Constant-pressure sealing-liquid container for mechanical seals

摘要

The pressurised containers which are necessary for supplying mechanical seals with sealing liquid and in which the sealing medium comes into direct contact with the sealing-pressure former have the disadvantage that they mix the sealing liquid and the pressure medium together or that one can diffuse into the other. The invention proposes a constant-pressure sealing-liquid container which is equipped with a flexible metal bellows which is arranged within the sealing-liquid container, can be moved in guided fashion between an upper and a lower stop and which divides the interior of the sealing-liquid container into a pressure-medium and a sealing-liquid space. The temperature-sensitive and corrosion-resistant separation, obtained here, of the two media allows the use of any desired sealing-pressure former.