Â The three-stage scroll vacuum pump from Air Squared Inc., Broomfield, Colo. (www.airsquared.com), can produce vacuums up to 5 mTorr (6.5 Ă— 10-6 atm) without a turbopump. Thatâ€™s about 10 times the vacuum attained by conventional pumps with turbos. And users can add a turbopump if they need higher vacuum levels. The oil-free pump is also compact, measuring 7.5 Ă— 5.9 Ă— 5.7 in., half the size of standard pumps, and weighs 10 lb.
The pump displaces 57 lpm, generates 45 dBA of noise, and requires 150 W to power it. There are only two primary moving parts and there are no inlet or discharge valves that could break, make noise, or cause losses.
Edited by Stephen J. Mraz