Product Description | 2
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2.4.2 Gas Ballast Valve
The gas ballast valve mixes the process gas with a limited quantity of ambient air to
counteract the condensation of vapour inside the machine.
The gas ballast valve has an influence on the ultimate pressure of the machine, see
2.5 Optional Accessories
2.5.1 Inlet Filter
The inlet filter protects the machine against dust and other solids in the process gas. The
inlet filter is available with a paper or polyester cartridge.
2.5.2 Additional Oil Separator
It allows to trap and recover at the machine exhaust the smallest oil particles.
The recovered oil is automatically re-injected in the machine.
It is recommended to use it when the machine working pressure is higher than 100 hPa
(mbar).
2.5.3 Water-oil Heat Exchanger
In case of unfavourable ambient conditions a water-oil heat exchanger can be provided.
See
Cooling Water Connection (Optional) [
2.5.4 Temperature Switch "Oil"
The temperature switch monitors the oil temperature of the machine.
It has two switch points.
Depending on the oil type, the machine must be stopped when the oil reaches a certain
temperature, see
.
2.5.5 Resistance Thermometer
The resistance thermometer monitors the oil temperature of the machine.
Depending on the oil type, warning and trip signals must be set, see
2.5.6 Level Switch
The level switch monitors the oil level.
The machine must be stopped when the oil level is too low.
2.5.7 Pressure Switch
The pressure switch monitors the pressure in the oil separator.
The machine must be stopped when the gas reaches a certain pressure, see
gram Pressure Switch (Optional) [
.
2.5.8 Pressure Transmitter
The pressure transmitter monitors the pressure in the oil separator.
Warning and trip signals must be set, see
Wiring Diagram Pressure Transmitter (Op-
.
