Pressure control is a vital element in supercritical fluid extraction processes, such as the extraction of supercritical carbon dioxide (SCO2). It is important that the pressure regulator is capable of also higher pressures, and the control valve should also be capable of handling multi-phase-flow as well higher temperatures and significant temperature fluctuations.
The BR Series has been designed to be all that. It is highly blockage resistant and a good fit for applications such as supercritical CO2-extraction (SCO2). This back pressure regulator is also applied in other processes where the prevention of clogging, blocking, or freezing is relevant.
The BR Series is based on Equilibar‘s patented technology and designed for precision pressure control, by a mechanism that reduces the so-called Joule-Thomson effect of supercritical fluids that pass through the regulator. As Equilibar describes it on the BR-product-page:
“A primary design feature in this regulator series is a downstream expansion cavity that provides a continuously increasing cross-sectional area to eliminate convergence points for ice buildup. Additionally, this large thermal mass provides increased heat transfer area to heat the outlet fluid through several different means. Lastly, this series has specially designed O-ring grooves to reduce stress during rapid decompression (…)”
This Equilibar back pressure regulator is truly unique in its performance. Check out the tabs on the left or contact usย if you want to know more.
With the decompression of SCO2 gases, the gas will expand and cause significant decrease of temperature. The units in the BR Series are engineered such that they can manage stable process control nevertheless:
Thanks to the capabilities of Equilibar back pressure regulators to be controlled by a pilot fluid with a pilot regulator, it is possible to use SCO2 as for pilot control, avoiding the use of a different (extra) pilot media.ย See video:
Main specifications of BR Series summarized For complete overview, please see the product brochure, installation & maintenance guide and drawings via the tabs on the left side of this table. Contact us if you cannot find what you are looking for! |
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Often used in | SupercriticalCO2 extraction, processes that encounter clogging or freezing of process media | |
Available models* | B6R2 | B6R3 |
* Customization possible | ||
Maximum operating pressure | 400 bar 6.000 PSI | 400 bar 6.000 PSI |
Flow coefficient (min-max Cv)* & turn down ratio | B6R2 1E-05…0,64 1:64.000 | B6R3 1E-05…0,64 1:64.000 |
MAOT in ยฐC | โค 150ยฐC with EPDM diaphragm โค 300ยฐC with Kalrez diaphragm |
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Port sizes | B6R2 1/4″ NPT | B6R3 3/8″ NPT |
Port thread options | Tube Stub Custom options available on request |
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Body & cap material standard | Stainless Steel 316/316L (1.4401/1.4404) | |
Diaphragm materials | Polyimide, Peek *Diaphragm thickness will be selected by our engineers based on your process parameters |
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O-ring materials | Kalrezยฎ Grade 7075/7090, EPDM | |
Options | Can be supplied including mounting brackets | |
Spare part kits and/or Rebuild kits optionally available See: Spare Parts and Maintenance |
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Electronic & manual pilot control options available See: How to pilot your back pressure regulator |
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