AURA Controls
The EXD Series automatic differential-pressure switchover (photo) is a highly accurate, reliable gas-distribution system that automatically switches between two high-pressure gas sources to enable uninterrupted supply. The EXD system is designed to provide a continuous supply of high-purity gas in critical applications and demanding process environments. The system is suitable for carrier- and calibration-gas delivery applications used in chromatography processes, sampling systems and laboratory instrumentation. The proven switching technology provides failsafe operation utilizing a priority valve assembly, allowing the user to replace depleted gas containers without system interruption and increasing the amount of time between change-outs. — AURA Controls, Virginia Beach, Va.