DEVICE TO TIGHTLY JOINT TWO NOSE-PIECES Russian patent published in 2009 - IPC F16L37/98 

FIELD: machine building.

SUBSTANCE: invention relates to the device designed to tightly joint two nose-pieces of pipeline system. The proposed device has an external member receiving nose-pieces, an internal member inserted into the former through its first inlet part and a sealing enveloped by the aforesaid external member. The internal member is fitted in the external member to axially move therein and to be extracted therefrom through the first inlet part. The aforesaid sealing is fixed on the external member second inlet part with the help of clamping device arranged on the internal member and detachable from it. A counter-support is arranged in the external member, between its first and second inlet parts. The aforesaid sealing rests upon the said counter-support when the internal member moves axially from the external member second inlet part towards its first inlet part. The internal member has a contact surface whereon rests the nose-piece on inserting it into the external part on its second inlet part side to move the internal member towards the external member first inlet part and out of the latter.

EFFECT: higher reliability of joint.

11 cl, 3 dwg