{"id":1456,"date":"2013-12-20T14:56:17","date_gmt":"2013-12-20T14:56:17","guid":{"rendered":"http:\/\/equilibar.conscioweb.com\/?page_id=1456"},"modified":"2025-06-09T17:08:49","modified_gmt":"2025-06-09T21:08:49","slug":"high-precision-vacuum-regulators","status":"publish","type":"page","link":"https:\/\/www.equilibar.com\/ko\/vacuum-regulators\/high-precision-vacuum-regulators\/","title":{"rendered":"Precision Vacuum Regulators for Lower Flow Rates"},"content":{"rendered":"<div class=\"grid\"><div class=\"c-two-third \"> <p>Equilibar precision vacuum regulators (EVR) are designed specifically to control a highly stable inlet pressure across widely varying input conditions. The EVR maintains tight control despite variation in supply vacuum or changes in flow rate. Equilibar precision vacuum regulators work differently than traditional vacuum control valve designs. They use a flexible diaphragm as the only moving part. This diaphragm is used to directly seal against the internal valve orifices, eliminating the &#8220;stiction&#8221; commonly found in traditional vacuum control valves that rely on dynamic O-ring or wiper type seals. The Equilibar design is frictionless and can control vacuum with very high resolution. Learn more about <a href=\"https:\/\/www.equilibar.com\/back-pressure-regulators\/how-it-works\/\">how they work.<\/a> <\/p> <p>Equilibar lower flow precision vacuum regulators are available in sizes ranging from 1\/4&#8243; to 1&#8243; with material options of stainless steel 316\/316L, anodized aluminum or PVC depending on the application requirements for temperature and chemical resistance. Each EVR is delivered with a manual pilot setpoint regulator for convenient knob adjustment.<\/p> <ul> <li>For larger vacuum regulator sizes, see our <a href=\"https:\/\/www.equilibar.com\/vacuum-regulators\/high-flow-vacuum-valves\/standard-high-flow-vacuum-valves\/\">Precision High Flow Vacuum Valves<\/a> page<\/li> <li>For computer automated vacuum regulators, see our <a href=\"\/vacuum-regulators\/electronic-vacuum-regulators\/\">Electronic Vacuum Regulators<\/a> page<\/li> <\/ul> <p style=\"text-align: center;\"><div class=\"button-divider\"><span><span class=\"helper-1\"><\/span><span class=\"helper-2\"><\/span><a id=\"button-counter-1\" class=\"button medium type-divider\" href=\"\/contact\/\" >Request A Quote<\/a><\/span><\/div><\/p> <\/div> <div class=\"c-one-third \"> <p>&nbsp;<\/p> <div style=\"width: 230px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"\/images\/precision-vacuum-regulator.jpg\" alt=\"Precision Vacuum Regulators\" width=\"220\" height=\"238\" \/><p class=\"wp-caption-text\">1\/2&#8243; EVR-GDS4 with Manual Pilot Setpoint Adjuster<\/p><\/div> <p style=\"text-align: left;\"><\/div><\/div><div class=\"grid\"><div class=\"c-two-third \"> <p style=\"text-align: left;\">Information about lower flow EVR series options is detailed below. <a href=\"https:\/\/www.equilibar.com\/contact\/\">Contact an applications engineer<\/a> for more assistance. <\/div><\/p> <div class=\"c-one-third \"> <div> <a href=\"\/wp-content\/uploads\/2013\/12\/EVR-GS-Dimensional-Schematic.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-2342 size-full\" src=\"\/wp-content\/uploads\/2013\/12\/EVR-GS-Dimensional-Schematic.gif\" alt=\"Drawing of a precision vacuum regulator\" width=\"199\" height=\"121\" \/><\/a> <\/div><\/div><\/div> <h3>Metal Vacuum Regulator Details<\/h3>  <div class=\"table-wrapper\"><table class=\"simple\" width=\"600\"> <thead> <tr> <th rowspan=\"2\" valign=\"top\" width=\"77\">Model<\/th> <th rowspan=\"2\" valign=\"top\" width=\"53\">Inlet \/ Outlet Port<br \/> inch (DN)<\/th> <th rowspan=\"2\" valign=\"top\" width=\"75\">Reference Port<\/th> <th rowspan=\"2\" valign=\"top\" width=\"71\">Std. Body Materials<\/th> <th valign=\"top\" width=\"40\">Diameter (Dim A)<\/th> <th valign=\"top\" width=\"40\">Height* (Dim B)<\/th> <th colspan=\"2\" valign=\"top\" width=\"94\">Cv Range (Precision)<\/th> <th colspan=\"2\" valign=\"top\" width=\"117\">Available End Fittings<\/th> <\/tr> <tr> <td style=\"text-align: center;\" colspan=\"2\" valign=\"top\" width=\"79\">inch (mm)<\/td> <td valign=\"top\" width=\"54\">Min<\/td> <td valign=\"top\" width=\"40\">Max<\/td> <td valign=\"top\" width=\"48\">Std<\/td> <td valign=\"top\" width=\"69\">Available<\/td> <\/tr> <\/thead> <tbody> <tr> <td valign=\"top\" width=\"77\">EVR-GSD2<\/td> <td valign=\"top\" width=\"53\">\u00bc&#8221; (8)<\/td> <td rowspan=\"5\" width=\"75\">1\/8&#8243;<\/td> <td rowspan=\"5\" valign=\"top\" width=\"71\">SS316 (SS) Anodized Aluminum (AA)<\/td> <td valign=\"top\" width=\"40\">3.0 (76)<\/td> <td valign=\"top\" width=\"40\">1.3 (33)<\/td> <td valign=\"top\" width=\"54\">1E-3<\/td> <td valign=\"top\" width=\"40\">1.2<\/td> <td rowspan=\"5\" width=\"48\">NPT<\/td> <td rowspan=\"5\" valign=\"top\" width=\"69\">Vacuum Flange BSPP; SAE<\/td> <\/tr> <tr> <td valign=\"top\" width=\"77\">EVR-GSD3<\/td> <td valign=\"top\" width=\"53\">3\/8&#8243; (10)<\/td> <td valign=\"top\" width=\"40\">3.5 (89)<\/td> <td valign=\"top\" width=\"40\">1.4 (36)<\/td> <td valign=\"top\" width=\"54\">1E-3<\/td> <td valign=\"top\" width=\"40\">1.8<\/td> <\/tr> <tr> <td valign=\"top\" width=\"77\">EVR-GSD4<\/td> <td valign=\"top\" width=\"53\">\u00bd&#8221; (15)<\/td> <td valign=\"top\" width=\"40\">4.5 (114)<\/td> <td valign=\"top\" width=\"40\">1.6 (41)<\/td> <td valign=\"top\" width=\"54\">1E-3<\/td> <td valign=\"top\" width=\"40\">3.2<\/td> <\/tr> <tr> <td valign=\"top\" width=\"77\">EVR-GSD6<\/td> <td valign=\"top\" width=\"53\">\u00be&#8221; (20)<\/td> <td valign=\"top\" width=\"40\">6 (152)<\/td> <td valign=\"top\" width=\"40\">2.0 (51)<\/td> <td valign=\"top\" width=\"54\">1E-2<\/td> <td valign=\"top\" width=\"40\">5.5<\/td> <\/tr> <tr> <td valign=\"top\" width=\"77\">EVR-GSD8<\/td> <td valign=\"top\" width=\"53\">1&#8243; (25)<\/td> <td valign=\"top\" width=\"40\">7 (178)<\/td> <td valign=\"top\" width=\"40\">2.6 (66)<\/td> <td valign=\"top\" width=\"54\">1E-2<\/td> <td valign=\"top\" width=\"40\">8.5<\/td> <\/tr> <tr> <td colspan=\"10\"><em><small>*Height does not include 3&#8243; manual set point regulator.<\/small><\/em><\/td> <\/tr> <\/tbody> <\/table><\/div>  <h3>PVC Vacuum Regulator Details<\/h3>  <div class=\"table-wrapper\"><table class=\"simple\" width=\"600\"> <thead> <tr> <th rowspan=\"2\" valign=\"top\" width=\"77\">Model<\/th> <th rowspan=\"2\" valign=\"top\" width=\"53\">Inlet \/ Outlet Port<br \/> inch (DN)<\/th> <th rowspan=\"2\" valign=\"top\" width=\"75\">Reference Port<\/th> <th rowspan=\"2\" valign=\"top\" width=\"71\">Std. Body Materials<\/th> <th valign=\"top\" width=\"40\">Diameter (Dim A)<\/th> <th valign=\"top\" width=\"40\">Height* (Dim B)<\/th> <th colspan=\"2\" valign=\"top\" width=\"94\">Cv Range (Precision)<\/th> <th colspan=\"2\" valign=\"top\" width=\"117\">Available End Fittings<\/th> <\/tr> <tr> <td style=\"text-align: center;\" colspan=\"2\" valign=\"top\" width=\"79\">(inch)<\/td> <td valign=\"top\" width=\"54\">Min<\/td> <td valign=\"top\" width=\"40\">Max<\/td> <td valign=\"top\" width=\"48\">Std<\/td> <td valign=\"top\" width=\"69\">Available<\/td> <\/tr> <\/thead> <tbody> <tr> <td valign=\"top\" width=\"77\">EVR-GSD2<\/td> <td valign=\"top\" width=\"53\">\u00bc&#8221; (8)<\/td> <td rowspan=\"5\" width=\"75\">1\/8&#8243;<\/td> <td rowspan=\"5\" valign=\"top\" width=\"71\">PVC<\/td> <td valign=\"top\" width=\"40\">3.3 (83)<\/td> <td valign=\"top\" width=\"40\">1.5 (38)<\/td> <td valign=\"top\" width=\"54\">1E-3<\/td> <td valign=\"top\" width=\"40\">1.2<\/td> <td rowspan=\"5\" width=\"48\">NPT<\/td> <td rowspan=\"5\" valign=\"top\" width=\"69\">Vacuum Flange BSPP; SAE<\/td> <\/tr> <tr> <td valign=\"top\" width=\"77\">EVR-GSD3<\/td> <td valign=\"top\" width=\"53\">3\/8&#8243; (10)<\/td> <td valign=\"top\" width=\"40\">3.8 (95)<\/td> <td valign=\"top\" width=\"40\">1.6 (41)<\/td> <td valign=\"top\" width=\"54\">1E-3<\/td> <td valign=\"top\" width=\"40\">1.8<\/td> <\/tr> <tr> <td valign=\"top\" width=\"77\">EVR-GSD4<\/td> <td valign=\"top\" width=\"53\">\u00bd&#8221; (15)<\/td> <td valign=\"top\" width=\"40\">4.8 (121)<\/td> <td valign=\"top\" width=\"40\">1.8 (46)<\/td> <td valign=\"top\" width=\"54\">1E-3<\/td> <td valign=\"top\" width=\"40\">3.2<\/td> <\/tr> <tr> <td valign=\"top\" width=\"77\">EVR-GSD6<\/td> <td valign=\"top\" width=\"53\">\u00be&#8221; (20)<\/td> <td valign=\"top\" width=\"40\">6.3 (159)<\/td> <td valign=\"top\" width=\"40\">2.3 (57)<\/td> <td valign=\"top\" width=\"54\">1E-2<\/td> <td valign=\"top\" width=\"40\">5.5<\/td> <\/tr> <tr> <td valign=\"top\" width=\"77\">EVR-GSD8<\/td> <td valign=\"top\" width=\"53\">1&#8243; (25)<\/td> <td valign=\"top\" width=\"40\">7.3 (184)<\/td> <td valign=\"top\" width=\"40\">2.9 (74)<\/td> <td valign=\"top\" width=\"54\">1E-2<\/td> <td valign=\"top\" width=\"40\">8.5<\/td> <\/tr> <tr> <td colspan=\"10\"><em><small>*Height does not include 3&#8243; manual set point regulator.<\/small><\/em><\/td> <\/tr> <\/tbody> <\/table><\/div> <br \/> <div class=\"divider type-simple\"><\/div><\/p> <h3>Other Equilibar Vacuum Control Products:<\/h3> <div class=\"product-include vr-squares\">\r\n<div class=\"grid\"><div class=\"grid\"><div class=\"c-one-fifth \"><span id=\"frame-counter-1\" class=\"frame type-simple aligncenter\">\n\t<span class=\"decorator\">\n\t\t<span class=\"outer\">\n\t\t\t<span class=\"inner\">\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"http:\/\/www.equilibar.com\/images\/stainless-steel-vacuum-regulator_120.jpg\" alt=\"image of equilibar high precision vacuum regulator EVR with mechanical pilot\" width=\"128\" height=\"128\" \/><a href=\"http:\/\/www.equilibar.com\/vacuum-regulators\/high-precision-vacuum-regulators\/\">High Precision Vacuum Regulators<\/a>\r\n1\/4\" to 1\"\r\n0 - 30 inHg \/ 762 mm Hg\n\t\t\t\t<span class=\"indicator indicator-document\"><span><\/span><span><\/span><\/span>\n\t\t\t<\/span>\t\t\t\n\t\t<\/span>\n\t<\/span>\n<\/span><\/div><div class=\"c-one-fifth \"><span id=\"frame-counter-2\" class=\"frame type-simple aligncenter\">\n\t<span class=\"decorator\">\n\t\t<span class=\"outer\">\n\t\t\t<span class=\"inner\">\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" style=\"line-height: 1.5em;\" src=\"http:\/\/www.equilibar.com\/images\/PVC-vacuum-regulating-valve.jpg\" alt=\"image of Equilibar High Flow Vacuum Regulator with mechanical vacuum pilot regulator\" width=\"225\" height=\"225\" \/><a href=\"https:\/\/www.equilibar.com\/vacuum-regulators\/high-flow-vacuum-valves\/standard-high-flow-vacuum-valves\/\">High Flow Vacuum Valves<\/a>\r\n1.5\" to 4\"\r\n0 - 30 inHg \/ 762 mm Hg\n\t\t\t\t<span class=\"indicator indicator-document\"><span><\/span><span><\/span><\/span>\n\t\t\t<\/span>\t\t\t\n\t\t<\/span>\n\t<\/span>\n<\/span><\/div><div class=\"c-one-fifth \"><span id=\"frame-counter-3\" class=\"frame type-simple aligncenter\">\n\t<span class=\"decorator\">\n\t\t<span class=\"outer\">\n\t\t\t<span class=\"inner\">\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-39418 size-full\" src=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2023\/12\/EVR-GSD8-QPV-M-300by300-Copy.jpg\" alt=\"photo of an Equilibar vacuum regulator with electronic pilot regulator for automation\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2023\/12\/EVR-GSD8-QPV-M-300by300-Copy.jpg 300w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2023\/12\/EVR-GSD8-QPV-M-300by300-Copy-150x150.jpg 150w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2023\/12\/EVR-GSD8-QPV-M-300by300-Copy-50x50.jpg 50w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2023\/12\/EVR-GSD8-QPV-M-300by300-Copy-100x100.jpg 100w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2023\/12\/EVR-GSD8-QPV-M-300by300-Copy-47x47.jpg 47w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><a href=\"http:\/\/www.equilibar.com\/vacuum-regulators\/electronic-vacuum-regulators\/\">Electronic\r\nVacuum Regulators<\/a>\r\n1\/4\" to 1\"\r\n0 - 30 in Hg \/ 762 mm Hg\n\t\t\t\t<span class=\"indicator indicator-document\"><span><\/span><span><\/span><\/span>\n\t\t\t<\/span>\t\t\t\n\t\t<\/span>\n\t<\/span>\n<\/span><\/div><div class=\"c-one-fifth \"><span id=\"frame-counter-4\" class=\"frame type-simple aligncenter\">\n\t<span class=\"decorator\">\n\t\t<span class=\"outer\">\n\t\t\t<span class=\"inner\">\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-39570 size-full\" src=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2023\/12\/EVR-BD16-QPV-300x300-1.jpg\" alt=\"photo of an Equilibar EVR-BD16 with an electronic pilot regulator\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2023\/12\/EVR-BD16-QPV-300x300-1.jpg 300w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2023\/12\/EVR-BD16-QPV-300x300-1-150x150.jpg 150w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2023\/12\/EVR-BD16-QPV-300x300-1-50x50.jpg 50w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2023\/12\/EVR-BD16-QPV-300x300-1-100x100.jpg 100w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2023\/12\/EVR-BD16-QPV-300x300-1-47x47.jpg 47w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><a href=\"https:\/\/www.equilibar.com\/vacuum-regulators\/electronic-vacuum-valves\/\">Larger Electronic\r\nVacuum Valves<\/a>\r\n1.5\" to 4\"\r\n0 - 30 in Hg \/ 762 mm Hg\r\n\n\t\t\t\t<span class=\"indicator indicator-document\"><span><\/span><span><\/span><\/span>\n\t\t\t<\/span>\t\t\t\n\t\t<\/span>\n\t<\/span>\n<\/span><\/div><div class=\"c-one-fifth \"><span id=\"frame-counter-5\" class=\"frame type-simple aligncenter\">\n\t<span class=\"decorator\">\n\t\t<span class=\"outer\">\n\t\t\t<span class=\"inner\">\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-17514\" src=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2018\/12\/vacuum-pilots-300x300.jpg\" alt=\"photo collage of vacuum pilot regulator\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.equilibar.com\/wp-content\/uploads\/2018\/12\/vacuum-pilots-300x300.jpg 300w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2018\/12\/vacuum-pilots-150x150.jpg 150w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2018\/12\/vacuum-pilots-50x50.jpg 50w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2018\/12\/vacuum-pilots-100x100.jpg 100w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2018\/12\/vacuum-pilots-47x47.jpg 47w, https:\/\/www.equilibar.com\/wp-content\/uploads\/2018\/12\/vacuum-pilots.jpg 375w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><a href=\"https:\/\/www.equilibar.com\/vacuum-regulators\/vacuum-pilot-regulators\">Vacuum\r\nPilot Regulators<\/a>\r\nmechanical, electronic\r\nand remote sensing\r\n\n\t\t\t\t<span class=\"indicator indicator-document\"><span><\/span><span><\/span><\/span>\n\t\t\t<\/span>\t\t\t\n\t\t<\/span>\n\t<\/span>\n<\/span><\/div><\/div><\/div>\r\n<\/div> <div class=\"grid\"><div class=\"c-two-third \"> <h3>Videos about Precision Vacuum Regulators<\/h3> <p>This video discusses the difference between a vacuum breaker and a direct vacuum regulator, like the Equilibar. It shows how the Equilibar direct vacuum regulator maintains high accuracy even as the system flow rate varies.<\/p> <p> <a href=\"https:\/\/www.youtube.com\/watch?v=R8OaIacQH8M&amp;index=2&amp;list=PLhpTTpGLIbzoyJsNI66uXg2k-17EtwDbz\">Follow this link<\/a> to watch a video about vacuum control for <strong>high flow rates.<\/strong><\/p> <\/div> <div class=\"c-one-third \"> <p><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/DZe61UyL0lM\" width=\"auto\" height=\"auto\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/div><\/div> ","protected":false},"excerpt":{"rendered":"<p>Equilibar high precision vacuum regulators respond immediately and can control more precisely than a vacuum breaker and most other traditional vacuum valves. <\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1429,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-sidebar-left.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-1456","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>Precision Vacuum Regulators for Accuracy and Precision | Equilibar<\/title>\n<meta name=\"description\" content=\"Equilibar precision vacuum regulators are designed specifically to control a highly stable inlet pressure across widely varying input conditions.\" \/>\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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