• Two New Sub-Atmospheric Gas Regulators Provide Precise Control and Excess Pressure Relief

Flow Level Pressure

Two New Sub-Atmospheric Gas Regulators Provide Precise Control and Excess Pressure Relief

Jun 22 2015

A new series of highly durable specialized gas regulators designed to provide accurate control of systems operating under vacuum has been introduced by AURA Controls (USA), the world leader in pressure and process control technologies.

The EXS Sub-Atmospheric series regulator provides precise control under sub-atmospheric conditions, along with low set point 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. 

The EXZ Sub-Atmospheric series back-pressure 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 to maintain optimal process conditions. 

Fully configurable to meet the end-users specifications, the EXS is available in pressure ranges from 0 psia to 100 psig with orifice sizes from .02 to .08. The EXZ is available in control ranges from 0 psia to 15 psig, with seat material selection available to eliminate reaction with the media.  Each regulator is assembled in a Class 100 cleanroom, 100% helium leak checked, and fully flow and function tested to ensure the highest levels of accuracy and durability available.


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