5) therebetween, a pretensioning device (6) which biases the stationary slide ring (4) in the axial direction (X-X) of the slide ring seal arrangement, a support ring (7) which is arranged on the stationary slide ring (4), the support ring (7) being axially movable relative to the stationary slide ring (4) the pretensioning device (6) being arranged between the support ring (7) and the stationary slide ring, a fixing device (8) which is arranged for axially movable fixing the support ring (7) to a stationary component, a stop (9) which limits a distance (W1) by which the axially movable support ring (7) can be moved, and a secondary seal (10) which is arranged to seal between the support ring (7) and the stationary component.

Abstract: The invention relates to a mechanical seal arrangement comprising a mechanical seal (10) including a rotating slide ring (2) and a stationary slide ring (3), defining a seal gap (4) therebetween, a one-piece, ring-shaped slide ring carrier (5), which holds the stationary slide ring (3), a one-piece, ring-shaped cover (6), which is arranged on the slide ring carrier (5), a one-piece, ring-shaped housing (7), which is detachably fixed to the cover (6) using fixing device (8), and a one-piece first retaining ring (9), which is detachably arranged on the slide ring carrier (5), wherein the stationary slide ring (3) is clamped between the first retaining ring (9) and the cover (6), and wherein the slide ring carrier (5) is connected to the slide ring carrier (5) by means of at least one elastic biasing member (19) such that the slide ring carrier (5) can perform movements in the axial direction of the mechanical seal arrangement together with the stationary slide ring (3).

Abstract: A mechanical seal arrangement includes a first mechanical seal with a rotating slide ring and a stationary slide ring, which define a sealing gap in between them. The mechanical seal arrangement includes a first sealing space that is filled with a sealing liquid. The first mechanical seal seals off the sealing space against a surrounding area, a first piston arrangement with a piston element and flexible wall areas that define a first piston interior space, wherein the first piston interior space is in fluid connection with the first sealing space. A piston outer surface of the piston element is in fluid connection with the surrounding area, and a first pre-stressing appliance that exerts a first preload force (F1) on the piston element of the first piston arrangement.

Abstract: The invention relates to a mechanical seal arrangement, comprising: a first mechanical seal (10) with a rotating slide ring (11) and a stationary slide ring (12), which define a sealing gap (13) in between them, a first sealing space (14) that is filled with a sealing liquid, wherein the first mechanical seal (10) seals off the sealing space (14) against a surrounding area (6), a first piston arrangement (15) with a piston element (16) and flexible wall areas that define a first piston interior space (160), wherein the first piston interior space (160) is in fluid connection with the first sealing space (14), wherein a piston outer surface of the piston element (16) is in fluid connection with the surrounding area (6), and a first pre-stressing appliance (19) that exerts a first preload force (F1) on the piston element (16) of the first piston arrangement (15).

Abstract: The invention relates to a mechanical seal arrangement comprising a rotating slide ring (2) and a stationary slide ring (3) which define a sealing gap (4) between them, a holding ring (5) for holding the stationary slide ring (3), and a housing (6), a clamp connection (7) being provided between the housing (6) and the holding ring (5) by way of at least one clamp component (8).

Abstract: A seal ring for a mechanical seal, comprising a base body, a first layer applied to a first face side of a base body, and a second layer applied to a second face side of the base body. At least one of the layers is configured as a slide surface of the seal ring.

Abstract: The invention relates to a mechanical seal arrangement comprising a rotating slide ring (2) and a stationary slide ring (3) which define a sealing gap (4) between them, a holding ring (5) for holding the stationary slide ring (3), and a housing (6), a clamp connection (7) being provided between the housing (6) and the holding ring (5) by way of at least one clamp component (8).

Abstract: The invention refers to a mechanical seal arrangement, comprising: a rotatable seal ring (2), a stationary seal ring (3) and a secondary seal device (5), said secondary seal device (5) being made in one piece and comprising a secondary seal (51) and a ring element (52) of different materials, and the ring element (52) being arranged on the secondary seal (51) on a side directed to the stationary seal ring (3).

Abstract: The present invention refers to an apparatus for rotationally fixing a seal ring (4) of a mechanical seal assembly retained at a mounting component (1) to be axially movable, comprising a force transmitting ring (10) retained at the mounting component to be axially movable and a rotation prevention device comprising at least one first engaging member (17) configured to engage with the mounting component and the force transmitting ring in a form-fit manner and at least one second engaging member (18) configured to engage with the force transmitting ring and the seal ring in a form-fit manner, the first engaging member being arranged circumferentially offset with respect to the second engaging member, characterized in that the engaging members (17, 18) protrude axially from the force transmitting ring (10) or the seal ring (4) toward the respectively other component (seal ring or force transmitting ring) and are configured to be received in axial recesses (19, 20) provided in the respectively other component wi

Abstract: The present invention refers to an apparatus for rotationally fixing a seal ring (4) of a mechanical seal assembly retained at a mounting component (1) to be axially movable, comprising a force transmitting ring (10) retained at the mounting component to be axially movable and a rotation prevention device comprising at least one first engaging member (17) configured to engage with the mounting component and the force transmitting ring in a form-fit manner and at least one second engaging member (18) configured to engage with the force transmitting ring and the seal ring in a form-fit manner, the first engaging member being arranged circumferentially offset with respect to the second engaging member, characterized in that the engaging members (17, 18) protrude axially from the force transmitting ring (10) or the seal ring (4) toward the respectively other component (seal ring or force transmitting ring) and are configured to be received in axial recesses (19, 20) provided in the respectively other component wi

Abstract: The invention refers to a mechanical seal assembly comprising at least one pair of co-operating seal rings (4, 5), one of which is provided for common rotation with a rotating component and the other of which is provided rotationally fixed at a stationary component, one of the seal rings being axially movable and axially biased with a biasing force against the respectively other seal ring, said biasing force being transmittable through a force transmitting ring (10) to the respective seal ring, in order to bias facing sliding surfaces (7, 8) of the seal rings, between which a sealing gap is formed during operation, in a mutual sealing engagement, and a secondary sealing assembly provided at the force transmitting ring (10) for sealing the axially movable seal ring with respect to at least one circumferential guiding surface (16, 18) of a guiding component (1) guiding the movement of the seal ring and the force transmitting ring, wherein the secondary sealing assembly comprises at least one annular sealing mem

Abstract: The present invention discloses a dual seal assembly, in particular for sealing a gas compressor, comprising a first mechanical seal assembly (30) including a pair of co-operating seal rings (31, 32), one of which is provided for common rotation with a rotating component (60) and the other of which is provided rotationally fixed at a stationary component (1), a second mechanical seal assembly (40) including a pair of co-operating seal rings (4, 5), one of which is provided for common rotation with a rotating component (60) and the other of which is provided rotationally fixed at a stationary component (1), one of the seal rings being axially movable and axially biased with a biasing force against the respectively other seal ring, said biasing force being transmittable through a force transmitting ring (10) to the respective seal ring, in order to bias facing sliding surfaces (7, 8) of the seal rings, between which a sealing gap is formed during operation, in a mutual sealing engagement, and a secondary sealin

Abstract: A secondary sealing element comprises a base body (12) made of a synthetic material and comprising a base portion (13) and a seal portion (14) which each comprise coaxially aligned, axially adjacent through bores (17, 31) for the passage of a component, and an annular disc element (25) accommodated in the base portion and comprising a through bore (30) coaxially aligned with the through bores in the base and seal portions and being made of a material which differs from that of the base body. In the unloaded state, the through bore (30) of the annular disc element (25) has a radial dimension d which is greater than that D2 of the through bore (31) in the seal portion (14) and smaller than that D1 in the base portion (13) of the base body (12). The annular disc element consists of a carbon material. An important field of application for the secondary sealing element is that of mechanical face seals for sealing relatively moveable components.