A valve, having a valve housing which has a fluid inlet chamber and a fluid outlet chamber, having a valve seat which is arranged between the fluid inlet chamber and the fluid outlet chamber, and having a closure body which is movable back and forth between a release position and a blocking position. The closure body abuts against the valve seat in a fluid-tight manner in the blocking position, and wherein the fluid inlet chamber and the fluid outlet chamber are connected to one another in a fluid-conducting manner in the release position. The valve seat and the closure body each have a sealing surface, which are opposite one another in the blocking state, and an elastically deformable sealing element which is arranged between the sealing surfaces in the blocking state and which completely stretches over one of the sealing surfaces.

The present disclosure relates to a flexible valve, wherein the valve can be folded and sealed for containing liquids within flexible packaging in combination with a flexible to semi-rigid container. The valve can be in an open unfolded configuration, or a closed folded configuration. Typical embodiments of the disclosure include a protruding element or a bubble which is formed between a base layer and a bubble layer. A channel for the product to be dispensed from a storage volume is formed between the bubble layer and a channel layer.

The invention relates to a valve (100) having a valve housing (3) which has a fluid inlet chamber (21) and a fluid outlet chamber (23), having a valve seat (12) which is arranged between the fluid inlet chamber (21) and the fluid outlet chamber (23), and having a closure body (50) which is movable back and forth between a release position and a blocking position, wherein the closure body (50) abuts against the valve seat (12) in a fluid-tight manner in the blocking position, and wherein the fluid inlet chamber (21) and the fluid outlet chamber (23) are connected to one another in a fluid-conducting manner in the release position.

According to the invention, it is proposed that the valve seat (12) and the closure body (50) each have a sealing surface (13a,b), which are opposite one another in the blocking state, and an elastically deformable sealing element (4) which is arranged between the sealing surfaces (13a,b) in the blocking state and which completely stretches over one of the sealing surfaces.

A sealing ring is usable in a valve, and has an inner diameter defining a shape of the sealing ring. The shape may be configured to match the shape of a flow bore of the valve. A first side of the sealing ring is configured to abut a body wall of the valve. A profiled face is on a second side opposite the first side, and the profiled face is configured to match a closure member. An outer radial groove cutout is on an outer side between the first side and the second side, and an inner radial groove cutout is on an inner side between the first side and the second side. The outer radial groove cutout and the inner radial groove cutout are configured to elastically deform.

Closure device or lock device for a vacuum chamber comprising a counter plate, which can be arranged on a vacuum chamber and surrounds an opening of the vacuum chamber, a frame, which is supported in such a way that the frame can be moved in relation to the counter plate and on which a closure cover is movably arranged, wherein the closure cover closes the opening in sealing manner in a closed position against the counter plate, at least one magnet device for producing a closing force acting between the counter plate and the closure cover, which is in engagement with the counter plate and with the closure cover.

In one embodiment, disclosed is a sealing ring usable in a valve, having an inner diameter defining a shape of the sealing ring. The shape may be configured to match the shape of a flow bore of the valve. Certain embodiments may also include a first side configured to abut a body wall of the valve, a profiled face on a second side opposite the first side, wherein the profiled face is configured to match a closure member, an outer radial groove cutout on an outer side between the first side and the second side, and an inner radial groove cutout on an inner side between the first side and the second side, wherein the outer radial groove cutout and the inner radial groove cutout are configured to elastically deform.