{"id":9832,"date":"2016-03-31T16:00:56","date_gmt":"2016-03-31T14:00:56","guid":{"rendered":"https:\/\/www.gok-blog.de\/2016\/03\/31\/how-does-a-prv-pressure-relief-valve-work\/"},"modified":"2026-06-12T11:39:55","modified_gmt":"2026-06-12T09:39:55","slug":"how-does-a-prv-pressure-relief-valve-work","status":"publish","type":"post","link":"https:\/\/www.gok-blog.de\/en\/how-does-a-prv-pressure-relief-valve-work\/","title":{"rendered":"How does a PRV pressure relief valve work?"},"content":{"rendered":"<p style=\"text-align: justify;\">The pressure relief valve is a safety device integrated into the pressure regulator. It discharges LPG into the environment as soon as the pressure exceeds the defined maximum value.<!--more--><\/p>\n<p style=\"text-align: justify;\">Either the PRV (<strong>P<\/strong>ressure <strong>R<\/strong>elief <strong>V<\/strong>alve) is the only safety device of the pressure regulator or it is combined with the OPSO (<strong>O<\/strong>ver-<strong>P<\/strong>ressure <strong>S<\/strong>hut <strong>O<\/strong>ff).<\/p>\n<h2><span class=\"ez-toc-section\" id=\"PRV_as_sole_safety_device\"><\/span>PRV as sole safety device<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"text-align: left;\">Dirt gets stuck to a narrow part of the pressure regulator.<\/li>\n<li style=\"text-align: left;\">The pressure rises continuously and exceeds the maximum permissible value.<\/li>\n<li style=\"text-align: left;\">The overpressure raises the diaphragm.<\/li>\n<li style=\"text-align: left;\">The position change of the diaphragm causes a gap to open at the valve lever.<\/li>\n<li style=\"text-align: left;\">The overpressure escapes from the ventilation opening in the cover of the pressure regulator.<\/li>\n<\/ul>\n<p><iframe title=\"Funktionsbeschreibung Niederdruckregler im Fahrzeug mit PRV\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/BylUJ5xPCzA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"PRV_combined_with_OPSO\"><\/span>PRV combined with OPSO<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>The OPSO responds to overpressure and blocks the gas flow.<\/li>\n<li>Strong sunlight or increasing temperatures will cause a pressure increase in the line and pressure regulator.<\/li>\n<li>The overpressure raises the diaphragm.<\/li>\n<li>The position change of the diaphragm causes a gap to open at the valve lever.<\/li>\n<li>The overpressure escapes from the ventilation opening in the cover of the pressure regulator.<\/li>\n<\/ul>\n<p><iframe title=\"Funktion Sicherheitsabblaseventil PRV\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/afnMBRcMj0c?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p style=\"text-align: justify;\">Once the overpressure has been relieved, the PRV closes <strong>automatically<\/strong>, whether it is the sole safety device or combined with an OPSO.<\/p>\n<hr \/>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"What_can_you_do_if_the_PRV_has_discharged\"><\/span>What can you do if the PRV has discharged?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">For pressure regulators with PRV as a single safety device as well as in combination with the OPSO, we recommend that you consult a <strong>specialist<\/strong> who checks the system.<\/p>\n<p style=\"text-align: justify;\"><strong>Tip for the specialist:<\/strong> Take a look at our article <a href=\"https:\/\/www.gok-blog.de\/en\/2016\/03\/31\/how-can-i-release-an-opso-sav\/\" target=\"_blank\" rel=\"noopener noreferrer\">on how to release the OPSO again<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The PRV pressure relief valve is integrated into the LPG pressure regulator and protects against overpressure by blowing out gas into the environment.<\/p>\n","protected":false},"author":8,"featured_media":11272,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[394,396,397],"tags":[321,347,331,322,332],"ausgabe":[],"class_list":["post-9832","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-camping-leisure","category-home-commercial","category-safety","tag-opso-en","tag-overpressure","tag-pressure-relief-valve","tag-prv-en","tag-safety-equipment"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/posts\/9832","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/comments?post=9832"}],"version-history":[{"count":1,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/posts\/9832\/revisions"}],"predecessor-version":[{"id":14479,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/posts\/9832\/revisions\/14479"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/media\/11272"}],"wp:attachment":[{"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/media?parent=9832"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/categories?post=9832"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/tags?post=9832"},{"taxonomy":"ausgabe","embeddable":true,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/ausgabe?post=9832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}