Product Description
Use
The compressor is intended for
–
the compression
of
– air and other dry, non-aggressive, non-toxic and non-explosive
gases
Conveying media with a lower or higher density than air leads to an in-
creased thermal and/or mechanical load on the compressor and is per-
missible only after prior consultation with Busch.
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 compressor.
Version “Aqua”:
The compressor features the corrosion protection coating CPC and
is capable of conveying water vapour (Ú page 7: Conveying
Condensable Vapours). Conveyance of other vapours shall be
agreed upon with Busch. Conveyance of water or other liquids in
liquid phase increases the power consumption and shall therefore
be avoided (risk of drive overload).
The compressor is intended for the placement in a non-potentially ex-
plosive environment.
The compressor is thermally suitable for continuous operation
(100 percent duty).
Max. permissible number of startings per hour: 12
The maximum allowed pressure on the pressure connection (i) is
0.8 ... 2.0 barg (the nameplate of the compressor indicates the valid
pressure). By means of process control and/or pressure relief valves it
must be made sure that the maximum allowed pressure will not be
exceeded.
Principle of Operation
The compressor 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 cylin
-
der, 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 compressor is equipped with
a screen (715) in the gas inlet.
In order to avoid reverse rotation after switching off, the compressor is
equipped with a non-return valve (714).
The compressor compresses the inlet gas absolutely oil-free. A lubrica-
tion of the pump chamber is neither necessary nor allowed.
Cooling
The compressor is cooled by
–
radiation of heat from the surface of the compressor
–
the air flow from the fan wheel of the drive motor
–
the process gas
–
the air flow from the fan wheel mounted opposite the drive motor,
driven by a separate motor (e)
Start Controls
The compressor comes without start controls. The control of the
compressor is to be provided in the course of installation.
Safety
Intended Use
Definition: For the purpose of these instructions, “handling” the
compressor means the transport, storage, installation, commissioning,
influence on operating conditions, maintenance, troubleshooting and
overhaul of the compressor.
The compressor is intended for industrial use. It shall be handled only
by qualified personnel.
The allowed media and operational limits (Ú page 3: Product De
-
scription) and the installation prerequisites (Ú page 4: Installation
Prerequisites) of the compressor shall be observed both by the manu
-
facturer of the machinery into which the compressor is to be incorpo
-
rated and by the operator.
The maintenance instructions shall be observed.
Prior to handling the compressor these installation and operating in
-
structions shall be read and understood. If anything remains to be
clarified please contact your Busch representative!
MI 1502 BP Product Description
0870152627 / 101117 page 3
a Directional arrow
b Gas inlet
c Silencer
d Safety valve
e Oil fill plug (=venting valve)
f Separate fan
g Oil sight glass
h Oil drain plug
i Gas discharge
j Base frame
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