Abstract: A vacuum valve with a valve housing with a valve opening, a closing element, and at least one peripherally closed seal on the closing element with first and second seal main sections and first and second seal connecting sections allocated to corresponding seat main sections and connecting sections. The seal extends in a groove defined by two side walls and a base wall. The first seal main section is arranged on a front end face of the closing element and has a middle part where the seal extends in a straight line. The seal is clamped by a clamping bar at least across part of the middle part, with the clamping bar fixed on the closing element and forming one of the side walls. Through at least one second sub-region of the longitudinal extent of the seal, the two side walls and base wall are formed by the closing element.

Abstract: For a vacuum valve comprising a valve housing (1) with a valve opening, a valve seat surrounding the valve opening, a closing element (9), and at least one peripherally closed seal (10, 11) that is arranged on the closing element (9) and has first and second seal main sections (14, 15) and first and second seal connecting sections (16, 17) allocated to first and second seat main sections arranged offset relative to each other in a direction of the axis (3) of the valve opening (2) and first and second seat connecting sections, is provided, with the seal extending in a groove that is defined, when viewed in cross section, by two side walls and a base wall. The first seal main section (14) is arranged on a front end face (18) of the closing element (9) with respect to the closing direction (8) of the closing element and has a middle part (19) in which the seal (10, 11) extends in a straight line.