Product description
Use
The vacuum pump is intended for
–
the suction (SV) or the discharge (SD)
of
–
air and other dry, non-aggressive, non-toxic and non-explosive ga-
ses.
Conveying media with a higher density than air leads to an increased
thermal and mechanical load on the vacuum pump and is permissible
only after prior consultation with Busch.
The vacuum pump is intended for the placement in a potentially
non-explosive environment.
The vacuum pump is thermally suitable for continuous operation.
The vacuum pump is ultimate pressure proof.
CAUTION
This vacuum pump is a dry running pump.
Do not lubricate the vacuum pump with oil or grease.
Principle of operation
The vacuum pump works according to the rotating vane principle.
A eccentric rotor (i) rotates in the cylinder. The centrifugal force of the
rotation pushes the vanes (h), which are sliding in slots in the rotor, to-
wards the wall of the cylinder. The vanes separate the sickle-shaped
space between rotor and cylinder into different chambers. When the
chambers are connected with the inlet channel, gas is drawn in, com-
pressed by the next rotation and then discharged.
The compression is done without the use of any kind of external lubri-
cant for lubrication. The drawn gases go through an integrated fine
mesh inlet filter (g). There is an integrated additional filter (j) in the
pressure version SD which is fitted behind the compression chamber.
The efficient fan enables successfull removal of heat from the motor
and the pump cover.
Product description
Page 3
a
e
d
b
f
c
a
Suction connection
b
Gas discharge
c
Vacuum relief valve (SV series only)
d
Discharge silencer valve (SV series
only)
e
Cover
f
Arrow label
g
Inlet filter
h
Vanes
i
Rotor
j
Pressure filter (SD series only)
h
j
g
a
b
i
