PIPELINE JOINTING DEVICE Russian patent published in 2001 - IPC

FIELD: cosmic engineering; mechanical engineering. SUBSTANCE: device has changeable and stationary bodies coupled to each other by means of fixing element. Bodies accommodate check valves and mechanism of opening and closing of pipeline main line. Said mechanism is represented by bushing with seals. Bushing with seals is positioned between valves of stationary and changeable bodies. Two auxiliary bushings coupled to each other for axial displacement are arranged inside bushing by means of different-direction threaded connection. Bushing facing the stationary body valve is provided with holes which receive guide pins secured on end of stationary body valve part. Stationary body has opening for element of rotation of bushing with seals, and bushing is positioned between removable rests. EFFECT: simplified dismantling of joint. 3 dwg