The Welch Vacuum 1405B-01 DuoSeal single-stage vacuum pump has a 90 liter per minute (LPM) free air displacement with adjustable vacuum to 0.0001 Torr. It is suitable for applications such as drying manifolds, freeze drying, vacuum ovens, glove boxes, degassing, concentrations, and distillation. The pump is driven by a 1/2 HP motor that accepts 115V, 60Hz input power. The motor operates at 525 rpm for long service life and a belt guard encloses the belt and pulleys for safety. The pump has a 1"-20 National Pipe Taper (NPT) thread inlet for connection to 7/16" bore tubing (sold separately). Welch-Ilmvac, a subdivision of Denver Gardner, manufactures vacuum pumps, systems, and components for industrial and research applications under the Welch and Ilmvac brand names. Denver Gardner, founded in 1859, is headquartered in Milwaukee, WI.
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