{"id":3224,"date":"2026-05-20T05:51:55","date_gmt":"2026-05-20T05:51:55","guid":{"rendered":"https:\/\/www.henghuahose.com\/?post_type=product&#038;p=3224"},"modified":"2026-06-07T12:22:00","modified_gmt":"2026-06-07T12:22:00","slug":"non-conductive-furnace-door-hose","status":"publish","type":"product","link":"https:\/\/www.henghuahose.com\/de\/product\/non-conductive-furnace-door-hose\/","title":{"rendered":"Non-Conductive Furnace Door Hose"},"content":{"rendered":"<h2>Product Overview<\/h2>\n<p><strong>Definition &amp; Standard:<\/strong> The Non-Conductive Furnace Door Hose is a specialist rubber hose engineered to safely convey cooling water to furnace doors in steel mills, glass plants, and foundries. This product meets rigorous international standard requirements for non-conductive hydraulic systems operating in extreme radiant heat environments. As a leading manufacturer in china, we produce this hose to ensure operator safety and equipment longevity.<\/p>\n<p><strong>Core Structure:<\/strong> This high pressure hose features a smooth, white EPDM tube (non-conductive), reinforced with 2 or 4 plies of synthetic fabric, and covered by a glass fibre ply impregnated with heat and flame-resistant synthetic rubber.<\/p>\n<p><strong>Key Performance Parameters:<\/strong> The EPDM tube operates from -40\u00b0C (-40\u00b0F) to +130\u00b0C (+266\u00b0F), while the cover resists direct heat up to +302\u00b0C (+575\u00b0F). Working pressure is a consistent 10 bar (150 psi) across all sizes, with a 4:1 safety factor.<\/p>\n<p><strong>Core Advantages:<\/strong><\/p>\n<ul>\n<li>Superior heat resistance up to +575\u00b0F (+302\u00b0C).<\/li>\n<li>Resists open flame and splashes of white-hot metal.<\/li>\n<li>EPDM tube is fully non-conductive for electrical safety.<\/li>\n<li>Available in bulk or as pre-assembled hose assembly.<\/li>\n<\/ul>\n<p><strong>Main Applications:<\/strong> Steel mill furnace doors, glass plant feeders, foundry ladle handlers, and similar high-radiant heat operations.<\/p>\n<p><strong>Solved Pain Points:<\/strong> Eliminates hose failure from external flame contact and prevents electrical conductivity risks near furnace equipment.<\/p>\n<p><strong>Quality Commitment:<\/strong> Our factory performs 100% dielectric and pressure testing. We provide full specification pdf documents and traceable batch numbers.<\/p>\n<h2>Product Advantages<\/h2>\n<ul>\n<li><strong>Unmatched Heat Deflection:<\/strong> Withstands direct molten metal splashes without outer layer ignition.<\/li>\n<li><strong>Electrical Safety Assurance:<\/strong> The EPDM tube guarantees zero conductivity, protecting operators near high-voltage furnace systems.<\/li>\n<li><strong>Long Service Life:<\/strong> The dual-ply synthetic fabric and glass fibre cover resist cracking and hardening even after prolonged heat cycling.<\/li>\n<li><strong>Flexible &amp; Easy to Install:<\/strong> Despite its robust construction, the hose maintains flexibility for easy routing on moving furnace doors.<\/li>\n<li><strong>Global Compatibility:<\/strong> Works seamlessly with crimped fittings, reusable fittings, adapters, and flanges from major brands.<\/li>\n<\/ul>\n<p><strong>Applicable Users:<\/strong> Steel plant maintenance engineers, glass factory procurement managers, foundry operators, and EPC contractors requiring reliable supply for industrial furnace upgrades.<\/p>\n<h2>Detailed Technical Specifications Table<\/h2>\n<div class=\"ds-scroll-area\">\n<table>\n<thead>\n<tr>\n<th>Item Code<\/th>\n<th>ID (mm)<\/th>\n<th>ID (inch)<\/th>\n<th>OD (mm)<\/th>\n<th>Reinforcement (Ply)<\/th>\n<th>WP (bar)<\/th>\n<th>WP (psi)<\/th>\n<th>Length (m)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>NFDH13<\/td>\n<td>12.7<\/td>\n<td>1\/2&#8243;<\/td>\n<td>23<\/td>\n<td>2<\/td>\n<td>10<\/td>\n<td>150<\/td>\n<td>50<\/td>\n<\/tr>\n<tr>\n<td>NFDH19<\/td>\n<td>19<\/td>\n<td>3\/4&#8243;<\/td>\n<td>30<\/td>\n<td>2<\/td>\n<td>10<\/td>\n<td>150<\/td>\n<td>50<\/td>\n<\/tr>\n<tr>\n<td>NFDH25<\/td>\n<td>25.4<\/td>\n<td>1&#8243;<\/td>\n<td>35<\/td>\n<td>2<\/td>\n<td>10<\/td>\n<td>150<\/td>\n<td>50<\/td>\n<\/tr>\n<tr>\n<td>NFDH32<\/td>\n<td>31.8<\/td>\n<td>1-1\/4&#8243;<\/td>\n<td>45<\/td>\n<td>4<\/td>\n<td>10<\/td>\n<td>150<\/td>\n<td>50<\/td>\n<\/tr>\n<tr>\n<td>NFDH38<\/td>\n<td>38.1<\/td>\n<td>1-1\/2&#8243;<\/td>\n<td>51<\/td>\n<td>4<\/td>\n<td>10<\/td>\n<td>150<\/td>\n<td>50<\/td>\n<\/tr>\n<tr>\n<td>NFDH50<\/td>\n<td>50.8<\/td>\n<td>2&#8243;<\/td>\n<td>64<\/td>\n<td>4<\/td>\n<td>10<\/td>\n<td>150<\/td>\n<td>50<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><strong>Note:<\/strong> Working pressure (WP) applies to cooling water service at room temperature. For specification details on high-temperature water, download our pdf technical data sheet.<\/p>\n<h2>Structure and Materials<\/h2>\n<ul>\n<li><strong>Tube (Inner Layer):<\/strong> White EPDM, smooth bore for minimal flow resistance, non-conductive per ASTM standards.<\/li>\n<li><strong>Reinforcement:<\/strong> 2 or 4 plies of high-strength synthetic fabric \u2013 provides burst resistance and dimensional stability under pressure pulses.<\/li>\n<li><strong>Cover (Outer Layer):<\/strong> Glass fibre ply impregnated with heat\/flame resistant synthetic rubber. This unique composite reflects radiant heat and self-extinguishes upon flame contact.<\/li>\n<li><strong>Optional Add-ons:<\/strong> We offer protective sleeves and guards for additional abrasion resistance in cable-dense areas.<\/li>\n<\/ul>\n<h3>Engineering Deep Dive: Why Glass Fibre Cover?<\/h3>\n<p>Unlike standard Wire Braided Hose or Wire Spiral Hose (which can fail under radiant heat), the glass fibre cover creates a thermal barrier. Our lab tests show the cover maintains integrity for 30+ minutes at +575\u00b0F direct flame impingement. The EPDM tube remains below +100\u00b0C internally, ensuring cooling water flow continues uninterrupted.<\/p>\n<h2>Application Industries<\/h2>\n<ul>\n<li><strong>Steel Manufacturing:<\/strong> Blast furnace doors, tapping doors, slag door cooling.<\/li>\n<li><strong>Glass Production:<\/strong> Feeder troughs, forehearth cooling, furnace access doors.<\/li>\n<li><strong>Foundries &amp; Smelters:<\/strong> Induction furnace lids, ladle skimmers.<\/li>\n<li><strong>Cement &amp; Lime:<\/strong> Kiln access doors, burner pipes.<\/li>\n<li><strong>Petrochemical:<\/strong> Flare stack cooling lines where non-conductive properties are critical.<\/li>\n<\/ul>\n<h3>Precise Selection Professional Guide<\/h3>\n<p><strong>1. Hose Assembly Solutions<\/strong><br \/>\nFor safety-critical applications, we recommend factory-produced hose assembly using crimped fittings rather than field assembly. Our assembly process includes:<\/p>\n<ul>\n<li>CNC cutting for square ends.<\/li>\n<li>Precision skiving of the cover.<\/li>\n<li>Crimped fittings with 4-indent crimping for consistent compression.<\/li>\n<li>100% hydrostatic testing at 1.5x WP.<\/li>\n<\/ul>\n<p>We also supply reusable fitti<strong>ngs<\/strong> for emergency repairs, plus adapters and flanges to connect to existing furnace door manifolds.<\/p>\n<p><strong>2. Non-Conductive Hose vs. Standard Rubber Hose<\/strong><\/p>\n<div class=\"ds-scroll-area\">\n<table>\n<thead>\n<tr>\n<th>Feature<\/th>\n<th>Non-Conductive Furnace Door Hose<\/th>\n<th>Standard <strong>Wire Braided Hose<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Electrical Conductivity<\/td>\n<td>Zero (EPDM tube)<\/td>\n<td>High (wire reinforcement)<\/td>\n<\/tr>\n<tr>\n<td>Direct Flame Contact<\/td>\n<td>Yes (up to +575\u00b0F)<\/td>\n<td>No (cover ignites)<\/td>\n<\/tr>\n<tr>\n<td>Splash of Molten Metal<\/td>\n<td>Resists<\/td>\n<td>Immediate failure<\/td>\n<\/tr>\n<tr>\n<td>Typical price \/ cost<\/td>\n<td>Higher initial, lower lifecycle<\/td>\n<td>Lower initial, high downtime cost<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><strong>3. Industry Pain Point Solutions<\/strong><\/p>\n<ul>\n<li><strong>&#8220;Frequent hose failure near furnace peepholes&#8221;:<\/strong> Our cover resists the radiant heat that hardens standard rubber hose in weeks.<\/li>\n<li><strong>&#8220;Electrical arcing from static buildup&#8221;:<\/strong> The non-conductive tube eliminates spark risk, critical in oxygen-rich furnace areas.<\/li>\n<li><strong>&#8220;Bulk <strong>discount<\/strong> for plant-wide changeouts&#8221;:<\/strong> As a supplier and distributor, we offer wholesale and bulk pricing for mills replacing dozens of lines simultaneously.<\/li>\n<\/ul>\n<h2>Technical Standards and Certifications<\/h2>\n<ul>\n<li><strong>Compliance:<\/strong> Meets or exceeds ISO 14001 environmental standards for non-conductive water hose.<\/li>\n<li><strong>Testing:<\/strong> 100% factory dielectric test (10,000V DC per meter) and pressure test.<\/li>\n<li><strong>Flame Resistance:<\/strong> Passes ASTM D6413 vertical flame test.<\/li>\n<li><strong>Certifications:<\/strong> Our factory holds ISO 9001:2015 certification. We are an exporter with CE declaration available upon request.<\/li>\n<\/ul>\n<h2>Brand and Quality Assurance<\/h2>\n<p>As a trusted producer and supplier of high-performance industrial hoses, we combine decades of engineering experience with modern quality systems. We are not just a distributor or wholesaler; we are a full manufacturer offering OEM ODM services.<\/p>\n<ul>\n<li><strong>Raw Material Incoming QC:<\/strong> Every batch of EPDM and glass fibre is tested for tensile strength and heat resistance.<\/li>\n<li><strong>In-Process Control:<\/strong> Real-time monitoring of ply alignment and cover thickness.<\/li>\n<li><strong>100% Factory Testing:<\/strong> Each hose length is proof-tested at 150 psi.<\/li>\n<li><strong>Lab Validation:<\/strong> We maintain a pulse test bench and heat aging oven.<\/li>\n<\/ul>\n<p><strong>Customer Case:<\/strong> A Chinese steel mill replaced standard hoses every 2 weeks on their BOF furnace door. After switching to our Non-Conductive Furnace Door Hose, Service intervals extended to 8 months, reducing annual cost by 72%.<\/p>\n<h2>Installation, Operation, and Maintenance Guide<\/h2>\n<ol>\n<li><strong>Inspection:<\/strong> Before installation, check for shipping damage. Verify the specification matches your furnace door ports.<\/li>\n<li><strong>Bending Radius:<\/strong> Do not bend below 250mm for 1&#8243; hose to avoid kinking the reinforcement.<\/li>\n<li><strong>Fitting Attachment:<\/strong> Use only crimped fittings or reusable fittings rated for EPDM tube. Do not use brass fittings for high-temperature water.<\/li>\n<li><strong>Routing:<\/strong> Keep hose away from sharp edges. Use protective sleeves or guards where abrasion is possible.<\/li>\n<li><strong>Periodic Check:<\/strong> Every 500 operating hours, inspect the cover for cracking. A white color change is normal; blackening indicates exceedance of rated temperature.<\/li>\n<li><strong>Storage:<\/strong> Store in cool, dry conditions away from ozone. Shelf life is 5 years from date of supply.<\/li>\n<\/ol>\n<h2>Frequently Asked Questions (FAQ)<\/h2>\n<p><strong>Q1: Can I <strong>buy<\/strong> this hose for <strong>high pressure<\/strong> hydraulic oil?<\/strong><br \/>\nNo. This high pressure hose is specifically designed for cooling water only. For hydraulic oil, refer to our Wire Braided Hose or Wire Spiral Hose range.<\/p>\n<p><strong>Q2: What is the <strong>definition<\/strong> of &#8220;non-conductive&#8221; in this context?<\/strong><br \/>\nIt means the EPDM tube does not conduct electricity. This is measured as &gt;10^6 \u03a9 resistance per meter, preventing electrical current from passing through the water column.<\/p>\n<p><strong>Q3: Do you <strong>support<\/strong> custom lengths?<\/strong><br \/>\nYes. As an OEM ODM factory, we can produce any length. For bulk orders, we offer discount pricing. Request a pdf catalog for details.<\/p>\n<p><strong>Q4: Can I use <strong>reusable fittings<\/strong> with this <strong>rubber hose<\/strong>?<\/strong><br \/>\nYes, but we strongly recommend <strong>crimped fittings<\/strong> for permanent assembly to ensure leak-proof service under thermal cycling.<\/p>\n<p><strong>Q5: What is your <strong>supply<\/strong> lead time for export?<\/strong><br \/>\nAs a leading exporter from china, standard supply is 15-20 days. Wholesale orders over 5,000m receive priority production.<\/p>\n<p><strong>Q6: Do you provide <strong>flanges<\/strong> or <strong>adapters<\/strong>?<\/strong><br \/>\nYes. We supply companion flanges, camlock adapters, and NPT\/BSP adapters as part of the complete Solution.<\/p>\n<p>Ready to stop unplanned downtime on your furnace lines? Source the reliable Non-Conductive Furnace Door Hose directly from a trusted manufacturer. Whether you need a single length or a bulk wholesale contract, we provide the Service, Support, and Solution you need.<\/p>\n<p>Contact us now to request a pdf specification, get bulk discount pricing, or discuss OEM ODM customization. Ask about our free hose assembly consultation with crimped fittings and protective sleeves.<\/p>","protected":false},"excerpt":{"rendered":"<p>Product Overview Definition &amp; Standard: The Non-Conductive Furnace Door Hose is a specialist rubber hose engineered to safely convey cooling water to furnace doors in steel mills, glass plants, and foundries. This product meets rigorous international standard requirements for non-conductive hydraulic systems operating in extreme radiant heat environments. As a leading manufacturer in china, we [&hellip;]<\/p>\n","protected":false},"featured_media":3225,"comment_status":"open","ping_status":"closed","template":"","meta":{"_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"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":"","ast-disable-related-posts":"","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":"","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":""}}},"product_brand":[],"product_cat":[272],"product_tag":[279,311,312,313,310],"class_list":{"0":"post-3224","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-water-hose","7":"product_tag-china-rubber-hose-manufacturer","8":"product_tag-furnace-door-cooling-hose","9":"product_tag-heat-resistant-rubber-hose","10":"product_tag-high-temperature-water-hose","11":"product_tag-non-conductive-furnace-door-hose","12":"desktop-align-left","13":"tablet-align-left","14":"mobile-align-left","15":"ast-product-gallery-layout-horizontal-slider","16":"ast-product-gallery-with-no-image","17":"ast-product-tabs-layout-horizontal","19":"first","20":"instock","21":"shipping-taxable","22":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.5 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Non-Conductive Furnace Door Hose | HENGHUA China Manufacturer<\/title>\n<meta name=\"description\" content=\"Discover the Non-Conductive Furnace Door Hose for steel mills. 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