Is there any way to remove residual product left in pipes after a batch operation?

Is there any way to remove residual product left in pipes after a batch operation?
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Answer :

OEG Company in Osaka, Japan commercialized a device called Pushkun that runs through pipes and  “pushes” out left over product. The system is particularly valuable in batch operations where product  recovery is chief concern. The manufacturer claims that at one installation, the system paid for itself in  four months through product recovery. System costs depend on the scale of the system, but are  typically around $10,000 US (1998).
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