Vacuum duct for guiding and sealing of component i.e. heating lamp, has pressure plates formed at front sides of sealing disk, and fitted screws running through passage openings in plates and disk, where screws are provided with nuts

摘要

The duct (1) has a vacuum seal arranged around outer contour of a component i.e. heating lamp. The vacuum seal has a sealing disk (51) with a passage opening (53) for guiding the component, where the sealing disk is made from elastomer. Pressure plates (61, 62) are formed at front sides of the sealing disk, and fitted screws (71) run through passage openings in the plates and the sealing disk, where the screws are provided with nuts (72). The sealing disk is inserted into a supporting ring under formation of a sealing intermediate area. A vent hole is formed in one of the plates.