{"id":10123283,"date":"2020-05-28T19:06:38","date_gmt":"2020-05-28T19:06:38","guid":{"rendered":"https:\/\/brennaninc.mx\/?page_id=10123283"},"modified":"2023-01-30T14:07:52","modified_gmt":"2023-01-30T14:07:52","slug":"fittings-101-instrumentation-double-ferrule-compression-fittings","status":"publish","type":"page","link":"https:\/\/brennaninc.mx\/en\/fittings-101-instrumentation-double-ferrule-compression-fittings\/","title":{"rendered":"Fittings 101: Instrumentation Double-Ferrule Compression Fittings"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"10123283\" class=\"elementor elementor-10123283\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c8c1172 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c8c1172\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-92cd9a9\" data-id=\"92cd9a9\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-03e63e9 elementor-widget elementor-widget-video\" data-id=\"03e63e9\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=-7J3H7xpb6Q&amp;feature=youtu.be&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0afcea5 elementor-widget elementor-widget-heading\" data-id=\"0afcea5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Connection Type: Double-Ferrule <br>Instrumentation Fittings<span style=\"font-size: 2em;font-size: 2em\"><\/span><br><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-20f5bcc elementor-widget elementor-widget-text-editor\" data-id=\"20f5bcc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>What are Double-Ferrule Instrumentation Fittings?<\/strong><\/p>\n<p>A double ferrule compression fitting is the most common instrumentation style fitting. They are regularly used in process measurement and control systems in aerospace, defense, chemical processing plants, medical equipment and oil &amp; gas industries. Compression fittings are made up of three components: nut, body and ferrule (either single or double). This design creates a sequential grip on the tube. Instrumentation fittings have U.N.E.F. or (United National Extra Fine) threads and sizing is determined by the outside diameter of the tubing being used. The ferrule coins and compresses into the tube to provide a tight grip on the tube surface.<\/p>\n<p>The male end of a double-ferrule instrumentation fitting has a recessed counter-bore which matches the tube O.D. being used, plus an inner cone. The seal is made between the front ferrule and the cone. The tubing is held in place by the swaging action caused by the tightening of the nut, which forces the front and back ferrules to bite into the tubing, firmly holding it in place. This allows for the use of un-flared tubing with these connectors.<\/p>\n<p><strong>Disadvantages of using Double Ferrule Instrumentation Fittings:<\/strong><\/p>\n<ul>\n<li>Compared to other tube fittings, they have a more complex design that could lead to improper installation<\/li>\n<li>The selection of the wrong tubing is a very common mistake in installation. Proper selection, handling and installation of tubing are essential for reliable tubing system performance<\/li>\n<li>In some cases, lubrication is required on the threads of the mating nut to prevent galling<\/li>\n<li>The tubing needs to be&nbsp;carefully&nbsp;cut,&nbsp;deburred,&nbsp;chamfered&nbsp;and free of defects or scratches,&nbsp;before installation<\/li>\n<li>The application and materials used in the manufacture of the fittings, make corrosion a consideration during system design<\/li>\n<li>They are more expensive than non-instrumentation style fittings<\/li>\n<\/ul>\n<p><strong>Advantages of using Double-Ferrule Instrumentation Fittings:<\/strong><\/p>\n<ul>\n<li>They are readily available and offer a large variety of sizes, shapes, combinations and materials<\/li>\n<li>Double ferrule compression fittings make a strong and leak-safe seal when installation steps are properly followed<\/li>\n<li>They have greater vibration resistance then other instrumentation fittings like Cone and Thread fittings<\/li>\n<li>They are extremely reliable and safe in systems with low to high pressure ratings<\/li>\n<li>They perform equally well on thick and thinner walled tubing<\/li>\n<li>Because of their flexibility, reliability and relative ease of installation, double-ferrule compression fittings are a standard choice in overall instrumentation system design<\/li>\n<\/ul>\n<p>There are other instrumentation and compression style fittings. One example, the single-ferrule instrumentation fitting, is similar to the double-ferrule, but has a larger front ferrule and no back ferrule. There are many varieties of compression style fittings and many different applications in which they are used. For these reasons care needs to be taken to properly identify the right connection to create a safe and leak resistant seal.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-ca9815a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ca9815a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-55319b1\" data-id=\"55319b1\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-26e629f elementor-widget elementor-widget-image\" data-id=\"26e629f\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"576\" height=\"576\" src=\"https:\/\/brennaninc.mx\/wp-content\/uploads\/2020\/05\/INS.png\" class=\"attachment-large size-large wp-image-10123287\" alt=\"\" srcset=\"https:\/\/brennaninc.mx\/wp-content\/uploads\/2020\/05\/INS.png 576w, https:\/\/brennaninc.mx\/wp-content\/uploads\/2020\/05\/INS-300x300.png 300w, https:\/\/brennaninc.mx\/wp-content\/uploads\/2020\/05\/INS-150x150.png 150w, https:\/\/brennaninc.mx\/wp-content\/uploads\/2020\/05\/INS-324x324.png 324w, https:\/\/brennaninc.mx\/wp-content\/uploads\/2020\/05\/INS-416x416.png 416w, https:\/\/brennaninc.mx\/wp-content\/uploads\/2020\/05\/INS-100x100.png 100w, https:\/\/brennaninc.mx\/wp-content\/uploads\/2020\/05\/INS-32x32.png 32w\" sizes=\"(max-width: 576px) 100vw, 576px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-f86d954\" data-id=\"f86d954\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-8fa68a2\" data-id=\"8fa68a2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3a443c5 elementor-widget elementor-widget-text-editor\" data-id=\"3a443c5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><!--HubSpot Call-to-Action Code --><span id=\"hs-cta-wrapper-8e094a54-e5d8-42df-ad9e-f758ad467dfe\" class=\"hs-cta-wrapper\"><span id=\"hs-cta-8e094a54-e5d8-42df-ad9e-f758ad467dfe\" class=\"hs-cta-node hs-cta-8e094a54-e5d8-42df-ad9e-f758ad467dfe\"><!-- [if lte IE 8]><\/p>\n<div id=\"hs-cta-ie-element\"><\/div>\n<p><![endif]--><a href=\"https:\/\/cta-redirect.hubspot.com\/cta\/redirect\/1793404\/8e094a54-e5d8-42df-ad9e-f758ad467dfe\"><img decoding=\"async\" id=\"hs-cta-img-8e094a54-e5d8-42df-ad9e-f758ad467dfe\" class=\"hs-cta-img aligncenter\" style=\"border-width: 0px;\" src=\"https:\/\/no-cache.hubspot.com\/cta\/default\/1793404\/8e094a54-e5d8-42df-ad9e-f758ad467dfe.png\" alt=\"New call-to-action\" \/><\/a><\/span><script charset=\"utf-8\" src=\"https:\/\/js.hscta.net\/cta\/current.js\"><\/script><script type=\"text\/javascript\"> hbspt.cta.load(1793404, '8e094a54-e5d8-42df-ad9e-f758ad467dfe', {}); 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<\/script><\/span><!-- end HubSpot Call-to-Action Code -->\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Connection Type: Double-Ferrule Instrumentation Fittings What are Double-Ferrule Instrumentation Fittings? A double ferrule compression fitting is the most common instrumentation style fitting. They are regularly used in process measurement and control systems in aerospace, defense, chemical processing plants, medical equipment and oil &amp; gas industries. Compression fittings are made up of three components: nut, body [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":"","footnotes":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.4 (Yoast SEO v24.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Fittings 101: Instrumentation Compression Double Ferrule Fittings<\/title>\n<meta name=\"description\" content=\"A double ferrule compression fitting is a common instrumentation style fitting and is used in process measurement and control systems.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/brennaninc.mx\/brennan-university-old__trashed\/fittings-101-instrumentation-double-ferrule-compression-fittings\/\" \/>\n<meta property=\"og:locale\" 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