Frequently Asked Questions - US Vacuum Pumps

Rotary Screw Dry Pumps are used in applications where a high vacuum is required (up to 0 .010 mm Hg) and the process gas is not compatible with lubricating oil in oil ... Liquid Ring Pumps are used in applications where the process gas may contain a sizable amount of condensable vapors (water, solvents, acids, etc.)...

Kurt J. Lesker Company | Vacuum Pumps | Vacuum Science Is Our ...

Navigate our menu to shop by vacuum pump type/technology or click a vacuum pump manufacturer logo to shop by brand. We proudly distribute the most comprehensive range of vacuum pumps available from any single supplier. We have chosen to represent, or been chosen by, many of the finest vacuum pump...

Kurt J. Lesker Company | Pump Classifications Technical Notes ...

To generalize their applications, transfer pumps are used for high gas loads while capture pumps produce oil-free vacuums and UHV pressures. ... gears or bearings outside the vacuum volume (as in roots pumps, screw pumps, claw pumps) or at the pump's high pressure end (as in ceramic ball-bearing turbo pumps).

Dry Vacuum Pumps - Meyer Tool & Manufacturing

Jul 26, 2011 ... Traditionally, oil diffusion pumps and rotary vane or rotary piston pumps have been widely used in vacuum systems. These pumps ... ‚ÄčThe semiconductor industry, with its need for a high degree of cleanliness, has been a significant driving factor in the development of dry vacuum pumps. The reduction in...