A liquid band vacuum pump is easy to operate and is utilized in several applications across various industries. A liquid band pump works with a sealant required in its operation. This liquid can be water, essential oil or any other solvent which is rotated by an 
impeller within the casing of the pump.
The typical oil found in a big rotary piston vacuum pump is a mineral oil that is through a distillation process to lessen its vapor oil-free air compress pressure. These vacuum pumps possess an ultimate vacuum, occasionally called “blank off” vacuum, of 0.010 Torr (10 microns, 1 x 10-2 Torr or 0.0133 mbar).