{"id":108,"date":"2018-01-11T14:16:58","date_gmt":"2018-01-11T19:16:58","guid":{"rendered":"http:\/\/www.keepsafe.ca\/wordpress\/?page_id=108"},"modified":"2019-12-16T09:45:14","modified_gmt":"2019-12-16T14:45:14","slug":"active-anoxic-showcases","status":"publish","type":"page","link":"http:\/\/www.keepsafe.ca\/?page_id=108","title":{"rendered":"Active Anoxic Showcases"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-right:5%;--awb-padding-left:5%;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_4_5 4_5 fusion-four-fifth fusion-column-first\" style=\"--awb-padding-right:15px;--awb-padding-left:0px;--awb-bg-size:cover;--awb-border-color:#414042;--awb-border-style:solid;width:80%;width:calc(80% - ( ( 4% ) * 0.8 ) );margin-right: 4%;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-text fusion-text-1\"><h1>Active Anoxic Showcases<\/h1>\n<h3>Active Low Oxygen Display Cases<\/h3>\n<p><span style=\"font-weight: 400;\">Active anoxic systems allow the use of an extremely well-sealed case, typically with an air exchange rate of less than one air change every ten days.\u00a0 It is wise to consider that leakage rates can be quite variable, and the introduction of an extreme environment (eg. 0.1% oxygen) that is radically unlike the ambient surroundings (201% oxygen) may dramatically increase the leakage rate. A stream of nearly pure nitrogen is introduced into the showcase to displace any oxygen that might have leaked in. Active oxygen control generally includes an active control device for maintaining constant humidity.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Active systems are often unable to provide &#8220;true&#8221; anoxic conditions: Feed volumes from nitrogen generators are dramatically reduced as purity of the feed is increased. This usually limits the purity of the feed to 0.1% oxygen (or more), thus limiting the lower limit. Even with a nearly pure feed of nitrogen, a substantial flow rate of nitrogen is needed to counter leakage and maintain low oxygen levels. This limits showcase size, and increases energy costs with showcase volume.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">An active system can be used on commonly available showcase designs. The nitrogen source can be hidden in the base of the showcase, but noise, heat and vibration considerations usually mitigate towards the location of the nitrogen source in a remote location. As purity of flow is directly related to higher pressures, energy costs may be substantial. As well, nitrogen generators all include high pressure compressors, and must be well maintained.<\/span><\/p>\n<p>With all the above as caveat, we welcome your inquiries.<\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-108","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/www.keepsafe.ca\/index.php?rest_route=\/wp\/v2\/pages\/108","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.keepsafe.ca\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.keepsafe.ca\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.keepsafe.ca\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.keepsafe.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=108"}],"version-history":[{"count":3,"href":"http:\/\/www.keepsafe.ca\/index.php?rest_route=\/wp\/v2\/pages\/108\/revisions"}],"predecessor-version":[{"id":488,"href":"http:\/\/www.keepsafe.ca\/index.php?rest_route=\/wp\/v2\/pages\/108\/revisions\/488"}],"wp:attachment":[{"href":"http:\/\/www.keepsafe.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}