AURA Gas Controls
This new series of highly durable specialized gas regulators (photo) is designed to provide accurate control of systems operating under vacuum. The EXS Sub-Atmospheric series regulator provides precise control under sub-atmospheric conditions, along with low setpoint and low-flow, positive-pressure applications. Its proprietary hybrid-spring design works in tandem with an oversized dual-surface diaphragm to enable sensitive control, in contrast to a standard regulator design that loses the ability to control pressure when subject to downstream vacuum, says the manufacturer. The EXZ Sub-Atmospheric series backpressure regulator provides repeatable relief of excess positive pressure caused by accumulation or upstream sample injection in systems operating under vacuum. Its high-load adjusting spring maintains seat closure under vacuum, while a negative bias-spring allows for precise relief as positive pressure is introduced. This enables the user to accurately throttle excess positive pressure from the system. — AURA Gas Controls, Virginia Beach, Va.