{"id":1205,"date":"2026-10-06T07:03:29","date_gmt":"2026-10-06T07:03:29","guid":{"rendered":"https:\/\/wdlvalve.com\/?p=1205"},"modified":"2026-10-06T07:03:29","modified_gmt":"2026-10-06T07:03:29","slug":"%d8%af%d9%84%d9%8a%d9%84-%d8%a7%d8%ae%d8%aa%d9%8a%d8%a7%d8%b1-%d8%a7%d9%84%d8%b5%d9%85%d8%a7%d9%85%d8%a7%d8%aa-%d8%a7%d9%84%d8%ae%d8%a7%d8%b5%d8%a9-%d8%a8%d9%85%d8%ae%d9%84%d9%81%d8%a7%d8%aa-%d8%a7","status":"publish","type":"post","link":"https:\/\/wdlvalve.com\/ar\/%d8%af%d9%84%d9%8a%d9%84-%d8%a7%d8%ae%d8%aa%d9%8a%d8%a7%d8%b1-%d8%a7%d9%84%d8%b5%d9%85%d8%a7%d9%85%d8%a7%d8%aa-%d8%a7%d9%84%d8%ae%d8%a7%d8%b5%d8%a9-%d8%a8%d9%85%d8%ae%d9%84%d9%81%d8%a7%d8%aa-%d8%a7\/","title":{"rendered":"\u0627\u062e\u062a\u064a\u0627\u0631 \u0635\u0645\u0627\u0645\u0627\u062a \u0645\u062e\u0644\u0641\u0627\u062a \u0627\u0644\u062a\u0639\u062f\u064a\u0646: 7 \u0625\u062c\u0631\u0627\u0621\u0627\u062a \u0641\u062d\u0635 \u0645\u062c\u0631\u0628\u0629 \u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0645\u0644\u0627\u0637"},"content":{"rendered":"<article style=\"max-width: 1180px; margin: 0 auto; padding: 20px; font-family: Arial,Helvetica,sans-serif; color: #1f2937; line-height: 1.75; box-sizing: border-box;\">\n<header>\n<p style=\"font-size: 18px; margin: 0 0 22px;\"><strong>Mining Tailings Valve Selection<\/strong> starts with the slurry, not the pipe size. Solids concentration, particle size and hardness, pressure, flow direction, chemistry, operating cycles and maintenance access all affect the valve design. A valve that handles clean water may wear quickly or jam when solids settle in its body.<\/p>\n<\/header>\n<aside style=\"padding: 18px 20px; margin: 0 0 26px; border-left: 5px solid #1473b8; background: #eef7fc;\"><strong>Why it matters:<\/strong> A recent Pumps &amp; Systems feature on tailings operations highlighted high solids, abrasion, corrosion exposure and maintainability as key flow-control concerns. The right valve depends on the service duty: isolation and throttling usually call for different designs.<\/aside>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">What Makes Tailings Service Difficult for Valves?<\/h2>\n<p>Tailings are mixtures of process water and finely ground mineral solids. Their density, particle shape, abrasiveness and chemistry vary by mine and process stage. Solids can erode seats and body surfaces, collect in cavities, prevent full closure or increase actuator force.<\/p>\n<p>Corrosion can add to mechanical wear when the slurry contains reagents, dissolved salts or low-pH water. Long pipeline runs, pump trips and pressure changes also affect valve loads. That is why Mining Tailings Valve Selection should use actual process data rather than a generic \u201cslurry duty\u201d label.<\/p>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">Which Valve Types Are Used in Tailings Pipelines?<\/h2>\n<div style=\"width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 16px 0 24px;\">\n<table style=\"width: 100%; min-width: 780px; border-collapse: collapse; border: 1px solid #111!important; background: #fff;\" border=\"1\" rules=\"all\" cellspacing=\"0\" cellpadding=\"10\">\n<thead style=\"background: #eaf2f8;\">\n<tr>\n<th style=\"border: 1px solid #111!important; text-align: left;\" scope=\"col\">\u0646\u0648\u0639 \u0627\u0644\u0635\u0645\u0627\u0645<\/th>\n<th style=\"border: 1px solid #111!important; text-align: left;\" scope=\"col\">Typical Duty<\/th>\n<th style=\"border: 1px solid #111!important; text-align: left;\" scope=\"col\">Selection Checks<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>Knife gate valve<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">On\/off isolation in solids-bearing lines<\/td>\n<td style=\"border: 1px solid #111!important;\">Gate clearance, seat design, solids evacuation, pressure rating and whether the valve is designed for the flow direction<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>Pinch valve<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">Isolation or control in compatible abrasive slurries<\/td>\n<td style=\"border: 1px solid #111!important;\">Sleeve material, closing pressure, solids size, temperature and sleeve replacement access<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>Ball or plug valve<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">Selected slurry duties where port geometry and trim suit the solids<\/td>\n<td style=\"border: 1px solid #111!important;\">Port size, cavity and seat design, erosion risk and cleaning requirements<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>Butterfly valve<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">Large-line isolation or flow regulation in suitable services<\/td>\n<td style=\"border: 1px solid #111!important;\">Disc exposure, seat compatibility, particle impact and required throttling range<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>Check valve<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">Backflow prevention at pump discharge<\/td>\n<td style=\"border: 1px solid #111!important;\">Solids settling, closing speed, pressure loss, water hammer and maintenance access<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Knife gate and pinch valves are frequently considered for abrasive tailings, but neither is an automatic choice for every line. Confirm the valve manufacturer\u2019s pressure, temperature, flow direction and solids limits before specifying a model.<\/p>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">How Should Valve Materials Be Selected?<\/h2>\n<p>The wetted materials must resist both abrasion and corrosion. A harder trim may help where particles cause impact or cutting wear, while a replaceable elastomer sleeve or seat may be preferable when the design isolates the body from the slurry. The correct option depends on particle size, mineral hardness, pH, chemical additives and temperature.<\/p>\n<div style=\"width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 16px 0 24px;\">\n<table style=\"width: 100%; min-width: 720px; border-collapse: collapse; border: 1px solid #111!important; background: #fff;\" border=\"1\" rules=\"all\" cellspacing=\"0\" cellpadding=\"10\">\n<thead style=\"background: #eaf2f8;\">\n<tr>\n<th style=\"border: 1px solid #111!important; text-align: left;\" scope=\"col\">\u0627\u0644\u0645\u0643\u0648\u0646<\/th>\n<th style=\"border: 1px solid #111!important; text-align: left;\" scope=\"col\">Questions to Resolve<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>Body and liner<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">Will the body contact the slurry? Is corrosion protection or a replaceable liner required?<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>Gate, disc or plug<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">What are the particle hardness, size, velocity and impact direction?<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>Seat or sleeve<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">Is the elastomer or polymer compatible with process chemicals, temperature and shutoff needs?<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>Stem and packing<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">Can the stem, packing and bearings tolerate the operating cycles and site exposure?<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>Fasteners and coating<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">Will external corrosion, washdown, dust or outdoor weather affect service life?<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Material names alone do not establish suitability. Ask for confirmation against the process chemistry and operating envelope, and identify which parts are wetted, coated, lined or replaceable.<\/p>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">7 Mining Tailings Valve Selection Checks Before Ordering<\/h2>\n<ol style=\"padding-left: 22px;\">\n<li><strong>Describe the slurry.<\/strong> Provide solids concentration, particle size distribution, mineral type, hardness, pH and chemical additives.<\/li>\n<li><strong>Give operating conditions.<\/strong> State normal and maximum pressure, temperature, flow velocity and differential pressure.<\/li>\n<li><strong>Define the valve function.<\/strong> Specify isolation, throttling, pump protection or emergency shutoff.<\/li>\n<li><strong>Confirm flow direction.<\/strong> State whether pressure or flow can reverse and whether bidirectional sealing is required.<\/li>\n<li><strong>Set the leakage requirement.<\/strong> Identify acceptable seat leakage and any external leakage requirement separately.<\/li>\n<li><strong>Plan actuation.<\/strong> Provide operating frequency, available air or power, required closing time and fail position.<\/li>\n<li><strong>Consider maintenance.<\/strong> Check access for cleaning, seat or sleeve replacement, lifting and isolation during service.<\/li>\n<\/ol>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">Why Does Maintenance Access Affect Total Cost?<\/h2>\n<p>A valve with a lower purchase price can cost more over time if it wears quickly, is difficult to remove or requires long shutdowns for service. For remote tailings lines, consider spare-part availability, replaceable wear components, lifting space and whether maintenance can be planned around production windows.<\/p>\n<p>Record inspection findings such as leakage, closing time, actuator pressure and wear location. These details help identify whether the problem comes from material selection, operating conditions, installation or maintenance practice.<\/p>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">Common Tailings Valve Selection Mistakes<\/h2>\n<ul style=\"padding-left: 22px;\">\n<li>Choosing a valve from nominal size without reviewing solids and pressure data.<\/li>\n<li>Using a general-purpose gate valve where solids can collect in body cavities.<\/li>\n<li>Using a throttling valve outside its approved control range, accelerating erosion.<\/li>\n<li>Selecting an elastomer without checking chemical compatibility and temperature.<\/li>\n<li>Ignoring pump-trip pressure surges and the risk of reverse flow.<\/li>\n<li>Leaving no space to remove the actuator or replace a sleeve, seat or liner.<\/li>\n<\/ul>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">How Can WDL Valve Support a Mining Valve Enquiry?<\/h2>\n<p>WDL Valve supplies industrial valves and can review project requirements for mining and mineral-processing pipelines. Send the slurry data, line size, pressure class, valve function, flow direction, materials, actuation and testing requirements. The final valve type and construction should be confirmed against the approved datasheet and drawing.<\/p>\n<p>For general valve and application information, visit the <a href=\"https:\/\/wdlvalve.com\/ar\/applications\/\">WDL Valve applications page<\/a>. For a project review, <a href=\"https:\/\/wdlvalve.com\/ar\/%d8%a7%d8%aa%d8%b5%d9%84-%d8%a8%d9%86%d8%a7\/\">contact WDL Valve<\/a>.<\/p>\n<p>For further technical reading, see the recent <a href=\"https:\/\/www.pumpsandsystems.com\/article\/how-reliable-flow-control-improves-tailings-operations\/\" target=\"_blank\" rel=\"noopener noreferrer\">Pumps &amp; Systems article on tailings flow control<\/a> \u0648 <a href=\"https:\/\/www.emerson.com\/en\/final-control\/catalog\/solutions\/common-applications\/mining\/slurry-valves\" target=\"_blank\" rel=\"noopener noreferrer\">Emerson\u2019s slurry valve application overview<\/a>.<\/p>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">\u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/h2>\n<h3 style=\"font-size: 21px; color: #173f67;\">Which valve is best for mining tailings?<\/h3>\n<p>There is no single best valve for every tailings line. Knife gate valves are often considered for on\/off isolation, while pinch valves may suit isolation or control where the sleeve is compatible with the slurry. Pressure, solids, chemistry and operating function determine the final choice.<\/p>\n<h3 style=\"font-size: 21px; color: #173f67;\">Can a knife gate valve control slurry flow?<\/h3>\n<p>Knife gate valves are generally selected for isolation. Prolonged throttling can expose the gate and seat to high-velocity abrasive flow. Use a valve designed and sized for control when modulating flow is required.<\/p>\n<h3 style=\"font-size: 21px; color: #173f67;\">What information is needed for a tailings valve quotation?<\/h3>\n<p>Provide slurry composition, solids concentration, particle size, pressure, temperature, line size, flow direction, valve function, cycle frequency, material requirements and actuator details.<\/p>\n<h3 style=\"font-size: 21px; color: #173f67;\">How can valve wear be reduced?<\/h3>\n<p>Match the valve geometry and wetted materials to the slurry, avoid unapproved throttling, account for pump transients and provide access to inspect or replace wear parts.<\/p>\n<\/section>\n<section style=\"margin-top: 30px; padding: 24px; background: #0b2f55; color: #fff; border-radius: 8px; text-align: center;\">\n<h2 style=\"margin: 0 0 10px; font-size: 27px; color: #fff;\">Discuss Your Mining Valve Application<\/h2>\n<p style=\"margin: 0 0 18px;\">Send WDL Valve your slurry properties, pipeline data and valve duty for a project review.<\/p>\n<p><a style=\"display: inline-block; padding: 12px 22px; background: #f59e0b; color: #111; text-decoration: none; font-weight: bold; border-radius: 5px;\" href=\"https:\/\/wdlvalve.com\/ar\/%d8%a7%d8%aa%d8%b5%d9%84-%d8%a8%d9%86%d8%a7\/\">\u0627\u0637\u0644\u0628 \u0639\u0631\u0636 \u0623\u0633\u0639\u0627\u0631<\/a><\/p>\n<\/section>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>Mining Tailings Valve Selection starts with the slurry, not the pipe size. Solids concentration, particle size and hardness, pressure, flow direction, chemistry, operating cycles and maintenance access all affect the valve design. A valve that handles clean water may wear quickly or jam when solids settle in its body. Why it matters: A recent Pumps&#8230;<\/p>","protected":false},"author":1,"featured_media":1207,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"default","_kad_post_title":"default","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[52],"tags":[],"class_list":["post-1205","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/wdlvalve.com\/ar\/wp-json\/wp\/v2\/posts\/1205","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wdlvalve.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wdlvalve.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wdlvalve.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wdlvalve.com\/ar\/wp-json\/wp\/v2\/comments?post=1205"}],"version-history":[{"count":1,"href":"https:\/\/wdlvalve.com\/ar\/wp-json\/wp\/v2\/posts\/1205\/revisions"}],"predecessor-version":[{"id":1208,"href":"https:\/\/wdlvalve.com\/ar\/wp-json\/wp\/v2\/posts\/1205\/revisions\/1208"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wdlvalve.com\/ar\/wp-json\/wp\/v2\/media\/1207"}],"wp:attachment":[{"href":"https:\/\/wdlvalve.com\/ar\/wp-json\/wp\/v2\/media?parent=1205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wdlvalve.com\/ar\/wp-json\/wp\/v2\/categories?post=1205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wdlvalve.com\/ar\/wp-json\/wp\/v2\/tags?post=1205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}