{"id":2844,"date":"2024-03-07T11:12:02","date_gmt":"2024-03-07T10:12:02","guid":{"rendered":"https:\/\/www.bf-hydraulik.com\/encyclopedia\/hydraulic-fittings\/"},"modified":"2026-04-15T11:53:23","modified_gmt":"2026-04-15T09:53:23","slug":"hydraulic-fittings","status":"publish","type":"encyclopedia","link":"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-fittings\/","title":{"rendered":"Hydraulic Fittings"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2844\" class=\"elementor elementor-2844 elementor-706\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-735b55f8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"735b55f8\" 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-50 elementor-top-column elementor-element elementor-element-2820cb8b\" data-id=\"2820cb8b\" 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-9fb9997 elementor-widget elementor-widget-text-editor\" data-id=\"9fb9997\" 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<h1>Hydraulic Fittings<\/h1><p><a href=\"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-fittings\/\" target=\"_self\" title=\"Hydraulic FittingsHydraulic fittings refer to all components used to connect pipes and hoses that have at least one thread. Most hydraulic fittings feature two threaded sections for fast and secure&hellip;\" class=\"encyclopedia\">Hydraulic fittings<\/a> refer to all components used to connect pipes and hoses that have at least one thread. Most <a href=\"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-fittings\/\" target=\"_self\" title=\"Hydraulic FittingsHydraulic fittings refer to all components used to connect pipes and hoses that have at least one thread. Most hydraulic fittings feature two threaded sections for fast and secure&hellip;\" class=\"encyclopedia\">hydraulic fittings<\/a> feature two threaded sections for fast and secure connection. Conventional threads in these components range from M12 x 1.5 to M42 x 2.0. The dimensions are based on the diameter of the connected pipes or hoses.   <\/p><p>In addition to <a href=\"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-fittings\/\" target=\"_self\" title=\"Hydraulic FittingsHydraulic fittings refer to all components used to connect pipes and hoses that have at least one thread. Most hydraulic fittings feature two threaded sections for fast and secure&hellip;\" class=\"encyclopedia\">hydraulic fittings<\/a>, there are other connectors in hydraulic connection technology for various hydraulic applications:<\/p><ul><li>ORFS fittings<\/li><li>Sealing cone fittings<\/li><li>Weld fittings<\/li><li><a href=\"https:\/\/www.bf-hydraulik.com\/rueckschlagventil.html\">Check valves<\/a><\/li><li><a href=\"https:\/\/www.bf-hydraulik.com\/en\/cutting-ring-fittings\/\" target=\"_self\" title=\"Cutting ring fittings for connections in hydraulic linesHydraulic systems are characterized by a liquid medium and high internal pressures. They are also subject to large temperature differences. These present major&hellip;\" class=\"encyclopedia\">Cutting ring fittings<\/a><\/li><li>Flange fittings<\/li><li>Custom parts and individual fabrications<\/li><\/ul><h2>Cutting ring type hydraulic fittings<\/h2><p>As an example of a typical hydraulic fitting, a specific type of hydraulic connection technology is discussed in more detail below.<\/p><p><a href=\"https:\/\/www.bf-hydraulik.com\/en\/cutting-ring-fittings\/\" target=\"_self\" title=\"Cutting ring fittings for connections in hydraulic linesHydraulic systems are characterized by a liquid medium and high internal pressures. They are also subject to large temperature differences. These present major&hellip;\" class=\"encyclopedia\">Cutting ring fittings<\/a> are a connection technology for pipes developed for very high pressures. They are also commonly known as <a href=\"https:\/\/www.bf-hydraulik.com\/en\/ermeto-fittings\/\" target=\"_self\" title=\"Ermeto fittingsThe cutting-ring principle of Ermeto fittings was invented and developed by Ermeto back in the 1930s. This type of fitting quickly gained popularity mainly due to its very simple&hellip;\" class=\"encyclopedia\">Ermeto fittings<\/a>. This name can be traced back to the Ermeto company, which developed this type of connection technology in the 1930s. The name Ermeto is derived from the Greek word for hermetically sealed, hermetos.   <\/p><p>A connection with <a href=\"https:\/\/www.bf-hydraulik.com\/en\/cutting-ring-fittings\/\" target=\"_self\" title=\"Cutting ring fittings for connections in hydraulic linesHydraulic systems are characterized by a liquid medium and high internal pressures. They are also subject to large temperature differences. These present major&hellip;\" class=\"encyclopedia\">cutting ring fittings<\/a> requires the cutting ring fitting body, a special union nut, the cutting ring, and the two pipes to be connected. These fittings are standardized according to EN ISO 8434 and DIN 2353 and are used particularly in hydraulics. The conical body is a metal clamping cone with a 24-degree sealing cone, which is connected to the nut with a metric thread.  <\/p><p>Fittings of this type can withstand pressures from 350 bar up to 600 bar. The union nut, which is also tapered on the inside, compresses the cutting ring when tightened. This causes the wedge-shaped inner side of the ring to cut into the pipe wall, creating a fluid-tight positive fit.  <\/p><h3>Other Hydraulic Fittings<\/h3><p>There are various ways to connect multiple pipes in a <a href=\"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-system\/\" target=\"_self\" title=\"Hydraulic system: design &amp; applications explained simplyA hydraulic system is used to apply large forces in a targeted manner over a defined distance with minimal effort. The underlying hydraulic principle&hellip;\" class=\"encyclopedia\">hydraulic system<\/a>. For example, there is the option of a compression fitting. In a compression fitting, a conventional sealing or clamping ring is pressed onto the slightly conical body using a union nut.  <\/p><p>This type of connection technology has the disadvantage that it can only withstand low pressures. Furthermore, the components cannot be reused. This type features two clamping rings. The front clamping ring is tensioned by tightening the thread, which creates the sealing effect. The fitting body is pressed against the surface of the pipe. At the rear clamping ring, the pipe is gripped just behind the point where the pipe is held by the nose of the clamping ring. The resulting radial holding or hinge effect ensures significantly better and long-term resistance to any vibrations.      <\/p><p>The greatest advantage of this type of connection technology is that, compared to <a href=\"https:\/\/www.bf-hydraulik.com\/en\/cutting-ring-fittings\/\" target=\"_self\" title=\"Cutting ring fittings for connections in hydraulic linesHydraulic systems are characterized by a liquid medium and high internal pressures. They are also subject to large temperature differences. These present major&hellip;\" class=\"encyclopedia\">cutting ring fittings<\/a>, disassembly and repeated assembly of the hydraulic fitting is possible without damage.<\/p><p>Another type of pipe fitting is the so-called flared fitting, which consists of a sleeve, a union nut, and a body with a spherical end. However, a disadvantage is that special flaring tools are required for assembly. Furthermore, it is possible for stress notches or longitudinal cracks to occur in thinner pipes during the flaring process. The assembly of the aforementioned <a href=\"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-fittings\/\" target=\"_self\" title=\"Hydraulic FittingsHydraulic fittings refer to all components used to connect pipes and hoses that have at least one thread. Most hydraulic fittings feature two threaded sections for fast and secure&hellip;\" class=\"encyclopedia\">hydraulic fittings<\/a> is performed using an open-end wrench.   <\/p>\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-50 elementor-top-column elementor-element elementor-element-17578f6\" data-id=\"17578f6\" 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-18d5d30 elementor-widget elementor-widget-sidebar\" data-id=\"18d5d30\" data-element_type=\"widget\" data-widget_type=\"sidebar.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div style=\"display:none;\">Search<\/div><form role=\"search\" method=\"get\" class=\"encyclopedia search-form\" action=\"https:\/\/www.bf-hydraulik.com\/en\/encyclopedia\/\">\n    \n    \n    <label class=\"screen-reader-text\" for=\"encyclopedia-search-term\">Search<\/label>\n    <input type=\"text\" id=\"encyclopedia-search-term\" name=\"s\" class=\"search-field\" value=\"\" placeholder=\"Search&hellip;\">\n    <button type=\"submit\" class=\"search-submit submit button\" id=\"encyclopedia-search-submit\">Search<\/button>\n<\/form>\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color has-small-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/www.bf-hydraulik.com\/hydraulik-lexikon\/\" style=\"border-radius:0px;background-color:#005b9a\">Back to overview<\/a><\/div>\n<\/div>\n\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-99eb194 elementor-section-full_width elementor-section-stretched elementor-section-height-default elementor-section-height-default\" data-id=\"99eb194\" data-element_type=\"section\" data-settings='{\"stretch_section\":\"section-stretched\"}'>\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-6df5c98\" data-id=\"6df5c98\" 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-2e10e6f elementor-widget elementor-widget-shortcode\" data-id=\"2e10e6f\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\t\t<div data-elementor-type=\"section\" data-elementor-id=\"2947\" class=\"elementor elementor-2947 elementor-223 elementor-223\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c017d14 elementor-section-full_width elementor-section-stretched bgKnowHowCaller elementor-section-height-default elementor-section-height-default\" data-id=\"c017d14\" data-element_type=\"section\" data-settings='{\"stretch_section\":\"section-stretched\"}'>\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-35f2767\" data-id=\"35f2767\" 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-deaeec8 elementor-widget elementor-widget-text-editor\" data-id=\"deaeec8\" 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<h4>Questions, requests, placing an order?<\/h4><p>&raquo; You can submit an enquiry directly here!<\/p>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4a72297 contatcSectionEnd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4a72297\" 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-273fb42\" data-id=\"273fb42\" 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-2f43633 elementor-widget elementor-widget-shortcode\" data-id=\"2f43633\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f2946-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"2946\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/en\/wp-json\/wp\/v2\/encyclopedia\/2844#wpcf7-f2946-o1\" method=\"post\" class=\"wpcf7-form init wpcf7-acceptance-as-validation\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\">\n<div style=\"display: none;\">\n<input type=\"hidden\" name=\"_wpcf7\" value=\"2946\">\n<input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.0.6\">\n<input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\">\n<input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f2946-o1\">\n<input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\">\n<input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\">\n<\/div>\n<div class=\"row\">\n\t<div class=\"col-md-2\">\n\t\t<p><label for=\"formname\" class=\"inlineInputs\">Last Name*:<\/label>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"col-md-4\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"formname\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required form-control\" id=\"formname\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"formname\"><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"col-md-2\">\n\t\t<p><label for=\"formvorname\" class=\"inlineInputs\">First Name*:<\/label>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"col-md-4\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"formvorname\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required form-control\" id=\"formvorname\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"formvorname\"><\/span>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<div class=\"row\">\n\t<div class=\"col-md-2\">\n\t\t<p><label for=\"formemail\" class=\"inlineInputs\">Email*:<\/label>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"col-md-4\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"formemail\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email form-control\" id=\"formemail\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"email\" name=\"formemail\"><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"col-md-2\">\n\t\t<p><label for=\"formtelefon\" class=\"inlineInputs\">Phone:<\/label>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"col-md-4\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"formtelefon\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text form-control\" id=\"formtelefon\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"formtelefon\"><\/span>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<div class=\"row\">\n\t<div class=\"col-12\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"mitteilung\"><textarea cols=\"40\" rows=\"10\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" name=\"mitteilung\">Your message to us ...<\/textarea><\/span>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<div class=\"row mt-2 mb-3\">\n\t<div class=\"col-12\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"newsletter\"><span class=\"wpcf7-form-control wpcf7-checkbox\"><span class=\"wpcf7-list-item first last\"><label><input type=\"checkbox\" name=\"newsletter[]\" value=\"I would like to subscribe to the newsletter.\"><span class=\"wpcf7-list-item-label\">I would like to subscribe to the newsletter.<\/span><\/label><\/span><\/span><\/span>\n\t\t<\/p>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"datenschutz\"><span class=\"wpcf7-form-control wpcf7-acceptance\"><span class=\"wpcf7-list-item\"><label><input type=\"checkbox\" name=\"datenschutz\" value=\"1\" aria-invalid=\"false\"><span class=\"wpcf7-list-item-label\">Yes, I have read the <a href=\"\/datenschutzerklaerung\/\" target=\"_blank\">privacy policy<\/a> and agree that the data I have provided may be collected and stored electronically. My data will be used strictly for the purpose of processing and responding to my inquiry. By submitting the contact form, I agree to this processing.<\/span><\/label><\/span><\/span><\/span>\n\t\t<\/p>\n\t\t<p class=\"aiowps-captcha hide-when-displaying-tfa-input\"><label for=\"aiowps-captcha-answer\">Please enter an answer in digits:<\/label>\n\t\t<\/p>\n\t\t<div class=\"aiowps-captcha-equation hide-when-displaying-tfa-input\">\n\t\t\t<p><strong>1 &times; 4 = <input type=\"hidden\" name=\"aiowps-captcha-string-info\" class=\"aiowps-captcha-string-info\" value=\"xw29mmtiii\"><input type=\"hidden\" name=\"aiowps-captcha-temp-string\" class=\"aiowps-captcha-temp-string\" value=\"1776612931\"><input type=\"text\" size=\"2\" class=\"aiowps-captcha-answer\" name=\"aiowps-captcha-answer\" value=\"\" autocomplete=\"off\"><\/strong>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"aiowps-captcha\"><\/span><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Send inquiry\">\n\t\t<\/p>\n\t<\/div>\n<\/div><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n<\/div>\n\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<\/div>\n\t\t<\/div>\n\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<\/div>\n\t\t","protected":false},"author":1,"template":"elementor_header_footer","encyclopedia-tag":[],"class_list":["post-2844","encyclopedia","type-encyclopedia","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.bf-hydraulik.com\/en\/wp-json\/wp\/v2\/encyclopedia\/2844","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bf-hydraulik.com\/en\/wp-json\/wp\/v2\/encyclopedia"}],"about":[{"href":"https:\/\/www.bf-hydraulik.com\/en\/wp-json\/wp\/v2\/types\/encyclopedia"}],"author":[{"embeddable":true,"href":"https:\/\/www.bf-hydraulik.com\/en\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":1,"href":"https:\/\/www.bf-hydraulik.com\/en\/wp-json\/wp\/v2\/encyclopedia\/2844\/revisions"}],"predecessor-version":[{"id":2846,"href":"https:\/\/www.bf-hydraulik.com\/en\/wp-json\/wp\/v2\/encyclopedia\/2844\/revisions\/2846"}],"wp:attachment":[{"href":"https:\/\/www.bf-hydraulik.com\/en\/wp-json\/wp\/v2\/media?parent=2844"}],"wp:term":[{"taxonomy":"encyclopedia-tag","embeddable":true,"href":"https:\/\/www.bf-hydraulik.com\/en\/wp-json\/wp\/v2\/encyclopedia-tag?post=2844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}