EX1 Series
Single Stage Pressure Reducing Regulator

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EX1 Operating/Maintenance Manual

The AURA EX1 is a general purpose regulator designed to provide primary pressure control of gas or liquid for inlets up to 6000 psig where minor fluctuations in outlet pressure due to variable inlet pressures are accepted. AURA’s encapsulated seat design consolidates the numerous moving internal components of a standard regulator into one single piece, allowing for ease of maintenance and minimizing potential failure points. Protected by a 10-micron 360° filter, the encapsulated seat provides significantly more filtration of impurities than the standard pressed-in disk. The encapsulated seat also filters damaging particles from all inlet ports rather than just the pipeline port. Available with multiple seat materials and orifice sizes, the EX1’s capsule ensures optimum performance in any application.
AURA’s proprietary machining process yields surface finishes of 4-25 Ra designed to reduce corrosion. With its minimal internal volume, the EX1 also allows less gas to be used while purging. The AURA EX1 is assembled in a Class 100 clean room as a complete assembly with all gauges, fittings, and valves attached. The complete assembly is cleaned for oxygen service and is 100% helium leak checked. Additionally, the EX1 undergoes multiple flow and function tests to ensure the highest level of purity and durability.
Available with Dursan® LS inert and anti-corrosive technology that provides superior corrosive resistance versus exotic metals in highly acidic or caustic applications, the EX1 is the right choice for critical applications.

EX2 Series
Two Stage Pressure Reducing Regulator

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EX2 Operating/Maintenance Manual

The AURA EX2 is designed to provide consistent primary pressure control of gas or liquid for inlets up to 6000 psig where minor fluctuations in outlet pressure due to decaying inlet pressures are not acceptable. AURA’s dual encapsulated seat design consolidates the numerous moving internal components of a standard regulator into one single piece, allowing for ease of maintenance and minimizing potential failure points. Protected by a 10-micron 360° filter, the encapsulated seat provides significantly more filtration of impurities than the standard pressed-in disk. The encapsulated seat also filters damaging particles from all inlet ports rather than just the pipeline port. Available with multiple seat materials and orifice sizes, the EX2’s capsule ensures optimum performance in any application.
AURA’s proprietary machining process enables metal to metal seals to guarantees the highest leak integrity available and yields surface finishes of 4-25 Ra designed to reduce corrosion. With its minimal internal volume, the EX2 also allows less gas to be used while purging.
The AURA EX2 is assembled in a Class 100 clean room as a complete assembly with all gauges, fittings, and valves attached. The complete assembly is cleaned for oxygen service and is 100% helium leak checked. Additionally, the EX2 undergoes multiple flow and function tests to ensure the highest level of purity and durability.
Available with Dursan® LS inert and anti-corrosive technology that provides superior corrosive resistance versus exotic metals in highly acidic or caustic applications, the EX2 is the reliable choice for critical applications.

EXB Series
Back Pressure Reducing Regulator

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EXB Operating/Maintenance Manual

The AURA EXB back pressure regulator provides adjustable relief of excess pressure in closed loop systems caused by spikes in inlet pressure up to 500 psig. AURA’s dual surface diaphragm or dynamic cartridge sensing elements increase the precision and flexibility of pressure control. This allows the end user to accurately throttle excess pressure from the system, whereas standard relief devices only provide open and close functions.
AURA’s proprietary machining process yields surface finishes of 4-25 Ra designed to reduce corrosion. The AURA EXB is assembled in a Class 100 clean room as a complete assembly with all gauges, fittings, and valves attached. The complete assembly is cleaned for oxygen service and is 100% helium leak checked. Additionally, the EXB undergoes multiple flow and function tests to ensure the highest level of purity and durability.
Available with Dursan® LS inert and anti-corrosive technology that provides superior corrosive resistance versus exotic metals in highly acidic or caustic applications, the AURA EXB back pressure regulator is the choice for accurate and reliable excess pressure control.

EXC Series
Compact Single Stage Pressure Reducing Regulator

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EXC Operating/Maintenance Manual

The AURA EXC is a general purpose regulator that provides accurate and reliable pressure control of gases and liquids up to inlets of 5500 psig where space is at a premium. AURA’s encapsulated seat design consolidates the numerous moving internal components of a standard regulator into one single piece, allowing for ease of maintenance and minimizing potential failure points. Protected by a 10-micron 360° filter, the encapsulated seat provides significantly more filtration of impurities than the standard pressed-in disk. The encapsulated seat also filters damaging particles from all inlet ports rather than just the pipeline port. Available with multiple seat materials and orifice sizes, the EXC’s capsule ensures optimum performance in any application worldwide.
The EXC’s ultra-compact design minimizes weight and footprint to allow for easy integration into a system or cabinet. The all metal construction ensures long life cycle in harsh environments. The AURA EXC is assembled in a Class 100 clean room as a complete assembly with all gauges, fittings, and valves attached. The complete assembly is cleaned for oxygen service and is 100% helium leak checked. Additionally, the EXC undergoes multiple flow and function tests to ensure the highest level of purity and durability.
Available with Dursan® LS inert and anti-corrosive technology that provides superior corrosive resistance versus exotic metals in highly acidic or caustic applications, the EXC is an economical choice for applications requiring compact components.

EXD Series
Automatic Differential Switchover

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EXD Operating/Maintenance Manual

The AURA EXD is an automatic switchover system designed to provide a continuous supply of high purity gas for inlet pressures up to 3000 psig. The integral EX1 line regulator provides consistent outlet pressures. AURA’s encapsulated seat design consolidates the numerous moving internal components of a standard regulator into one single piece, allowing for ease of maintenance and minimizing potential failure points. Protected by a 10-micron 360° filter, the encapsulated seat provides significantly more filtration of impurities than the standard pressed-in disk. The encapsulated seat also filters damaging particles from all inlet ports rather than just the pipeline port.
AURA’s proprietary machining process yields surface finishes of 4-25 Ra designed to reduce corrosion. The optional inlet purge or shutoff valve assemblies require minimal connections, reducing potential leak paths and internal volume. With its minimal internal volume, the EXD allows less gas to be used while purging. The EXD’s regulators are assembled in a Class 100 clean room while the complete EXD assembly is 100% helium leak checked and cleaned for oxygen service. Additionally, the EXD undergoes multiple flow and function tests to meet the harsh demands and rugged environments of any application worldwide. The AURA EXD allows for maximum flexibility and superior functionality as the engineer’s first choice for an uninterrupted supply of high purity gases.

EXF Series
High-Flow Single Stage Pressure Reducing Regulator

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EXF Operating/Maintenance Manual

The AURA EXF is designed to provide primary control of high flow gases and liquids at delivery pressures up to 250 psig. The EXF’s balanced stem seat design enables the use of larger orifices and seat sizes to accommodate higher flow rates. In addition, it eliminates the need for spring assisted shutoff of the inlet stream so fluctuations in outlet pressure are minimized. AURA’s dual surface diaphragm also provides sensitive pressure control even at low pressures while the EXF’s large .8 orifice size and ½” process ports allow for maximum flow.
AURA’s proprietary machining process yields surface finishes of 4-25 Ra designed to reduce corrosion. With its minimal internal volume, the EXF also allows less gas to be used while purging. Each EXF regulator is assembled in a Class 100 clean room as a complete assembly with all gauges, valves, and fittings attached. The complete assembly is 100% helium leak checked and cleaned for oxygen service. Additionally, the EXF undergoes multiple flow and function tests to meet the harsh demands and rugged environment of any application worldwide
For highly acidic or caustic applications, AURA’s Dursan® LS inert and anti-corrosive technology provides exceptional corrosion resistance and performance as a superior choice versus exotic metals or passivated surfaces. Combined with AURA’s balanced stem seat design, the EXF provides the functionality and flexibility that engineers depend upon for high flow applications.

EXH Series
High Pressure Single Stage Reducing Regulator

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The AURA EXH series incorporates a self-relieving valve that enables full range adjustment in closed looped systems. Unlike other designs, the AURA EXH utilizes high yield strength materials to ensure long life on load bearing components. These materials allow repeated adjustment without binding or failure for applications up to 6,000 psi. EXH’s Capsule^® seat design ensures seat reliability under harsh conditions. Seat failure due to repetitive loading is eliminated by the Capsule^®’s positive stop design.

Available in nickel plated brass and 316L make the EXH an economical choice for high pressure charging or test bench applications in the aerospace, hydrostatic, and oil field industries.

EXS Sub-Atmospheric
Single Stage Pressure Reducing Regulator

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EXS Operating/Maintenance Manual

The AURA EXS is a precision single stage regulator designed to provide control under sub-atmospheric conditions in addition to low flow positive pressure applications. The proprietary hybrid spring design works in tandem with the EXS’s exclusive oversized dual surface diaphragm, allowing precision pressure control under vacuum and positive pressure from 0 psia to 100 psig. AURA’s encapsulated seat design consolidates the numerous moving internal components of a standard regulator into one single piece, allowing for ease of maintenance and minimizing potential failure points. Protected by a 10-micron 360° filter, the encapsulated seat provides significantly more filtration of impurities than the standard pressed-in disk. The encapsulated seat also filters damaging particles from all inlet ports rather than just the pipeline port.
Each EXS regulator is assembled in a Class 100 clean room as a complete assembly with all gauges, valves, and fittings attached. The complete assembly is 100% helium leak checked and cleaned for oxygen service. Additionally, the EXS undergoes multiple flow and function tests to meet the harsh demands and rugged environment of any application worldwide
The EXS is available with Dursan® LS inert and anti-corrosive technology that provides superior corrosive resistance to exotic metals in highly acidic or caustic applications, making the EXS the engineer’s ideal choice for sub-atmospheric and low flow applications.

EXT High Temperature
Single Stage Pressure Reducing Regulator

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EXT Operating/Maintenance Manual

The AURA EXT series is designed to control the pressure of gases and liquids at elevated temperatures and ambient process environments as high as 500°F. AURA’s encapsulated seat design consolidates the numerous moving internal components of a standard regulator into one single piece, allowing for ease of maintenance and minimizing potential failure points. Protected by a 10-micron 360° filter, the encapsulated seat provides significantly more filtration of impurities than the standard pressed-in disk. The encapsulated seat also filters damaging particles from all inlet ports rather than just the pipeline port.
AURA’s proprietary machining process yields surface finishes of 4-25 Ra designed to reduce corrosion. With its minimal internal volume, the EXT also allows less gas to be used while purging. Each EXT regulator is completely assembled with all fittings attached and is 100% helium leak checked. Additionally, the EXT undergoes multiple flow and function tests to meet the harsh demands and rugged environment of any application worldwide.
The EXT is available with Dursan® LS inert and anti-corrosive technology that provides superior corrosive resistance versus exotic metals in highly acidic or caustic applications. Combined with AURA’s heat resistant design, the EXT is the flexible and reliable choice in high temperature applications.

EXV Vaporizing Regulators

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EXV Electrically Heated Operating/Maintenance Manual

The AURA EXV provides steady and reliable heat to vaporize and maintain gas phase of samples for analysis. AURA’s encapsulated seat design consolidates the numerous moving internal components of a standard regulator design into one single piece, allowing for ease of maintenance and minimizing potential failure points. Protected by a 10-micron 360° filter, the encapsulated seat provides significantly more filtration of impurities than the standard pressed-in disk. The encapsulated seat also filters damaging particles from all inlet ports rather than just the pipeline port. The EXV's proprietary labyrinth style flow path provides steady and reliable heat. Unlike a wire wrapped design, the EXV keeps the sample in contact with the heated surface longer as it traces its way through the large orifice flow path. This feature minimizes sample condensation as it travels through the regulator and across the pressure drop of the seat.

AURA’s proprietary machining process enables metal to metal seals to ensure the highest leak integrity available and yields surface finishes of 4-25 Ra designed to reduce corrosion. Each EXV regulator is 100% helium leak checked and undergoes multiple flow and function tests to ensure the highest levels of durability and performance.

The steam-heated version is also available with Dursan® LS inert and anti-corrosive technology that provides superior corrosive resistance versus exotic metals in highly acidic or caustic applications, making the EXV the right choice for vaporizing applications.

EXZ Sub-Atmospheric
Back Pressure Regulator

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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® LS 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.

EXPVD Diaphragm Valve

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The AURA EXPVD Series diaphragm valve provides primary flow control in high-purity or corrosive gas systems. The packless, springless design enables compatibility in high-purity systems and extended lifecycle, while the Elgiloy diaphragm increases accuracy and repeatability even under harsh process conditions. The configurable inlet and outlets allow for easy installation and drop in replacement.

AURA’s proprietary machining process enables the highest surface finish available in order to reduce corrosion. The EXPVD diaphragm valve is built as a complete assembly with all fittings and peripherals installed. The completed assembly is clean for oxygen service and is 100% helium leak checked. Additionally the diaphragm valve undergoes multiple flow and function tests. Available with Dursan® LS inert and anti-corrosive technology that provides superior corrosion resistance versus exotic metals in highly acidic and caustic applications, the AURA diaphragm valve ensures the highest level of purity and durability.

Deep Purge

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The AURA Deep Purge incorporates a unique snorkel tube design which forces the purge gas all the way back through the inlet connection to the cylinder valve cavity assuring virtual zero dead space purging. The Deep Purge may be used to purge the entire regulator body or just the cylinder connection at the time of cylinder change. The Deep Purge performs a positive displacement purge of the system.

Dursan LS Products

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AURA’s innovative Dursan LS products lower the overall cost of critical applications in harsh environments through significantly better corrosion resistance than traditional metals such as stainless steel or exotic alloys. Dursan LS is produced by bonding a proprietary blend of carbon and silicon to the crystal structure of 316L stainless steel, making it part of the base metal unlike coatings or passivation. As a result, Dursan LS is an extremely flexible, chemically inert, and wear resistant material that provides over 200 times the corrosion resistance of stainless steel in both highly caustic and highly acidic applications.

Flexible Hoses

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The EXPH Series flexible hoses are intended for use in systems where a flexible connection is preferable to the use of rigid tubing. Most commonly, flexible hoses are used as hoses to connect cylinders to wall-mounted regulators or manifold headers.

AURA 49X - Single Stage Ultra-High Pressure Reducing Regulator

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The AURA 49X Series regulators are intended for primary pressure control of non-corrosive gases at a maximum inlet pressure of 6000 PSIG. Available in either chrome-plated brass or 316L stainless steel, these regulators are used in applications such as laboratory research and development, chemical manufacturing, pharmaceutical manufacturing and gauge calibration. With both front and rear panel-mounting options included, combined with AURA's encapsulated seat design, the 49X Series provides the flexibility and reliability for critical high pressure applications.