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3.4. Flexel ® <strong>3D</strong> <strong>Bag</strong> Emptying<br />
a) Warning: Before starting bag emptying,<br />
remove the stainless steel hanger from its<br />
limit stopper (See Fig 18).<br />
b) Take the bottom port tube and position it<br />
vertically. Open the connector protective<br />
outer-wrap using the reversible cable tie<br />
on the dispensing line and carry out the<br />
connection according to the standard<br />
procedures that apply on the site<br />
(See Fig. C).<br />
c) Unclamp the drain line and start the<br />
draining operation (See Fig. A) - Gravity<br />
can be used, but for faster draining <strong>Sartorius</strong><br />
Stedim Biotech recommends the<br />
use of a peristaltic pump. (See Fig. 19)<br />
d) The Flexel ® <strong>3D</strong> <strong>Bag</strong> closes down on itself<br />
and collapses automatically. To obtain<br />
100% fluid recovery, lift the collapsed<br />
bag.<br />
e) When dispensing is complete, clamp the<br />
line (See Fig. B) and disconnect the main<br />
drain line from the drain tube of the<br />
Flexel ® <strong>3D</strong> <strong>Bag</strong>.<br />
f) Remove each stainless steel hook of the<br />
cable from holes located on the Flexel ®<br />
<strong>3D</strong> <strong>Bag</strong> top flaps.<br />
g) Open the three bottom gates to free the<br />
bottom ports by removing the retaining<br />
clip from the retaining clip fastening<br />
point; then grasp the retaining clip fastening<br />
point and swing the bottom gate<br />
open.<br />
h) Remove the collapsed bag from the<br />
Palletank ® (See Fig. 20).<br />
4. Trouble Shooting Guide 5. Precautions of Use<br />
The bag will not fill<br />
> Check that the clamp is open and that<br />
the tube is not pinched.<br />
When filling through the bottom, the<br />
bag comes out of the bottom gate.<br />
> The edge of the jaw is not closed inside<br />
the groove of the bottom port. Position<br />
it correctly in the groove.<br />
The bag does not open out correctly<br />
during filling:<br />
> The port system is incorrectly aligned.<br />
The bag is incorrectly positioned in<br />
the Palletank ®. Lift the bag out of the<br />
Palletank ®, turn it round and go through<br />
Flexel ® <strong>3D</strong> <strong>Bag</strong> installation procedure<br />
once again.<br />
> The bottom of the bag is incorrectly<br />
positioned.<br />
Place the corners of the bag in the corners<br />
of the Palletank ® (make sure that<br />
only 1-2% of nominal volume is filled<br />
before adjusting, otherwise bag failure<br />
may occur)<br />
Many folds appear in the bag during<br />
filling<br />
> The bag is too big, use the bag suited to<br />
the size of the Palletank ®<br />
The bag does not come up against the<br />
walls<br />
> The bag is too small, use the bag suited<br />
to the size of the Palletank ®<br />
The bag will not drain<br />
> Check that the clamp is open and that the<br />
tube is not pinched.<br />
a) The <strong>Sartorius</strong> Stedim Biotech Flexel ® <strong>3D</strong><br />
<strong>Bag</strong> must imperatively be used with the<br />
<strong>Sartorius</strong> Stedim Biotech Palletank ®.<br />
b) The Palletank ® must be clean and dry<br />
before inserting the Flexel ® <strong>3D</strong> <strong>Bag</strong>.<br />
Traces of cleaning agents left on the<br />
Palletank ® can potentially damage the<br />
Flexel ® <strong>3D</strong> <strong>Bag</strong>.<br />
c) It is under the user’s responsibility to<br />
verify the compatibility of the Flexel ® <strong>3D</strong><br />
<strong>Bag</strong> materials with the solutions used in<br />
your process. <strong>Sartorius</strong> Stedim Biotech<br />
can provide guidelines for chemical compatibility,<br />
bio-compatibility and extractables.<br />
d) Avoid leaving sharp objects (scissors, cutters,<br />
scalpels, etc.) in the vicinity of the<br />
Flexel ® <strong>3D</strong> <strong>Bag</strong>.<br />
e) The Flexel ® <strong>3D</strong> <strong>Bag</strong> is not to be handled<br />
by its connections (i.e. tubing).<br />
f) Avoid folding the Flexel ® <strong>3D</strong> <strong>Bag</strong> other<br />
than the original folds. Do not fold the<br />
bag in the direction of the “gussets”.<br />
(Gussets Heat-sealed seams)<br />
g) When positioning the Flexel ® <strong>3D</strong> <strong>Bag</strong> in<br />
the Palletank ® and when adjusting it after<br />
the initial fill, handle the bag gently and<br />
do not force fit or pull hard.<br />
h) The Flexel ® <strong>3D</strong> <strong>Bag</strong> is for single-use and<br />
should not be re-used.<br />
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