{"id":67402,"date":"2025-05-07T16:38:53","date_gmt":"2025-05-07T13:38:53","guid":{"rendered":"https:\/\/unox.com.tr\/check-valve-selection-criteria\/"},"modified":"2025-12-23T11:11:19","modified_gmt":"2025-12-23T08:11:19","slug":"check-valve-selection-criteria","status":"publish","type":"post","link":"https:\/\/unox.com.tr\/en\/check-valve-selection-criteria\/","title":{"rendered":"Check Valve Selection Criteria"},"content":{"rendered":"\n<p>Check valve selection criteria are of great importance in terms of system efficiency. When these criteria are not taken into account, equipment may fail unexpectedly. However, with the correct selection, long-term and trouble-free operation can be ensured. In addition, significant advantages can be achieved in terms of energy efficiency. In this article, we will examine the key factors that should be considered for proper valve selection.    <\/p>\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Sayfa \u0130\u00e7eri\u011fi<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/unox.com.tr\/en\/check-valve-selection-criteria\/#Flow_Direction_and_Pressure_Assessment\" >Flow Direction and Pressure Assessment<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/unox.com.tr\/en\/check-valve-selection-criteria\/#Material_Compatibility_and_Fluid_Properties\" >Material Compatibility and Fluid Properties<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/unox.com.tr\/en\/check-valve-selection-criteria\/#Installation_Location_and_Position\" >Installation Location and Position<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/unox.com.tr\/en\/check-valve-selection-criteria\/#Backflow_Risk_and_Spring-Loaded_Systems\" >Backflow Risk and Spring-Loaded Systems<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/unox.com.tr\/en\/check-valve-selection-criteria\/#Sizing_and_Flow_Rate_Compatibility\" >Sizing and Flow Rate Compatibility<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/unox.com.tr\/en\/check-valve-selection-criteria\/#Noise_and_Vibration_Prevention_Solutions\" >Noise and Vibration Prevention Solutions<\/a><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading\" id=\"h-akis-yonu-ve-basinc-degerlendirmesi\"><span class=\"ez-toc-section\" id=\"Flow_Direction_and_Pressure_Assessment\"><\/span>Flow Direction and Pressure Assessment<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>The first step in valve selection is to determine the flow direction of the system, as check valves allow flow in only one direction. However, some systems may require bidirectional flow, in which case different types of valves should be considered. Additionally, the maximum pressure in the system must be taken into account. For high-pressure lines, products with an appropriate body design should be used. Detailed technical documents on this topic are available on <a class=\"\" href=\"https:\/\/www.unox.com.tr\/\">Unox\u2019s official website<\/a>.      <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-malzeme-uyumu-ve-sivi-ozellikleri\"><span class=\"ez-toc-section\" id=\"Material_Compatibility_and_Fluid_Properties\"><\/span>Material Compatibility and Fluid Properties<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>The type of fluid directly affects the material used for the valve body. For example, stainless steel should be preferred for corrosive liquids, whereas bronze or brass may be sufficient for clean water systems. Incorrect material selection can shorten the lifespan of the equipment. For correct choices, the <a class=\"\" href=\"https:\/\/www.unoxonline.com.tr\/\" rel=\"nofollow noopener\" target=\"_blank\">Unox product catalog<\/a> can be consulted. Additionally, engineering charts related to material resistance should also be reviewed.     <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-montaj-konumu-ve-pozisyonu\"><span class=\"ez-toc-section\" id=\"Installation_Location_and_Position\"><\/span>Installation Location and Position<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>The installation location should be considered when selecting a check valve. The valve must be designed to suit either vertical or horizontal pipelines. However, not every valve type is suitable for all installation positions. Therefore, technical diagrams provided by the manufacturer should be carefully reviewed. Users seeking <a class=\"\" href=\"https:\/\/www.unoxonline.com.tr\/iletisim\/\" rel=\"nofollow noopener\" target=\"_blank\">technical support can contact <\/a>the manufacturer directly.   <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-geri-akis-riski-ve-yayli-sistemler\"><span class=\"ez-toc-section\" id=\"Backflow_Risk_and_Spring-Loaded_Systems\"><\/span>Backflow Risk and Spring-Loaded Systems<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>If there is a risk of backflow in the system, spring-assisted check valves should be preferred, as these systems help minimize the rebound effect. However, spring-loaded models are more sensitive to pressure. Therefore, the spring stiffness must be calculated accurately. <a class=\"\" href=\"https:\/\/unox.com.tr\/en\/\">Unox engineering solutions<\/a> provide support to users in these calculations.   <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-boyutlandirma-ve-debi-uyumu\"><span class=\"ez-toc-section\" id=\"Sizing_and_Flow_Rate_Compatibility\"><\/span>Sizing and Flow Rate Compatibility<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>The diameter of the check valve should be selected according to the system\u2019s flow rate. Smaller diameters can reduce flow, while excessively large diameters may lead to a loss of control. Therefore, the system flow rate must be measured carefully. In addition, the internal diameter and the passage opening of the valve are also important. <a class=\"\" href=\"https:\/\/unox.com.tr\/en\/contact\/\">Unox specialists<\/a> guide users correctly on this matter.    <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"h-ses-ve-titresim-onleme-cozumleri\"><span class=\"ez-toc-section\" id=\"Noise_and_Vibration_Prevention_Solutions\"><\/span>Noise and Vibration Prevention Solutions<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<p>Some types of check valves can generate vibrations during operation, which may damage the piping system. However, this risk can be reduced with models that have a damping design. These products, however, may be more expensive. At this point, <a class=\"\" href=\"https:\/\/www.unoxonline.com.tr\/\" rel=\"nofollow noopener\" target=\"_blank\">Unox product options<\/a> provide a balance between price and performance. Noise control becomes particularly important in sensitive environments.     <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Check valve selection criteria are of great importance in terms of system efficiency. When these criteria are not taken into<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[1734],"tags":[],"class_list":["post-67402","post","type-post","status-publish","format-standard","hentry","category-valve"],"_links":{"self":[{"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/posts\/67402","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/comments?post=67402"}],"version-history":[{"count":1,"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/posts\/67402\/revisions"}],"predecessor-version":[{"id":67403,"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/posts\/67402\/revisions\/67403"}],"wp:attachment":[{"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/media?parent=67402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/categories?post=67402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unox.com.tr\/en\/wp-json\/wp\/v2\/tags?post=67402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}