The QS5 Vacuum Pump is a two-stage, rotary vane pump with 5-cfm rated displacement for ultimate vacuum down to 15 microns. It is designed for quick, deep evacuation, as well as affordability and ...

Even the largest twin-cylinder models have flow rates of less than 10 cfm. Rotary-vane pumps use a series of sliding, ... A rotary-screw pump's vacuum capabilities are similar to those of piston ...

The vacuum pump and oil reservoir are typically located inside the apparatus pump house. The design of the vacuum-priming pump is usually a rotary-vane or rotary-gear pump type.