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Available
with CE Marking as per PED
- 97/23/EC,
The Machine Directive - 98/37/EC,
The European Low Voltage Directive
- 73/23/EEC,
The EMC Directive
- 89/336/EEC. |
DESCRIPTION |
Selecting
the correct operating parameters for
Rotary Film Evaporators is an important
part of your application. Many variables
must be considered, i.e. choosing the
appropriate bath temperature, vacuum
pressure, rate of evaporation, and accessory
chiller—so it's no surprise to
find more vapors collecting in the lab
environment than in the receiving flask!
We at BVR will be glad to advise you
in your selection for the right configuration
of Rotary Film Evaporator along with
the working parameters and accessories/utilities.
The Rotary Film Evaporator is essentially
a thin film evaporating unit incorporating
a rotating evaporation flask. The rotary
evaporator will evaporate solvent at
a much faster rate than systems using
stationary evaporation flasks, due to
higher convectional heat transfer coefficient.
The rotation transfers a thin film of
the liquid to the whole of the inner
surface of the flask, markedly increasing
evaporation rate due to higher heat
transfer between the flask, bath and
the thin film. The rotating flask and
vapour duct have a sealing system which
allows operation under vacuum, further
accelerating the evaporation process
because of the reduction in boiling
point of the solvent and efficient removal
of the vapour. Besides the reduction
in boiling point there is a considerable
decrease in the residence time of the
fluid, which also permits heat sensitive
materials to be successfully concentrated
without degradation.
The evaporators can be evacuated down
to less than 1 mbar if the vacuum seals
are maintained in good condition. A
continuous feed facility considerably
increases the capacity of the units
and distillate withdrawal facilities
on some units allow uninterrupted operation.
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Digital
display & auto PID control
of rotation speed, vapor temperature
and bath temperature. |
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Convenient
controls for adjustment of rotation
speed and heating bath temperature |
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Digital
display of process time |
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Miniature circuit breaker and
separate power switches for
control panel and heating bath
offers safety |
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Vacuum
Controller (Optional) |
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Bath
temperature display accuracy
+/- 1 °C |
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Digital
display for vapor temperature
+/- 1 °C |
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RS-232
interface (Optional) |
The units can be offered with full automation
incorporating a PLC based system or
even SCADA for real time data acquisition
and control. This facilitates you to
programme your experiments & piloting
with the least possible human involvement
thus increasing accuracy of results
and efficiency of the product besides
consistency of the final product quality
when used for production processes.
There
is a range of models covering an evaporation
flask capacity from 1 litre l to 100
litres. The majority of these models
may be used on the laboratory bench;
the larger models (10, 20, 50 &
100 litres) are designed for use in
pilot plants and production facilities.
Model |
V-RFE1 |
V-RFE2 |
V-RFE5 |
V-RFE10 |
V-RFE20 |
V-RFE
50 |
V-RFE
100 |
Evaporating
Flask Capacity |
1L |
2L |
5L |
10L |
20L |
50L |
100L |
Flask
Rotation (rpm) |
0-80 |
0-80 |
0-80 |
0-80 |
0-80 |
0-80 |
0-80 |
Motor
Power (hp) |
0.25 |
0.25 |
0.25 |
0.25 |
0.25 |
0.50 |
0.50 |
Condenser
HTA m2 |
0.10 |
0.10 |
0.20 |
0.20 |
0.30 |
0.50 |
1.0 |
Receiver
Flask |
1L |
1L |
2L |
5L |
10L |
20L |
20L |
Heater |
1
Kw |
2
Kw |
2
Kw |
4
Kw |
4
Kw |
6
Kw |
8
Kw |
Power
(Volt)
Supply (Hz)
|
230/
440V 50/60 |
230/
440V 50/60 |
230/
440V 50/60 |
230/
440V 50/60 |
230/
440V 50/60 |
230/
440V 50/60 |
230/
440V 50/60 |
Bath
Movement |
Manual
or Motorized |
Manual
or Motorized |
Manual
or Motorized |
Manual
or Motorized |
Manual
or Motorized |
Manual
or Motorized |
Manual
or Motorized |
Construction
Bath,Body,
Structure &
Supports
|
S
S
& MS with
PU coating
|
S
S
& MS with
PU coating |
S
S
& MS with
PU coating |
S
S
& MS with
PU coating |
S
S
& MS with
PU coating |
S
S
& MS with
PU coating |
S
S
& MS with
PU coating |
CHOOSING A RECIRCULATING
CHILLER |
BVR
can advise and offer suitable Chillers
to provide the necessary cooling capacity
for any application. Chillers offer
lower cooling temperatures and higher
heat removal capacity than tap water
cooling.
CHOOSING VACUUM CONTROLLERS |
Vacuum
Controllers play a critical role in
regulating evaporation experiments:
without one, experiments can only run
at maximum vacuum pressure. Vacuum Controllers
reduce the risks of sample loss and
lab contamination, and they may be programmed
to reduce bumping and foaming and perform
automatic distillations. We at BVR can
advise and offer suitable vacuum controllers
and pump too suitable for the particular
model & application.
Besides the aforesaid standard models
we can offer special tailor made units
as per your requirements, of different
configurations and higher capacities
too. We can suggest especially designed
units too having higher evaporation
efficiency and mechanical stability,
which is really critical as the size
of the rotating flask increases. For
further information please contact our
technical team at consult@bizvalueresources.com.
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