FIELD: machine building.
SUBSTANCE: device contains bellows made out of alloy with shape memory effect; said bellows envelopes ends of connected tubes; device also contains cooler-heater made in form of two coil pipes assembled outside bellows between its goffers and connected to source of power carrier. The bellows with coil pipes is enclosed into a pressure tight sectional cylinder case made of two halves; a thermo-protecting shell is secured on an interior surface of the case; flange portions with rubber padding are installed on ends of the case. The coil pipes are secured on the case; elastic sealing rings of double-concave contact surface are arranged on the interior surfaces of bellows goffers.
EFFECT: invention facilitates connecting tubes of any diameter overland as well as under water in fast, reliable, pressure tight and efficient way avoiding additional mechanical treatment of ends of connected tubes.
7 cl, 9 dwg
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