{"id":1865,"date":"2025-04-22T16:46:03","date_gmt":"2025-04-22T08:46:03","guid":{"rendered":"https:\/\/www.ductileironsuppliers.com\/?post_type=product&p=1865"},"modified":"2025-04-22T16:46:03","modified_gmt":"2025-04-22T08:46:03","slug":"class-k8-dn200-ductile-iron-pipe-suppliers","status":"publish","type":"product","link":"https:\/\/www.ductileironsuppliers.com\/ar\/product\/class-k8-dn200-ductile-iron-pipe-suppliers","title":{"rendered":"\u0645\u0648\u0631\u0650\u0651\u062f\u0648 \u0623\u0646\u0627\u0628\u064a\u0628 \u062d\u062f\u064a\u062f \u0627\u0644\u062f\u0643\u062a\u0627\u064a\u0644 \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 K8 DN200"},"content":{"rendered":"

Class\u00a0K8\u00a0DN200 ductile iron pipe features a nominal wall thickness of 6.0\u00a0mm<\/strong>, calculated per ISO\u00a02531\u2019s thickness formula e = K\u00a0(0.5\u00a0+\u00a00.001\u00a0DN)<\/em> with DN 200 mm and K = 8. It is designed for medium pressures (approx. PN 12.5), serving potable water, sewage, irrigation, gas and fire\u2011protection mains. Cement\u2011mortar linings and polyethylene encasement extend life well beyond 100\u00a0years<\/strong> in benign soils\u2014and up to 110\u00a0years<\/strong> with enhanced corrosion control. Installation uses push\u2011on (\u201cTyton\u201d), mechanical or flanged joints per ISO 2531, EN 545 and AWWA standards. Among K\u2011series classes, wall thickness rises from 6.0\u00a0mm<\/strong> (K7\/K8) to 6.3\u00a0mm<\/strong> (K9) to 8.4\u00a0mm<\/strong> (K12), with prices ranging roughly $480\u2013900\u00a0USD\/ton<\/strong> depending on class, quantity and finish. Case studies\u2014such as Huntsville Utilities\u2019 $17\u00a0million<\/strong> PV energy savings over 50 years and Everglades City\u2019s \u201cexcellent\u201d LPS performance\u2014underscore DIP\u2019s durability and cost\u2011effectiveness .<\/p>\n

Applications<\/h2>\n
    \n
  • \n

    Potable Water Distribution<\/strong>: Proven leak\u2011tight, large\u2011diameter mains for urban supply networks.<\/p>\n<\/li>\n

  • \n

    Sewage & Drainage<\/strong>: Abrasion\u2011resistant conveyance of wastewater in gravity or force mains.<\/p>\n<\/li>\n

  • \n

    Irrigation Systems<\/strong>: Stable hydraulic performance under variable flows in agriculture.<\/p>\n<\/li>\n

  • \n

    Gas Distribution<\/strong>: When produced and tested per EN 969, delivers safe, leak\u2011tight gas service.<\/p>\n<\/li>\n

  • \n

    Fire\u2011Protection Mains<\/strong>: High surge resilience and ductility ensure reliable fire\u2011water delivery.<\/p>\n<\/li>\n<\/ul>\n

    Service Life<\/h2>\n

    Unprotected ductile iron pipe can exceed 100\u00a0years<\/strong> in non\u2011corrosive soils; with loose polyethylene sleeving, life expectancy reaches 110\u00a0years<\/strong> under optimized laying practices. At Florida\u2019s Everglades test site, LPS\u2011encased pipes remained in \u201cexcellent condition\u201d after over 10\u00a0years<\/strong> in aggressive muck. In Huntsville, AL, a Journal\u00a0AWWA study found annual pumping\u2011cost savings of $666,999<\/strong>, yielding a $17\u00a0million<\/strong> present\u2011value benefit over 50 years versus PVC mains.<\/p>\n

    Installation & Connection<\/h2>\n
      \n
    • \n

      Push\u2011On (\u201cTyton\u201d) Joints<\/strong>: Spigot\u2011socket with elastomeric gasket\u2014quick, bolt\u2011free sealing per ISO 2531 socket dimensions.<\/p>\n<\/li>\n

    • \n

      Mechanical Joints<\/strong>: Gland\u2011and\u2011bolt restraint for fittings and valves, meeting ISO 2531 and AWWA C111 requirements.<\/p>\n<\/li>\n

    • \n

      Flanged Joints<\/strong>: ANSI B16.1 or EN 1092\u2011type flanges enable disassembly and axial-load resistance.<\/p>\n<\/li>\n

    • \n

      Field Practices<\/strong>: Trench bedding, deflection limits, hydrostatic testing and chlorination follow ISO 2531 and AWWA guidelines.<\/p>\n<\/li>\n<\/ul>\n

      Product Series Comparison<\/h2>\n
      \n

       <\/p>\n

      \n\n\n\n\n\n\n\n\n
      Class<\/th>\nWall Thickness (mm)<\/th>\nTypical Price (USD\/ton)<\/th>\n<\/tr>\n<\/thead>\n
      K7<\/strong><\/td>\n6.0<\/td>\n$480\u00a0\u2013\u00a0530<\/td>\n<\/tr>\n
      K8<\/strong><\/td>\n6.0<\/td>\n$480\u00a0\u2013\u00a0530<\/td>\n<\/tr>\n
      K9<\/strong><\/td>\n6.3<\/td>\n$250 \u2013 420<\/td>\n<\/tr>\n
      K12<\/strong><\/td>\n8.4\u00a0(calculated\u00a0via\u00a0e=12\u00a0\u00d7\u00a0(0.5+0.001\u00a0\u00d7\u00a0200))<\/td>\n$885\u00a0\u2013\u00a0895<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
      \n

      Wall thicknesses per ISO 2531; prices vary by volume, coating and supplier.<\/em><\/p>\n<\/blockquote>\n

      International Standards<\/h2>\n
        \n
      • \n

        ISO\u00a02531\u00a0\/\u00a0EN\u00a0545\u00a0\/\u00a0EN\u00a0598<\/strong>: Pipe dimensions, linings and joint performance.<\/p>\n<\/li>\n

      • \n

        GB\/T\u00a013295\u20112019<\/strong>: Chinese standard for DIP, fittings and joints in water\/gas applications.<\/p>\n<\/li>\n

      • \n

        ANSI\/AWWA C105\/A21.5<\/strong>, ASTM\u00a0A674<\/strong>, JDPA\u00a0Z\u00a02005<\/strong>, BS\u00a06076<\/strong>: Polyethylene sleeving (external corrosion control).<\/p>\n<\/li>\n

      • \n

        EN\u00a0969<\/strong>: Requirements for gas\u2011pipeline DI pipes, fittings and accessories.<\/p>\n<\/li>\n<\/ul>\n

        Advantages<\/h2>\n
          \n
        • \n

          Exceptional Longevity<\/strong>: 100+ year design life reduces lifecycle replacements.<\/p>\n<\/li>\n

        • \n

          High Strength & Toughness<\/strong>: Tensile \u2265 420 MPa withstands surge and external loads.<\/p>\n<\/li>\n

        • \n

          Comprehensive Corrosion Control<\/strong>: Cement\u2011mortar lining, bonded zinc\/bitumen coatings, LPS.<\/p>\n<\/li>\n

        • \n

          Versatile Joints<\/strong>: Push\u2011on, mechanical, flanged and restrained systems for diverse site needs.<\/p>\n<\/li>\n

        • \n

          Sustainability<\/strong>: Fully recyclable material with low life\u2011cycle energy use vs. thermoplastics.<\/p>\n<\/li>\n<\/ul>\n

          FAQ<\/h2>\n

          Q1: How do K classes differ?<\/strong>
          They\u2019re thickness classes defined by e=K\u00a0(0.5+0.001\u00a0DN)<\/em>\u2014K7\/K8\/K9\/K12 yield 6.0\/6.0\/6.3\/8.4 mm at DN200 respectively.<\/p>\n

          Q2: What corrosion protections are available?<\/strong>
          Standard options include cement\u2013mortar lining, zinc\/bitumen coatings, loose polyethylene sleeving (ANSI\/AWWA C105) and, where needed, cathodic protection.<\/p>\n

          Q3: What sizes and lengths are offered?<\/strong>
          DN\u00a080\u20132600\u00a0mm, typically 6\u00a0m laying lengths (5.7\u00a0m for container loads) with custom cuts on request .<\/p>\n

          Q4: Can DIP be used in seismic or high\u2011load areas?<\/strong>
          Yes\u2014restrained joints (e.g., T\u2011bolt, tie\u2011rod, ball\u2011and\u2011socket types) accommodate ground movement and axial loads for seismic resilience .<\/p>\n

          Case Studies<\/h2>\n
            \n
          • \n

            Huntsville Utilities, AL<\/strong>: Journal\u00a0AWWA study reports $666,999<\/strong> annual pumping\u2011cost savings and $17\u00a0million<\/strong> PV benefit over 50 years by using DIP vs. PVC.<\/p>\n<\/li>\n

          • \n

            Everglades City, FL<\/strong>: Ductile iron with loose polyethylene encasement remained in \u201cexcellent condition\u201d after 10+\u00a0years<\/strong> in uniquely corrosive soils (resistivity 140\u2013240 \u03a9\u2011cm).<\/p>\n<\/li>\n<\/ul>\n

            ductile iron pipe dimensions<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
            <\/td>\n<\/td>\n<\/td>\nPipe body weight \uff08kg\/m)<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
            (Inside Diameter)<\/td>\n(Outside Diameter)<\/td>\nSocket Weight<\/td>\nK8<\/td>\nK9<\/td>\nK10<\/td>\nC class<\/td>\nTotal weight of Active Length=6M (kg)<\/td>\nTotal weight of Active Length=5.7M (kg)<\/td>\n<\/tr>\n
            DN(mm)<\/td>\nOD(mm)<\/td>\n\u2248 kg<\/td>\nClass<\/td>\nkg\/m<\/td>\nK8<\/td>\nK9<\/td>\nK10<\/td>\nC class<\/td>\nK8<\/td>\nK9<\/td>\nK10<\/td>\nC class<\/td>\n<\/tr>\n
            80<\/td>\n98<\/td>\n3.40<\/td>\n12.20<\/td>\n12.20<\/td>\n12.20<\/td>\nC40<\/td>\n9.10<\/td>\n77.00<\/td>\n77.00<\/td>\n77.00<\/td>\n58.00<\/td>\n73.00<\/td>\n73.00<\/td>\n73.00<\/td>\n55.00<\/td>\n<\/tr>\n
            100<\/td>\n118<\/td>\n4.30<\/td>\n14.90<\/td>\n15.10<\/td>\n15.10<\/td>\nC40<\/td>\n11.12<\/td>\n93.70<\/td>\n95.00<\/td>\n95.00<\/td>\n71.00<\/td>\n90.00<\/td>\n91.00<\/td>\n90.00<\/td>\n68.00<\/td>\n<\/tr>\n
            125<\/td>\n144<\/td>\n5.70<\/td>\n<\/td>\n18.90<\/td>\n<\/td>\nC40<\/td>\n<\/td>\n<\/td>\n119.00<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
            150<\/td>\n170<\/td>\n7.10<\/td>\n21.80<\/td>\n22.80<\/td>\n22.80<\/td>\nC40<\/td>\n16.48<\/td>\n138.00<\/td>\n144.00<\/td>\n144.00<\/td>\n106.00<\/td>\n132.00<\/td>\n138.00<\/td>\n137.00<\/td>\n101.00<\/td>\n<\/tr>\n
            200<\/td>\n222<\/td>\n10.30<\/td>\n28.70<\/td>\n30.60<\/td>\n30.60<\/td>\nC40<\/td>\n22.62<\/td>\n183.00<\/td>\n194.00<\/td>\n194.00<\/td>\n146.00<\/td>\n174.00<\/td>\n185.00<\/td>\n185.00<\/td>\n139.00<\/td>\n<\/tr>\n
            250<\/td>\n274<\/td>\n14.20<\/td>\n35.60<\/td>\n40.20<\/td>\n44.30<\/td>\nC40<\/td>\n32.63<\/td>\n228.00<\/td>\n255.00<\/td>\n280.00<\/td>\n210.00<\/td>\n218.00<\/td>\n244.00<\/td>\n267.00<\/td>\n200.00<\/td>\n<\/tr>\n
            300<\/td>\n326<\/td>\n18.90<\/td>\n45.30<\/td>\n50.80<\/td>\n56.30<\/td>\nC30<\/td>\n43.90<\/td>\n290.00<\/td>\n323.00<\/td>\n357.00<\/td>\n282.00<\/td>\n278.00<\/td>\n309.00<\/td>\n340.00<\/td>\n269.00<\/td>\n<\/tr>\n
            350<\/td>\n378<\/td>\n23.70<\/td>\n55.90<\/td>\n63.20<\/td>\n69.60<\/td>\nC30<\/td>\n51.88<\/td>\n359.00<\/td>\n403.00<\/td>\n441.00<\/td>\n335.00<\/td>\n343.00<\/td>\n384.00<\/td>\n420.00<\/td>\n319.00<\/td>\n<\/tr>\n
            400<\/td>\n429<\/td>\n29.50<\/td>\n67.30<\/td>\n75.50<\/td>\n83.70<\/td>\nC30<\/td>\n60.78<\/td>\n433.00<\/td>\n482.00<\/td>\n532.00<\/td>\n394.00<\/td>\n414.00<\/td>\n460.00<\/td>\n506.00<\/td>\n376.00<\/td>\n<\/tr>\n
            450<\/td>\n480<\/td>\n38.30<\/td>\n80.00<\/td>\n89.30<\/td>\n99.00<\/td>\nC30<\/td>\n73.30<\/td>\n515.00<\/td>\n575.00<\/td>\n632.00<\/td>\n472.00<\/td>\n492.00<\/td>\n550.00<\/td>\n597.00<\/td>\n450.00<\/td>\n<\/tr>\n
            500<\/td>\n532<\/td>\n42.80<\/td>\n92.80<\/td>\n104.30<\/td>\n115.60<\/td>\nC30<\/td>\n87.20<\/td>\n600.00<\/td>\n669.00<\/td>\n736.00<\/td>\n566.00<\/td>\n572.00<\/td>\n638.00<\/td>\n702.00<\/td>\n540.00<\/td>\n<\/tr>\n
            600<\/td>\n635<\/td>\n59.30<\/td>\n122.00<\/td>\n137.30<\/td>\n152.00<\/td>\nC30<\/td>\n120.62<\/td>\n791.00<\/td>\n882.00<\/td>\n971.00<\/td>\n783.00<\/td>\n755.00<\/td>\n842.00<\/td>\n926.00<\/td>\n747.00<\/td>\n<\/tr>\n
            700<\/td>\n738<\/td>\n79.10<\/td>\n155.00<\/td>\n173.90<\/td>\n193.00<\/td>\nC25<\/td>\n142.15<\/td>\n1009.00<\/td>\n1123.00<\/td>\n1237.00<\/td>\n932.00<\/td>\n963.00<\/td>\n1071.00<\/td>\n1179.00<\/td>\n889.00<\/td>\n<\/tr>\n
            800<\/td>\n842<\/td>\n102.60<\/td>\n192.00<\/td>\n215.20<\/td>\n239.00<\/td>\nC25<\/td>\n177.07<\/td>\n1255.00<\/td>\n1394.00<\/td>\n1537.00<\/td>\n1165.00<\/td>\n1197.00<\/td>\n1330.00<\/td>\n1465.00<\/td>\n1112.00<\/td>\n<\/tr>\n
            900<\/td>\n945<\/td>\n129.60<\/td>\n232.00<\/td>\n260.20<\/td>\n289.00<\/td>\nC25<\/td>\n197.68<\/td>\n1521.00<\/td>\n1691.00<\/td>\n1863.00<\/td>\n1446.00<\/td>\n1452.00<\/td>\n1613.00<\/td>\n1777.00<\/td>\n1257.00<\/td>\n<\/tr>\n
            1000<\/td>\n1048<\/td>\n161.30<\/td>\n275.00<\/td>\n309.30<\/td>\n343.20<\/td>\nC25<\/td>\n266.28<\/td>\n1811.00<\/td>\n2017.00<\/td>\n2221.00<\/td>\n1759.00<\/td>\n1729.00<\/td>\n1925.00<\/td>\n2118.00<\/td>\n1679.00<\/td>\n<\/tr>\n
            1100<\/td>\n1152<\/td>\n194.70<\/td>\n<\/td>\n362.80<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n2372.00<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
            1200<\/td>\n1255<\/td>\n237.70<\/td>\n374.00<\/td>\n420.10<\/td>\n466.10<\/td>\nC25<\/td>\n373.88<\/td>\n2482.00<\/td>\n2758.00<\/td>\n3034.00<\/td>\n2481.00<\/td>\n2370.00<\/td>\n2632.00<\/td>\n2894.00<\/td>\n2369.00<\/td>\n<\/tr>\n
            1400<\/td>\n1462<\/td>\n279.30<\/td>\n<\/td>\n547.20<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n3563.00<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            ductile iron pipe\u00a0Mechanical property<\/h2>\n\n\n\n\n\n\n\n\n\n
            Mechanical Property<\/td>\n<\/tr>\n
            Nominal Diameter<\/td>\nHydraulic test<\/td>\nTensile strength<\/td>\nElogation<\/td>\nYield strength<\/td>\nBending strength<\/td>\nBrinell hardness<\/td>\nThickness of cement lining<\/td>\n<\/tr>\n
            DN(MM)<\/td>\nMpa<\/td>\nMpa<\/td>\n%<\/td>\nMpa<\/td>\nMpa<\/td>\nHB<\/td>\nmm<\/td>\n<\/tr>\n
            DN80-DN300<\/td>\n5<\/td>\n\u2265420<\/td>\n\u226510<\/td>\n\u2265300<\/td>\n\u2265590<\/td>\n\u2264230<\/td>\n3<\/td>\n<\/tr>\n
            DN350-DN600<\/td>\n4<\/td>\n\u2265420<\/td>\n\u226510<\/td>\n\u2265300<\/td>\n\u2265590<\/td>\n\u2264230<\/td>\n5<\/td>\n<\/tr>\n
            DN700-DN1000<\/td>\n3.2<\/td>\n\u2265420<\/td>\n\u226510<\/td>\n\u2265300<\/td>\n\u2265590<\/td>\n\u2264230<\/td>\n6<\/td>\n<\/tr>\n
            DN1100-DN1600<\/td>\n2.5<\/td>\n\u2265420<\/td>\n\u22657<\/td>\n\u2265300<\/td>\n\u2265590<\/td>\n\u2264230<\/td>\n\u2026..<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":1866,"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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"tags":[],"products":[10],"class_list":["post-1865","product","type-product","status-publish","has-post-thumbnail","hentry","products-ductile-iron-pipes"],"acf":[],"yoast_head":"\nClass K8 DN200 ductile iron pipe suppliers - Jingang LuoKaiwei<\/title>\n<meta name=\"description\" content=\"Class\u00a0K8\u00a0DN200 ductile iron pipe: applications, 100+\u00a0year lifespan, installation methods, K7\u2013K12 comparison, international standards, FAQs & real\u2011world case studies\u2014durable, reliable solution.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ductileironsuppliers.com\/ar\/product\/class-k8-dn200-ductile-iron-pipe-suppliers\/\" \/>\n<meta property=\"og:locale\" content=\"ar_AR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Class K8 DN200 ductile iron pipe suppliers - Jingang LuoKaiwei\" \/>\n<meta property=\"og:description\" content=\"Class\u00a0K8\u00a0DN200 ductile iron pipe: applications, 100+\u00a0year lifespan, installation methods, K7\u2013K12 comparison, international standards, FAQs & real\u2011world case studies\u2014durable, reliable solution.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ductileironsuppliers.com\/ar\/product\/class-k8-dn200-ductile-iron-pipe-suppliers\/\" \/>\n<meta property=\"og:site_name\" content=\"Jingang LuoKaiwei\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ductileironsuppliers.com\/wp-content\/uploads\/2025\/04\/t3oei-wikaw.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"715\" \/>\n\t<meta property=\"og:image:height\" content=\"558\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/product\\\/class-k8-dn200-ductile-iron-pipe-suppliers\",\"url\":\"https:\\\/\\\/www.ductileironsuppliers.com\\\/product\\\/class-k8-dn200-ductile-iron-pipe-suppliers\",\"name\":\"Class K8 DN200 ductile iron pipe suppliers - 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