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3.4. Emptying Flexel

3D Bags 100L | 200L

and 500L

Sartorius Stedim Biotech recommends dis-
pensing through the bottom.

a) Take the bottom port tube and position it

vertically. Open the connector protective
outer-wrap using the reversible cable tie
on the dispensing line and connect
according to the standard procedures
that apply on the site (see Fig. C).

b) Open the clamp (see Fig. A). Drain the

bag
- gravity can be used, but for faster

draining Sartorius Stedim Biotech rec-
ommends the use of a peristaltic pump
(see Fig. 20).

c) The bag collapses as it is drained. The

sloped bottom of the Palletank

and the

position of the drain hole provide nearly
100% fluid recovery. This efficiency can
be improved by lifting the bag at the end
of the operation (see Fig. 21).

d) Once dispensing has been completed,

clamp the line (see Fig. B) and disconnect
the main drain line from the dispensing
tube of the Flexel

3D bag.

e) Open the bottom gate by removing the

retaining clip from the retaining clip fas-
tening point; then grasp the retaining
clip fastening point and swing the bot-
tom gate open (see Fig. 7).

f) Lift the collapsed bag and remove it from

the Palletank

(see Fig 21).

g) Discard the Flexel

3D bag in accordance

with the procedures used on your site.

4. Troubleshooting Guide

5. Precautions for use

The bag will not fill.

> Check the clamp is open and the tube is

not pinched.

When filling through the bottom, the
bag comes out of the bottom gate.

> The edge of the jaw is not closed inside

the groove of the bottom port. Position it
correctly in the groove.

The bag does not open out correctly
during filling:

The port system is incorrectly aligned.

> Open the bottom gate, turn the bag to

bring the port system opposite and close
the bottom gate.

The bottom of the bag is incorrectly
positioned.

> Place the corners of the bag in the cor-

ners of the Palletank

(make sure that

only 10% of nominal capacity is filled
before adjusting; otherwise bag failure
may occur).

Many folds appear in the bag during
filling.

> The bag is too big; use the bag suitable

for the size of the Palletank

The bag does not come up against the
walls.

> The bag is too small; use the bag suitable

for the size of the Palletank

The bag will not drain.

> Check that the clamp is open and that the

tube is not pinched.

> To ensure trouble-free operation, the

Sartorius Stedim Biotech Flexel

3D bag

must be used with the Sartorius Stedim
Biotech Palletank

> The Palletank

must be clean and dry

before inserting the Flexel

3D bag.

Traces of cleaning agents left on the
Palletank

can potentially damage the

Flexel

3D bag.

> It is the user’s responsibility to verify the

compatibility of the Flexel

3D bag mate-

rials with the solutions used in his/her
process. Sartorius Stedim Biotech can
provide guidelines for chemical compati-
bility, biocompatibility and extractables.

> Avoid leaving sharp objects (scissors, cut-

ters, scalpels, etc.) in the vicinity of the
Flexel

3D bag.

> The Flexel

3D Bag is not to be handled

by its connections (i.e. tubing).

> Avoid folding the Flexel

3D bag other

than using the original folds provided. Do
not fold the bag in the direction of the
“gussets” (gusset = heat sealed seams).

> When positioning the Flexel

3D Bag in

the Palletank