DEVICE FOR MAINTAINING INTERNAL PRESSURE OF LIQUID STORAGE TANK AND TANK CONTAINING IT

摘要

PURPOSE: A device for maintaining the internal pressure of a liquid storage tank and a tank containing the device are provided to constantly maintain the internal pressure of a tank, irrelevantly to the temperature change around the tank. CONSTITUTION: The device for maintaining the internal pressure of a liquid storage tank includes; a rubber bladder(1) of a vessel shape; and a coupling flange(2), arranged on the edge of the rubber bladder(1); wherein a housing(3) for covering the edge of the rubber bladder(1) is additionally installed.