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Powerex • 150 Production Drive • Harrison, OH 45030 • USA
General Description
The Powerex vacuum pumps are lubri-
cated-vane vacuum pumps, which can
be used for a variety of applications.
These vacuum pumps create a suction
system, designed to rid unwanted flu-
ids and/or gases from the working area.
Wasted fluids are deposited into a col-
lection tank, and the vapors are filtered
through the system and then vented
into the atmosphere.
The Powerex vacuum pumps draw the
intake gas through a suction filter
(available as a factory installed option
or may be provided by the customer), a
protective stainless steel screen, and a
built-in suction valve to fill the inlet
section of the pump (Figure 1). The
centrifugal force resulting from the
rotation of the rotor, forces the vanes
against the inner wall of the pump
body, thereby forming three chambers
leading to a succession of variable vol-
umes that create the vacuum and flow.
Rotary Vane Vacuum Pumps
Phases of Operation:
1
Suction / start of filling
2. Maximum filling volume
3. Compression and exhaust
During phase 1, oil is injected for lubri-
cation, sealing, and cooling. Prior to
injection, a portion of the oil is passed
through an oil filter to remove any
debris. The gas / oil mixture travels from
the pump body, through the exhaust
IN552600AV 2/03
P
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A
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valve, and to the exhaust unit where the
first stage oil separation occurs. In the
exhaust unit the exit gas velocities are
slowed and the flow directed upward so
that the largest droplets of oil are
allowed to fall back into the oil injector.
The remaining oil is removed from the
gas by coalescence in the separating fil-
ter. The gas is then discharged from the
pump and the oil is returned to body of
the pump through a trap and automatic
float valve assembly.
Figure 1 - Vacuum pump operation
LVP0157
1.5
29.88
21
19
17
1725
5.3 / 5.0 / 2.5
1.9
3/4"
1.2
62
120
LVP0207
2
29.88
33
31
29
1725
6.4 / 6.2 / 3.1
3.2
1
1
⁄
4
" 2.2
62
180
LVP0307
3
29.88
46
45
44
1725
8.4 / 8.2 / 4.1
4.2
1
1
⁄
4
" 3.1
65
210
LVP0407
5
29.88
68
66
64
1725
14 / 13.2 / 6.6
4.2
1
1
⁄
4”
5.5
67
245
LVP0507
5
29.88
106
100
95
1725
14 / 13.2 / 6.6
4.2
1
1
⁄
4
"
6.2
70
275
LVP0757
7.5
29.88
134
130
125
1725
21.5 / 20 / 10
7.4
2”
9.7
71
485
End
Oil
Inlet
Water Vapor
Noise
Vacuum
ACFM @
ACFM @
ACFM @
Amperage
Capacity
Connection
Capacity
Level
Weight
Model
HP
in. Hg
0 in. Hg
19 in. Hg
25 in. Hg
RPM
208/230/460
(Qts.)
(NPT)
(lb/hr)
db(A)
(lbs.)
Specifications
