Air Dimensions R221-AT-AA1 Vacuum Pump

Air Dimensions' R221-AT-AA1 Dia-Vac pump is a single-head, air-driven high-vacuum pump in the R-Series, engineered for gas sampling and general-purpose vacuum tasks where a compact, oil-free diaphragm pump is required. Part of Air Dimensions' Dia-Vac family, the R-Series pumps deliver vacuum levels up to about 29.8 inches of mercury and are designed for modular configuration, with hazardous-area variants available for Class I Division I and Zone 1 environments when specified by the manufacturer. The R221-AT-AA1 operates from a supplied compressed air source rather than an electric motor, providing clean exhaust and enabling safer integration with analytical instruments, leak-testing rigs, environmental monitors, and process-control equipment in laboratories and industrial settings. Typical use cases include gas sampling and preparation for analytical measurements, calibration and testing of vacuum-dependent instrumentation, and other laboratory or field tasks requiring reliable vacuum generation without introducing lubricants into the gas stream.