{"id":9260,"date":"2026-01-23T11:10:08","date_gmt":"2026-01-23T11:10:08","guid":{"rendered":"https:\/\/prudenceeng.lk\/shop\/?post_type=product&#038;p=9260"},"modified":"2026-02-11T04:24:31","modified_gmt":"2026-02-11T04:24:31","slug":"coarse-sand-price-in-sri-lanka","status":"publish","type":"product","link":"https:\/\/prudenceeng.lk\/shop\/coarse-sand-price-in-sri-lanka\/","title":{"rendered":"Coarse Sand"},"content":{"rendered":"<p data-path-to-node=\"3\"><b data-path-to-node=\"3\" data-index-in-node=\"0\">Coarse Sand (2.0\u20134.0mm) Filter Media \u2013 High-Purity Silica Grit for Industrial Water Plants, Multigrade Filters, &amp; Support Bedding<\/b><\/p>\n<h3 data-path-to-node=\"10\"><b data-path-to-node=\"10\" data-index-in-node=\"0\">Coarse Sand (2.0\u20134.0mm) The Backbone of High-Performance Filtration<\/b><\/h3>\n<p data-path-to-node=\"11\">In a multi-layer filtration system, the <b data-path-to-node=\"11\" data-index-in-node=\"40\">2.0\u20134.0mm Coarse Sand<\/b> serves as the critical transition layer between fine media and the gravel base. Its larger grain size is specifically engineered to provide high <b data-path-to-node=\"11\" data-index-in-node=\"207\">hydraulic conductivity<\/b>, ensuring that water passes through the bottom of the filter vessel with minimal resistance and zero pressure loss.<\/p>\n<h3 data-path-to-node=\"12\"><b data-path-to-node=\"12\" data-index-in-node=\"0\">Key Features &amp; Benefits:<\/b><\/h3>\n<ul data-path-to-node=\"13\">\n<li>\n<p data-path-to-node=\"13,0,0\"><b data-path-to-node=\"13,0,0\" data-index-in-node=\"0\">Optimized Support Bedding:<\/b> Effectively holds finer filtration media (like 0.5mm sand or activated carbon) in place, preventing them from clogging the nozzles or lateral collectors at the bottom of the tank.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,1,0\"><b data-path-to-node=\"13,1,0\" data-index-in-node=\"0\">Uniform Flow Distribution:<\/b> The sub-angular to rounded shape of the silica grains promotes an even distribution of water during both the filtration and backwash cycles, eliminating dead zones and &#8220;channeling&#8221;.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,2,0\"><b data-path-to-node=\"13,2,0\" data-index-in-node=\"0\">High Chemical &amp; Thermal Stability:<\/b> Made from 98%+ pure silicon dioxide, this media is chemically inert and acid-resistant. <span class=\"citation-252 citation-end-252\">It will not react with chlorine, ozone, or common water treatment chemicals, maintaining water purity.<\/span><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,3,0\"><b data-path-to-node=\"13,3,0\" data-index-in-node=\"0\"><span class=\"citation-251\">Exceptional Hardness:<\/span><\/b><span class=\"citation-251 citation-end-251\"> With a Mohs hardness of 7, these grains resist crushing and abrasion.<\/span> This means the media maintains its 2-4mm size for years, even in systems with aggressive air-scouring or high-pressure backwash cycles.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,4,0\"><b data-path-to-node=\"13,4,0\" data-index-in-node=\"0\">Pre-Washed &amp; Silt-Free:<\/b> Our coarse sand is thoroughly washed to remove clay, dust, and organic matter. This ensures that your system remains clean from day one and reduces the time required for initial commissioning.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"14\"><b data-path-to-node=\"14\" data-index-in-node=\"0\">Typical Applications in Sri Lanka:<\/b><\/h3>\n<ul data-path-to-node=\"15\">\n<li>\n<p data-path-to-node=\"15,0,0\"><b data-path-to-node=\"15,0,0\" data-index-in-node=\"0\"><span class=\"citation-250\">Industrial Sand Filters:<\/span><\/b><span class=\"citation-250 citation-end-250\"> Acts as the primary support layer in large-scale pressure sand filters (PSF) and multigrade filters (MGF).<\/span><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"15,1,0\"><b data-path-to-node=\"15,1,0\" data-index-in-node=\"0\"><span class=\"citation-249\">Reverse Osmosis (RO) Pre-filtration:<\/span><\/b><span class=\"citation-249 citation-end-249\"> A vital part of the pre-treatment stage to ensure consistent feed water quality for delicate RO membranes.<\/span><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"15,2,0\"><b data-path-to-node=\"15,2,0\" data-index-in-node=\"0\">Wastewater &amp; Sewage Treatment (STP\/ETP):<\/b><span class=\"citation-248 citation-end-248\"> Used in the tertiary treatment phase to remove residual suspended solids and turbidity.<\/span><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"15,3,0\"><b data-path-to-node=\"15,3,0\" data-index-in-node=\"0\">Commercial Swimming Pools:<\/b> Ideal for the base layer in high-rate sand filters for hotels, water parks, and large sports complexes.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"16\"><b data-path-to-node=\"16\" data-index-in-node=\"0\">Technical Specifications:<\/b><\/h3>\n<table data-path-to-node=\"17\">\n<thead>\n<tr>\n<td><strong>Feature<\/strong><\/td>\n<td><strong>Detail<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"17,1,0,0\"><b data-path-to-node=\"17,1,0,0\" data-index-in-node=\"0\">Material<\/b><\/span><\/td>\n<td><span data-path-to-node=\"17,1,1,0\">Natural Silica \/ Quartz Grit<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"17,2,0,0\"><b data-path-to-node=\"17,2,0,0\" data-index-in-node=\"0\">Grain Size Range<\/b><\/span><\/td>\n<td><span data-path-to-node=\"17,2,1,0\">2.0 \u2013 4.0 mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"17,3,0,0\"><b data-path-to-node=\"17,3,0,0\" data-index-in-node=\"0\">Silica Content (SiO\u2082)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"17,3,1,0\">\u2265 98%<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"17,4,0,0\"><b data-path-to-node=\"17,4,0,0\" data-index-in-node=\"0\">Hardness<\/b><\/span><\/td>\n<td><span data-path-to-node=\"17,4,1,0\">7.0 Mohs<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"17,5,0,0\"><b data-path-to-node=\"17,5,0,0\" data-index-in-node=\"0\">Acid Solubility<\/b><\/span><\/td>\n<td><span data-path-to-node=\"17,5,1,0\">&lt; 2%<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"17,6,0,0\"><b data-path-to-node=\"17,6,0,0\" data-index-in-node=\"0\">Shape<\/b><\/span><\/td>\n<td><span data-path-to-node=\"17,6,1,0\">Sub-angular to Rounded<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"17,7,0,0\"><b data-path-to-node=\"17,7,0,0\" data-index-in-node=\"0\">Packaging<\/b><\/span><\/td>\n<td><span data-path-to-node=\"17,7,1,0\">25kg \/ 50kg Bags<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p data-path-to-node=\"6\">Ensure the structural integrity of your filtration system with our <b data-path-to-node=\"6\" data-index-in-node=\"67\">2.0\u20134.0mm Coarse Sand<\/b>. This high-purity silica grit acts as a rugged <b data-path-to-node=\"6\" data-index-in-node=\"136\">support layer<\/b>, preventing finer filter media from leaching into the underdrain system while allowing high-velocity water flow. Triple-washed and precisely graded, it is an essential component for industrial multigrade filters, pressure sand filters, and large-scale pool systems.<\/p>\n<ul data-path-to-node=\"7\">\n<li>\n<p data-path-to-node=\"7,0,0\"><b data-path-to-node=\"7,0,0\" data-index-in-node=\"0\">Grain Size:<\/b> 2.0\u20134.0mm (Grit\/Coarse Grade).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,1,0\"><b data-path-to-node=\"7,1,0\" data-index-in-node=\"0\">Function:<\/b> Serves as a base\/support layer for finer sand or carbon media.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,2,0\"><b data-path-to-node=\"7,2,0\" data-index-in-node=\"0\">Durability:<\/b><span class=\"citation-254 citation-end-254\"> High mechanical strength (Mohs 7) prevents attrition and degradation during backwashing.<\/span><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,3,0\"><b data-path-to-node=\"7,3,0\" data-index-in-node=\"0\"><span class=\"citation-253\">Applications:<\/span><\/b><span class=\"citation-253 citation-end-253\"> RO pre-treatment, wastewater polishing, and municipal water plants.<\/span><\/p>\n<\/li>\n<\/ul>\n","protected":false},"featured_media":9272,"comment_status":"open","ping_status":"closed","template":"","meta":{"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":"","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 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