Vacuum valve with manual drive ???-63 with nominal bore 63 mm is designed for shut-off of vacuum systems in the range of operating pressures from 1?10 -5 to 1,07?10 5 Pa. They are manufactured in climatic version UHL4 and O4 according to GOST 15150-69.
Operating medium - air and non-aggressive gases. Vacuum valve with manual drive KVR-63 is not intended for use in fire-explosive production.
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