The Inert Loop B-295 has a sideward hose connection
for the exhaust gas. Due to the constant feeding with
nitrogen, a certain amount of it is permanently leaving
the system through this outlet tube. If air is sucked in
through the tube, this is an indication that the closed
loop is not tight.
a Tubing between outlet filter and aspirator inlet
b Nitrogen inlet
c Tubing between heater inlet and B-295 outlet
d Tubing between aspirator outlet and B-295 inlet
e Exhaust gas (nitrogen) outlet tube
1
3
5
Fig. 5.20: Tubing installation for closed mode operation with Mini Spray Dryer B-290 Advanced and Inert Loop B-295
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