FIELD: manufacture of fittings. SUBSTANCE: valve includes body, lug, shut-off member with rod, stem connected with lug by means of motion thread and coupling connecting the rod with stem through intermediate member which is made in form of sleeve manufactured from antifriction material. Sleeve embraces head of stem whose face is flat. Inner surface of intermediate member is provided with recesses filled with lubricant. Besides that, face of stem head is provided with axis-symmetrical recess, mating convexity being made on surface of intermediate member. EFFECT: enhanced reliability. 2 cl, 2 dwg
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