Safety lock is placed on edge of exit tube, inside oil separator, and it´s purpose is to prevent leaking of separated light oils in natural recipient. It is made of float who is moving together with separation line between water and light fluids. When level of light fluids is increased, float is falling and getting near to pipe opening.In moment when level of light fluid is increased so much that it threats to get out in recipient, float get in to pipe opening and prevent its leaking from separator.
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