Dwyer Instruments A-350 Aspirator Bulb

The Dwyer Instruments A-350 Aspirator Bulb functions as a flexible part that produces vacuum and pressure for multiple testing applications on HVAC systems. The part functions mainly for calibration purposes and leak detection tests to verify the precision of pressure measurements in CO2 indicators and smoke gauges. Specifications and Operation. A single-hand operation of the squeeze mechanism enables users to generate a vacuum and pressure. Users achieve effective gas sampling and leak detection through tubing connections to the bulb.