Oil-lubricated Rotary Vane Technology
in Vacuum Priming Systems

PROPERTIES & ADVANTAGES

–5 acfm to 215 acfm typical
–˝ horsepower to 10 horsepower
–Deepest vacuum capability, 29.9” HgV (0.4 Torr)
–Highest efficiency
–Easiest installation
–Moderate maintenance

ROTARY VANE PRINCIPLE

In a cylindrical housing, a rotor is located eccentrically on a shaft near the top of the cylinder. Free moving vanes are positioned inside slots cut into the rotor. When the vacuum pump is started, centrifugal force slides the vanes outward against the cylinder creating multiple chambers, or cells, between the vanes, rotor, and cylinder. The vanes hydroplane on a thin bead of oil which eliminates wear, creates excellent sealing, and removes heat. As the rotor turns, the cell volume is constantly increasing or decreasing, inversely affecting the pressure inside each cell. When the air reaches the discharge port, it is expelled after going through several stages of air/oil filtration.