FIELD: oil and gas industry.
SUBSTANCE: device for additional sealing of coupling and conical threaded tube connections includes a heating element, for example an inductor of annular type, a thermocouple, an amplifier of thermoelectromotive force occurring in the thermocouple. Besides, it includes a relay, via the winding of which the current flows, which is determined by thermoelectromotive force of the thermocouple, an energy source for the inductor and a timer. With that, the relay disconnects the inductor electric power supply line at achievement of temperature of brazing alloy full melting in the brazing zone. The timer disconnects the second line after lapse of brazing temperature exposure time.
EFFECT: providing additional reliable sealing of coupling and conical threaded connection at brazing.
1 cl, 4 dwg
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