Abstract: A valve for a vacuum apparatus includes a first housing element and a second housing element wherein an outer chamber is defined by the first housing element and the second housing element. The first housing element has a first opening and the second housing element has a second opening in fluid communication with the first opening via the outer chamber. An inner chamber is defined by the first housing element and the second housing element wherein a membrane is disposed in the inner chamber. A sealing element is connected to the membrane and is moveable from a first position to a second position wherein in the first position the sealing element closes the first opening in a leak-tight manner and in the second position the sealing element opens the first opening to allow a gaseous medium to flow through the valve.

Abstract: Seal for a vacuum valve comprising a circular base element, wherein the base element has a non-circular cross-section having an outer side extending in an axial direction and an inner side extending radially such that the inner side of the seal can be clampingly fixed in a sealing element of a valve. Further, the present invention relates to a sealing element, such a seal and a valve with such a sealing element.

Abstract: A valve for a vacuum apparatus includes a first housing element and a second housing element wherein an outer chamber is defined by the first housing element and the second housing element. The first housing element has a first opening and the second housing element has a second opening in fluid communication with the first opening via the outer chamber. An inner chamber is defined by the first housing element and the second housing element wherein a membrane is disposed in the inner chamber. A sealing element is connected to the membrane and is moveable from a first position to a second position wherein in the first position the sealing element closes the first opening in a leak-tight manner and in the second position the sealing element opens the first opening to allow a gaseous medium to flow through the valve.

Abstract: A housing for a compressor or expander installation, vacuum pump, generator or similar, whereby this housing is made of metal plates, wherein at least one of the aforementioned metal plates is provided with one or more reinforcing profiles, respectively longitudinal profiles that extend in a certain longitudinal direction and transverse profiles that extend along a transverse direction that forms an angle to the aforementioned longitudinal direction, whereby the various metal plates and longitudinal profiles and/or transverse profiles are joined together solely by means of mechanical fasteners.

Abstract: A housing for a compressor or expander installation, vacuum pump, generator or similar, whereby this housing is made of metal plates, wherein at least one of the aforementioned metal plates is provided with one or more reinforcing profiles, respectively longitudinal profiles that extend in a certain longitudinal direction and transverse profiles that extend along a transverse direction that forms an angle to the aforementioned longitudinal direction, whereby the various metal plates and longitudinal profiles and/or transverse profiles are joined together solely by means of mechanical fasteners.