Method for checking the tightness of a filling-sealing unit for container and filling-sealing machine

摘要

A method is described for leak control of a container fill-seal unit. Thus, a pressure chamber formed on the fill-seal unit is sealed about a capper movable therein with a first seal and to a pressure inlet movable therein with a second seal. According to the invention seals a trained to seal the pressure chamber around a container mouth third seal with an essay from the outside, generates an overpressure and / or negative pressure in the pressure chamber, closes the pressure line used for this purpose and then measures a pressure curve in the pressure chamber. As a result, a leak at the first and / or second seal can be specifically recognized and distinguished from a leak of the third seal.