{"id":3452,"date":"2026-05-28T09:03:44","date_gmt":"2026-05-28T09:03:44","guid":{"rendered":"https:\/\/www.henghuahose.com\/?post_type=product&#038;p=3452"},"modified":"2026-06-07T11:53:24","modified_gmt":"2026-06-07T11:53:24","slug":"nr-br-dredge-hose","status":"publish","type":"product","link":"https:\/\/www.henghuahose.com\/de\/product\/nr-br-dredge-hose\/","title":{"rendered":"NR BR Dredge Hose"},"content":{"rendered":"<h2>Product Overview<\/h2>\n<p>The NR BR Dredge Hose is a specialized rubber hose designed for high-wear sediment transport in water conservancy projects. As a china-engineered standard solution, it meets rigorous safety and performance benchmarks for river, lake, and port dredging. This High Pressure Hose serves as the flexible connector between rigid pipelines, absorbing dynamic stresses while conveying abrasive slurries.<\/p>\n<p><strong>Core Structure:<\/strong> The hose features a wear-resistant NR+BR inner tube, a textile cord reinforcement layer (available in three configurations), and a durable BR+EPDM cover, engineered for longevity under continuous abrasion.<\/p>\n<p><strong>Key Performance Highlights:<\/strong> With a working temperature range of -20\u2103 to +80\u2103 and a safety factor of 3:1, this Wire Spiral Hose and Wire Braided Hose variant handles working pressures from 10 to 20 bar. Each length is supplied at 11.8 meters as standard, with bulk orders available.<\/p>\n<p><strong>Core Advantages:<\/strong><\/p>\n<ul>\n<li>Superior abrasion resistance for sand and slurry<\/li>\n<li>Flexible yet collapse-resistant reinforcement<\/li>\n<li>Weather and ozone-resistant cover (BR+EPDM)<\/li>\n<li>Safe and reliable 3:1 safety factor<\/li>\n<\/ul>\n<p><strong>Primary Applications:<\/strong> Essential for sediment dredging, sludge cleaning in waterways, and connecting rigid pipelines in hydraulic engineering projects.<\/p>\n<p><strong>Problem Solved:<\/strong> The NR BR Dredge Hose directly addresses premature wear, collapse under vacuum, and connection failures common with general-purpose hoses in dredging.<\/p>\n<p><strong>Quality Assurance:<\/strong> Produced by a leading manufacturer with full support for OEM ODM requirements, each hose is tested to <strong>standard<\/strong> specifications.<\/p>\n<h2>Product Advantages<\/h2>\n<ul>\n<li><strong>Ultra-High Abrasion Resistance:<\/strong> NR+BR inner compound withstands continuous scouring from sand, gravel, and sludge, extending service life by up to 300% compared to general rubber hoses.<\/li>\n<li><strong>Three Reinforcement Options:<\/strong> Choose from (1) textile cord only, (2) textile cord + helix steel wire (anti-collapse), or (3) textile cord + steel rings (maximum structural integrity), tailored to your application&#8217;s vacuum and pressure demands.<\/li>\n<li><strong>All-Weather Durability:<\/strong> The BR+EPDM cover resists ozone, UV, and temperature extremes from -20\u2103 to +80\u2103, making it ideal for exposed marine and freshwater environments.<\/li>\n<li><strong>Safe &amp; Reliable Connection:<\/strong> Designed for crimped fittings, reusable fittings, adapters, and flanges, ensuring leak-free hose assembly with rigid pipeline systems.<\/li>\n<\/ul>\n<p><strong>Applicable Users:<\/strong> Dredging contractors, water conservancy engineering firms, port authorities, environmental remediation companies, and civil construction project procurement teams.<\/p>\n<h2>Detailed Technical Specifications Table<\/h2>\n<div class=\"ds-scroll-area\">\n<table>\n<thead>\n<tr>\n<th>ID (mm)<\/th>\n<th>ID (inch)<\/th>\n<th>WP (bar)<\/th>\n<th>Length (m) Standard<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>200<\/td>\n<td>8<\/td>\n<td>10~20<\/td>\n<td>11.8<\/td>\n<\/tr>\n<tr>\n<td>250<\/td>\n<td>10<\/td>\n<td>10~20<\/td>\n<td>11.8<\/td>\n<\/tr>\n<tr>\n<td>300<\/td>\n<td>12<\/td>\n<td>10~20<\/td>\n<td>11.8<\/td>\n<\/tr>\n<tr>\n<td>350<\/td>\n<td>14<\/td>\n<td>10~20<\/td>\n<td>11.8<\/td>\n<\/tr>\n<tr>\n<td>400<\/td>\n<td>16<\/td>\n<td>10~20<\/td>\n<td>11.8<\/td>\n<\/tr>\n<tr>\n<td>450<\/td>\n<td>18<\/td>\n<td>10~20<\/td>\n<td>11.8<\/td>\n<\/tr>\n<tr>\n<td>500<\/td>\n<td>20<\/td>\n<td>10~20<\/td>\n<td>11.8<\/td>\n<\/tr>\n<tr>\n<td>600<\/td>\n<td>24<\/td>\n<td>10~20<\/td>\n<td>11.8<\/td>\n<\/tr>\n<tr>\n<td>800<\/td>\n<td>32<\/td>\n<td>10~20<\/td>\n<td>11.8<\/td>\n<\/tr>\n<tr>\n<td>1100<\/td>\n<td>44<\/td>\n<td>10~20<\/td>\n<td>11.8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><strong>Note:<\/strong> Specifications, pressures, colors, and lengths can be customized. Request the pdf datasheet for full specification details.<\/p>\n<h2>Structure and Materials<\/h2>\n<ul>\n<li><strong>Inner Tube (NR+BR):<\/strong> Natural rubber blended with butadiene rubber provides exceptional resistance to abrasive particle erosion while maintaining flexibility for easy routing.<\/li>\n<li><strong>Reinforcement Layer (Three Options):<\/strong>\n<ol>\n<li>High-strength spiral textile cord \u2013 for general dredging.<\/li>\n<li>Textile cord with helix steel wire \u2013 prevents vacuum collapse.<\/li>\n<li>Textile cord with steel rings \u2013 for maximum rigidity and shape retention.<\/li>\n<\/ol>\n<\/li>\n<li><strong>Cover (BR+EPDM):<\/strong> Butadiene and ethylene propylene diene monomer rubber blend delivers outstanding weather, ozone, and UV resistance, plus mechanical protection against impact and dragging.<\/li>\n<\/ul>\n<h3>Engineering Deep Dive: Why Choose Helix Steel Wire or Steel Rings?<\/h3>\n<p>When dredging hoses experience high vacuum or external crushing forces (e.g., from tidal changes or pump cavitation), standard textile reinforcement can collapse. The helix steel wire acts as a spring, maintaining lumen diameter under negative pressure. For extreme cyclic loading (e.g., floating pipeline systems subject to wave action), steel rings provide discrete, high-strength anti-crush nodes, preventing kinking and ensuring continuous flow.<\/p>\n<h3>Media Compatibility Table (Slurry &amp; Water)<\/h3>\n<div class=\"ds-scroll-area\">\n<table>\n<thead>\n<tr>\n<th>Media Type<\/th>\n<th>Compatibility<\/th>\n<th>Recommended Reinforcement<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Sand slurry (\u22645mm)<\/td>\n<td>Excellent<\/td>\n<td>Textile cord + helix wire<\/td>\n<\/tr>\n<tr>\n<td>Mud\/clay slurry<\/td>\n<td>Excellent<\/td>\n<td>Textile cord only<\/td>\n<\/tr>\n<tr>\n<td>Gravel slurry (5-20mm)<\/td>\n<td>Good (cover wear)<\/td>\n<td>Textile cord + steel rings<\/td>\n<\/tr>\n<tr>\n<td>Salt\/brackish water<\/td>\n<td>Excellent (EPDM cover)<\/td>\n<td>Any<\/td>\n<\/tr>\n<tr>\n<td>Fresh water<\/td>\n<td>Excellent<\/td>\n<td>Any<\/td>\n<\/tr>\n<tr>\n<td>Oil-contaminated sludge<\/td>\n<td>Fair (NR limited)<\/td>\n<td>Confirm with technical service<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>Application Industries<\/h2>\n<h3>Specific Use Cases<\/h3>\n<ul>\n<li><strong>Water Conservancy Projects:<\/strong> River dredging, lake sediment removal, reservoir desilting.<\/li>\n<li><strong>Port &amp; Harbor Maintenance:<\/strong> Channel deepening, berth cleaning, ship turn basin dredging.<\/li>\n<li><strong>Environmental Remediation:<\/strong> Contaminated sediment capping and removal, sludge pumping from treatment lagoons.<\/li>\n<li><strong>Civil Construction:<\/strong> Trench dewatering, foundation excavation slurry transfer.<\/li>\n<\/ul>\n<h3>Precise Selection Professional Guide<\/h3>\n<h4>1. Hose Assembly Solution for Dredging Systems<\/h4>\n<p>Your hose assembly should integrate seamlessly with rigid steel or HDPE pipelines. We supply pre-assembled hoses with:<\/p>\n<ul>\n<li>Crimped fittings for permanent, leak-free connections.<\/li>\n<li>Reusable fittings for field repair and modification.<\/li>\n<li>Adapters to convert between flange, camlock, or threaded ends.<\/li>\n<li>Flanges (PN10\/PN16) for direct bolting to pipeline flanges.<\/li>\n<li>Protective sleeves and guards for high-traffic deck areas.<\/li>\n<\/ul>\n<h4>2. NR BR Dredge Hose vs. General Purpose Rubber Hose<\/h4>\n<div>\n<table>\n<thead>\n<tr>\n<th>Feature<\/th>\n<th>NR BR Dredge Hose<\/th>\n<th>Standard Water Hose<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Abrasion resistance<\/td>\n<td>High (NR+BR)<\/td>\n<td>Low (EPDM or NBR)<\/td>\n<\/tr>\n<tr>\n<td>Vacuum support<\/td>\n<td>Optional helix\/rings<\/td>\n<td>None<\/td>\n<\/tr>\n<tr>\n<td>Length standard<\/td>\n<td>11.8m<\/td>\n<td>20-50m (coiled)<\/td>\n<\/tr>\n<tr>\n<td>Flange compatibility<\/td>\n<td>Yes<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>Safety factor<\/td>\n<td>3:1<\/td>\n<td>2:1 or unspecified<\/td>\n<\/tr>\n<tr>\n<td>Best for<\/td>\n<td>Continuous slurry<\/td>\n<td>Intermittent clean water<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h4>3. Industry Pain Points Solved<\/h4>\n<ul>\n<li><strong>&#8220;Our dredge hoses wear through in weeks on sandy rivers.&#8221;<\/strong> \u2013 The NR+BR inner tube is specifically formulated to resist sand abrasion, not just water transfer.<\/li>\n<li><strong>&#8220;Suction hoses collapse when the pump cavitates.&#8221;<\/strong> \u2013 Option 2 (textile cord + helix steel wire) actively resists vacuum collapse, maintaining flow.<\/li>\n<li><strong>&#8220;Floating pipeline hoses kink between pontoons.&#8221;<\/strong> \u2013 Option 3 (textile cord + steel rings) provides rigid segments that flex at the rings, preventing kinking.<\/li>\n<\/ul>\n<h2>Technical Standards and Certifications<\/h2>\n<p>This Wire Spiral Hose and Wire Braided Hose product is manufactured to china national standard specifications, with a 3:1 safety factor exceeding general industrial requirements. It is suitable for applications requiring High Pressure Hose reliability at moderate pressures (10-20 bar). A full pdf technical data sheet listing all material certifications is available upon request.<\/p>\n<h2>Brand and Quality Assurance<\/h2>\n<p>As a professional rubber hosemanufacturer, producer, distributor, wholesaler, and exporter, our factory implements rigorous quality control:<\/p>\n<ul>\n<li><strong>Raw Material Incoming Inspection:<\/strong> Each batch of NR, BR, EPDM, steel wire, and textile cord is tested for adhesion, tensile strength, and hardness before production.<\/li>\n<li><strong>In-Process Monitoring:<\/strong> Extrusion, spiral winding, and vulcanization parameters are continuously logged.<\/li>\n<li><strong>100% Factory Testing:<\/strong> Every NR BR dredge hose length undergoes a hydrostatic proof test at 1.5x working pressure. Videos available upon request.<\/li>\n<li><strong>Laboratory Validation:<\/strong> We conduct burst tests (3x WP minimum), accelerated aging, ozone resistance, and abrasion tests per ASTM standards.<\/li>\n<\/ul>\n<p><strong>Third-Party Certifications:<\/strong> ISO 9001:2015 quality management. Reach out for our latest test reports and CE declarations.<\/p>\n<p><strong>Sustainability Commitment:<\/strong> All materials are RoHS and REACH compliant. The long service life of our hoses reduces environmental waste compared to frequent replacement.<\/p>\n<h2>Installation, Operation, and Maintenance Guide<\/h2>\n<ol>\n<li><strong>Storage:<\/strong> Keep away from ozone sources (motors, transformers). Store at 0-35\u2103, avoid direct sunlight.<\/li>\n<li><strong>Inspection before use:<\/strong> Check cover for cuts or exposed reinforcement. Do not use if steel wire is visible.<\/li>\n<li><strong>Handling:<\/strong> Use proper lifting slings; do not drag over sharp edges. Apply protective sleeves at rub points.<\/li>\n<li><strong>Connection:<\/strong> Use correctly sized crimped fittings or flanges. Never over-torque.<\/li>\n<li><strong>Operation:<\/strong> Avoid sudden pressure surges (close valves slowly). Stay within -20\u2103 to +80\u2103 fluid temperature.<\/li>\n<li><strong>Maintenance:<\/strong> Rinse exterior with fresh water after saltwater use. Inspect for swelling, hardness, or cracking quarterly.<\/li>\n<li><strong>Lifespan:<\/strong> Replace every 3-5 years depending on duty cycle or immediately if reinforcement is exposed.<\/li>\n<\/ol>\n<h2>Frequently Asked Questions (FAQ)<\/h2>\n<p><strong>Q1: What is the <strong>definition<\/strong> of an NR BR dredge hose?<\/strong><br \/>\nA: It is a flexible rubber hose with natural rubber (NR) and butadiene rubber (BR) inner tube, textile cord reinforcement (optionally with steel wire\/rings), and a BR+EPDM cover, specifically engineered for sediment dredging in water projects.<\/p>\n<p><strong>Q2: Can I <strong>buy<\/strong> this hose in <strong>bulk<\/strong> with a <strong>discount<\/strong>?<\/strong><br \/>\nA: Yes. As a leading supplier and wholesaler, we offer volume discounts for project bulk orders. Request a quote to see cost savings.<\/p>\n<p><strong>Q3: What is the <strong>price<\/strong> and <strong>cost<\/strong> of this hose compared to alternatives?<\/strong><br \/>\nA: While initial price is slightly higher than standard water hose, the total cost of ownership is lower due to extended wear life and reduced downtime. Contact us for current pricing.<\/p>\n<p><strong>Q4: Do you provide <strong>OEM ODM<\/strong><strong>service<\/strong>?<\/strong><br \/>\nA: Absolutely. We can customize length, color, working pressure, and labeling. Your brand, our production solution.<\/p>\n<p><strong>Q5: Which <strong>fittings<\/strong> work with this <strong>Wire Spiral Hose<\/strong>?<\/strong><br \/>\nA: We supply compatible crimped fittings, reusable fittings, adapters, flanges, protective sleeves, and guards. An Assembly drawing is available in our pdfspecification sheet.<\/p>\n<p><strong>Q6: How do I get a <strong>pdf<\/strong> of the full <strong>specification<\/strong>?<\/strong><br \/>\nA: Click the request button below or contact our support team. We will email you a detailed pdf within 4 business hours.<\/p>\n<p><strong>Q7: Is this <strong>High Pressure Hose<\/strong> suitable for oil?<\/strong><br \/>\nA: No. For oil transfer, use a nitrile (NBR) hose. This NR BR hose is optimized for water-based slurries.<\/p>\n<p>Stop replacing worn-out dredge hoses every season. Upgrade to the NR BR dredge hose \u2013 engineered for the toughest Chinese river and port conditions.<\/p>\n<p><strong>Request your<\/strong>:<\/p>\n<ul>\n<li>Free consultation and application review<\/li>\n<li>Custom OEM ODM sample<\/li>\n<li>Bulk order discount quote<\/li>\n<li>pdf technical datasheet<\/li>\n<\/ul>\n<p>Contact our engineering support team today. Get the right solution, from hose assembly to fittings. We are your single source from factory to job site.<\/p>","protected":false},"excerpt":{"rendered":"<p>Product Overview The NR BR Dredge Hose is a specialized rubber hose designed for high-wear sediment transport in water conservancy projects. As a china-engineered standard solution, it meets rigorous safety and performance benchmarks for river, lake, and port dredging. This High Pressure Hose serves as the flexible connector between rigid pipelines, absorbing dynamic stresses while [&hellip;]<\/p>\n","protected":false},"featured_media":3453,"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":[527,504],"product_tag":[511,506,525,526,512],"class_list":{"0":"post-3452","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-dredge-hose","7":"product_cat-material-handling-hose","8":"product_tag-dredge-hose-manufacturer","9":"product_tag-dredging-rubber-hose","10":"product_tag-nr-br-dredge-hose","11":"product_tag-slurry-hose-china","12":"product_tag-wire-spiral-hose-dredging","13":"desktop-align-left","14":"tablet-align-left","15":"mobile-align-left","16":"ast-product-gallery-layout-horizontal-slider","17":"ast-product-gallery-with-no-image","18":"ast-product-tabs-layout-horizontal","20":"first","21":"instock","22":"shipping-taxable","23":"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>NR BR Dredge Hose | HENGHUA Manufacturer &amp; Supplier<\/title>\n<meta name=\"description\" content=\"Need a durable NR BR dredge hose for sand slurry? 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