The AURA EXZ sub-atmospheric back-pressure regulator provides adjustable relief of excess positive pressure in systems operating under vacuum caused by pressure buildup or upstream sample injection. The proprietary hybrid spring design operates in conjunction with the EXZ’s oversized dual-surface diaphragm to ensure the highest level of precision and repeatability. Multiple seat material options eliminate reaction with the media. This allows the user to accurately throttle excess positive pressure from the system to maintain optimal process conditions.

Each EXZ regulator is assembled in a Class 100 cleanroom as a complete assembly with all gauges, fittings, and valves attached.  The completed assembly is 100% helium leak checked and cleaned for oxygen service.  Additionally, the EXZ undergoes multiple flow and function tests to meet the harsh demands and rugged environments of any application worldwide.

The EXZ is available with Dursan® LS inert and anti-corrosive technology that provides superior corrosion resistance to exotic metals in highly acidic or caustic applications. The Dursan’s inert surface also eliminates moisture and process media absorption, making the EXZ the ideal choice for accurate and reliable excess positive pressure control in sub-atmospheric applications.