FIELD: power mechanical engineering.
SUBSTANCE: valve comprises seat and arrester of lifting with valves for flowing gas. At least one valving member is interposed between the seat and arrester. At least one additional valving member is mounted for permitting movement with respect to the seat and valving member. The additional valving members is provided with at least one through opening. The valving member has at least one through groove. The through opening in the additional member is shifted to the through groove in the valving member so that the flowing section of the opening and the groove are not coincident.
EFFECT: prolonged service life and enhanced efficiency.
2 dwg
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