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 ...

Atlas Copco has launched the GVS A range of oil-sealed rotary vane vacuum pumps, which is cooler, ... GVS A pumps provide flow rates from 16 to 7 00 m 3 /h, up from 20 to 305 m 3 /h for the previous ...

A rotary-vane pump's electric motor cannot efficiently cycle on and off to break a vacuum. A vacuum valve can be added for intermittent use, but the motor must still run continuously.

Rotary-vane pumps usually have lower vacuum ratings than piston pumps, in the 20 to 28 in. Hg range. However, there are a few exceptions. Some two-stage, ...

Its rotary vane magnetic drive pump design combines the leak-free benefits of a magnetic drive pump with the numerous advantages of sliding vane technology, including self-priming, ...

The rotary vane pump was patented June 16, 1874 by Charles C. Barnes, a Sackville, New Brunswick, Canada engineer who is generally credited with inventing the modern design. Rotary vane compressors ...

Dominic Colletti discusses fire pump accessories: they may not be glamorous, ... The design of the vacuum-priming pump is usually a rotary-vane or rotary-gear pump type.