{"id":1493,"date":"2026-02-23T08:28:08","date_gmt":"2026-02-23T08:28:08","guid":{"rendered":"https:\/\/sltech.top\/ich\/?post_type=product&#038;p=1493"},"modified":"2026-04-01T07:35:29","modified_gmt":"2026-04-01T07:35:29","slug":"delta-duct-fd4-rn-reinforced-metalized-core-duct","status":"publish","type":"product","link":"https:\/\/sltech.top\/ich\/product\/delta-duct-fd4-rn-reinforced-metalized-core-duct\/","title":{"rendered":"Delta Duct FD4 &#8211; RN \u2013 Reinforced Metalized Core Duct"},"content":{"rendered":"<p data-path-to-node=\"37\"><span data-path-to-node=\"37,2\"><span class=\"citation-265\">Combining a reinforced exterior with a high-performance interior, the <\/span><b data-path-to-node=\"37,2\" data-index-in-node=\"70\"><span class=\"citation-265\">Delta Duct FD4 &#8211; RN<\/span><\/b><span class=\"citation-265\"> features a reinforced metalized PET outer jacket and a double-layer metalized PET and clear polyester inner core<\/span><\/span><span data-path-to-node=\"37,4\">. <\/span><span data-path-to-node=\"37,6\"><span class=\"citation-264\">This dual reinforcement ensures the duct can withstand harsh handling while maintaining peak thermal performance through its high-quality fiberglass insulation<\/span><\/span><span data-path-to-node=\"37,8\">.<\/span><\/p>\n<p data-path-to-node=\"38\"><b data-path-to-node=\"38\" data-index-in-node=\"0\">Real-World Applications<\/b><\/p>\n<ul data-path-to-node=\"39\">\n<li>\n<p data-path-to-node=\"39,0,0\"><b data-path-to-node=\"39,0,0\" data-index-in-node=\"0\">Mechanical Plant Rooms:<\/b> Used for terminal connections in plant rooms where air pressure and physical durability are priorities.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"39,1,0\"><b data-path-to-node=\"39,1,0\" data-index-in-node=\"0\">Commercial Kitchen Ventilation:<\/b> Often used in secondary air distribution lines where a tougher jacket resists environmental wear.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"39,2,0\"><b data-path-to-node=\"39,2,0\" data-index-in-node=\"0\">Industrial Air Transport:<\/b> Reliable for moving conditioned air across large industrial workshops.<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"41\"><span data-path-to-node=\"41,0\"><b data-path-to-node=\"41,0\" data-index-in-node=\"0\"><span class=\"citation-263\">Specification: (from product catalog)<\/span><\/b> <\/span><\/p>\n<ul data-path-to-node=\"42\">\n<li>\n<p data-path-to-node=\"42,0,0\"><b data-path-to-node=\"42,0,0\" data-index-in-node=\"0\">Diameter:<\/b> 4&#8243; to 20&#8243;<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"42,1,0\"><b data-path-to-node=\"42,1,0\" data-index-in-node=\"0\">Inner Core:<\/b> Double layer metalized PET &amp; clear polyester<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"42,2,0\"><b data-path-to-node=\"42,2,0\" data-index-in-node=\"0\">Outer Jacket:<\/b> Reinforced metalized PET laminated over clear polyester<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"42,3,0\"><b data-path-to-node=\"42,3,0\" data-index-in-node=\"0\">Max Velocity:<\/b> 5000 FPM (25.5 m\/s)<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"42,4,0\"><b data-path-to-node=\"42,4,0\" data-index-in-node=\"0\">Max Positive Pressure:<\/b> 10&#8243; W.C. (2.5 KPa)<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"42,5,0\"><b data-path-to-node=\"42,5,0\" data-index-in-node=\"0\">Insulation R-Value:<\/b> 4.2 or 6 (<span class=\"math-inline\" data-math=\"F-hr\/BTU\" data-index-in-node=\"30\">$F-hr\/BTU$<\/span>)<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"20\"><b data-path-to-node=\"20\" data-index-in-node=\"0\">Authorized Distribution in Sri Lanka<\/b><\/h3>\n<p data-path-to-node=\"21\"><b data-path-to-node=\"21\" data-index-in-node=\"0\">Incube Holding Sri Lanka<\/b> is the primary sales and distribution agent for <b data-path-to-node=\"21\" data-index-in-node=\"73\">Delta Duct<\/b> air conditioning solutions and <b data-path-to-node=\"21\" data-index-in-node=\"115\">HAPRI<\/b> building insulation products. We provide direct access to these high-quality enterprise building materials, specializing in <b data-path-to-node=\"21\" data-index-in-node=\"245\">Thermal and Acoustic Insulation Solutions<\/b> across Sri Lanka.<\/p>\n<p data-path-to-node=\"22\">For reliable, durable, and international-standard air distribution systems, trust the partnership between <b data-path-to-node=\"22\" data-index-in-node=\"106\">Delta Duct<\/b> and <b data-path-to-node=\"22\" data-index-in-node=\"121\">Incube Holding<\/b>.<\/p>\n<p data-path-to-node=\"22\">\n","protected":false},"excerpt":{"rendered":"<ul>\n<li>\n<p data-path-to-node=\"12,0,0\"><b data-path-to-node=\"12,0,0\" data-index-in-node=\"0\">Applications:<\/b> Mechanical Plant Rooms, Industrial Air Distribution Lines.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"12,1,0\"><b data-path-to-node=\"12,1,0\" data-index-in-node=\"0\">Key Features:<\/b> Reinforced Outer Jacket with Reflective Metalized Inner Core.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"12,2,0\"><b data-path-to-node=\"12,2,0\" data-index-in-node=\"0\">Compliance:<\/b> High Durability for High-Traffic Maintenance Areas.<\/p>\n<\/li>\n<\/ul>\n","protected":false},"featured_media":1494,"template":"","meta":{"_uag_custom_page_level_css":"","_swt_meta_header_display":false,"_swt_meta_footer_display":false,"_swt_meta_site_title_display":false,"_swt_meta_sticky_header":false,"_swt_meta_transparent_header":false},"product_brand":[42],"product_cat":[26,24],"product_tag":[44,59,61,46,60,38,45],"class_list":{"0":"post-1493","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-delta-duct-insulation-materials-srilanka-incube-holdings","7":"product_cat-delta-duct-building-insulation-products-srilanka","8":"product_cat-flexible-duct-and-accessories","9":"product_tag-delta-duct","10":"product_tag-delta-duct-fd4-rn","11":"product_tag-double-layer-metalized-pet-and-clear-polyester","12":"product_tag-hvac","13":"product_tag-metalized-pet-outer-jacket","14":"product_tag-pre-insulated-duct-panels","15":"product_tag-pre-insulated-flexible-duct","17":"first","18":"instock","19":"shipping-taxable","20":"product-type-simple"},"uagb_featured_image_src":{"full":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/delta-duct-FD4-RN-pre-insulated-duct-panels-and-accessories-incube-holding-srilanka.png",550,413,false],"thumbnail":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/delta-duct-FD4-RN-pre-insulated-duct-panels-and-accessories-incube-holding-srilanka-150x150.png",150,150,true],"medium":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/delta-duct-FD4-RN-pre-insulated-duct-panels-and-accessories-incube-holding-srilanka-300x225.png",300,225,true],"medium_large":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/delta-duct-FD4-RN-pre-insulated-duct-panels-and-accessories-incube-holding-srilanka.png",550,413,false],"large":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/delta-duct-FD4-RN-pre-insulated-duct-panels-and-accessories-incube-holding-srilanka.png",550,413,false],"1536x1536":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/delta-duct-FD4-RN-pre-insulated-duct-panels-and-accessories-incube-holding-srilanka.png",550,413,false],"2048x2048":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/delta-duct-FD4-RN-pre-insulated-duct-panels-and-accessories-incube-holding-srilanka.png",550,413,false],"woocommerce_thumbnail":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/delta-duct-FD4-RN-pre-insulated-duct-panels-and-accessories-incube-holding-srilanka-300x300.png",300,300,true],"woocommerce_single":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/delta-duct-FD4-RN-pre-insulated-duct-panels-and-accessories-incube-holding-srilanka.png",550,413,false],"woocommerce_gallery_thumbnail":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/delta-duct-FD4-RN-pre-insulated-duct-panels-and-accessories-incube-holding-srilanka-100x100.png",100,100,true]},"uagb_author_info":{"display_name":"ichadmin","author_link":"https:\/\/sltech.top\/ich\/author\/"},"uagb_comment_info":0,"uagb_excerpt":"Applications: Mechanical Plant Rooms, Industrial Air Distribution Lines. Key Features: Reinforced Outer Jacket with Reflective Metalized Inner Core. Compliance: High Durability for High-Traffic Maintenance Areas.","_links":{"self":[{"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/product\/1493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/media\/1494"}],"wp:attachment":[{"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/media?parent=1493"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/product_brand?post=1493"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/product_cat?post=1493"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/product_tag?post=1493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}