MEX - LEX liquid ring vacuum pumps
are high vacuum single stage type with vary port valve design.Besides simplicity and robustness, that are the main features, other advantages are as follows:
- wide range of applications
- high reliability
- possibility to handle almost any gas and vapour,
even with liquid carry over residuals
- isothermal compression
- the only moving part is the impeller
- various material executions available (hastelloy, tita-nium, etc.)
- low maintenance
- oil-free operation
- low vibrations
- silent running
MEX: The pump is fixed directly to the motor flange.
Motors are standard B3/B5 construction.
LEX: The pump
is mounted on a bracket. Motors are standard B5 construction.
Shaft supporting: for alla versions, there are two grea-se-lubricated ball bearings.
Rotating direction: clock-wise when viewed from the motor side.
Shaft seal: by means of a single mechanical seal according to DIN 24960.
The service liquid must be continuously fed to the pump during the operation in order to remove the heat of compression and restore the liquid ring as part of it is discharged with the gas.
The service liquid may be separated from the gas into a discharge separator and recirculated, if required, by following specific arrangements.
Normally, water is used as service liquid.