FIELD: sealing of machines handling aggressive media. SUBSTANCE: device includes the following components located in succession after space to be sealed up: slotted seal, unloading cavity with drain hole and profiled contactless seal fitted with bush secured on shaft. Baffle disk is located at end of second unloading chamber provided with drain hole and is mounted on shaft. Sealing ring made from stiff material is pressed between baffle disk and end of bush. EFFECT: enhanced reliability. 2 cl, 1 dwg
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