The Welch Vacuum 202503 two-head diaphragm pump has a 34 liter per minute (LPM) free air displacement with adjustable vacuum to 2 Torr. Inlet and exhaust catch jars and a self-cleaning function purge corrosive vapors from the system and extend diaphragm life. The polytetrafluoroethylene (PTFE) air flow path is corrosion resistant for use with applications such as rotary evaporation, solvent concentration, and gel drying. The oil-free diaphragm pump allows operation without oil misting and contaminated oil disposal. It is driven by a 1/8 HP motor that accepts 230V, 50Hz input power and has an International Electrotechnical Commission (IEC) power cord with a Schuko plug. It connects to 1/4" inside diameter vacuum system 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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