Schmalz EVE-KL, Operating Instructions Manual

Page: 3 / 20

Product Description
Use
The vacuum pump is intended for
−
the suction
of
−
air and other dry, non-aggressive, non-toxic and non-explosive
gases
Max. allowed temperature of the inlet gas: 40 °C
Standard-version:
The gas shall be free from vapours that would condensate under
the temperature and pressure conditions inside the vacuum
pump.
Version “Aqua”:
The vacuum pump is intended for the placement in a non-potentially
explosive environment.
Max. permissible number of startings per hour: 12
Vacuum pumps MM 1324 AV standard-version are thermally
suitable for continuous operation down to ultimate pressure.
Vacuum pumps MM 1324 AV Version “Aqua” are thermally suitable
for continuous operation at intake pressures down to 200 hPa abs
(200 mbar abs). By means of process control and/or vacuum relief
valves it must be made sure that the minimum allowed intake
pressure will not be underrun.
Vacuum pumps MM 1202 AV, MM 1200 AV, MM 1252 AV and
MM 1250 AV are thermally suitable for continuous operation at
intake pressures down to 100 hPa abs (100 mbar abs). By means of
process control and/or vacuum relief valves it must be made sure
that the minimum allowed intake pressure will not be underrun.
Vacuum pumps MM 1322 AV and MM 1320 AV (version
600…3600 min
-1
) are thermally suitable for continuous operation at
intake pressures down to 150 hPa abs (150 mbar abs). MM 1320 AV
(version 600…4200 min
-1
) are thermally suitable for continuous
operation at intake pressures down to 200 hPa abs (200 mbar abs).
By means of process control and/or vacuum relief valves it must be
made sure that the minimum allowed intake pressure will not be
underrun.
Version “Aqua”:
The safety valve on the vacuum pump protects the vacuum
pump against overheating only. It is not designed for frequent
use and must therefore not be used as a system pressure
regulating valve.
Principle of Operation
The vacuum pump works on the claw principle.
The components are dimensioned such, that on the one hand there
is never contact between the two claws or between a claw and the
cylinder, on the other hand the gaps are small enough to keep the
clearance loss between the chambers low.
In order to avoid the suction of solids, the vacuum pump is equipped
with a screen (715) in the suction connection.
In order to avoid reverse rotation after switching off, the vacuum
pump is equipped with a non-return valve (o, 714).
Product Description
a Eye bolt
b Terminal box
c Directional arrow
d Cooling air outlet
e Oil sight glass
f Oil drain plug
g Suction connection (with inlet
air filter)
h Inlet air filter (optional)
i Cooling air inlet
j Position of condensate drain
cock (optional for version
“Aqua”)
k Gas discharge
l Acoustic enclosure
m Cylinder
n Rotor
o Non return valve
p Suction connection (without
inlet air filter)
30.30.01.00867-00_EN / 04.2015
Seite 3
Conveying media with a lower or higher density than air leads to an
increased thermal and/or mechanical load on the vacuum pump and
is permissible only after prior consultation with
Schmalz
.
The vacuum pump features the corrosion protection coating
CPC and is capable of conveying water vapour
➔
page 9:
Conveying Condensable Vapours). Conveyance of other
vapours shall be agreed upon with
Schmalz
. Conveyance of
water or other liquids in liquid phase increases the power
consumption and shall therefore be avoided (risk of drive
overload).
EVE-KL