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~ 49
-
3.3
- CHOOSING
THE
OIL
—
3.31
- WHY
CORRECT
OIL
IS
IMPORTANT
:
Oil
has
numerous
functions
in
the
pump
(see
parag.
2.3).
The
correct
oil
is
critical
for
a good
vacuum.
The
choice
depends
on :
Chemical
aggression
and
corrosion
of
the
pumped
products.
-
Used
accessories.
- Maintenance
intervals
that
you
want
be
compelled.
Total
operating
cost.
Different
oils
produce
different
partial
pressures
in
the
same
pump.
The
partial
pressure
depends
on
the
satured
vapor
pressure
of
the
oil,
its
viscosity
and
its
ability
to
dissolve
gases.
Synthetic
oils
in
particular
produce
a significant
rise
in
the
ultimate
pressure
of
two-stages
pumps.
3.32
— RECOMMENDED
OILS
:
For
the
hermetic
pumps
series,
ALCATEL
recommends
oils
listed
in
the
table
below.
Oils
with
similar
characteristics
can
be
used,
however.
|*
INFLUENCE
ON]
|
|.
Reduced
backstreaming
|
|
|
|
|
ULTIMATE
|
LIMITATION
|
OILS
|
APPLICATIONS
|
VACUUM
OF
A
|
ON
USE
|
|
| TWO-STAGE
PUMP|
|
|
|
|
| ALCATEL
100|General
purpose
paraffin-based
|
-5
|
|
|mineral
oil
3;
|
5.10
mbar
|
Flammable
|
|.
Good
base
pressure
|
|
|
|.
Low
backstreaming
|
|
| ----------- | ------~--------------------------- | -------------- |--------------
|ALCATEL
102|Anti-emulsion
mineral
oil
|
~4
|
|
|.
Drying
|
3.10
mbar
|
Flammable
|
|. Pumping
water
vapor
|
|
|
|. Freeze-drying
|
|
|----------- | ----~---~--+----~----------------- | -------—------ | --------------
| ALCATEL
111|Hydrocarbon-based
synthetic
oil
|
-3
|
|
|with
good heat
resistance
|
2.10
mbar
| Flammable
|
|.
Pumping
at
high
pressures
|
,
|
| ----------- | ---------------------------------- |~------------- | --------------
| ALCATEL
200|Mineral
oil
vacuum
distilled
|
-5
|
|
|.
Pumping
corrosive
products
| 5.10
mbar
| Flammable
|
|
|
|
* Partial
pressure
measured
by
Pneurop
method
with
a 2012
AH
ALCATEL
pump.
However,
ALCATEL
100
oil
can
be
replaced
by
the
following
fluids
INLAND
15.
INLAND
19.
SHELL
VITREA
100.
TOTAL
CORTIS
100.
INVOIL
20
*
ELF
MOVIXA
PV
100.
ESSO
TERESSO
100.
ELF
BARELF
F
100.
BP
CS
100.
In
this
case,
the
characteristics
can
be
different
from
those
listed
on
paragraph
1.3
and
in
the
table
above.
7
t
*
Registered
trademark
INLAND
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