{"id":6106,"date":"2025-09-24T15:24:53","date_gmt":"2025-09-24T15:24:53","guid":{"rendered":"https:\/\/www.raxpanel.com\/?page_id=6106"},"modified":"2026-08-02T23:41:05","modified_gmt":"2026-08-02T23:41:05","slug":"%d0%bf%d1%80%d0%b5%d0%b4%d0%b2%d0%b0%d1%80%d0%b8%d1%82%d0%b5%d0%bb%d1%8c%d0%bd%d0%be-%d0%b8%d0%b7%d0%be%d0%bb%d0%b8%d1%80%d0%be%d0%b2%d0%b0%d0%bd%d0%bd%d0%b0%d1%8f-%d0%bf%d0%b0%d0%bd%d0%b5%d0%bb%d1%8c","status":"publish","type":"page","link":"https:\/\/www.raxpanel.com\/ru\/architectural-insulated-panel\/pre-insulated-duct-panel\/","title":{"rendered":"\u041f\u0440\u0435\u0434\u0432\u0430\u0440\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u0430\u044f \u043f\u0430\u043d\u0435\u043b\u044c \u0432\u043e\u0437\u0434\u0443\u0445\u043e\u0432\u043e\u0434\u0430"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><div class=\"vc_row wpb_row vc_row-fluid vc_custom_1758438261005\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 style=\"text-align: center;\">Pre Insulated Duct Panel<\/h2>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n\n<p>Pre insulated duct panels are rigid foam boards with bonded aluminum foil or prepainted steel facings, manufactured as flat stock that fabricators cut, groove, and fold into finished HVAC ductwork. The insulation is integral to the panel wall, eliminating the separate insulation wrapping step required by conventional sheet metal ducts and reducing installed weight by up to 70%.<\/p>\n<p>Core options include phenolic foam (thermal conductivity as low as 0.022 W\/m&middot;K), polyisocyanurate (PIR), and polyurethane (PU). Each core type carries a different reaction-to-fire classification relevant to air distribution code compliance: phenolic achieves Class A under UL 181, while PIR and PU variants meet Class 1 requirements. All cores use CFC-free blowing agents with zero ozone depletion potential.<\/p>\n<p>Fabrication follows a standardized workflow: CNC routing cuts panel blanks to developed duct dimensions, V-groove cuts define fold lines at 45&deg; or 90&deg;, panels are folded into rectangular or round sections, and joints are sealed with aluminum tape or compatible adhesive. A trained two-person team produces approximately 200 square meters of finished ductwork per shift \u2014 roughly three times the throughput of sheet metal fabrication with external insulation.<\/p>\n<p>Applications include commercial office towers, hospitals, cleanrooms, airports, and industrial process buildings where thermal efficiency, low air leakage, and rapid installation are specified.<\/p>\n<p><\/vc_column_text&#093;&#091;\/vc_column&#093;&#091;vc_column width=\"1\/2\"&#093;&#091;dt_media_gallery_carousel image_sizing=\"proportional\" image_border_radius=\"0px\" image_scale_animation_on_hover=\"disabled\" image_hover_bg_color=\"disabled\" slides_on_wide_desk=\"1\" slides_on_desk=\"1\" slides_on_lapt=\"1\" slides_on_h_tabs=\"1\" slides_on_v_tabs=\"1\" item_space=\"0\" show_zoom=\"n\" arrow_bg_width=\"20x\" arrow_border_radius=\"0px\" arrow_border_width=\"0px\" r_arrow_icon_paddings=\"0px 0px 0px 0px\" r_arrow_v_offset=\"0px\" r_arrow_h_offset=\"\" l_arrow_icon_paddings=\"0px 0px 0px 0px\" l_arrow_v_offset=\"0px\" l_arrow_h_offset=\"\" show_bullets=\"y\" bullets_h_offset=\"0px\" include=\"6239\"&#093;&#091;\/vc_column&#093;&#091;\/vc_row&#093;&#091;vc_row&#093;&#091;vc_column&#093;&#091;ultimate_modal btn_size=\"lg\" btn_bg_color=\"#f39402\" btn_text=\"Send Inquiry\" overlay_bg_opacity=\"0\" modal_border_style=\"solid\" modal_border_width=\"2\" modal_border_color=\"#000000\" modal_border_radius=\"0\" img_size=\"20\" img_close_background_color=\"#2e72ab\" close_icon_position=\"popup-edge-top-right\" btn_txt_color=\"#ffffff\" css_modal_box=\".vc_custom_1758438403897{margin-top: -20px !important;}\"&#093;\n\n\n<p style=\"text-align: center;\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f9-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"9\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/ru\/wp-json\/wp\/v2\/pages\/6106#wpcf7-f9-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"9\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.7\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f9-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"text-383\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your name*\" value=\"\" type=\"text\" name=\"text-383\" \/><\/span><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"email-983\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your email*\" value=\"\" type=\"email\" name=\"email-983\" \/><\/span><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"textarea-963\"><textarea cols=\"40\" rows=\"10\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your message*\" name=\"textarea-963\"><\/textarea><\/span><br \/>\n<input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Submit Your Requirement\" \/><br \/>\n<span style=\"font-size: 9pt;\"><span style=\"color: #999999;\">This site is protected by reCAPTCHA and the Google <\/span><a href=\"https:\/\/policies.google.com\/privacy\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #66b3f2;\">Privacy Policy<\/span><\/a> <span style=\"color: #999999;\">and<\/span> <span style=\"color: #66b3f2;\"><a style=\"color: #66b3f2;\" href=\"https:\/\/policies.google.com\/terms\" target=\"_blank\" rel=\"noopener\">Terms of Service<\/a><\/span>\u00a0<span style=\"color: #999999;\">apply<\/span>.<\/span>\n<\/p><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n\n[\/ultimate_modal]<div class=\"ult-spacer spacer-6aa4786f00b4c\" data-id=\"6aa4786f00b4c\" data-height=\"\" data-height-mobile=\"\" data-height-tab=\"\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid vc_custom_1608529244192\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 style=\"text-align: center;\">Pre Insulated Duct Panel Supplier for Maximum Energy Savings<\/h2>\n<p>RaxPanel manufactures pre-insulated duct panels on a continuous lamination line that bonds aluminum foil or prepainted steel facings to rigid foam cores under controlled temperature and pressure. Duct panels require a different production discipline from architectural cladding: the foil facing must maintain uniform adhesion across the full sheet because any delaminated area becomes an air leakage path once the panel is folded into a duct section and pressurized.<\/p>\n<p>Our foil-facing lamination uses heated nip rollers that activate a thermoset adhesive layer, producing a peel strength verified by T-peel testing on samples from each production run. Core density is monitored by inline weight measurement, because density variation directly affects both thermal conductivity and compressive strength at fold lines. Panels are trimmed to width tolerance of \u00b10.5 mm to ensure consistent CNC registration during downstream fabrication.<\/p>\n<p>For projects requiring factory-fabricated duct sections rather than flat panel stock, we cut, groove, and fold panels to shop drawings using 5-axis CNC routing tables. Finished sections are nested for packing efficiency and labeled by installation zone, reducing on-site sorting time.<\/p>\n<p><\/vc_column_text&#093;&#091;ultimate_modal btn_size=\"lg\" btn_bg_color=\"#f39402\" btn_text=\"Send Inquiry\" overlay_bg_opacity=\"0\" modal_border_style=\"solid\" modal_border_width=\"2\" modal_border_color=\"#000000\" modal_border_radius=\"0\" img_size=\"20\" img_close_background_color=\"#2e72ab\" close_icon_position=\"popup-edge-top-right\" btn_txt_color=\"#ffffff\" css_modal_box=\".vc_custom_1691416095618{margin-top: -20px !important;}\"&#093;&#091;contact-form-7 id=\"9\" title=\"Contact form 1\"&#093;&#091;\/ultimate_modal&#093;&#091;vc_tabs interval=\"0\" style=\"tab-style-four\"&#093;&#091;vc_tab title=\"Data Sheet\" tab_id=\"1608537631096-3-6\"&#093;&#091;vc_column_text&#093;\n\n\n\n\n<div style=\"overflow-x: auto; -webkit-overflow-scrolling: touch;\">\n<table style=\"width: 100%; border-collapse: collapse;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\">Parameter<\/th>\n<th style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\">Unit<\/th>\n<th style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\">Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Width<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">mm<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">1200 (standard, customizable)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Length<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">mm<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">&le; 4000<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Thickness<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">mm<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">20 &#8211; 100<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Core Material<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">&#8211;<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Phenolic, Polyurethane (PU), Polyisocyanurate (PIR)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Facing Material &#8211; Aluminum Foil Thickness<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">mm<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">0.04 &#8211; 0.1<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Facing Material &#8211; Steel Thickness<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">mm<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Up to 0.6 (prepainted galvanized steel)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Density<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">kg\/m&sup3;<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">35 &#8211; 120<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Thermal Conductivity<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">W\/m&middot;K<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">0.022<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Compressive Strength<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">MPa<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">&ge; 0.18<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Fire Rating<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">&#8211;<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Phenolic: Class A; PIR: B1; PU: B2 (per UL 181 Class 1 Air Duct)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Water Absorption<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">%<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">&le; 1.9<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Operating Temperature Range<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">&deg;C<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">-40 to 80 (variants from -250 to 150 available)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Maximum Allowable Wind Velocity<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">m\/s<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">&le; 12<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">Continuous Running Maximum Temperature<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">&deg;C<\/td>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">&le; 120<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"ult-spacer spacer-6aa4786f0129f\" data-id=\"6aa4786f0129f\" data-height=\"40\" data-height-mobile=\"40\" data-height-tab=\"40\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" 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data-overlay-pattern=\"\" data-overlay-pattern-opacity=\"\" data-overlay-pattern-size=\"\"    ><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 style=\"text-align: center;\"><strong>Related Products<\/strong><\/h2>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"vc_row wpb_row vc_inner vc_row-fluid vc_column-gap-35\"><div class=\"wpb_column vc_column_container vc_col-sm-4\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;border-style:solid;border-width:1px;border-color:#d3d3d3;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"  data-hover_border_color=\"#d3d3d3\"     data-border_color=\"#d3d3d3\" >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1770123735497\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<a href=\"\/architectural-insulated-panel\/pre-insulated-duct-panel\/\" target=\"_self\"  class=\"vc_single_image-wrapper   vc_box_border_grey rollover\" data-large_image_width=\"1120\" data-large_image_height = \"680\"    data-pretty-share=\"facebook,twitter,linkedin\"  ><img decoding=\"async\" width=\"1120\" height=\"680\" src=\"https:\/\/www.raxpanel.com\/wp-content\/uploads\/Pre-Insulated-Duct-Panel.jpg\" class=\"vc_single_image-img attachment-full\" alt=\"\" title=\"Pre Insulated Duct Panel\" srcset=\"https:\/\/www.raxpanel.com\/wp-content\/uploads\/Pre-Insulated-Duct-Panel.jpg 1120w, https:\/\/www.raxpanel.com\/wp-content\/uploads\/Pre-Insulated-Duct-Panel-300x182.jpg 300w, https:\/\/www.raxpanel.com\/wp-content\/uploads\/Pre-Insulated-Duct-Panel-1024x622.jpg 1024w, https:\/\/www.raxpanel.com\/wp-content\/uploads\/Pre-Insulated-Duct-Panel-768x466.jpg 768w\" sizes=\"(max-width: 1120px) 100vw, 1120px\"  data-dt-location=\"https:\/\/www.raxpanel.com\/ru\/architectural-insulated-panel\/pre-insulated-duct-panel\/pre-insulated-duct-panel-2\/\" \/><\/a>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: center;\"><a href=\"\/architectural-insulated-panel\/pre-insulated-duct-panel\/\"><strong>Pre Insulated Duct Panel<\/strong><\/a><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<div id=\"modal-trg-txt-wrap-8901\" class=\"ult-modal-input-wrapper ult-adjust-bottom-margin   vc_custom_1691416107773  \" data-keypress-control=\"keypress-control-enable\" data-overlay-control=\"overlay-control-enable\"><button  data-ultimate-target='#modal-trg-txt-wrap-8901 .btn-modal'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}'  style=\"background:#f39402;border-color:#f39402;color:#ffffff; \" data-class-id=\"content-6aa4786f056c22-27311448\" class=\"btn-modal ult-responsive btn-primary btn-modal-lg overlay-show ult-align-center btn-id-6aa4786f056c22-27311448\" data-overlay-class=\"overlay-cornerbottomleft\">Send Inquiry<\/button><\/div>\n<div class=\"ult-overlay content-6aa4786f056c22-27311448 \" data-class=\"content-6aa4786f056c22-27311448\" id=\"button-click-overlay\" style=\"background:rgba(51,51,51,0); display:none;\">\n\t<div class=\"ult_modal ult-fade ult-small\">\n\t<div class=\"ult-overlay-close popup-edge-top-right\" style=\"width:20px;height:20px; background-color: #2e72ab;border-radius: 50%;padding:10px;box-sizing: content-box; top:-20px;right:-20px;\"><div class=\"ult-overlay-close-inside\">Close<\/div><\/div>\n\t\t<div id=\"ult-modal-wrap-5358\" class=\"ult_modal-content ult-hide\" style=\"border-style:solid;border-width:2px;border-radius:0px;border-color:#000000;\">\n\t\t\t<div  data-ultimate-target='#ult-modal-wrap-5358 .ult_modal-body'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}'  class=\"ult_modal-body ult-responsive ult-html\" style=\"\">\n\t\t\t\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f9-o4\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"9\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/ru\/wp-json\/wp\/v2\/pages\/6106#wpcf7-f9-o4\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"9\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.7\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f9-o4\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"text-383\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your name*\" value=\"\" type=\"text\" name=\"text-383\" \/><\/span><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"email-983\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your email*\" value=\"\" type=\"email\" name=\"email-983\" \/><\/span><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"textarea-963\"><textarea cols=\"40\" rows=\"10\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your message*\" name=\"textarea-963\"><\/textarea><\/span><br \/>\n<input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Submit Your Requirement\" \/><br \/>\n<span style=\"font-size: 9pt;\"><span style=\"color: #999999;\">This site is protected by reCAPTCHA and the Google <\/span><a href=\"https:\/\/policies.google.com\/privacy\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #66b3f2;\">Privacy Policy<\/span><\/a> <span style=\"color: #999999;\">and<\/span> <span style=\"color: #66b3f2;\"><a style=\"color: #66b3f2;\" href=\"https:\/\/policies.google.com\/terms\" target=\"_blank\" rel=\"noopener\">Terms of Service<\/a><\/span>\u00a0<span style=\"color: #999999;\">apply<\/span>.<\/span>\n<\/p><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n\n\t\t\t<\/div>\n\t<\/div>\n\t<\/div>\n<\/div>\t\t<\/div><\/div><div class=\"ult-spacer spacer-6aa4786f06ed1\" data-id=\"6aa4786f06ed1\" data-height=\"20\" data-height-mobile=\"20\" data-height-tab=\"20\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-4\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;border-style:solid;border-width:1px;border-color:#d3d3d3;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"  data-hover_border_color=\"#d3d3d3\"     data-border_color=\"#d3d3d3\" >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1770123791015\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<a href=\"\/architectural-insulated-panel\/insulated-ceiling-panel\/\" target=\"_self\"  class=\"vc_single_image-wrapper   vc_box_border_grey rollover\" data-large_image_width=\"1120\" data-large_image_height = \"680\"    data-pretty-share=\"facebook,twitter,linkedin\"  ><img decoding=\"async\" width=\"1120\" height=\"680\" src=\"https:\/\/www.raxpanel.com\/wp-content\/uploads\/Insulated-Ceiling-Panel.jpg\" class=\"vc_single_image-img attachment-full\" alt=\"\" title=\"Insulated Ceiling Panel\" srcset=\"https:\/\/www.raxpanel.com\/wp-content\/uploads\/Insulated-Ceiling-Panel.jpg 1120w, https:\/\/www.raxpanel.com\/wp-content\/uploads\/Insulated-Ceiling-Panel-300x182.jpg 300w, https:\/\/www.raxpanel.com\/wp-content\/uploads\/Insulated-Ceiling-Panel-1024x622.jpg 1024w, https:\/\/www.raxpanel.com\/wp-content\/uploads\/Insulated-Ceiling-Panel-768x466.jpg 768w\" sizes=\"(max-width: 1120px) 100vw, 1120px\"  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overlay-show ult-align-center btn-id-6aa4786f0784f0-98643820\" data-overlay-class=\"overlay-cornerbottomleft\">Send Inquiry<\/button><\/div>\n<div class=\"ult-overlay content-6aa4786f0784f0-98643820 \" data-class=\"content-6aa4786f0784f0-98643820\" id=\"button-click-overlay\" style=\"background:rgba(51,51,51,0); display:none;\">\n\t<div class=\"ult_modal ult-fade ult-small\">\n\t<div class=\"ult-overlay-close popup-edge-top-right\" style=\"width:20px;height:20px; background-color: #2e72ab;border-radius: 50%;padding:10px;box-sizing: content-box; top:-20px;right:-20px;\"><div class=\"ult-overlay-close-inside\">Close<\/div><\/div>\n\t\t<div id=\"ult-modal-wrap-4720\" class=\"ult_modal-content ult-hide\" style=\"border-style:solid;border-width:2px;border-radius:0px;border-color:#000000;\">\n\t\t\t<div  data-ultimate-target='#ult-modal-wrap-4720 .ult_modal-body'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}'  class=\"ult_modal-body ult-responsive ult-html\" style=\"\">\n\t\t\t\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f9-o5\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"9\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/ru\/wp-json\/wp\/v2\/pages\/6106#wpcf7-f9-o5\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"9\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.7\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f9-o5\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"text-383\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your name*\" value=\"\" type=\"text\" name=\"text-383\" \/><\/span><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"email-983\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your email*\" value=\"\" type=\"email\" name=\"email-983\" \/><\/span><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"textarea-963\"><textarea cols=\"40\" rows=\"10\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your message*\" name=\"textarea-963\"><\/textarea><\/span><br \/>\n<input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Submit Your Requirement\" \/><br \/>\n<span 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vc_column_container vc_col-sm-4\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;border-style:solid;border-width:1px;border-color:#d3d3d3;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"  data-hover_border_color=\"#d3d3d3\"     data-border_color=\"#d3d3d3\" >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1770123848925\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<a href=\"\/architectural-insulated-panel\/partition-wall-insulated-panel\/\" target=\"_self\"  class=\"vc_single_image-wrapper   vc_box_border_grey rollover\" data-large_image_width=\"1120\" data-large_image_height = \"680\"    data-pretty-share=\"facebook,twitter,linkedin\"  ><img decoding=\"async\" width=\"1120\" height=\"680\" src=\"https:\/\/www.raxpanel.com\/wp-content\/uploads\/Partition-Wall-Insulated-Panel.jpg\" class=\"vc_single_image-img attachment-full\" alt=\"\" title=\"Partition Wall Insulated Panel\" srcset=\"https:\/\/www.raxpanel.com\/wp-content\/uploads\/Partition-Wall-Insulated-Panel.jpg 1120w, https:\/\/www.raxpanel.com\/wp-content\/uploads\/Partition-Wall-Insulated-Panel-300x182.jpg 300w, https:\/\/www.raxpanel.com\/wp-content\/uploads\/Partition-Wall-Insulated-Panel-1024x622.jpg 1024w, https:\/\/www.raxpanel.com\/wp-content\/uploads\/Partition-Wall-Insulated-Panel-768x466.jpg 768w\" sizes=\"(max-width: 1120px) 100vw, 1120px\"  data-dt-location=\"https:\/\/www.raxpanel.com\/ru\/architectural-insulated-panel\/partition-wall-insulated-panel\/partition-wall-insulated-panel-2\/\" \/><\/a>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: center;\"><a 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action=\"\/ru\/wp-json\/wp\/v2\/pages\/6106#wpcf7-f9-o6\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"9\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.7\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f9-o6\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"text-383\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your name*\" value=\"\" type=\"text\" name=\"text-383\" \/><\/span><br \/>\n<span class=\"wpcf7-form-control-wrap\" 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Policy<\/span><\/a> <span style=\"color: #999999;\">and<\/span> <span style=\"color: #66b3f2;\"><a style=\"color: #66b3f2;\" href=\"https:\/\/policies.google.com\/terms\" target=\"_blank\" rel=\"noopener\">Terms of Service<\/a><\/span>\u00a0<span style=\"color: #999999;\">apply<\/span>.<\/span>\n<\/p><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n\n\t\t\t<\/div>\n\t<\/div>\n\t<\/div>\n<\/div>\t\t<\/div><\/div><div class=\"ult-spacer spacer-6aa4786f0b15e\" data-id=\"6aa4786f0b15e\" data-height=\"20\" data-height-mobile=\"20\" data-height-tab=\"20\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-spacer spacer-6aa4786f0b64c\" data-id=\"6aa4786f0b64c\" data-height=\"40\" data-height-mobile=\"40\" data-height-tab=\"40\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div><\/div><\/div><\/div><\/div>\n<div class=\"vc_row wpb_row vc_row-fluid vc_custom_1709564459818 vc_column-gap-35\"><div class=\"wpb_column vc_column_container vc_col-sm-8\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<div style=\"font-family: inherit; color: #333; line-height: 1.6; margin-top: 10px;\">\n<h2>Pre Insulated Duct Panel Engineering Guide: Core Selection, Air Leakage &amp; Fabrication Workflow<\/h2>\n<p>Pre-insulated duct panels replace two separate trades \u2014 sheet metal fabrication and insulation wrapping \u2014 with a single material that is both structure and insulator. The specification decisions that most affect system performance are core material selection (which determines thermal conductivity and code classification), panel thickness (which sets the R-value and duct rigidity), and joint sealing method (which governs installed air leakage).<\/p>\n<div style=\"background: linear-gradient(135deg, #f4f8fc 0%, #ffffff 100%); border: 1px solid #d0e1f9; border-left: 4px solid #2e72ab; padding: 18px 22px; margin: 25px 0; border-radius: 8px; box-shadow: 0 4px 14px rgba(46, 114, 171, 0.08);\">\n    <strong style=\"color: #2e72ab; font-size: 15px;\">\ud83d\udca1 Pro Tip: Why Integral Insulation Eliminates the Thermal Bridge Problem<\/strong><br \/>\n    <span style=\"font-size: 14px; color: #444;\">Conventional sheet metal ducts wrapped with external insulation leave uninsulated gaps at hanger straps, flange connections, and damper penetrations. These thermal bridges account for 15\u201325% of total duct heat loss in field measurements. Pre-insulated panels make the foam core the duct wall itself, so every square centimeter of duct surface carries the full R-value with no bypass paths.<\/span>\n  <\/div>\n<h3>1. Core Material Selection: Phenolic vs. PIR vs. PU<\/h3>\n<p>The three core chemistries serve different project priorities. Phenolic foam achieves the lowest thermal conductivity (0.022 W\/m&middot;K) and the highest reaction-to-fire classification (Class A per UL 181), making it the default specification for hospitals, high-rise buildings, and projects with strict smoke-development limits. PIR offers a balance of thermal performance (0.024\u20130.028 W\/m&middot;K) and mechanical strength at fold lines, suited to large rectangular ducts where panel rigidity during handling is critical. PU provides the highest compressive strength and is specified for ducts subject to external mechanical loads or negative-pressure exhaust applications.<\/p>\n<div style=\"width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 20px 0; border: 1px solid #e2e8f0; border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.03); overflow: hidden;\">\n<table style=\"min-width: 600px; width: 100%; border-collapse: collapse; background: #ffffff;\">\n<thead>\n<tr style=\"background-color: #f8fafc; color: #334155;\">\n<th style=\"padding: 12px 14px; text-align: left; border-bottom: 2px solid #e2e8f0;\">Core Type<\/th>\n<th style=\"padding: 12px 14px; text-align: left; border-bottom: 2px solid #e2e8f0;\">Thermal Conductivity<\/th>\n<th style=\"padding: 12px 14px; text-align: left; border-bottom: 2px solid #e2e8f0;\">Best Application<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom: 1px solid #f1f5f9;\">\n<td style=\"padding: 12px 14px; font-weight: bold;\">Phenolic<\/td>\n<td style=\"padding: 12px 14px;\">0.022 W\/m&middot;K<\/td>\n<td style=\"padding: 12px 14px;\">Hospitals, high-rise, smoke-sensitive occupancies<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9; background-color: #f9fbfd;\">\n<td style=\"padding: 12px 14px; font-weight: bold;\">PIR<\/td>\n<td style=\"padding: 12px 14px;\">0.024\u20130.028 W\/m&middot;K<\/td>\n<td style=\"padding: 12px 14px;\">Large rectangular ducts, commercial HVAC, schools<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9;\">\n<td style=\"padding: 12px 14px; font-weight: bold;\">PU<\/td>\n<td style=\"padding: 12px 14px;\">0.024\u20130.028 W\/m&middot;K<\/td>\n<td style=\"padding: 12px 14px;\">Negative-pressure exhaust, mechanically loaded ducts<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3>2. Air Leakage Performance and Energy Impact<\/h3>\n<p>Duct air leakage wastes conditioned air and increases fan energy. SMACNA defines leakage classes 1 through 6, where Class 1 permits the least leakage. Pre-insulated panels with properly sealed joints (aluminum foil tape plus mastic at transverse connections) achieve Class 1\u20133 performance depending on joint detail and static pressure. For a typical commercial system operating at 500 Pa positive pressure, Class 1 leakage is below 0.5 L\/s per m&sup2; of duct surface \u2014 roughly one-third the leakage of unsealed sheet metal ductwork.<\/p>\n<h3>3. CNC Fabrication Workflow<\/h3>\n<div style=\"background: #ffffff; border: 1px solid #e2e8f0; padding: 18px 22px; border-radius: 8px; margin: 20px 0; box-shadow: 0 4px 12px rgba(0,0,0,0.03); border-top: 3px solid #2e72ab;\">\n    <strong>\ud83d\udd27 Standard Fabrication Sequence:<\/strong><\/p>\n<ul style=\"margin-top: 8px; margin-bottom: 0;\">\n<li><strong>Step 1 \u2013 Nesting:<\/strong> CAD software nests duct blanks on 1200 \u00d7 4000 mm panels to minimize offcut waste (typical yield: 85\u201392%).<\/li>\n<li><strong>Step 2 \u2013 CNC routing:<\/strong> A 5-axis router cuts blanks and cuts V-grooves (45&deg; for rectangular ducts, 22.5&deg; for octagonal transitions) to a depth that leaves 0.5\u20131.0 mm of facing intact as a fold hinge.<\/li>\n<li><strong>Step 3 \u2013 Folding:<\/strong> Panels fold along grooves into rectangular, round, or oval sections. Fold accuracy is \u00b11&deg; when groove depth is controlled within tolerance.<\/li>\n<li><strong>Step 4 \u2013 Joint sealing:<\/strong> Longitudinal seams are bonded with compatible adhesive and reinforced with aluminum tape. Transverse joints use flange connectors with gasket seals.<\/li>\n<\/ul>\n<\/div>\n<h3>4. Condensation Control on Duct Exterior<\/h3>\n<p>When cold air (12\u201316&deg;C supply temperature) flows through ducts in warm, humid ceiling plenums, the duct exterior surface must remain above the local dew point to prevent condensation. A 20 mm phenolic panel (&lambda; = 0.022 W\/m&middot;K) provides R-0.91, which maintains the exterior surface above dew point in plenums up to 30&deg;C at 70% RH. For high-humidity environments or lower supply temperatures, 30 mm or 40 mm panels are specified. The closed-cell structure (water absorption &le; 1.9%) prevents moisture migration through the core even if the exterior foil is locally damaged.<\/p>\n<h3>5. Weight and Installation Speed Comparison<\/h3>\n<p>A 20 mm pre-insulated duct panel weighs approximately 1.3\u20131.8 kg\/m&sup2; depending on core density and facing type. Equivalent galvanized steel duct (0.6 mm sheet) plus 25 mm external insulation weighs 5.5\u20137.0 kg\/m&sup2;. The 70% weight reduction means lighter support structures, fewer hanger rods, and less labor for overhead installation. Field productivity data shows two-person crews installing 150\u2013200 m&sup2; of finished ductwork per 8-hour shift, compared to 50\u201370 m&sup2; for sheet metal fabrication plus insulation wrapping.<\/p>\n<h3>6. Joint Connection Methods and Flange Systems<\/h3>\n<p>Transverse duct connections use one of three systems depending on pressure class and duct size: (1) Aluminum flange profiles with EPDM gaskets for rectangular ducts up to 1000 mm width at pressures below 1000 Pa; (2) PVC or aluminum slide-on flanges for smaller ducts below 500 mm; (3) TDC (Transverse Duct Connector) flanges with corner clips for large ducts requiring bolted connections. All flange systems maintain the thermal break at the joint, preventing the metal-to-metal contact that creates condensation points in sheet metal systems.<\/p>\n<p>  <!-- 7 DUCT-SPECIFIC FAQs --><\/p>\n<div style=\"margin-top: 35px; padding-top: 25px; \">\n<h3 style=\"text-align: center; margin-bottom: 20px;\">Frequently Asked Questions (FAQS)<\/h3>\n<details style=\"background: #ffffff; border: 1px solid #e2e8f0; padding: 14px 18px; border-radius: 8px; margin-bottom: 12px; cursor: pointer; box-shadow: 0 2px 8px rgba(0,0,0,0.03);\">\n<summary style=\"font-weight: bold; color: #222;\">1. Which core material should I specify for a hospital HVAC project?<\/summary>\n<div style=\"margin-top: 10px; color: #444;\">Phenolic foam is the standard specification for healthcare facilities. It achieves Class A reaction-to-fire classification under UL 181, produces minimal smoke development, and provides the lowest thermal conductivity (0.022 W\/m&middot;K) available in pre-insulated duct panels. Many hospital design guides explicitly require phenolic or equivalent Class A cores for all air distribution ductwork within occupied zones.<\/div>\n<\/details>\n<details style=\"background: #ffffff; border: 1px solid #e2e8f0; padding: 14px 18px; border-radius: 8px; margin-bottom: 12px; cursor: pointer; box-shadow: 0 2px 8px rgba(0,0,0,0.03);\">\n<summary style=\"font-weight: bold; color: #222;\">2. What air leakage class can be achieved with pre-insulated duct panels?<\/summary>\n<div style=\"margin-top: 10px; color: #444;\">With properly sealed joints (aluminum foil tape on longitudinal seams plus mastic-sealed flange connections), pre-insulated panels achieve SMACNA Leakage Class 1\u20133 depending on static pressure and joint detail. At 500 Pa positive pressure, Class 1 performance means less than 0.5 L\/s leakage per m&sup2; of duct surface. This is verified by pressure testing completed duct sections before commissioning.<\/div>\n<\/details>\n<details style=\"background: #ffffff; border: 1px solid #e2e8f0; padding: 14px 18px; border-radius: 8px; margin-bottom: 12px; cursor: pointer; box-shadow: 0 2px 8px rgba(0,0,0,0.03);\">\n<summary style=\"font-weight: bold; color: #222;\">3. Can panels be fabricated on-site, or must they be factory-cut?<\/summary>\n<div style=\"margin-top: 10px; color: #444;\">Both approaches are used. On-site fabrication requires a portable CNC router (or manual grooving tools for small projects), a folding jig, and adhesive\/tape supplies. A two-person crew produces 150\u2013200 m&sup2; per shift on-site. Factory fabrication is preferred for large projects or complex geometries (transitions, reducers, offsets) because 5-axis CNC tables achieve tighter dimensional accuracy and consistent groove depth. We supply flat panels for on-site fabrication or pre-fabricated duct sections to shop drawings.<\/div>\n<\/details>\n<details style=\"background: #ffffff; border: 1px solid #e2e8f0; padding: 14px 18px; border-radius: 8px; margin-bottom: 12px; cursor: pointer; box-shadow: 0 2px 8px rgba(0,0,0,0.03);\">\n<summary style=\"font-weight: bold; color: #222;\">4. What is the maximum duct static pressure for pre-insulated panels?<\/summary>\n<div style=\"margin-top: 10px; color: #444;\">Standard 20 mm panels with aluminum flange connections are rated for positive pressures up to 1000 Pa and negative pressures up to 500 Pa. For higher pressures (up to 2000 Pa), specify 30 mm or 40 mm panels with reinforced TDC flange connections and internal stiffening rods at intervals not exceeding 600 mm. Maximum allowable air velocity is 12 m\/s regardless of pressure class.<\/div>\n<\/details>\n<details style=\"background: #ffffff; border: 1px solid #e2e8f0; padding: 14px 18px; border-radius: 8px; margin-bottom: 12px; cursor: pointer; box-shadow: 0 2px 8px rgba(0,0,0,0.03);\">\n<summary style=\"font-weight: bold; color: #222;\">5. How do pre-insulated panels prevent condensation compared to sheet metal ducts?<\/summary>\n<div style=\"margin-top: 10px; color: #444;\">Sheet metal ducts rely on external insulation wrapping, which is frequently damaged during installation and leaves thermal bridges at hangers and flanges. Pre-insulated panels make the foam core the duct wall itself \u2014 there is no metal surface to reach dew point. A 20 mm phenolic panel maintains the exterior surface above dew point in plenums up to 30&deg;C at 70% RH with 14&deg;C supply air. The closed-cell core (water absorption &le; 1.9%) also resists moisture ingress if the outer foil is locally punctured.<\/div>\n<\/details>\n<details style=\"background: #ffffff; border: 1px solid #e2e8f0; padding: 14px 18px; border-radius: 8px; margin-bottom: 12px; cursor: pointer; box-shadow: 0 2px 8px rgba(0,0,0,0.03);\">\n<summary style=\"font-weight: bold; color: #222;\">6. What is the expected service life, and does the foam degrade over time?<\/summary>\n<div style=\"margin-top: 10px; color: #444;\">Phenolic and PIR foams are thermoset polymers that do not soften, shrink, or lose insulating value under normal HVAC operating conditions (-40&deg;C to 80&deg;C). Field installations documented in Europe and Southeast Asia show intact performance after 20+ years of continuous operation. The aluminum foil facing does not corrode in typical indoor plenum environments. Service life is generally 15\u201330 years, limited by building renovation cycles rather than material degradation.<\/div>\n<\/details>\n<details style=\"background: #ffffff; border: 1px solid #e2e8f0; padding: 14px 18px; border-radius: 8px; margin-bottom: 12px; cursor: pointer; box-shadow: 0 2px 8px rgba(0,0,0,0.03);\">\n<summary style=\"font-weight: bold; color: #222;\">7. How are flat panels packaged for container shipping?<\/summary>\n<div style=\"margin-top: 10px; color: #444;\">Flat panels are stacked on timber pallets with PE protective film between sheets to prevent foil scratching. Bundles are strapped with PET banding and wrapped in shrink hood film. A 40 ft container holds approximately 1,800\u20132,200 m&sup2; of 20 mm panels depending on sheet dimensions. For pre-fabricated duct sections, pieces are nested and packed in labeled crates by installation zone to minimize on-site handling.<\/div>\n<\/details>\n<\/div>\n<\/div>\n<p><!-- JSON-LD SCHEMA INJECTION --><br \/>\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Pre-Insulated Duct Panel - Phenolic\/PIR\/PU Foam for HVAC Systems\",\n  \"image\": \"https:\/\/www.raxpanel.com\/wp-content\/uploads\/2025\/09\/rax-panel-logo-small.png\",\n  \"description\": \"Rigid foam duct panels with aluminum foil or steel facings for HVAC air distribution. Phenolic, PIR, and PU core options. CNC-cut and folded into finished ductwork weighing 70% less than sheet metal.\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"RaxPanel\"\n  },\n  \"manufacturer\": {\n    \"@type\": \"Organization\",\n    \"name\": \"RaxPanel\",\n    \"url\": \"https:\/\/www.raxpanel.com\"\n  },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/www.raxpanel.com\/architectural-insulated-panel\/pre-insulated-duct-panel\/\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"0.00\",\n    \"priceSpecification\": {\n      \"@type\": \"PriceSpecification\",\n      \"priceCurrency\": \"USD\",\n      \"valueAddedTaxIncluded\": \"false\",\n      \"description\": \"Custom B2B Factory Direct Quote for Pre-Insulated Duct Panels based on order specifications and container volume. Contact sales for engineering pricing.\"\n    },\n    \"availability\": \"https:\/\/schema.org\/MadeToOrder\",\n    \"itemCondition\": \"https:\/\/schema.org\/NewCondition\",\n    \"seller\": {\n      \"@type\": \"Organization\",\n      \"name\": \"RaxPanel\"\n    }\n  },\n  \"additionalProperty\": [\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Core Material\",\n      \"value\": \"Phenolic, PIR, or PU rigid foam\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Thermal Conductivity\",\n      \"value\": \"0.022 W\/m&middot;K (phenolic)\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Panel Thickness\",\n      \"value\": \"20-100 mm\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Facing\",\n      \"value\": \"Aluminum foil 0.04-0.1 mm or prepainted steel up to 0.6 mm\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Air Leakage\",\n      \"value\": \"SMACNA Class 1-3\"\n    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!important; margin: 0 auto !important; box-sizing: border-box !important;\">\n<!-- Centered Brand Logo Box (3D Logo Container) --><\/p>\n<div class=\"form-logo-box\"><img decoding=\"async\" class=\"form-logo\" src=\"https:\/\/www.raxpanel.com\/wp-content\/uploads\/2025\/09\/rax-panel-logo-big.png\" alt=\"RaxPanel Logo\" \/><\/div>\n<p><!-- Header --><\/p>\n<div class=\"form-header\">\n<h3>Sandwich Panel Manufacturer<\/h3>\n<\/div>\n<p><!-- B2B Strengths --><\/p>\n<div class=\"form-strengths-inline\">Custom Core &amp; Skin &bull; Tailored Dimensions<\/div>\n<p><!-- Contact Form --><\/p>\n<div class=\"form-body\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f9-o8\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"9\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/ru\/wp-json\/wp\/v2\/pages\/6106#wpcf7-f9-o8\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" 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target=\"_blank\" rel=\"noopener\">Terms of Service<\/a><\/span>\u00a0<span style=\"color: #999999;\">apply<\/span>.<\/span>\n<\/p><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n<\/div>\n<p><!-- Trust Badges --><\/p>\n<div class=\"form-footer-trust\">\n<div class=\"trust-item\">ISO 9001:2015 Certified<\/div>\n<div class=\"trust-item\">NDA Protected<\/div>\n<\/div>\n<\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><div class=\"ult-space\"><\/div><\/div><\/div><\/div><\/div><\/div><\/div><!-- Row Backgrounds --><div class=\"upb_color\" data-bg-override=\"ex-full\" data-bg-color=\"#f7f7f7\" data-fadeout=\"\" data-fadeout-percentage=\"30\" data-parallax-content=\"\" data-parallax-content-sense=\"30\" data-row-effect-mobile-disable=\"true\" data-img-parallax-mobile-disable=\"true\" data-rtl=\"false\"  data-custom-vc-row=\"\"  data-vc=\"7.3\"  data-is_old_vc=\"\"  data-theme-support=\"\"   data-overlay=\"false\" data-overlay-color=\"\" 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\u043f\u0440\u0435\u0434\u0432\u0430\u0440\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u043e\u043a\u0440\u0430\u0448\u0435\u043d\u043d\u043e\u0439 \u0441\u0442\u0430\u043b\u044c\u043d\u043e\u0439 \u043e\u0431\u043b\u0438\u0446\u043e\u0432\u043a\u043e\u0439, \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0435\u043c\u044b\u0435 \u0432 \u0432\u0438\u0434\u0435 \u043f\u043b\u043e\u0441\u043a\u043e\u0433\u043e-stock \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0438 \u0440\u0435\u0436\u0443\u0442, \u0432\u044b\u0431\u0438\u0440\u0430\u044e\u0442 \u043f\u0430\u0437\u044b \u0438 \u0441\u043a\u043b\u0430\u0434\u044b\u0432\u0430\u044e\u0442 \u0432 \u0433\u043e\u0442\u043e\u0432\u044b\u0435 \u0432\u043e\u0437\u0434\u0443\u0445\u043e\u0432\u043e\u0434\u044b \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u043c\u0438 \u041e\u0412\u0438\u041a. \u0422\u0435\u043f\u043b\u043e\u0438\u0437\u043e\u043b\u044f\u0446\u0438\u044f \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043d\u0435\u043e\u0442\u044a\u0435\u043c\u043b\u0435\u043c\u043e\u0439 \u0447\u0430\u0441\u0442\u044c\u044e \u0441\u0442\u0435\u043d\u043a\u0438 \u043f\u0430\u043d\u0435\u043b\u0438, \u0447\u0442\u043e \u0438\u0441\u043a\u043b\u044e\u0447\u0430\u0435\u0442 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0439 \u044d\u0442\u0430\u043f \u043e\u0431\u0451\u0440\u0442\u044b\u0432\u0430\u043d\u0438\u044f \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u0435\u0439, \u0442\u0440\u0435\u0431\u0443\u0435\u043c\u044b\u0439 \u0434\u043b\u044f \u0442\u0440\u0430\u0434\u0438\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0432\u043e\u0437\u0434\u0443\u0445\u043e\u0432\u043e\u0434\u043e\u0432 \u0438\u0437 \u043b\u0438\u0441\u0442\u043e\u0432\u043e\u0433\u043e \u043c\u0435\u0442\u0430\u043b\u043b\u0430 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