{"id":42616,"date":"2020-01-22T05:00:00","date_gmt":"2020-01-22T05:00:00","guid":{"rendered":"https:\/\/discover.restek.com\/uncategorized\/correctly-using-a-press-tight-connector\/"},"modified":"2025-12-26T21:28:24","modified_gmt":"2025-12-26T21:28:24","slug":"correctly-using-a-press-tight-connector","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/fr\/videos\/gnav4909\/correctly-using-a-press-tight-connector","title":{"rendered":"Correctly Using a Press-Tight Connector"},"content":{"rendered":"\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Correctly Using a Press-Tight Connector\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/VNlbbfKmhS8?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>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Description<\/strong><\/h2>\n\n\n\n<p>If you\u2019ve ever needed to connect a guard column to an analytical column, or&nbsp;connect&nbsp;two columns together,&nbsp;or repair a broken column,&nbsp;you know how essential it is to have a clean, reliable connection.&nbsp;<\/p>\n\n\n\n<p>In today\u2019s Restek Tip, we\u2019re going to show you how to use a Press-Tight connector.&nbsp;They&nbsp;come in a variety of types and have multiple uses, from connecting two columns together, to even repairing a broken column.&nbsp;Let\u2019s connect some columns!&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Additional Resources<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/discover.restek.com\/202-04-001\/universal-fused-silica-press-tight-connectors\/\">Press-Tight Connector Instruction Sheet<\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Restek Recommended Tools &amp; Parts<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.restek.com\/c\/1571\" target=\"_blank\" rel=\"noreferrer noopener\">Universal Press-Tight Connectors<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.restek.com\/p\/20445\" target=\"_blank\" rel=\"noopener\">Polyimide Resin<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Transcript<\/h2>\n\n\n\n<p>If you\u2019ve ever needed to connect a guard column to an analytical column, connect two columns together or even repair a broken column, you know how essential it is to have a clean, reliable connection.&nbsp;In today\u2019s Restek Tip, we\u2019re going to show you how to use a Press-Tight connector to make those connections.&nbsp;<\/p>\n\n\n\n<p>We\u2019ll start by cutting the ends off of our GC capillary columns to create nice, square edges.&nbsp;Once you have completed the cut, be sure to clean the end of the column using a lint-free wipe with a solvent like methanol or acetonitrile to remove any fragments.&nbsp;Now, while holding the Press-Tight connector in one hand, gently insert the column end into the connector until it is gripped firmly in the radial restriction.&nbsp;A continuous brown ring where the column end compresses inside the connector indicates a proper connection.&nbsp;Be careful not to press too hard as this could crush the end of the column.&nbsp;And now we simply repeat the process to insert the other column into the connector.&nbsp;To help ensure a durable connection, you may apply a very small amount of polyimide resin halfway around the column tubing near the opening of the Press-Tight connector. Allow thirty minutes to air dry.<\/p>\n\n\n\n<p>Now you&#8217;re ready to install the column.&nbsp;After the column is installed and the carrier gas flow is on, there are several important steps you should perform before using.&nbsp;Leak check the connections before and after the column is heated using an electronic leak detector.&nbsp;Test the integrity of the connection by injecting an unretained compound and carefully inspect the peak shape.&nbsp;Symmetrical peaks indicate a proper connection.&nbsp;<\/p>\n\n\n\n<p>It is important to note that the connectors cannot be reused once they are heated because the polyimide residue cured inside the connector will prevent sealing.&nbsp;If you used a polyimide resin, once you have established a leak-free connection, cure the resin by heating the column in the GC oven using the following program, while keeping the flow on.&nbsp;Note that heating polyimide-coated tubing above 350\u00b0C for extended periods may cause the polyimide to dry out, resulting in a poor seal.&nbsp;Be sure to periodically leak check the connections to confirm seal integrity and that\u2019s it! You\u2019re done! That\u2019s all that\u2019s needed to create a seal between two columns.&nbsp;<\/p>\n\n\n\n<p>Be sure to like and subscribe for more helpful content, and thank you for joining us in this Restek Tip.<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Have you ever needed to connect two columns together, or repair a broken column? Check out our latest Restek Tip to see how to use our Press-Tight connectors!<\/p>\n","protected":false},"author":11,"featured_media":41514,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[8],"tags":[],"industries-application":[],"post-badge":[],"resource-type":[],"product-library":[2385,2372],"resource-technique":[2294],"ppma_author":[414],"class_list":["post-42616","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-videos","product-library-ferrules-fittings-connectors","product-library-gas-chromatography-products","resource-technique-gas-chromatography-gc"],"acf":[],"taxonomy_info":{"category":[{"value":8,"label":"Videos"}],"product-library":[{"value":2385,"label":"Ferrules, Fittings, Connectors"},{"value":2372,"label":"Gas Chromatography Products"}],"resource-technique":[{"value":2294,"label":"Gas Chromatography (GC)"}]},"featured_image_src_large":["https:\/\/discover.restek.com\/wp-content\/uploads\/feature-GNAV4909-1024x536.jpg",1024,536,true],"author_info":{"display_name":"Restek Corporation","author_link":"https:\/\/discover.restek.com\/fr\/author\/restek-corporation\/"},"comment_info":0,"category_info":[{"term_id":8,"name":"Videos","slug":"videos","term_group":0,"term_taxonomy_id":8,"taxonomy":"category","description":"","parent":0,"count":136,"filter":"raw","cat_ID":8,"category_count":136,"category_description":"","cat_name":"Videos","category_nicename":"videos","category_parent":0}],"tag_info":false,"authors":[{"term_id":414,"user_id":11,"is_guest":0,"slug":"restek-corporation","display_name":"Restek Corporation","avatar_url":{"url":"https:\/\/discover.restek.com\/wp-content\/uploads\/Restek_Favicon_300x300.jpg","url2x":"https:\/\/discover.restek.com\/wp-content\/uploads\/Restek_Favicon_300x300.jpg"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/posts\/42616","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/comments?post=42616"}],"version-history":[{"count":4,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/posts\/42616\/revisions"}],"predecessor-version":[{"id":78674,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/posts\/42616\/revisions\/78674"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/media\/41514"}],"wp:attachment":[{"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/media?parent=42616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/categories?post=42616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/tags?post=42616"},{"taxonomy":"industries-application","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/industries-application?post=42616"},{"taxonomy":"post-badge","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/post-badge?post=42616"},{"taxonomy":"resource-type","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/resource-type?post=42616"},{"taxonomy":"product-library","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/product-library?post=42616"},{"taxonomy":"resource-technique","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/resource-technique?post=42616"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/ppma_author?post=42616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}