Device for continuously checking leaktightness of a flexible double envelope

摘要

The invention relates to a device making it possible continuously to check the leaktightness of a flexible double envelope. It consists: - of a valve (No. 1) making it possible to fill and maintain pressure of a neutral gas, - of a manometer (No. 2) making it possible to check variations in pressure of this gas, protected by an adjustable pressure limiter (No. 3) against overpressures which may damage this manometer. <IMAGE>