Welch Oil-free vacuum pump
11 – 45 l/min | 25xx series
Welch Non Corrosive Duty
– Filtration
– Aspiration
– Desiccation
– Replace water aspirator
– Vacuum Drying
– Chamber Roughing
– Filtration
– Aspiration
– Desiccation
– Replace water aspirator
– Vacuum Drying
– Chamber Roughing
Features
– Vacuum and Pressure – to 60 Torr (27.6″Hg) and 106 Pascal (100 PSIG)
– Three Sizes – 22 L/min, 34 L/min, 45 L/min
– No Water or Oil
– Welch Vacuum and Welch Pressure Regulators and Guages – simple to adjust and monitor vacuum level and delivery pressure
– Inlet Water Trap – float ball rises to sear off pump from accidental ingestion of water.
– Muffler – welch quiets pump and fliters discharge air
– Low Cost
July 20, 2004 – Oil-free vacuum pumps, models 2522B-01, 2534B-01, 2546B-01, 2567B-50, 2561B-50, 2585B-50 and 2581B-50, are configured with inlet liquid trap, mounted vacuum gauge, muffler, and welch vacuum regulator. Utilizing Wob-L piston, pumps create flow and welch vacuum levels to 29.8 in. Hg, while high water vapor tolerance allows water vapor to pass through cleanly. They may be used with buffer solutions, but are not recommended for use with acids, basics, or organic solutions.
