FIELD: pipeline construction. SUBSTANCE: this is intended for trunk and local pipelines with aim of reducing leakage of gas and oil through fittings. Device has body with internal hollow for accommodation of sealing paste. Also provided is pipe connection with non-return valve. Located in internal hollow with creation of free volume is gas generator intended for delivery of compressed gas into aforesaid volume. Dimensions of volume are determined according to value of working pressure of gas. Also located in hollow is facility for starting of gas generator. EFFECT: higher efficiency. 4 cl, 3 dwg
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