FIELD: valving for high pressure pipe lines. SUBSTANCE: gate has pipe line with a seat mounted within a casing and rotating gate provided with a drive and secured to the pipe line. A charge of explosive with an initiation system is provided on the outer side of the pipe line in zone of the seat. Face side of the seat is inclined to a plane which is perpendicular to axis of the pipe line. The angle of the inclination is defined by a relationship available in the invention description. EFFECT: enhanced reliability. 2 dwg
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