Profile: Aalborg® is a manufacturer of precision instrumentation for flow measurement and control. Our variable area division produces a diversified line of rotameter-type flow meters and needle valves. We make aluminum, brass, stainless steel, and teflon flow meters which accurately measure micro to industrial flow ranges. The electronics division produces state-of-the-art thermal mass flow meters and mass flow controllers for gases and vortex flow meters for steam, liquids, and gases. NIST traceable flow meter calibrations are performed in our well-equipped laboratories.