An Example from the Plastics Industry
An example from the plastics industry
Procedure
- Polycondensation process in plastic flake processing at an operating pressure of less than 1 mbar abs..
Execution
- Three-stage Roots pumping station with liquid ring vacuum pump as backing pump. Pumping speed of the combination 9860 m³/h at 1 mbar abs., achievable final vacuum approx. 0.15 mbar abs..
Special feature
- Cleaning of the Roots pumps during operation. Sealing gas superimposed gear boxes. Pressure control via frequency converter controlled motors.
