Mounting instructions VacuStar WR 2500 / WR 3100 / WR 4000
Design and function
18
Fig. 6: Functional principle
Lubrication
All moving parts are without contact. The lubrication of the
VacuStar WR is limited to the impeller bearing. The bearings are
fitted with a permanent grease filling.
Cooling
The unit is cooled by the process water and/or the liquid ring. A
radiator in the process water circulation dissipates the heat to the
environment.
Shaft sealing
Maintenance-free slide ring seals separate the working space from
the bearings and/or the atmosphere.
Sense of rotation
The unit is always driven from the A-side. The VacuStar WR is
optionally available with clockwise or anticlockwise sense of
rotation.
Connecting flanges
Location (A-side or B-side) and direction (horizontal or vertical) of
suction and pressure flange are variable. Fig. 4 (page 13) shows a
diagram of the flange allocations.
