Rietschle Thomas”s Model 1101 miniature compressor includes a rolling diaphragm design that combines the features of rotary and diaphragm pumps. Rather than moving up and down, the Model 1101 pump’s diaphragm rolls in the cylinder. This increases airflow relative to size and provides precise flow with limited pulsation. Supports medical, laboratory, and industrial applications. A built-in resonator limits the pump’s noise level to 45 dBA. The pump measures just 2.75 inches (70 mm) long, one inch (27 mm) in diameter and weighs 2.6 ounces (75 g). Maximum flow is rated at 3.2 LPM. Maximum pressure rating is 500 MBAR (7.3 PSI). Available in both 5.5 and 12 VDC versions and features long-life EPDM (ethylene-propylene rubber) diaphragms and valves.