{"id":1651,"date":"2025-04-17T10:49:13","date_gmt":"2025-04-17T02:49:13","guid":{"rendered":"https:\/\/www.ductileironsuppliers.com\/?post_type=product&#038;p=1651"},"modified":"2025-04-17T17:07:16","modified_gmt":"2025-04-17T09:07:16","slug":"d400-manhole-cover-multileaf-access-system-1200-x-750-mm","status":"publish","type":"product","link":"https:\/\/www.ductileironsuppliers.com\/ar\/product\/d400-manhole-cover-multileaf-access-system-1200-x-750-mm","title":{"rendered":"\u063a\u0637\u0627\u0621 \u0641\u062a\u062d\u0629 \u0627\u0644\u062a\u0641\u062a\u064a\u0634 D400 - \u0646\u0638\u0627\u0645 \u0648\u0635\u0648\u0644 \u0645\u062a\u0639\u062f\u062f \u0627\u0644\u0623\u0648\u0631\u0627\u0642 - 1200 \u00d7 750 \u0645\u0645"},"content":{"rendered":"<p class=\"\" data-start=\"294\" data-end=\"989\">This D400 multileaf manhole cover and frame features a 1200\u00a0\u00d7\u00a0750\u00a0mm clear opening divided into three interlocking leaves, each under 25\u00a0kg, to facilitate safe, ergonomic lifting\u2014even under heavy wheel loads up to 400\u00a0kN (40\u00a0tonne test load). Precision machining of mating faces and a three\u2011point suspension system guarantee fully flush, non\u2011rock seating, while a slip\u2011resistant top pattern enhances pedestrian safety. Cast from GGG500\/7\u2011grade ductile iron (ISO\u00a01083) and coated in 30\u00a0\u00b5m bitumen (with optional epoxy finish), it combines exceptional load capacity, corrosion resistance, and ease of service in high\u2011traffic environments such as carriageways, industrial sites, and airport aprons.<\/p>\n<h3 data-start=\"991\" data-end=\"1012\">Product Overview<\/h3>\n<ul data-start=\"1013\" data-end=\"1567\">\n<li class=\"\" data-start=\"1013\" data-end=\"1214\">\n<p class=\"\" data-start=\"1015\" data-end=\"1214\"><strong data-start=\"1015\" data-end=\"1043\">Modular Multileaf Design<\/strong><br data-start=\"1043\" data-end=\"1046\" \/>Breaking the large opening into three leaves reduces individual lift weights and accelerates installation and maintenance without compromising structural integrity.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1215\" data-end=\"1390\">\n<p class=\"\" data-start=\"1217\" data-end=\"1390\"><strong data-start=\"1217\" data-end=\"1246\">Ductile\u2011Iron Construction<\/strong><br data-start=\"1246\" data-end=\"1249\" \/>GGG500\/7\u2011grade iron provides a minimum tensile strength of 500\u00a0MPa and proof stress of 320\u00a0MPa, ensuring durability under repeated loads.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1391\" data-end=\"1567\">\n<p class=\"\" data-start=\"1393\" data-end=\"1567\"><strong data-start=\"1393\" data-end=\"1427\">Precision Seating &amp; Suspension<\/strong><br data-start=\"1427\" data-end=\"1430\" \/>Three\u2011point suspension and machined seating surfaces deliver a rock\u2011free, flush finish that eliminates rattling noise and trip hazards.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1569\" data-end=\"1598\">Technical Specifications<\/h3>\n<div class=\"group pointer-events-none relative flex justify-center *:pointer-events-auto\">\n<p>&nbsp;<\/p>\n<div class=\"tableContainer horzScrollShadows relative\">\n<table class=\"min-w-full\" data-start=\"1600\" data-end=\"2259\">\n<thead data-start=\"1600\" data-end=\"1665\">\n<tr data-start=\"1600\" data-end=\"1665\">\n<th data-start=\"1600\" data-end=\"1624\">Specification<\/th>\n<th data-start=\"1624\" data-end=\"1665\">Details<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"1732\" data-end=\"2259\">\n<tr data-start=\"1732\" data-end=\"1797\">\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"1732\" data-end=\"1756\"><strong data-start=\"1734\" data-end=\"1751\">Clear Opening<\/strong><\/td>\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"1756\" data-end=\"1797\">1200\u00a0\u00d7\u00a0750\u00a0mm<\/td>\n<\/tr>\n<tr data-start=\"1798\" data-end=\"1863\">\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"1798\" data-end=\"1822\"><strong data-start=\"1800\" data-end=\"1814\">Leaf Count<\/strong><\/td>\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"1822\" data-end=\"1863\">3 interlocking sections<\/td>\n<\/tr>\n<tr data-start=\"1864\" data-end=\"1929\">\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"1864\" data-end=\"1888\"><strong data-start=\"1866\" data-end=\"1881\">Leaf Weight<\/strong><\/td>\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"1888\" data-end=\"1929\">&lt;\u00a025\u00a0kg each<\/td>\n<\/tr>\n<tr data-start=\"1930\" data-end=\"1995\">\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"1930\" data-end=\"1954\"><strong data-start=\"1932\" data-end=\"1946\">Load Class<\/strong><\/td>\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"1954\" data-end=\"1995\">D400 (400\u00a0kN \/ 40\u00a0t)<\/td>\n<\/tr>\n<tr data-start=\"1996\" data-end=\"2061\">\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"1996\" data-end=\"2020\"><strong data-start=\"1998\" data-end=\"2012\">Frame Size<\/strong><\/td>\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"2020\" data-end=\"2061\">~1340\u00a0\u00d7\u00a0890\u00a0\u00d7\u00a0100\u00a0mm (L\u00d7W\u00d7Depth)<\/td>\n<\/tr>\n<tr data-start=\"2062\" data-end=\"2127\">\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"2062\" data-end=\"2086\"><strong data-start=\"2064\" data-end=\"2085\">Material Standard<\/strong><\/td>\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"2086\" data-end=\"2127\">ISO\u00a01083 GGG500\/7 nodular iron<\/td>\n<\/tr>\n<tr data-start=\"2128\" data-end=\"2193\">\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"2128\" data-end=\"2152\"><strong data-start=\"2130\" data-end=\"2141\">Coating<\/strong><\/td>\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"2152\" data-end=\"2193\">30\u00a0\u00b5m bitumen (standard); epoxy opt.<\/td>\n<\/tr>\n<tr data-start=\"2194\" data-end=\"2259\">\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"2194\" data-end=\"2218\"><strong data-start=\"2196\" data-end=\"2211\">Top Pattern<\/strong><\/td>\n<td class=\"max-w-[calc(var(--thread-content-max-width)*2\/3)]\" data-start=\"2218\" data-end=\"2259\">High\u2011USRV\/PSRV slip\u2011resistant grid<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<h3 data-start=\"2261\" data-end=\"2286\">Quality &amp; Compliance<\/h3>\n<ul data-start=\"2287\" data-end=\"2633\">\n<li class=\"\" data-start=\"2287\" data-end=\"2396\">\n<p class=\"\" data-start=\"2289\" data-end=\"2396\"><strong data-start=\"2289\" data-end=\"2302\">Standards<\/strong>: Engineered to BS\u00a0EN\u00a0124\u20112:2015 Group\u00a04 (D400) requirements for high\u2011load vehicular covers.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2397\" data-end=\"2511\">\n<p class=\"\" data-start=\"2399\" data-end=\"2511\"><strong data-start=\"2399\" data-end=\"2416\">Certification<\/strong>: Manufactured under ISO\u00a09001 quality systems with third\u2011party audits for batch traceability.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2512\" data-end=\"2633\">\n<p class=\"\" data-start=\"2514\" data-end=\"2633\"><strong data-start=\"2514\" data-end=\"2528\">Durability<\/strong>: Ductile\u2011iron alloy and protective coatings minimize lifecycle costs through extended service intervals.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2635\" data-end=\"2663\">Applications &amp; Benefits<\/h3>\n<ul data-start=\"2664\" data-end=\"3121\">\n<li class=\"\" data-start=\"2664\" data-end=\"2786\">\n<p class=\"\" data-start=\"2666\" data-end=\"2786\"><strong data-start=\"2666\" data-end=\"2689\">Heavy\u2011Traffic Zones<\/strong>: Ideal for highways, industrial estates, and airport aprons subject to wheel loads up to 40\u00a0t.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2787\" data-end=\"2897\">\n<p class=\"\" data-start=\"2789\" data-end=\"2897\"><strong data-start=\"2789\" data-end=\"2808\">Enhanced Safety<\/strong>: Slip\u2011resistant grid surface and flush seating eliminate trip hazards and cover noise.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2898\" data-end=\"3011\">\n<p class=\"\" data-start=\"2900\" data-end=\"3011\"><strong data-start=\"2900\" data-end=\"2918\">Serviceability<\/strong>: Ergonomic, light\u2011weight leaves and three\u2011point suspension cut maintenance time and labor.<\/p>\n<\/li>\n<li class=\"\" data-start=\"3012\" data-end=\"3121\">\n<p class=\"\" data-start=\"3014\" data-end=\"3121\"><strong data-start=\"3014\" data-end=\"3027\">Longevity<\/strong>: Corrosion\u2011resistant finish and high\u2011strength alloy resist environmental and mechanical wear.<\/p>\n<\/li>\n<\/ul>\n<div id=\"specificationsTabTable1\" class=\"col-12 col-md-6\">\n<table class=\"table mb-0\">\n<tbody>\n<tr>\n<td><strong>Family<\/strong>:<\/td>\n<td>Telecom \/ Fibre \/ Cable<\/td>\n<\/tr>\n<tr>\n<td><strong>Packaging Qty<\/strong>:<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td><strong>Product Type<\/strong>:<\/td>\n<td>Telecom Access Cover<\/td>\n<\/tr>\n<tr>\n<td><strong>Product Ranges<\/strong>:<\/td>\n<td>DT Range<\/td>\n<\/tr>\n<tr>\n<td><strong>Certified Class<\/strong>:<\/td>\n<td>D400<\/td>\n<\/tr>\n<tr>\n<td><strong>Surface Finish<\/strong>:<\/td>\n<td>Anti-slip surface<\/td>\n<\/tr>\n<tr>\n<td><strong>Clear Opening Length (Hinge Side)<\/strong>:<\/td>\n<td>1200 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>Clear Opening Width<\/strong>:<\/td>\n<td>750 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>Flange Outer Length<\/strong>:<\/td>\n<td>1362 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>Flange Outer Width<\/strong>:<\/td>\n<td>986 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>Frame Height<\/strong>:<\/td>\n<td>120 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>Weight<\/strong>:<\/td>\n<td>208 kg<\/td>\n<\/tr>\n<tr>\n<td><strong>Watertight<\/strong>:<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td><strong>Cover\/Grating Shape<\/strong>:<\/td>\n<td>Double Triangular<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div id=\"specificationsTabTable2\" class=\"col-12 col-md-6\">\n<table class=\"table mb-0\">\n<tbody>\n<tr>\n<td><strong>Cover\/Grating Length<\/strong>:<\/td>\n<td>603 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>Hatch Cover\/Grating Qty<\/strong>:<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<td><strong>Cover Security Block Angle<\/strong>:<\/td>\n<td>90<\/td>\n<\/tr>\n<tr>\n<td><strong>Hinged<\/strong>:<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td><strong>Hinge Type<\/strong>:<\/td>\n<td>FT<\/td>\n<\/tr>\n<tr>\n<td><strong>Opening Direction<\/strong>:<\/td>\n<td>Vertical<\/td>\n<\/tr>\n<tr>\n<td><strong>Frame Style<\/strong>:<\/td>\n<td>Monoblock by Welding<\/td>\n<\/tr>\n<tr>\n<td><strong>Frame Shape on Vertical Section<\/strong>:<\/td>\n<td>Flat<\/td>\n<\/tr>\n<tr>\n<td><strong>Frame Surface Protection By<\/strong>:<\/td>\n<td>Water-Based Paint<\/td>\n<\/tr>\n<tr>\n<td><strong>Nb Anchoring Hole<\/strong>:<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<td><strong>Installation Type<\/strong>:<\/td>\n<td>With Concrete<\/td>\n<\/tr>\n<tr>\n<td><strong>Diameter Anchoring hole<\/strong>:<\/td>\n<td>20 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>Handling Key<\/strong>:<\/td>\n<td>Hook Handle \/ 517082<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3>Ductile iron manhole cover specifications and parameters<\/h3>\n<table>\n<thead>\n<tr>\n<th><strong>Parameter<\/strong><\/th>\n<th><strong>Specification\/Value<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Material<\/strong><\/td>\n<td>Ductile Cast Iron (Grade 500-7)<\/td>\n<\/tr>\n<tr>\n<td><strong>Standard Compliance<\/strong><\/td>\n<td>EN 124, BS 497, ASTM A536, ISO 1083<\/td>\n<\/tr>\n<tr>\n<td><strong>Shape<\/strong><\/td>\n<td>Round, Square, Oval<\/td>\n<\/tr>\n<tr>\n<td><strong>Load Rating<\/strong><\/td>\n<td>A15, B125, C250, D400, E600, F900 (EN 124 load classes)<\/td>\n<\/tr>\n<tr>\n<td><strong>Load Bearing Capacity<\/strong><\/td>\n<td>1.5 &#8211; 90 tons (depending on the rating)<\/td>\n<\/tr>\n<tr>\n<td><strong>Size (Diameter\/Length)<\/strong><\/td>\n<td>300mm &#8211; 1500mm (depending on type and design)<\/td>\n<\/tr>\n<tr>\n<td><strong>Thickness of Lid<\/strong><\/td>\n<td>20mm &#8211; 60mm (depending on the load class)<\/td>\n<\/tr>\n<tr>\n<td><strong>Weight<\/strong><\/td>\n<td>10 kg to 150 kg (depending on size and class)<\/td>\n<\/tr>\n<tr>\n<td><strong>Cover Surface<\/strong><\/td>\n<td>Smooth, Anti-slip, Textured for grip<\/td>\n<\/tr>\n<tr>\n<td><strong>Corrosion Resistance<\/strong><\/td>\n<td>Excellent, with epoxy coatings or bituminous treatment<\/td>\n<\/tr>\n<tr>\n<td><strong>Gasket Type<\/strong><\/td>\n<td>Rubber, Neoprene, EPDM<\/td>\n<\/tr>\n<tr>\n<td><strong>Sealing Mechanism<\/strong><\/td>\n<td>Bolt-down, Locking system, Hinged<\/td>\n<\/tr>\n<tr>\n<td><strong>Drainage Holes<\/strong><\/td>\n<td>Yes, optional (for water drainage)<\/td>\n<\/tr>\n<tr>\n<td><strong>Coating Type<\/strong><\/td>\n<td>Bitumen coated, Epoxy coating, Hot-dip galvanizing<\/td>\n<\/tr>\n<tr>\n<td><strong>Temperature Resistance<\/strong><\/td>\n<td>-30\u00b0C to +150\u00b0C (depending on coating type)<\/td>\n<\/tr>\n<tr>\n<td><strong>Fire Resistance<\/strong><\/td>\n<td>Flame-retardant (meets local standards for fire resistance)<\/td>\n<\/tr>\n<tr>\n<td>Noise Level<\/td>\n<td>Low noise design for urban areas<\/td>\n<\/tr>\n<tr>\n<td><strong>Ventilation<\/strong><\/td>\n<td>Optional vented covers for gas or sewage systems<\/td>\n<\/tr>\n<tr>\n<td><strong>Color<\/strong><\/td>\n<td>Black, Gray, Custom colors available<\/td>\n<\/tr>\n<tr>\n<td><strong>Manufacturing Process<\/strong><\/td>\n<td>Sand casting, Lost wax casting, Centrifugal casting<\/td>\n<\/tr>\n<tr>\n<td><strong>Edge Type<\/strong><\/td>\n<td>Flat, Raised, Beveled, or Reinforced edges<\/td>\n<\/tr>\n<tr>\n<td><strong>Bearing Surface<\/strong><\/td>\n<td>Cast iron, Epoxy, Stainless Steel (optional)<\/td>\n<\/tr>\n<tr>\n<td><strong>Longevity<\/strong><\/td>\n<td>50+ years with proper maintenance<\/td>\n<\/tr>\n<tr>\n<td><strong>Environmental Compliance<\/strong><\/td>\n<td>RoHS, REACH, and other regional environmental standards<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":1648,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"tags":[],"products":[9],"class_list":["post-1651","product","type-product","status-publish","has-post-thumbnail","hentry","products-ductile-iron-manhole-cover"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>D400 Manhole Cover \u2013 Multileaf Access System \u2013 1200\u00d7750\u00a0mm - Jingang LuoKaiwei<\/title>\n<meta name=\"description\" content=\"Explore our BS\u00a0EN\u00a0124\u20112:2015 D400 multileaf manhole cover and frame (1200\u00a0\u00d7\u00a0750\u00a0mm) in GGG500\/7 ductile iron, featuring three\u2011leaf design, three\u2011point suspension, slip\u2011resistant surface, and corrosion\u2011resistant finish\u2014built for heavy\u2011traffic roadways and industrial applications.\" 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