Table of Contents
Advertisement
ISTRUZIONI ORIGINALI
A
MS-301
300 mm
300 mm
500 mm
150 mm
MS-631
− It must be accessible to suitable lifting equip-
ment.
− Air change in the room or inside the machine
where the pump has been installed must be
ensured.
Avoid exceeding 40 °C ambient temperature.
− The pump must be protected against jets or
sprays of water that may penetrate the tank
through the exhaust port.
− Whenever the pump is installed outside, it must
be protected against atmospheric agents.
WARNING!
Do not install the pump in a dusty area or where
other materials may block or quickly cover the
cooling surfaces.
CONNECTIONS TO THE INLET AND EXHAUST
FLANGES
Remove the protective caps from both flanges.
Connect the system to be evacuated to the inlet
flange, using a centering ring with OR and a lock-
ing collar.
NOTE
For guaranteed reliable sealing, use an OR gasket
in Perbunan or Viton.
The inlet duct is equipped with a sieve filter pre-
venting solid particles from entering and damaging
the pump.
NOTE
When the gases to be pumped out contain dust, it
is advisable to insert a dust filter before the inlet
flange.
NOTE
When the gases to be pumped out contain large
quantities of vapor, it is advisable to include a con-
dense separator before the inlet flange.
To make best use of the pump's capacity, use only
short, straight piping, with a diameter not smaller
than that of the inlet flange.
NOTE
If rigid piping is used, it is good practice to use a
flexible joint in order to avoid undue forcing of the
connection on the pump.
B
C
D
100 mm
350 mm
100 mm
660 mm
The exhaust duct must be connected to a pipe that
will take away the pumped out gases.
Application of an oil trap filter is necessary to avoid
pollution of the surrounding atmosphere by the oil
present in the exhaust duct during pump opera-
tion.
Never block the pump exhaust line. This would
cause overpressure in the casing with the risk of
breaking the glass window of the level indicator
and/or expelling the oil seal gasket.
For proper operation, the filter (optional) must be
mounted in HORIZONTAL position.
Connection to the vacuum system
The connection to the chamber to be pumped
down must be carried out by means of pipes of the
same diameter as the inlet port.
Pipe weights and expansions, if any, must not rest
on the pump.
It is advisable to make the final connection to the
pump with flexible pipes or fittings.
It is important that all the pipes and the different
fittings are tight and, if possible, check with a Var-
ian leak detector. Very long or small diameter
pipes will decrease the pump performances.
21/43
TECHNICAL INFORMATION
NOTE
CAUTION
CAUTION
87-900-136-01
Advertisement
Table of Contents
