{"id":4294,"date":"2015-05-19T18:45:28","date_gmt":"2015-05-19T18:45:28","guid":{"rendered":"http:\/\/www.equilibar.com\/?page_id=4294"},"modified":"2025-06-13T14:48:01","modified_gmt":"2025-06-13T18:48:01","slug":"supercritical-back-pressure-regulator","status":"publish","type":"page","link":"https:\/\/www.equilibar.com\/es\/back-pressure-regulators\/supercritical-back-pressure-regulator\/","title":{"rendered":"Supercritical Back Pressure Regulator"},"content":{"rendered":"<div class=\"grid\"><div class=\"c-two-third \"> <h2>Non-Clogging Supercritical Fluid Back Pressure Regulators<\/h2> <p>Equilibar is pleased to introduce the\u00a0<strong>blockage resistant<\/strong> BR Series back pressure regulators. This series is ideal for specialty applications, particularly supercritical CO2 (SCO2) extraction applications, but is also useful for any process in which clogging, blocking, or freezing could be an issue.<\/p> <p>This series integrates proprietary design features to help customers achieve precision control by reducing the Joule-Thomson effect of supercritical process fluids passing through the unit. 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, increasing O-ring lifetimes. This series has several custom fitting options, including an outlet flange, tube stub, or NPT fittings.<\/p> <p>Canadian Registration Number (CRN) certification is available for certain models for all territories and provinces. <a href=\"https:\/\/www.equilibar.com\/contact\/\">Contact us<\/a> for more information.<\/p> <p><center><a id=\"button-counter-1\" class=\"button medium type-simple\" href=\"\/contact\/\" >Request a Quote<\/a> <a id=\"button-counter-2\" class=\"button medium type-simple\" href=\"https:\/\/www.equilibar.com\/PDF\/Equilibar-B6R-Blockage_Resistant_and_Supercritical_CO2_Back_Pressure_Regulator.pdf\" >Download Brochure<\/a><\/center><\/p> <h3>Watch the BR regulate to a precise pressure while ice and oil flow through<\/h3> <p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/h7v1HSfe_i8\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p> <h3>Built to withstand the supercritical extraction environment<\/h3> <p>The BR Series is designed specifically to address the demands encountered when rapid cooling occurs as a supercritical gas expands during decompression.<\/p> <ul> <li>The shape of the internal passages prevents the accumulation of ice or viscous oils so the BR is free to regulate at the target setpoint.<\/li> <li>The body is CNC machined from premium stainless steel 316\/316L dual cert alloy bar stock.<\/li> <li>The diaphragm material options include polyimide, PTFE, and PEEK depending on the co-solvents used and the maximum temperatures reached.<\/li> <li>O-ring cavities are designed to limit the explosive decompression that occurs when the SCO2 permeates the O-ring material.<\/li> <li>O-ring material options include Buna-N, Viton, PTFE, and DuPont Kalrez depending on the application.<\/li> <\/ul> <h3>Using supercritical fluid as a pilot fluid<\/h3> <p>Equilibar back pressure regulators are designed to be controlled by a pilot fluid adjusted to setpoint using a pilot pressure regulator. When using an Equilibar BR Series regulator to control SCO2 process pressure, it is possible to use the SCO2 fluid as the pilot fluid, eliminating the need for an extra gas canister for the pilot fluid. This technique, &#8220;process pilot&#8221;, is demonstrated in the video below.<\/p> <p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/EdDn0fK9Njo\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><br \/> <\/div><br \/> <div class=\"c-one-third \"> <p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-11400 size-medium\" src=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2018\/07\/B6R-clipped-path-WEB-SQ3-300x300.jpg\" alt=\"photo of B6R supercritical back pressure regulator for product pages\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2018\/07\/B6R-clipped-path-WEB-SQ3-300x300.jpg 300w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2018\/07\/B6R-clipped-path-WEB-SQ3-150x150.jpg 150w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2018\/07\/B6R-clipped-path-WEB-SQ3-50x50.jpg 50w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2018\/07\/B6R-clipped-path-WEB-SQ3-100x100.jpg 100w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2018\/07\/B6R-clipped-path-WEB-SQ3-47x47.jpg 47w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2018\/07\/B6R-clipped-path-WEB-SQ3.jpg 616w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p> <p style=\"text-align: center;\"> <a href=\"https:\/\/www.equilibar.com\/product\/back-pressure-regulators\/b6r-supercritical-co2-back-pressure-regulator\/\"><em>B6R Supercritical Back Pressure Regulator<\/em><\/a> <\/p> <div id=\"attachment_4334\" style=\"width: 230px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4334\" class=\"wp-image-4334 size-full\" src=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2015\/05\/BR1-Tube-Stub_220.jpg\" alt=\"Supercritical Back Pressure Regulator for Fluid Extraction \" width=\"220\" height=\"272\" \/><p id=\"caption-attachment-4334\" class=\"wp-caption-text\"><a href=\"https:\/\/www.equilibar.com\/PDF\/Equilibar-B6R-Blockage_Resistant_and_Supercritical_CO2_Back_Pressure_Regulator.pdf\">Equilibar BR series<\/a> model B6RT2<br \/>with custom tube stub<br \/>connections option<\/p><\/div> <p>&nbsp;<\/p> <div id=\"attachment_4333\" style=\"width: 230px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4333\" class=\"wp-image-4333 size-full\" src=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2015\/05\/BR1-Supercritical-CO2-Regulator_220.jpg\" alt=\"Equilibar supercritical CO2 back pressure regulator with flange\" width=\"220\" height=\"254\" \/><p id=\"caption-attachment-4333\" class=\"wp-caption-text\">Equilibar Blockage Resistant BPR with flange option<\/p><\/div> <p>&nbsp;<\/p> <h3>Application Spotlight<\/h3> <ul> <li> <a href=\"\/application\/supercritical-extraction-batch-pressure-control\/\">Supercritical fluid batch extraction systems<\/a> <\/li> <li> <a href=\"https:\/\/www.equilibar.com\/application\/supercritical-fractionation-pressure-control\/\">Supercritical fractional separation<\/a> to\u00a0target multiple extracts from\u00a0a single batch<\/li> <li> <a href=\"\/application\/supercritical-co2\/\">Supercritical CO2 pressure control<\/a> <\/li> <li> <a href=\"https:\/\/www.equilibar.com\/product\/back-pressure-regulators\/b6r-supercritical-co2-back-pressure-regulator\/\">Supercritical CO2 in thermal evaporator<\/a> <\/li> <\/ul> <div id=\"attachment_2752\" style=\"width: 242px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2014\/05\/Pressure-Control-in-Supercritical-CO2-Application-for-Porous-Media-Research.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2752\" class=\"wp-image-2752 size-medium\" src=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2014\/05\/Supercritical-CO2-for-Porous-Media-Research-thumb-232x300.jpg\" alt=\"Case Study on Supercritical Carbon Dioxide pressure control\" width=\"232\" height=\"300\" srcset=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2014\/05\/Supercritical-CO2-for-Porous-Media-Research-thumb-232x300.jpg 232w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2014\/05\/Supercritical-CO2-for-Porous-Media-Research-thumb.jpg 447w\" sizes=\"auto, (max-width: 232px) 100vw, 232px\" \/><\/a><p id=\"caption-attachment-2752\" class=\"wp-caption-text\">Customer Case Study: Demanding Supercritical CO2 Service<\/p><\/div> <p>&nbsp;<\/p> <\/div><\/div><\/p> ","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":123,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-sidebar-left.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-4294","page","type-page","status-publish","hentry","btp_relation_tag-s-techarticle"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Supercritical CO2 Back Pressure Regulator | Equilibar Precision Control<\/title>\n<meta name=\"description\" content=\"This blockage resistant back pressure regulator is ideal for specialty applications, particularly supercritical back pressure CO2 extraction applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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