{"id":5035,"date":"2015-08-26T14:26:29","date_gmt":"2015-08-26T14:26:29","guid":{"rendered":"http:\/\/www.equilibar.com\/?page_id=5035"},"modified":"2022-02-22T15:17:44","modified_gmt":"2022-02-22T19:17:44","slug":"low-pressure-relieving-regulator","status":"publish","type":"page","link":"https:\/\/www.equilibar.com\/ja\/low-pressure-control\/low-pressure-relieving-regulator\/","title":{"rendered":"Low Pressure Relieving Regulator"},"content":{"rendered":"<p><div class=\"grid\"><div class=\"c-two-third \">Equilibar offers a regulator that controls pressure\u00a0in the millibar range with extremely high sensitivity and stability.<\/p> <p>Unlike traditional pressure reducing regulators that open to increase pressure, these relieving-type or backpressure-type regulators open up to reduce\u00a0pressure.<\/p> <p>Equilibar&#8217;s relieving back pressure regulators are dome-loaded and use a 1:1\u00a0air pilot pressure on their dome to communicate the set-point. The set-point signal can be communicated by either manual or electro-pneumatic pilot regulator.<\/p> <p>Relieving pressure regulators are available\u00a0in a wide range of sizes:<\/p> <ul> <li>1\/4&#8243; to 1&#8243; &#8211; <a href=\"\/back-pressure-regulators\/general-service-back-pressure-regulators\/\"> GS Series back pressure regulators<\/a> <\/li> <li>1.5&#8243; to 4&#8243; &#8211; <a href=\"https:\/\/www.equilibar.com\/back-pressure-regulators\/back-pressure-valve\/bd-series-back-pressure-valves\/\">BD Series back pressure valves<\/a> <\/li> <li>4&#8243; to 6&#8243; &#8211; <a href=\"\/back-pressure-regulators\/back-pressure-valve\/hv-series-max-flow-low-pressure-valve\/\">HV Series back pressure\u00a0valves<\/a> <\/li> <\/ul> <p>The following chart illustrates the ability of the Equilibar back pressure regulator to control in the range of 3 inWC (inches of H2O).<\/p> <p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-5036 size-full\" src=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2015\/08\/Low-Pressure-BPR-Performance-GS2.gif\" alt=\"Low Pressure BPR Performance GS2\" width=\"326\" height=\"243\" \/><\/p> <p>&nbsp;<\/p> <p>&nbsp;<\/p> <p>&nbsp;<\/p> <h2><\/h2> <h2><\/h2> <h2><\/h2> <p>&nbsp;<\/p> <h2>Pilot Regulator Options for Low Pressure Control<\/h2>  <div class=\"table-wrapper\"><table class=\"simple\" width=\"339\"> <tbody> <tr> <td width=\"83\"><\/td> <td colspan=\"2\" width=\"128\">Manual Control<\/td> <td colspan=\"2\" width=\"128\">Computer Control<\/td> <\/tr> <tr> <td width=\"83\">Product<\/td> <td colspan=\"2\" width=\"128\">LPR2<\/td> <td colspan=\"2\" width=\"128\">QPV<\/td> <\/tr> <tr> <td width=\"83\"><\/td> <td width=\"64\">in H2O<\/td> <td width=\"64\">millibar(g)<\/td> <td width=\"64\">in H2O<\/td> <td width=\"64\">millibar(g)<\/td> <\/tr> <tr> <td width=\"83\">Lowest Pressure Range<\/td> <td width=\"64\">0.5 to 7<\/td> <td width=\"64\">.75 to 17<\/td> <td width=\"64\">0 &#8211; 4<\/td> <td width=\"64\">0 &#8211; 10<\/td> <\/tr> <tr> <td width=\"83\">Sensitivity<\/td> <td width=\"64\">0.02<\/td> <td width=\"64\">0.05<\/td> <td width=\"64\">0.01<\/td> <td width=\"64\">0.03<\/td> <\/tr> <tr> <td width=\"83\">Other Pressure Ranges<\/td> <td width=\"64\">1 &#8211; 10<br \/> 1 &#8211; 28<\/td> <td width=\"64\">2.5 &#8211; 25<br \/> 2.5 &#8211; 70<\/td> <td width=\"64\">1 &#8211; 10<br \/> 1 &#8211; 28<\/td> <td width=\"64\">2.5 &#8211; 25<br \/> 2.5 &#8211; 70<\/td> <\/tr> <\/tbody> <\/table><\/div>  <p>&nbsp;<\/p> <h3>Selected Applications for Low Pressure Relieving Valves<\/h3>  <div class=\"table-wrapper\"><table class=\"simple\"> <tbody> <tr> <td width=\"319\">Application<\/td> <td width=\"319\">Schematic<\/td> <\/tr> <tr> <td width=\"319\"> <a href=\"\/application\/tank-blanketing-or-padding\/\">Pressure Regulator for Tank Blanketing or Padding<\/a> <\/td> <td width=\"319\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"\/images\/Aggressive-Chemical-Fill.gif\" alt=\"Tank blanketing relieving valve\" width=\"213\" height=\"158\" \/><\/td> <\/tr> <tr> <td width=\"319\"> <a href=\"\/application\/extrusion-pressure-control\/\">Controlling Pressure in an Extrusion<\/a> <\/td> <td width=\"319\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"\/images\/Vacuum-Extrusion-Schematic.gif\" alt=\"relieving regulator for extrusion pressure control\" width=\"224\" height=\"141\" \/><\/td> <\/tr> <tr> <td width=\"319\"> <a href=\"\/application\/rupture-disc-protection\/\">Protecting Rupture Discs using Back Pressure Regulators<\/a> <\/td> <td width=\"319\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"\/wp-content\/uploads\/2015\/01\/Rupture-Disc-Protection-300x246.gif\" alt=\"protecting rupture disk with relieving regulator\" width=\"218\" height=\"175\" \/><\/td> <\/tr> <tr> <td width=\"319\"> <a href=\"\/application\/altitude-simulation-chamber\/\">Simulating Changes in Altitude using Equilibar Vacuum Regulators<\/a> <\/td> <td width=\"319\"> <p><div style=\"width: 251px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"\/images\/altitude-simulation-schematic.gif\" alt=\"\" width=\"241\" height=\"151\" \/><p class=\"wp-caption-text\">altitude simulation chamber pressure control<\/p><\/div><\/td> <\/tr> <tr> <td width=\"319\"> <a href=\"\/application\/absolute-pressure-control\/\">Controlling Pressure Referenced to Absolute Pressure Units<\/a> <\/td> <td width=\"319\"><\/td> <\/tr> <tr> <td width=\"319\"><\/td> <td width=\"319\"><\/td> <\/tr> <\/tbody> <\/table><\/div>  <p>&nbsp;<\/p> <\/div><div class=\"c-one-third \"> <div id=\"attachment_3572\" style=\"width: 218px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3572\" class=\"wp-image-3572 size-full\" src=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2015\/04\/2-set-point-options.gif\" alt=\"2 set point options\" width=\"208\" height=\"246\" \/><p id=\"caption-attachment-3572\" class=\"wp-caption-text\">The Equilibar back pressure regulator relieves flow to control pressure. It has a 1:1 dome-loaded design, and can be piloted by either a manual or electronic pressure regulator<\/p><\/div> <div id=\"attachment_5037\" style=\"width: 229px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5037\" class=\"wp-image-5037 size-full\" src=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2015\/08\/low-pressure-relieving-regulator-electronic.jpg\" alt=\"Relieving back pressure regulator can be used to control liquids or gases in the very low pressure range. Shown with precision electronic pressure regulator \" width=\"219\" height=\"257\" \/><p id=\"caption-attachment-5037\" class=\"wp-caption-text\">Relieving back pressure regulator can be used to control liquids or gases in the very low pressure range. Shown with precision electronic pressure regulator<\/p><\/div> <p>&nbsp;<\/p> <div id=\"attachment_3564\" style=\"width: 230px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3564\" class=\"wp-image-3564\" src=\"\/wp-content\/uploads\/2015\/04\/HV-Back-Pressure-Regulators.jpg\" alt=\"HV Back Pressure Regulators\" width=\"220\" height=\"200\" \/><p id=\"caption-attachment-3564\" class=\"wp-caption-text\">The Equilbar HV32 relieving back pressure regulator is available in 2&#8243;, 4&#8243;, and 6&#8243; sizes for precise low pressure control at high flow rates<\/p><\/div> <\/div><\/div><\/p> ","protected":false},"excerpt":{"rendered":"","protected":false},"author":5,"featured_media":0,"parent":129,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-5035","page","type-page","status-publish","hentry","btp_relation_tag-s-techarticle"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Low Pressure Relieving Regulator -<\/title>\n<meta name=\"description\" content=\"Equilibar manufactures low pressure relieving regulators for difficult application requiring low pressure control accuracies not available in traditional...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.equilibar.com\/low-pressure-control\/low-pressure-relieving-regulator\/\" 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