Liquid ring vacuum pump are nerly maintenance free pumps.
The only moving parts are impellers with the shaft.
Seals and bearings are needed to change periodically.
If used water is limy cleaning is also required in time
Periodically maintenance is easy and takes short time.
Disassembly and assembly of the pumps are sensitive and takes time therefore it should be planned.
Follow the instructions for disassembly and assembly of the pumps.
Periodic Maintenance
1.Ball bearings used on stage pumps have own closed cage and lubricated free bearings.
They don't need any outer lubrication.
According to application, if necessary, lubricate the bearings everyday from greasors on the pumps.