{"id":16857,"date":"2025-04-14T17:00:35","date_gmt":"2025-04-14T15:00:35","guid":{"rendered":"https:\/\/www.rct-online.de\/magazin\/?p=16857"},"modified":"2026-10-13T09:01:57","modified_gmt":"2026-10-13T07:01:57","slug":"hose-connectors-which-type-for-which-application","status":"publish","type":"post","link":"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/","title":{"rendered":"Hose Connectors: Which Type for Which Application?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_73 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#Shapes_of_Hose_Connectors\" title=\"Shapes of Hose Connectors\">Shapes of Hose Connectors<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#Types_of_Hose_Connectors\" title=\"Types of Hose Connectors\">Types of Hose Connectors<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#Threaded_Adapters_and_Threaded_Connectors\" title=\"Threaded Adapters and Threaded Connectors\">Threaded Adapters and Threaded Connectors<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#Barb_Connectors_and_Hose_Nipples_for_Soft_Hoses\" title=\"Barb Connectors and Hose Nipples for Soft Hoses\">Barb Connectors and Hose Nipples for Soft Hoses<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#Flange_Connections\" title=\"Flange Connections\">Flange Connections<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#Cutting_Ring_Fittings_and_Compression_Fittings_for_Rigid_Hoses_and_Pipes\" title=\"Cutting Ring Fittings and Compression Fittings for Rigid Hoses and Pipes\">Cutting Ring Fittings and Compression Fittings for Rigid Hoses and Pipes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#Quick-Disconnect_Couplings_Made_of_Plastics_and_Metals\" title=\"Quick-Disconnect Couplings Made of Plastics and Metals\">Quick-Disconnect Couplings Made of Plastics and Metals<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#Luer_Lock_Connectors_for_Medical_Technology\" title=\"Luer Lock Connectors for Medical Technology\">Luer Lock Connectors for Medical Technology<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#Materials_for_Hose_Connectors\" title=\"Materials for Hose Connectors\">Materials for Hose Connectors<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#Hose_Connectors_Made_of_Metal_Alloys\" title=\"Hose Connectors Made of Metal Alloys\">Hose Connectors Made of Metal Alloys<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#Hose_Connectors_Made_of_Polymers\" title=\"Hose Connectors Made of Polymers\">Hose Connectors Made of Polymers<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p style=\"text-align: justify;\"><strong>In hose technology, hose connectors play an important role. They come in as many variants as the hoses they join. They extend, branch or repair hose lines and connect them to valves, taps or equipment. Our guide covers the shapes and types of hose connectors and explains where each type is used.<\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Shapes_of_Hose_Connectors\"><\/span>Shapes of Hose Connectors<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Start with the golden rule: the number of <a href=\"https:\/\/www.rct-online.de\/en\/tubes-hoses\">hoses<\/a> you want to join determines the shape of the <a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\">hose and tube connectors<\/a>.<\/p>\n<ul>\n<li style=\"text-align: justify;\">Connectors for two lines can be straight, right-angled or acute-angled. Accordingly, they are known as I-shaped, L-shaped or V-shaped connectors.<\/li>\n<li style=\"text-align: justify;\">To join three hoses, use T-shaped or Y-shaped connectors, or connectors with three ports at 120\u00b0 to one another.<\/li>\n<li style=\"text-align: justify;\">Four hose lines are joined with a cross connector, whose ends are arranged at 90\u00b0 to each other.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Types_of_Hose_Connectors\"><\/span>Types of Hose Connectors<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">The ends, or hose ports, of hose connectors come in many variations. A single connector can combine identical or different connection types and sizes. Connectors with a different diameter at each end are also known as reducers.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Threaded_Adapters_and_Threaded_Connectors\"><\/span>Threaded Adapters and Threaded Connectors<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">A nipple is a short piece of pipe that is smooth, corrugated or carries an external thread. Its counterpart is the socket, a short piece of pipe with an internal thread. If both ends are identical, the parts are called double nipples or double sockets.<\/p>\n<div class=\"box info  \"><div class=\"box-inner-block\"><i class=\"fa tie-shortcode-boxicon\"><\/i>\n\t\t\tHose connectors with an internal thread are also called screw-on connectors. Those with an external thread are called screw-in connectors.\n\t\t\t<\/div><\/div>\n<p style=\"text-align: justify;\">Threaded joints do not necessarily need a sealant such as PTFE tape to stay leak-free. A taper R external thread and a parallel Rp internal thread form a self-sealing <a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\/connectors-made-of-plastic\/threaded-adapter\">threaded connection<\/a> because of the thread form. Parallel G threads, by contrast, seal against a flat shoulder, often fitted with an integrated elastomer flat gasket.<\/p>\n<p><center><a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\/connectors-made-of-plastic\/threaded-adapter\/29109\/double-nipple-made-of-pp-pvdf-or-pfa\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7602 size-full\" title=\"Double Nipple made of PP, PVDF or PFA\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Doppelnippel-aus-PP-PVDF-oder-PFA.jpg\" alt=\"Double nipple made of PP, PVDF or PFA hose-connectors\" width=\"300\" height=\"200\" \/><\/a> <a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\/connectors-made-of-plastic\/barb-connectors\/28954\/straight-barb-connector-with-male-thread-made-of-pp-pvdf-or-ptfe\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7603 size-full\" title=\"Straight Barb Connector with External Thread made of PP, PVDF or PTFE\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Gerade-Schlauchtuelle-mit-Aussengewinde-aus-PP-PVDF-oder-PTFE.jpg\" alt=\"Straight barb connector with external thread made of PP, PVDF or PTFE hose-connectors\" width=\"300\" height=\"250\" \/><\/a><\/center><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Barb_Connectors_and_Hose_Nipples_for_Soft_Hoses\"><\/span>Barb Connectors and Hose Nipples for Soft Hoses<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">A <a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\/connectors-made-of-plastic\/barb-connectors\">barb connector<\/a> is a nipple with a cylindrical or tapered shape and a smooth, corrugated or ribbed surface. To stop the hose slipping off, you can also secure it with a <a href=\"https:\/\/www.rct-online.de\/en\/tubes-hoses\/clamps-and-cutters\/hose-clamps-tubing-clamps\">hose clamp or tubing clamp<\/a>. The diameters of the hose and the barb must match to create a tight, secure connection.<\/p>\n<div class=\"box note  \"><div class=\"box-inner-block\"><i class=\"fa tie-shortcode-boxicon\"><\/i>\n\t\t\tIn the chemistry lab, barb connectors are also simply called \u201cbarbs\u201d because of their shape.\n\t\t\t<\/div><\/div>\n<p style=\"text-align: justify;\">In chemistry labs, barbs connect hose lines to glass apparatus. If the glassware has a glass thread, a direct hose or pipe connection is often not possible. In such cases, you need <a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\/connectors-made-of-plastic\/glass-thread-adapter\">glass thread adapters<\/a>. They allow <a href=\"https:\/\/www.rct-online.de\/en\/tubes-hoses\/tubings-and-pipes-made-of-rigid-plastics\">plastic pipes<\/a> and hoses to connect to GL threads.<\/p>\n<p style=\"text-align: justify;\">Double barb connectors, also called straight barb connectors, join two hose lines. A barb can also be combined with a thread. A connector may have a barb on one side and an external thread on the other. This is called a screw-in or threaded barb connector, and its name states the exact thread size. A barb combined with an internal thread is called a screw-on barb connector. This type of hose connector links hoses to valves, taps or equipment. In everyday life, you will find it on garden hoses or when topping up the water in a heating system.<\/p>\n<p><center><a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\/connectors-made-of-plastic\/barb-connectors\/31162\/universal-barb-union-made-of-pp-or-pvdf\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7607 size-full\" title=\"Universal Barb Connector made of PP or PVDF\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Universal-Schlauchtuelle-aus-PP-oder-PVDF.jpg\" alt=\"Universal barb connector made of PP or PVDF hose-connectors\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Universal-Schlauchtuelle-aus-PP-oder-PVDF.jpg 300w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Universal-Schlauchtuelle-aus-PP-oder-PVDF-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a> <a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\/connectors-made-of-plastic\/barb-connectors\/28947\/y-shaped-barb-union-made-of-pp-or-pvdf\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7608 size-full\" title=\"Y Barb Connector made of PP or PVDF\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Y-Schlauchtuelle-aus-PP-oder-PVDF.jpg\" alt=\"Y barb connector made of PP or PVDF hose-connectors\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Y-Schlauchtuelle-aus-PP-oder-PVDF.jpg 300w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Y-Schlauchtuelle-aus-PP-oder-PVDF-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/center><\/p>\n<p style=\"text-align: justify;\">Special barb connectors for rigid hoses are available. Even so, barbs work best with <a href=\"https:\/\/www.rct-online.de\/en\/tubes-hoses\/tubing-made-of-elastomers-soft-rubber\">soft tubes and hoses<\/a>. Typical materials are silicone rubber, ethylene propylene diene monomer rubber (EPDM) and polyvinyl chloride (PVC). In everyday language, these hoses are often called \u201crubber hoses\u201d.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Flange_Connections\"><\/span>Flange Connections<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">A flange connection combines a flange with a pipe stub or barb. Here, too, a hose clamp or tubing clamp secures the hose. You will often find this type of hose connector on pumps, shower hoses and flexible water supply hoses.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cutting_Ring_Fittings_and_Compression_Fittings_for_Rigid_Hoses_and_Pipes\"><\/span>Cutting Ring Fittings and Compression Fittings for Rigid Hoses and Pipes<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">Cutting ring fittings consist of a body, union nuts and cutting rings, also known as ferrules. Slide the union nut and cutting ring onto the hose. Then push the hose into the body as far as it will go. The cutting ring has a sharp edge. When you tighten the union nut, the ring cuts into the hose or pipe surface. This creates a firm grip and a tight seal. Depending on the material and design, the cutting ring may deform as the nut is tightened. Some <a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\/connectors-made-of-plastic\/screw-joints-for-rigid-tubes-and-pipes\">pipe connectors<\/a> also contain an additional sealing ring that helps keep the joint leak-free.<\/p>\n<div class=\"box success  \"><div class=\"box-inner-block\"><i class=\"fa tie-shortcode-boxicon\"><\/i>\n\t\t\tCutting ring fittings connect rigid plastic hoses as well as metal pipes and capillaries.\n\t\t\t<\/div><\/div>\n<p style=\"text-align: justify;\">Because cutting ring fittings withstand high pressures, they are also known as high-pressure fittings. Equipment engineers and laboratories use them to extend or connect metal or plastic lines.<\/p>\n<p><center><a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\/connectors-made-of-plastic\/screw-joints-for-rigid-tubes-and-pipes\/29039\/straight-pipe-connector-made-of-pp-pvdf-or-ptfe\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7611 size-full\" title=\"Straight Pipe Connector made of PP, PVDF or PTFE\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Gerader-Rohrverbinder-aus-PP-PVDF-oder-PTFE.jpg\" alt=\"Straight pipe connector made of PP, PVDF or PTFE\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Gerader-Rohrverbinder-aus-PP-PVDF-oder-PTFE.jpg 300w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Gerader-Rohrverbinder-aus-PP-PVDF-oder-PTFE-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a> <a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\/connectors-made-of-plastic\/screw-joints-for-rigid-tubes-and-pipes\/29041\/straight-pipe-connector-with-male-thread-made-of-pp-pvdf-or-ptfe\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7612 size-full\" title=\"Straight Pipe Connector with External Thread made of PP, PVDF or PTFE\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Gerader-Rohrverbinder-mit-Aussengewinde-aus-PP-PVDF-oder-PTFE.jpg\" alt=\"Straight pipe connector with external thread made of PP, PVDF or PTFE\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Gerader-Rohrverbinder-mit-Aussengewinde-aus-PP-PVDF-oder-PTFE.jpg 300w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Gerader-Rohrverbinder-mit-Aussengewinde-aus-PP-PVDF-oder-PTFE-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/center><\/p>\n<p style=\"text-align: justify;\">Compression fittings also consist of three parts: the body, the compression ring and a union nut. Unlike a cutting ring, the compression ring does not cut into the hose. Instead, it clamps onto it as you turn the nut, creating a tight seal. Soft hoses additionally require support sleeves. Typical applications include water, gas and heating oil installations, compressed air systems, process chemistry, medical technology and analytical instruments.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Quick-Disconnect_Couplings_Made_of_Plastics_and_Metals\"><\/span>Quick-Disconnect Couplings Made of Plastics and Metals<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">Hose couplings, also known as <a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\/quick-disconnect-couplings-made-of-plastic\">quick-disconnect couplings<\/a>, consist of a coupling body and a matching plug. Each part connects to the hose via a barb or a screw joint. Versions with internal or external threads are also available.<\/p>\n<p><center><a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\/quick-disconnect-couplings-made-of-plastic\/pp-quick-disconnect-couplings\/31234\/pp-quick-disconnect-coupling-nw-3.2-mm\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7615 size-full\" title=\"PP Quick-Disconnect Coupling, Nominal Bore 3.2 mm\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/PP-Schnellverschlusskupplung-NW-32-mm.jpg\" alt=\"PP quick-disconnect coupling, nominal bore 3.2 mm\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/PP-Schnellverschlusskupplung-NW-32-mm.jpg 300w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/PP-Schnellverschlusskupplung-NW-32-mm-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a> <a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\/quick-disconnect-couplings-made-of-plastic\/pp-quick-disconnect-couplings\/31235\/pp-quick-disconnect-nipple-nw-3.2-mm\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7616 size-full\" title=\"PP Quick-Disconnect Plug, Nominal Bore 3.2 mm\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/PP-Schnellverschluss-Stecker-NW-32-mm.jpg\" alt=\"PP quick-disconnect plug, nominal bore 3.2 mm\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/PP-Schnellverschluss-Stecker-NW-32-mm.jpg 300w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/PP-Schnellverschluss-Stecker-NW-32-mm-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/center><\/p>\n<p style=\"text-align: justify;\">Couplings contain elastomer seals to keep the connection leak-free. They can also have valves that stop the medium escaping when you disconnect them. The advantage of quick-disconnect couplings is that you can separate and reconnect them quickly without tools. Typical uses include compressed air, chemical and water hoses.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Luer_Lock_Connectors_for_Medical_Technology\"><\/span>Luer Lock Connectors for Medical Technology<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">The Luer system is another connection that you can separate without tools. In the simple version, known as Luer slip, a tapered male end plugs into a matching female internal cone. If both parts also have a thread, they are called <a href=\"https:\/\/www.rct-online.de\/en\/tube-hose-connectors\/connectors-made-of-plastic\/luer-lock-connectors\">Luer lock connectors<\/a>. You will find them mainly in medical technology, but also in laboratories that transport small volumes through micro tubing.<\/p>\n<figure id=\"attachment_7598\" aria-describedby=\"caption-attachment-7598\" style=\"width: 450px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7598\" title=\"Luer Lock Hose Connectors in Medical Technology\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Luer-Lock-Schlauchverbinder-in-der-Medizintechnik.jpg\" alt=\"Luer lock hose connectors in medical technology hose-connectors\" width=\"450\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Luer-Lock-Schlauchverbinder-in-der-Medizintechnik.jpg 700w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Luer-Lock-Schlauchverbinder-in-der-Medizintechnik-300x200.jpg 300w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><figcaption id=\"caption-attachment-7598\" class=\"wp-caption-text\"><center>Luer lock hose connectors in medical technology<\/center><\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Materials_for_Hose_Connectors\"><\/span>Materials for Hose Connectors<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">What material should a hose connector be made of? The choice depends on the process temperature and pressure at which the connector operates. Chemical compatibility with the medium it carries matters just as much.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hose_Connectors_Made_of_Metal_Alloys\"><\/span>Hose Connectors Made of Metal Alloys<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">Metal hose connectors are made of stainless steel, aluminium, galvanised steel or brass, which may also be nickel-plated or chrome-plated. Metal connectors work across a wide temperature and pressure range. Stainless steel connectors offer good chemical resistance. Aluminium and brass connectors, by contrast, do not resist dilute acids and alkalis. Salt water also attacks brass connectors.<\/p>\n<figure id=\"attachment_7592\" aria-describedby=\"caption-attachment-7592\" style=\"width: 450px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7592\" title=\"Threaded Adapters and Hose Screw Joints made of Stainless Steel\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Gewindeadapter-und-Schlauchverschraubungen-aus-Edelstahl.jpg\" alt=\"Threaded adapters and hose screw joints made of stainless steel\" width=\"450\" height=\"253\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Gewindeadapter-und-Schlauchverschraubungen-aus-Edelstahl.jpg 700w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/Gewindeadapter-und-Schlauchverschraubungen-aus-Edelstahl-300x169.jpg 300w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><figcaption id=\"caption-attachment-7592\" class=\"wp-caption-text\"><center>Threaded adapters and hose screw joints made of stainless steel<\/center><\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Hose_Connectors_Made_of_Polymers\"><\/span>Hose Connectors Made of Polymers<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">Plastic hose connectors are available in the following materials:<\/p>\n<ul>\n<li style=\"text-align: justify;\">Polypropylene (PP)<\/li>\n<li style=\"text-align: justify;\">Unplasticised polyvinyl chloride (PVC-U)<\/li>\n<li style=\"text-align: justify;\">High-density polyethylene (HDPE)<\/li>\n<li style=\"text-align: justify;\">Polyamide 6 (PA 6)<\/li>\n<li style=\"text-align: justify;\">Polytetrafluoroethylene (PTFE)<\/li>\n<li style=\"text-align: justify;\">Perfluoroalkoxy alkane (PFA)<\/li>\n<li style=\"text-align: justify;\">Polyvinylidene fluoride (PVDF)<\/li>\n<li style=\"text-align: justify;\">Polyoxymethylene (POM)<\/li>\n<li style=\"text-align: justify;\">Polyether ether ketone (PEEK)<\/li>\n<li style=\"text-align: justify;\">Polymethylpentene (PMP, TPX\u00ae)<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">Hose connectors made of PP work from 5 \u00b0C to 110 \u00b0C (41 \u00b0F to 230 \u00b0F). PVC connectors cover -30 \u00b0C to 60 \u00b0C (-22 \u00b0F to 140 \u00b0F). PA 6, HDPE and POM remain stable from -50 \u00b0C to 100 \u00b0C (-58 \u00b0F to 212 \u00b0F). TPX connectors suit temperatures up to 120 \u00b0C (248 \u00b0F) and PVDF connectors up to 150 \u00b0C (302 \u00b0F). PTFE connectors are rated up to 200 \u00b0C (392 \u00b0F). Adapters made of PEEK and PFA handle temperatures up to 260 \u00b0C (500 \u00b0F). The fluoropolymers PTFE and PFA also withstand very low temperatures down to -200 \u00b0C (-328 \u00b0F).<\/p>\n<p style=\"text-align: justify;\">When choosing a material, consider chemical resistance as well as thermal resistance. Hose connectors made of the commodity plastics HDPE, PA 6 and PP are adequate for many media.<\/p>\n<div class=\"box info  \"><div class=\"box-inner-block\"><i class=\"fa tie-shortcode-boxicon\"><\/i>\n\t\t\tFor highly aggressive chemicals and solvents, however, the fluoropolymers PVDF, PFA and PTFE are the better choice.\n\t\t\t<\/div><\/div>\n<p style=\"text-align: justify;\">Depending on the application, the material may also have to meet further requirements. Examples include <a href=\"https:\/\/www.rct-online.de\/magazin\/en\/usp-class-vi-approval\/\">USP Class VI<\/a> certification for medical applications, or approval for food contact.<\/p>\n<pre><strong>Image sources:<\/strong>\r\nFeatured image | \u00a9 rodimovpavel \u2013 stock.adobe.com\r\nLuer lock hose connectors | \u00a9 Jacob Kearns \u2013 stock.adobe.com\r\nThreaded adapters &amp; hose screw joints | \u00a9 Anatoly \u2013 stock.adobe.com<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>In hose technology, hose connectors play an important role. They come in as many variants as the hoses they join. They extend, branch or repair hose lines and connect them to valves, taps or equipment. Our guide covers the shapes and types of hose connectors and explains where each type is used. Shapes of Hose &hellip;<\/p>\n","protected":false},"author":13,"featured_media":12725,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,2744],"tags":[4411,3902,4410,4407,2928,4408,2905,2774,2775,2906,4409,4412],"class_list":["post-16857","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-all-articles","category-chemical-technology-in-action","tag-compression-fittings-for-rigid-hoses","tag-cutting-ring-fittings","tag-flange-connections","tag-hose-connectors","tag-hose-technology","tag-luer-lock-connectors","tag-pfa-en","tag-pp-en","tag-ptfe-en","tag-pvdf-en","tag-quick-disconnect-couplings","tag-threaded-adapters"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hose Connectors: Which Type for Which Application?<\/title>\n<meta name=\"description\" content=\"Hose connectors extend, branch and adapt hose lines. Our guide covers shapes, barb connectors, cutting ring fittings and materials | RCT Magazine\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hose Connectors: Which Type for Which Application?\" \/>\n<meta property=\"og:description\" content=\"Hose connectors extend, branch and adapt hose lines. Our guide covers shapes, barb connectors, cutting ring fittings and materials | RCT Magazine\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/\" \/>\n<meta property=\"og:site_name\" content=\"Reichelt Chemietechnik Magazine\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-14T15:00:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-13T07:01:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/verbindungsstuecke-fuer-schlaeuche.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"533\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Dr. Stefanie Schiestel\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr. Stefanie Schiestel\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"10 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/\",\"url\":\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/\",\"name\":\"Hose Connectors: Which Type for Which Application?\",\"isPartOf\":{\"@id\":\"https:\/\/www.rct-online.de\/magazin\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/verbindungsstuecke-fuer-schlaeuche.jpg\",\"datePublished\":\"2025-04-14T15:00:35+00:00\",\"dateModified\":\"2026-10-13T07:01:57+00:00\",\"author\":{\"@id\":\"https:\/\/www.rct-online.de\/magazin\/#\/schema\/person\/89a0b942d2a94d0243d2d5accd82d893\"},\"description\":\"Hose connectors extend, branch and adapt hose lines. Our guide covers shapes, barb connectors, cutting ring fittings and materials | RCT Magazine\",\"breadcrumb\":{\"@id\":\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#primaryimage\",\"url\":\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/verbindungsstuecke-fuer-schlaeuche.jpg\",\"contentUrl\":\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/verbindungsstuecke-fuer-schlaeuche.jpg\",\"width\":800,\"height\":533},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.rct-online.de\/magazin\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Hose Connectors: Which Type for Which Application?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.rct-online.de\/magazin\/#website\",\"url\":\"https:\/\/www.rct-online.de\/magazin\/\",\"name\":\"Reichelt Chemietechnik Magazine\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.rct-online.de\/magazin\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.rct-online.de\/magazin\/#\/schema\/person\/89a0b942d2a94d0243d2d5accd82d893\",\"name\":\"Dr. Stefanie Schiestel\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.rct-online.de\/magazin\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2024\/07\/Stefanie_Schiestel.jpg\",\"contentUrl\":\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2024\/07\/Stefanie_Schiestel.jpg\",\"caption\":\"Dr. Stefanie Schiestel\"},\"description\":\"Stefanie Schiestel hat an den Universit\u00e4ten Saarbr\u00fccken und Heidelberg Chemie studiert und an der Universit\u00e4t Heidelberg promoviert. Anschlie\u00dfend hat sie sieben Jahre am Naval Research Institute in Washington D.C. gearbeitet und ist seitdem in den Bereichen Beschichtung und Analytik t\u00e4tig. Seit 2021 hat sie f\u00fcr das Online-Magazin der Reichelt Chemietechnik mehr als 50 Beitr\u00e4ge verfasst.\",\"url\":\"https:\/\/www.rct-online.de\/magazin\/en\/author\/s-schiestel\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Hose Connectors: Which Type for Which Application?","description":"Hose connectors extend, branch and adapt hose lines. Our guide covers shapes, barb connectors, cutting ring fittings and materials | RCT Magazine","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/","og_locale":"en_US","og_type":"article","og_title":"Hose Connectors: Which Type for Which Application?","og_description":"Hose connectors extend, branch and adapt hose lines. Our guide covers shapes, barb connectors, cutting ring fittings and materials | RCT Magazine","og_url":"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/","og_site_name":"Reichelt Chemietechnik Magazine","article_published_time":"2025-04-14T15:00:35+00:00","article_modified_time":"2026-10-13T07:01:57+00:00","og_image":[{"width":800,"height":533,"url":"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/verbindungsstuecke-fuer-schlaeuche.jpg","type":"image\/jpeg"}],"author":"Dr. Stefanie Schiestel","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Dr. Stefanie Schiestel","Est. reading time":"10 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/","url":"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/","name":"Hose Connectors: Which Type for Which Application?","isPartOf":{"@id":"https:\/\/www.rct-online.de\/magazin\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#primaryimage"},"image":{"@id":"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#primaryimage"},"thumbnailUrl":"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/verbindungsstuecke-fuer-schlaeuche.jpg","datePublished":"2025-04-14T15:00:35+00:00","dateModified":"2026-10-13T07:01:57+00:00","author":{"@id":"https:\/\/www.rct-online.de\/magazin\/#\/schema\/person\/89a0b942d2a94d0243d2d5accd82d893"},"description":"Hose connectors extend, branch and adapt hose lines. Our guide covers shapes, barb connectors, cutting ring fittings and materials | RCT Magazine","breadcrumb":{"@id":"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#primaryimage","url":"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/verbindungsstuecke-fuer-schlaeuche.jpg","contentUrl":"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2022\/05\/verbindungsstuecke-fuer-schlaeuche.jpg","width":800,"height":533},{"@type":"BreadcrumbList","@id":"https:\/\/www.rct-online.de\/magazin\/en\/hose-connectors-which-type-for-which-application\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.rct-online.de\/magazin\/en\/"},{"@type":"ListItem","position":2,"name":"Hose Connectors: Which Type for Which Application?"}]},{"@type":"WebSite","@id":"https:\/\/www.rct-online.de\/magazin\/#website","url":"https:\/\/www.rct-online.de\/magazin\/","name":"Reichelt Chemietechnik Magazine","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.rct-online.de\/magazin\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/www.rct-online.de\/magazin\/#\/schema\/person\/89a0b942d2a94d0243d2d5accd82d893","name":"Dr. Stefanie Schiestel","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.rct-online.de\/magazin\/#\/schema\/person\/image\/","url":"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2024\/07\/Stefanie_Schiestel.jpg","contentUrl":"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2024\/07\/Stefanie_Schiestel.jpg","caption":"Dr. Stefanie Schiestel"},"description":"Stefanie Schiestel hat an den Universit\u00e4ten Saarbr\u00fccken und Heidelberg Chemie studiert und an der Universit\u00e4t Heidelberg promoviert. Anschlie\u00dfend hat sie sieben Jahre am Naval Research Institute in Washington D.C. gearbeitet und ist seitdem in den Bereichen Beschichtung und Analytik t\u00e4tig. Seit 2021 hat sie f\u00fcr das Online-Magazin der Reichelt Chemietechnik mehr als 50 Beitr\u00e4ge verfasst.","url":"https:\/\/www.rct-online.de\/magazin\/en\/author\/s-schiestel\/"}]}},"_links":{"self":[{"href":"https:\/\/www.rct-online.de\/magazin\/en\/wp-json\/wp\/v2\/posts\/16857"}],"collection":[{"href":"https:\/\/www.rct-online.de\/magazin\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rct-online.de\/magazin\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rct-online.de\/magazin\/en\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rct-online.de\/magazin\/en\/wp-json\/wp\/v2\/comments?post=16857"}],"version-history":[{"count":3,"href":"https:\/\/www.rct-online.de\/magazin\/en\/wp-json\/wp\/v2\/posts\/16857\/revisions"}],"predecessor-version":[{"id":16865,"href":"https:\/\/www.rct-online.de\/magazin\/en\/wp-json\/wp\/v2\/posts\/16857\/revisions\/16865"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.rct-online.de\/magazin\/en\/wp-json\/wp\/v2\/media\/12725"}],"wp:attachment":[{"href":"https:\/\/www.rct-online.de\/magazin\/en\/wp-json\/wp\/v2\/media?parent=16857"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rct-online.de\/magazin\/en\/wp-json\/wp\/v2\/categories?post=16857"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rct-online.de\/magazin\/en\/wp-json\/wp\/v2\/tags?post=16857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}