MATRIX TUBE OF VERMICULAR PUMP

摘要

A pump header for use in a peristaltic pump. The pump header (10) includes a flexible outer tube (26), a collapsible-expandable inner tube (32), a pressure control valve member (34) and a one-way-flow valve member (36). The inner tube (32) is disposed within a passageway of the outer tube (6). The pressure control valve member (34) and the one-way-flow valve member (36) are responsive to positively-pressured liquid on an inlet (44) to the inner tube and allow the liquid to enter a passageway of the inner tube (32) from which the fluid can be pumped by the cation of the peristaltic pump. The positively pressured liquid can only pass from the one-way-flow valve member (36).