FIELD: machine building.
SUBSTANCE: invention relates to aseptic storage and batching of substances. Set is encased to interact with pump. Set comprises elastic pack composed by sealed variable-volume container for aseptic store of substance portion, one-way valve for communication with container to transfer fluid there between including valve seat and cover arranged around said seat. Valve cover defines the interference fit with valve seat. Valve seat and cover make a normally-closed bore there between. Valve cover can displace between normally closed position whereat valve cover engages with valve seat and open position whereat at least one valve cover segment is spaced from valve seat to communicate valve bore with flow bored to allow fluid passage there between and fluid flow from container via valve bore.
EFFECT: normally-closed and normally-open one-way valve keeps the substance in aseptic stage.
32 cl, 23 dwg
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