Product Description | 2
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2.1 Operating Principle
The machine works on the rotary vane principle.
The oil seals the gaps, lubricates the vanes and takes away compression heat.
The oil filter cleans the circulating oil.
Exhaust filters separate the oil from the discharged gas.
2.2 Application
The machine is intended for the suction of air and other dry, non-aggressive, non-toxic
and non-explosive gases.
Conveying of other media leads to an increased thermal and/or mechanical load on the
machine and is permissible only after a consultation with Busch.
The machine is intended for the placement in a non-potentially explosive environment.
The machine is capable of maintaining ultimate pressure.
Version with float valve (standard):
The machine is suitable for continuous operation.
Version with oil return valve:
During operation oil accumulates at the bottom of the upper chamber of the oil separ-
ator, which cannot flow down into the bottom chamber, as long as the machine runs. At
the latest after 10 hours of continuous operation, in case of high pressure difference
between suction side and pressure side after a shorter period, the machine must be shut
down for at least 15 minutes, so that the oil can run down from the upper chamber of
the oil separator into the bottom chamber.
Permitted environmental conditions see
Technical Data [
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19]
.
2.3 Optional Accessories
2.3.1 Gas Ballast Valve
It mixes the process gas with a limited quantity of ambient air to counteract the con-
densation of vapour inside the machine.
2.3.2 Inlet Filter
It protects the machine against dust and other solids in the process gas. The inlet filter is
available with a paper or polyester cartridge.
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