Product Description | 2
Instruction Manual R5 RA 0025-0100 F_EN_en
5 | 36
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.
In order to avoid reverse rotation after switching off, the machine is equipped with a non-return
valve (NRV).
In order to avoid solids from entering, the machine is equipped with an inlet screen (IS).
The oil filter cleans the circulating oil.
Exhaust filters separate the oil from the discharged gas.
2.2
Intended Use
WARNING
In case of foreseeable misuse outside the intended use of the machine.
Risk of injuries!
Risk of damages to the machine!
Risk of damages to the environment!
●
Make sure to follow all instructions described in this manual.
The machine is intended for the suction of air and other dry, non-aggressive, non-toxic and non-ex-
plosive 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 designed for indoor installation, in case of outdoor installation, ask your Busch rep-
resentative in order to take specific precautions.
The machine is capable of maintaining ultimate pressure, see
30].
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 separator,
which cannot flow down into the bottom chamber, as long as the machine runs. After 10 h
of continuous operation near ultimate pressure, in case of operation in rough vacuum, after
a shorter time:
●
The machine must be shut down for at least 15 min
➔
The oil can run down from the upper chamber of the oil separator into the bottom
chamber.
