Description
3 Description
3.1
Design and Function
3.1.1 Laboratory-Vacuum-System
A rotary evaporator can achieve its full performance capability as a result of precisely controlled, ana-
lytically pure vacuum.
The Laboratory Vacuum System “LVS 110 Tp ecoflex” has been specifically designed to meet these
requirements.
The chemically resistant diaphragm pump “MPC 104 Tp” provides an oil-free, dry and thus analytically
pure vacuum to an ultimate pressure of < 2 mbar. The maximum pumping speed of 1.1 m
3
/h is
matched directly to the actual requirement by the speed control of the powerful and extremely quiet
24 V EC drive of the diaphragm pump.
The LVS thus always works optimally. With a high quantity of gas under full power = maximum speed,
with a low quantity of gas correspondingly slower. That protects the diaphragm pump, reduces the al-
ready low energy consumption, and considerably reduces the noise level. At the same time, this de-
sired reduction of the stroke rate leads to a reduction of the pump temperature and to increased con-
densation. To prevent this, the pump heads are held at a constant temperature by a control system.
Investigations have shown that this eliminates the need for a gas ballast valve. A gas ballast valve (
see
chapter 3.5)
can be optionally mounted if this is not possible under certain conditions.
The new design, the functional and well-arranged structure, and the smaller dimensions allow trouble-
free, time-saving cleaning.
A second operating console (operating pad) can easily be connected for remote control of the LVS 110
Tp ecoflex, for example for working in the extraction hood or in other critical areas.
The LVS 110 Tp ecoflex is supplied complete with a suction-side separator and a pressure-side emis-
sion condenser in the form of an intensive cooler.
1
Suction side connection
hose nozzle for hose DN8
2
Separator
(round-bottomed flask) suction side
3
Casing
Diaphragm pump MPC (fitted in the casing)
with main switch
4
Control level Vacuum Controller
with integrated grip recess
5
Emission condenser KD 500/5 insulated
at the pressure side with safety valve
and cooling water connections,
outgoing air connection (hose nozzle for hose DN8)
Fig. 1a LVS 110 Tp ecoflex - Front view
6
Separator
(round-bottomed flask) outgoing air side
7
Cooling water (feed flow / back flow)
8
Connection outgoing air
hose nozzle for hose DN8
9
Main switch
(Power)
10
Main device fuse
11
Plug for non-heating device power cable
(Main in)
12
PC connector
(RS 232)
13
Connector socket for operating pad
(optional)
14
Connector socket for water valve
(optional)
15
Inert gas connection
DN 4
Fig. 1b LVS 110 Tp ecoflex - Rear view
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