Vat Holding Ag

Christof Bachmann

Florian Ehrne

Friedrich Geiser

Martin Netzer

Daniel Seitz

Hanspeter Frehner

Matthias Wozasek

A seal support ring () for a valve (), particularly a vacuum valve, which has a throughflow opening () and a basic body (), which annularly surrounds the throughflow opening, and a fastener arrangement () for fastening the seal support ring to a valve housing () of the valve. The basic body has a first side () on which the seal support ring, in a mounted state on the valve housing, lies against the valve housing, and the seal support ring has a seal ring () made from an elastomer which, in its position on the basic body, surrounds the throughflow opening. A casing wall () is arranged on the basic body and at least partially surrounds the throughflow opening and, on a second side () of the basic body () opposite the first side, protrudes from the basic body and has a larger inside diameter than the seal ring.

Seal support ring for a valve

A vacuum valve has a valve opening () that is surrounded by a valve seat (), a valve plate () that releases the valve opening () in an open state and rests against the valve seat () in a closed state, and a carrier unit () that supports the valve plate () and moves between a first position, in which the valve opening () is in the open state, and a second position. The valve plate () moves between a retracted position and an extended position. In the second position of the carrier unit () and in the extended position of the valve plate (), the valve opening () is in the closed state. In the retracted position, the valve plate () is supported against the carrier unit ().

Vacuum valve

A valve with an opening surrounded by a seat, and a closure member, which, in a closed position, presses onto the seat and closes the opening and, in an intermediate position, is raised from the seat and overlaps with the opening and, in a maximum opening position, at least partially releases the opening. The valve has a first valve drive for moving the closure member between the maximum opening position and the intermediate position along a first movement track, and a second valve drive for moving the closure member between the intermediate position and the closed position along a second movement track which is at an angle to the first movement track. The valve has at least one transmission part which is provided for reversible deformation by the second valve drive, and the first valve drive acts on the closure member with the interposition of the transmission part.

Valve

A vacuum valve comprises a valve housing with a valve opening having a longitudinal axis and a valve seat, a valve plate which is displaceable in a straight line in a displacement direction between an open position in which it releases the valve opening and a closed position in which its contacts the valve seat of the valve housing and closes and seals the valve opening, this valve plate being arranged on at least one valve rod which is displaceable axial to the displacement of the valve plate, a flexible sealing ring which is arranged at a front side of the valve plate or at the valve seat of the valve housing, a sealing surface which is arranged at the valve seat of the valve housing or at the front side of the valve plate and which is contacted by the sealing ring in the closed position of the valve plate, wherein the sealing surface and the sealing ring are arranged in parallel planes which are inclined relative to the displacement direction of the valve plate around an axis extending at right angles to the displacement direction and at right angles to the longitudinal axis of the valve opening, and at least one sliding-spacing part which is arranged at the front side of the valve plate next to the sealing ring or sealing surface or at the valve seat next to the sealing surface or sealing ring and which forms a sliding bearing for the valve plate relative to the valve housing when closing the valve along a final section of the displacement path of the valve plate until the closed position of the valve plate is reached and which keeps the valve plate at a distance from the valve housing in the closed position of the valve plate and accordingly limits the pressing of the sealing ring.

Growing community of inventors

Sennwald, Switzerland

Christof Bachmann