Importance

Loading Importance Indicators...

Abstract

A vacuum valve comprises a valve body with a valve opening having an axis a closing member which is displaceable between an open position of the valve and a closed position of the valve in a closing direction extending at an angle to the axis of the valve opening, a sealing surface which surrounds the valve opening and which has at least two main portions which are arranged so as to be offset relative to one another in the direction of the axis of the valve opening, are connected with one another by connection portions, and whose imaginary generating lines have at least a portion or a tangent extending substantially vertical to the closing direction, a circumferentially closed seal which is arranged at the closing member and which has two main portions corresponding to the main portions of the sealing surface and connection portions which connect the two main portions, which seal can be placed against the sealing surface by of a displacement of the closing member in the closed position of the valve, wherein at least one of the main portions of the seal has a recess at least along a portion of its length, considered in cross section, on its side facing the sealing surface, and is arranged in a recess of the closing member whose side flanks support the seal laterally, and the corresponding portion of the sealing surface is arranged on a protuberance of the valve body or is provided with a protuberance, wherein the protuberance can be inserted in the recess of the seal when the valve is closed.

Loading the Abstract Image...

First Claim