Pellicon
®
3 Cassettes Installation and User Guide
12
importance is stable process flux and no carry over.
If the NWP decreases significantly from run-to-run, cleaning procedures may be
inadequate. Alternative cleaning agents and procedures should be investigated.
Contact a Technical Service Representative for assistance.
NWP Temperature Correction Factor (F)*
T (°F)
T (°C)
F
T (°F)
T (°C)
F
T (°F)
T (°C)
F
125.6
52
0.595
96.8
36
0.793
68.0
20
1.125
123.8
51
0.605
95.0
35
0.808
66.2
19
1.152
122.0
50
0.615
93.2
34
0.825
64.4
18
1.181
120.2
49
0.625
91.4
33
0.842
62.6
17
1.212
118.4
48
0.636
89.6
32
0.859
60.8
16
1.243
116.6
47
0.647
87.8
31
0.877
59.0
15
1.276
114.8
46
0.658
86.0
30
0.896
57.2
14
1.310
113.0
45
0.670
84.2
29
0.915
55.4
13
1.346
111.2
44
0.682
82.4
28
0.935
53.6
12
1.383
109.4
43
0.694
80.6
27
0.956
51.8
11
1.422
107.6
42
0.707
78.8
26
0.978
50.0
10
1.463
105.8
41
0.720
77.0
25
1.000
48.2
9
1.506
104.0
40
0.734
75.2
24
1.023
46.4
8
1.551
102.2
39
0.748
73.4
23
1.047
44.6
7
1.598
100.4
38
0.762
71.6
22
1.072
42.8
6
1.648
98.6
37
0.777
69.8
21
1.098
41.0
5
1.699
*Based on Water Fluidity Relative to 25 ºC (77 ºF) Fluidity Value F= (µ
T ºC
/µ
25 ºC
) or
(µ
T ºF
/µ
77 ºF
)
Storage
Storage solution must be introduced into
the system through the cassettes and
the system piping to put the system in a
bacteriostatic state in between process
runs. This procedure requires a minimum
of 10 L/m
2
of solution. Refer to
diagram.
1. Close the tank drain valves (V1 and V2).
2. Fill the tank with the storage
solution.
3. Fully open the retentate valve
(V4) (and permeate valve (V5)
if present) and direct both the
retentate and filtrate to the tank.
4. Open the tank drain valve (V1).
5. Turn on the feed pump and pump
water into the feed port of the
Pellicon
®
holder. The recommended
feed flow rate for Pellicon
®
3
cassettes is 4 to 6 L/min/m².
6. Once the pump has slowly ramped
up to the set point, partially close
the retentate valve (V4) to achieve
7. Recirculate the storage solution for
5 to 10 minutes.