| 摘要 |
FIELD: pumping-over biological liquid. SUBSTANCE: flexible tube is made interference fit on rollers. Flexible tube clamping facilities are made as bushes 5, 6. Cavities of bushes are similar in form. They embrace shaped parts of nipples 7, 8 with flexible tube ends put on them. Flexible tube is mounted for constriction of its flow section in zone of contact with at least one roller. EFFECT: simplified construction, higher reliability. 1 cl, 1 dwgF
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