Sartorius Stedim Biotech Sartocon Slice Installationsanleitung Seite 10

10 Installation
The overpressure on the filtrate side is defined as:
Overpressure on the filtrate side (P
than the retentate pressure.
P > P
perm ret
P = P - P
back perm ret
This should especially be taken into consideration if hydrostatic conditions
(e.g., tank height and pipe cross-sections) are influencing the backflow.
Ensure that these values are not exceeded.
t t
This must be distinguished with respect to the transmembrane pressure (TMP)
TMP = [(P + P ) : 2] - P
feed ret perm
and the differential pressure
P = P - P
diff feed ret
The Following Must Be Noted:
Note crossflow conditions during filtering. When filtering under static conditions
(dead-end filtration), the filtration performance of the cassettes is greatly reduced
[Æ Chapter "5. Filtration", page 13].
This Is Part of a Complete Crossflow System (Drawing)
) occurs when the permeate pressure is higher
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