{"id":30616,"date":"2026-02-25T12:09:04","date_gmt":"2026-02-25T11:09:04","guid":{"rendered":"https:\/\/www.fluimac.com\/?page_id=30616"},"modified":"2026-03-12T17:38:41","modified_gmt":"2026-03-12T16:38:41","slug":"cavitation-in-pumps-meaning-and-useful-tips-to-prevent-it","status":"publish","type":"page","link":"https:\/\/www.fluimac.com\/en\/cavitation-in-pumps-meaning-and-useful-tips-to-prevent-it\/","title":{"rendered":"Cavitation in pumps: meaning and useful tips to prevent it"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"30616\" class=\"elementor elementor-30616 elementor-30615\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-464fa4e elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"464fa4e\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9c56e23\" data-id=\"9c56e23\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4094b5b elementor-widget elementor-widget-heading\" data-id=\"4094b5b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Cavitation in pumps:<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-654d18d elementor-widget elementor-widget-heading\" data-id=\"654d18d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">meaning and useful tips to prevent it<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9eb5820\" data-id=\"9eb5820\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-340e0dd elementor-widget elementor-widget-text-editor\" data-id=\"340e0dd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>When we talk about<strong> cavitation<\/strong>, especially in <a href=\"https:\/\/www.fluimac.com\/en\/how-to-choose-a-centrifugal-pump-technical-guide-and-practical-advice\/\">centrifugal pumps<\/a>, we immediately think of \u201csilent\u201d damage and costly repairs. Understanding what cavitation really is and how to prevent it is essential for protecting the system: typical signs include reduced performance, unusual noises, vibrations, more frequent maintenance, and decreased energy efficiency.<\/p><p>In this article, we will look at what cavitation means, how to recognize it in time, and what strategies to adopt to avoid it.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-806e401 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"806e401\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-279e606\" data-id=\"279e606\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4fa3130 elementor-widget elementor-widget-heading\" data-id=\"4fa3130\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What is cavitation in pumps?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-625ef84 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"625ef84\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-4c2b321 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"4c2b321\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-ee00f80\" data-id=\"ee00f80\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fa8871e elementor-widget elementor-widget-text-editor\" data-id=\"fa8871e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Cavitation<\/strong> refers to the formation and subsequent implosion of vapor bubbles inside the liquid passing through the pump.<\/p><p>The phenomenon begins when, in an area of the circuit (often at <strong>the suction point or at the impeller eye<\/strong>), the pressure drops <strong>below the vapor pressure<\/strong> of the fluid. At that point, the liquid tends to \u201cevaporate locally,\u201d forming bubbles. The bubbles are then drawn towards areas of higher pressure where they collapse rapidly: these implosions generate micro-shocks that can damage the impeller and internal surfaces over time.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3a0954e elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"3a0954e\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-45f64b2\" data-id=\"45f64b2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a487d9a elementor-widget elementor-widget-heading\" data-id=\"a487d9a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Main causes of cavitation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f2cb7a elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"3f2cb7a\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-d5180c8 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"d5180c8\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-d38acea\" data-id=\"d38acea\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1dc8424 elementor-widget elementor-widget-text-editor\" data-id=\"1dc8424\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>There are often multiple causes, which combine with each other. The most frequent are:<\/p><h4><b>1) Local pressure too low compared to vapor pressure<\/b><\/h4><p>If the pressure falls below the evaporation threshold of the fluid (even without heat input), bubble formation becomes likely. In centrifugal pumps, this typically occurs in areas with high fluid velocity, such as the impeller eye, where the pressure can drop rapidly.<br \/><br \/><\/p><h4><b>2) <\/b><a href=\"https:\/\/www.fluimac.com\/en\/prevalence-pump-what-it-means-how-it-is-calculated-and-practical-applications\/\"><b>Insufficient NPSH on suction<\/b><\/a><b><\/b><\/h4><p><strong>NPSH<\/strong> (Net Positive Suction Head) is the safety margin against cavitation.<\/p><ul><li><strong>NPSHa (available)<\/strong>: NPSH available guaranteed by the system (actual suction conditions)<\/li><li><strong>NPSHr (required)<\/strong>: NPSH required by the pump (manufacturer&#8217;s data)<br \/><br \/><\/li><\/ul><p>If <strong>NPSHa &lt; NPSHr<\/strong>, the risk of cavitation increases<br \/>significantly. Good practice: always maintain a safety margin (do not operate at the limit).<br \/><br \/><\/p><h4><a href=\"https:\/\/www.fluimac.com\/en\/pump-characteristic-curve-how-to-interpret-performance-and-efficiency\/\"><b>3) High pressure drops on the suction line<br \/><\/b><\/a><\/h4><p>The suction line is often the most critical point. Sharp bends, partially closed valves, small diameters, long pipes, or clogged filters cause pressure drops, insufficient hydraulic load, and therefore <strong>pressure drops<\/strong> before entering the pump. If the pressure drops below the vapor pressure, cavitation occurs.<br \/><br \/><\/p><h4><b>4) High liquid temperature<\/b><\/h4><p>As the temperature increases, so does the<strong> vapor pressure<\/strong>: the fluid \u201ctends\u201d to vaporize more easily. Therefore, for the same system, a hot liquid requires more favorable suction conditions than a cold one.<br \/><br \/><\/p><h4><b>5) Operating conditions outside the design range (incorrect operating point)<\/b><\/h4><p>If the pump operates far from the recommended point (e.g., due to changes in the system, valves, different flow rates required, etc.), internal conditions may worsen and instability and risks may increase, including cavitation (especially if suction is already borderline).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c26bd69 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"c26bd69\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4ec7769\" data-id=\"4ec7769\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5af9759 elementor-widget elementor-widget-heading\" data-id=\"5af9759\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">In practice<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4d945e8 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"4d945e8\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-8dd3c4c elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"8dd3c4c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-5a55c9c\" data-id=\"5a55c9c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-72a9234 elementor-widget elementor-widget-text-editor\" data-id=\"72a9234\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Cavitation = <strong>local evaporation<\/strong> due to excessively low pressure + nucleation (bubble formation) + <strong>implosion<\/strong> of bubbles when pressure rises.<\/li><li>This often occurs at <strong>the<\/strong> <strong>impeller eye<\/strong>.<\/li><li>Repeated implosions cause <strong>erosion<\/strong> and permanent damage.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-02b3102 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"02b3102\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d676ebd\" data-id=\"d676ebd\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ee4cd6b elementor-widget elementor-widget-heading\" data-id=\"ee4cd6b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Effects and damage caused by cavitation on pumps<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a1f4a4f elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"a1f4a4f\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-5b72013 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"5b72013\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-8514809\" data-id=\"8514809\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4a6589c elementor-widget elementor-widget-text-editor\" data-id=\"4a6589c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Bubbles that collapse near surfaces generate shock waves and <strong>micro-jet<\/strong>s that can cause micro-perforations, erosion, and material loss (especially on the impeller blades).<\/p><p>Typical consequences:<\/p><ul><li>localized erosion on the impeller and volute<\/li><li>increased noise and vibrations<\/li><li>reduced <a href=\"https:\/\/www.fluimac.com\/en\/prevalence-pump-what-it-means-how-it-is-calculated-and-practical-applications\/\">flow rate and head<\/a><\/li><li>deterioration in efficiency and increased consumption<\/li><li>possible stress on seals and bearings (due to vibrations and instability)<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-67d3b01 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"67d3b01\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b3dd71c\" data-id=\"b3dd71c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e289112 elementor-widget elementor-widget-heading\" data-id=\"e289112\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How to recognize cavitation: 5 signs you shouldn't ignore<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3ceb2dd elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"3ceb2dd\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-bd39f23 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"bd39f23\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-fba500e\" data-id=\"fba500e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e759549 elementor-widget elementor-widget-text-editor\" data-id=\"e759549\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The first signs are often acoustic and mechanical:<\/p><ol><li>sharp, intermittent noises, like \u201cpebbles\u201d<\/li><li>increasing vibrations<\/li><li>sudden drops in flow rate or pressure<br \/>fluctuations in power consumption<\/li><li>frequent wear\/damage to seals and related components<br \/><br \/><\/li><\/ol><p>Even \u201cslight\u201d noise should not be underestimated: it could be the onset of cavitation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-973f749 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"973f749\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f093354\" data-id=\"f093354\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1a5e4e8 elementor-widget elementor-widget-heading\" data-id=\"1a5e4e8\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Solutions and prevention<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-615f9f6 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"615f9f6\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-e974ff4 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"e974ff4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-9052380\" data-id=\"9052380\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e5f32af elementor-widget elementor-widget-text-editor\" data-id=\"e5f32af\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Cavitation can be avoided through design choices and good operating practices. Monitoring pressure, flow rate, and absorption helps to detect the phenomenon before it causes damage.<\/p><p>Effective preventive measures:<\/p><ul><li>ensure that<strong> NPSHa is always &gt; NPSHr<\/strong> (with a margin)<\/li><li>reduce suction<strong> pressure drops<\/strong> (adequate diameters, fewer tight bends, clean filters)<\/li><li>position the pump as close as possible to the source and, where possible, with favorable suction<\/li><li>check the fluid temperature (especially if high)<\/li><li>avoid systematically operating off-point (<a href=\"https:\/\/www.fluimac.com\/en\/double-diaphragms-pneumatic-pumps\/\">pump\/system curve<\/a>)<br \/><br \/><\/li><\/ul><h4><b>Recommended operating practices<\/b><\/h4><ul><li>correctly size suction side pipes and accessories<\/li><li>keep filters and suction lines clean<\/li><li>limit sharp bends, restrictions, and \u201cthrottled\u201d valves on the <strong>suction side<\/strong><\/li><li>periodically check inlet pressure and NPSH conditions<\/li><li>use suitable materials and components in the most stressed areas (when necessary)<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a9250d0 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"a9250d0\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-01cc08b\" data-id=\"01cc08b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-79244db elementor-widget elementor-widget-heading\" data-id=\"79244db\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">In summary<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aaa1639 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"aaa1639\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-6a5e726 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"6a5e726\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-6cda986\" data-id=\"6cda986\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1ec7dfd elementor-widget elementor-widget-text-editor\" data-id=\"1ec7dfd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Cavitation requires attention both during design and operation. Small precautions, listening to signals, and proper maintenance extend the life of the pump and maintain high system performance.<\/p><p>At Fluimac, we support our customers in choosing and managing the most suitable pumps, simulating real working conditions to achieve consistent performance over time.<\/p><h4><strong><a href=\"#form\">Request a consultation<\/a><\/strong><\/h4>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2c17791 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2c17791\" data-element_type=\"section\" id=\"form\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-da0b0db\" data-id=\"da0b0db\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4fe8f35 elementor-widget elementor-widget-heading\" data-id=\"4fe8f35\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Ask for advice\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-96568cb elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"96568cb\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-28b9304 elementor-widget elementor-widget-text-editor\" data-id=\"28b9304\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Do you need support in choosing the centrifugal pump most in line with your specific fluid handling needs?<\/span><\/p><p><span style=\"font-weight: 400;\">Fill out the form below and you will be contacted by our staff.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f9657ad elementor-widget elementor-widget-global elementor-global-15406 elementor-widget-html\" data-id=\"f9657ad\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<script charset=\"utf-8\" type=\"text\/javascript\" src=\"\/\/js-eu1.hsforms.net\/forms\/embed\/v2.js\" data-cmp-ab=\"2\"><\/script>\n<script>\n  hbspt.forms.create({\n    region: \"eu1\",\n    portalId: \"144007426\",\n    formId: \"e7d4f482-c737-4f74-98af-d845d77139de\"\n  });\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-fc7312e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fc7312e\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4fbfbdc\" data-id=\"4fbfbdc\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bdc16f1 elementor-widget elementor-widget-heading\" data-id=\"bdc16f1\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The best solutions, certified\u200b<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0adb21f elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"0adb21f\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-daf0fb0 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"daf0fb0\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-14 elementor-inner-column elementor-element elementor-element-cfafe32\" data-id=\"cfafe32\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-712a804 elementor-widget elementor-widget-image\" data-id=\"712a804\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"425\" height=\"425\" src=\"https:\/\/www.fluimac.com\/wp-content\/uploads\/2024\/04\/certificazione_01.webp\" class=\"attachment-large size-large wp-image-8377\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-14 elementor-inner-column elementor-element elementor-element-273aa74\" data-id=\"273aa74\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e2ca8fd elementor-widget elementor-widget-image\" data-id=\"e2ca8fd\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"425\" height=\"425\" src=\"https:\/\/www.fluimac.com\/wp-content\/uploads\/2024\/04\/certificazione_02.webp\" class=\"attachment-large size-large wp-image-8380\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-14 elementor-inner-column elementor-element elementor-element-50c8f42\" data-id=\"50c8f42\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-62610a5 elementor-widget elementor-widget-image\" data-id=\"62610a5\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"425\" height=\"425\" src=\"https:\/\/www.fluimac.com\/wp-content\/uploads\/2024\/04\/certificazione_03.webp\" class=\"attachment-large size-large wp-image-8383\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-14 elementor-inner-column elementor-element elementor-element-3f53272\" data-id=\"3f53272\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-85d0561 elementor-widget elementor-widget-image\" data-id=\"85d0561\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"425\" height=\"425\" src=\"https:\/\/www.fluimac.com\/wp-content\/uploads\/2024\/04\/certificazione_04.webp\" class=\"attachment-large size-large wp-image-8386\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-14 elementor-inner-column elementor-element elementor-element-b9fce43\" data-id=\"b9fce43\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a8bf1c9 elementor-widget elementor-widget-image\" data-id=\"a8bf1c9\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"425\" height=\"425\" src=\"https:\/\/www.fluimac.com\/wp-content\/uploads\/2024\/04\/certificazione_05.webp\" class=\"attachment-large size-large wp-image-8389\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-14 elementor-inner-column elementor-element elementor-element-8647c3b\" data-id=\"8647c3b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b0f2ced elementor-widget elementor-widget-image\" data-id=\"b0f2ced\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"425\" height=\"425\" src=\"https:\/\/www.fluimac.com\/wp-content\/uploads\/2024\/04\/certificazione_FDA-COMPLIANT.webp\" class=\"attachment-large size-large wp-image-8392\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-14 elementor-inner-column elementor-element elementor-element-0c83cd3\" data-id=\"0c83cd3\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e61a5b9 elementor-widget elementor-widget-image\" data-id=\"e61a5b9\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"425\" height=\"425\" src=\"https:\/\/www.fluimac.com\/wp-content\/uploads\/2024\/04\/certificazione_07.webp\" class=\"attachment-large size-large wp-image-8395\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Cavitation in pumps: meaning and useful tips to prevent it When we talk about cavitation, especially in centrifugal pumps, we immediately think of \u201csilent\u201d damage and costly repairs. Understanding what cavitation really is and how to prevent it is essential for protecting the system: typical signs include reduced performance, unusual noises, vibrations, more frequent maintenance, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8374,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":"","_wp_rev_ctl_limit":""},"class_list":["post-30616","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cavitation in pumps: meaning and useful tips to prevent it<\/title>\n<meta name=\"description\" content=\"Unusual noises or pressure drops? It could be cavitation. Learn to recognize the signs, calculate NPSH correctly, and protect your pump with preventive maintenance strategies.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fluimac.com\/en\/cavitation-in-pumps-meaning-and-useful-tips-to-prevent-it\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cavitation in pumps: meaning and useful tips to prevent it\" \/>\n<meta property=\"og:description\" content=\"Unusual noises or pressure drops? It could be cavitation. 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