Dimple Jacket Description; Insulation System Description; Technical Specifications - Sartorius stedim Flexel Palletank 50L Manual De Usuario

4.2.1. Dimple jacket description

®
The Palletank jacketed for LevMixer
has been designed for having a maximized
heat transfer surface. All faces are insulated;
all faces are jacketed except the front face
(200L to 1000L) and the lid. The heat trans-
fer fluid pathway allows the circulation of
the heat transfer fluid through the bottom
and four sides (50L and 100L)|three sides
(200L to 1000L) of the Palletank
The dimple jacket characteristics provide an
excellent heat transfer by generating turbu-
lence (dimples). Moreover, dimple jacket baf-
fles increase the fluid velocity (See Figures 4
and 5).
Figure 4. Dimple jacket section
A. Dimples
B. Bag contact surface
C. Heat transfer fluid circulation
Figure 5. Dimple jacket with baffles creating
circuit in "S"
A. Heat Transfer Fluid Inlet
B. Heat Transfer Fluid Outlet
C. Baffles
D. Dimples

4.2.2. Insulation system description

®
range The insulation surrounding the dimple jacket is composed of two insulation foams:
1. The malleable glascofoam in contact with the thinner plate,
2. The rigid polyfoam insuring the insulation over the malleable glascofoam.
Finally, the external stainless steel envelope surrounds the rigid insulation foam.

4.2.3. Technical specifications

4.2.3.1. Thermal Conductivity
®
.
Description
Internal surface of
the Palletank
External surface of
the dimple jacket
External surface of
the Palletank
Insulation foam (1) Glascofoam
Insulation foam (2) Polyfoam
N|A = not applicable
Please note that the thermal conductivity values are indicative and cannot be taken
as specifications.
4.2.3.2. Temperature controlled surface and heat transfer fluid volume
®
Palletank volume
50L
100L
200L
400L
650L
1000L
4.2.3.3. Pressure specifications
In conformance with the ASME VIII Div 1 Appendix 17 certificate and PED 97/23/EC, the
pressure inside the dimple jacket is validated as follows:
Parameters
Maximum operating pressure
Test pressure during validation
4.2.3.4. Heating|Cooling System Recommendations
The Palletank
system (i.e. chiller) or can directly be connected to facility's water network. Sartorius Stedim
Biotech recommends the use of insulated tubing.
Caution:
In both cases, the operating pressure must be lower than the maximum validated operating
pressure.
Material Surface Finish
Stainless steel Bead blasted
®
304L
Stainless steel Bead blasted
304L
Stainless steel Bead blasted
® 304L
N|A
N|A
Jacketed surface (m
0.33|3.5
0.721|7.76
1.024|11
1.821|19.6
2.5|27
3.11|33.55
® jacketed for LevMixer ® can either be used with a stand-alone heating|cooling
Thickness
4 mm|0.16"
1.2 mm|0.05"
2 mm|0.08"
20 mm|0.79"
50 mm|1.97"
2
|sqf) Heat transfer fluid volume (L)
including tubing
2
3.3
4.2
6.6
8.5
10.5
Pressure (bar|psi)
10|150
15|225
Thermal
Conductivity
(kcal/m/°C/h)
0.037
0.037
0.037
0.034
0.034
7