{"id":5603,"date":"2026-07-27T15:27:13","date_gmt":"2026-07-27T13:27:13","guid":{"rendered":"https:\/\/protechcontinental.com\/progressive-cavity-pump-guide\/"},"modified":"2026-07-27T16:04:32","modified_gmt":"2026-07-27T14:04:32","slug":"progressive-cavity-pump-guide","status":"publish","type":"post","link":"https:\/\/protechcontinental.com\/en\/progressive-cavity-pump-guide\/","title":{"rendered":"Progressive cavity pump: operation, applications and selection guide"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"5603\" class=\"elementor elementor-5603 elementor-5568\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-efef9f4 e-flex e-con-boxed e-con e-parent\" data-id=\"efef9f4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6dfa429 elementor-widget elementor-widget-text-editor\" data-id=\"6dfa429\" data-element_type=\"widget\" data-e-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>A <a href=\"https:\/\/protechcontinental.com\/en\/equipment\/helical-screw-pumps\/\"><strong>progressive cavity pump <\/strong><\/a>is designed to handle fluids that are difficult to transfer using conventional pumping technologies, including sludge, highly viscous products, abrasive media and fluids containing solids. In industrial environments where operational reliability is as important as flow rate, its stable performance under demanding conditions makes it one of the most widely used positive displacement pumping technologies. <\/p><p>Cuando el proceso exige control, suavidad de bombeo y fiabilidad mec\u00e1nica, la selecci\u00f3n del equipo no puede hacerse solo por el caudal nominal. La informaci\u00f3n referente al fluido, la presi\u00f3n, la temperatura, el contenido en s\u00f3lidos, el mantenimiento previsto, entre otros, es b\u00e1sica. <\/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-776c9ee elementor-widget elementor-widget-heading\" data-id=\"776c9ee\" data-element_type=\"widget\" data-e-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 a progressive cavity pump and how does it work?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a84beed elementor-widget elementor-widget-text-editor\" data-id=\"a84beed\" data-element_type=\"widget\" data-e-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>A progressive cavity pump, also known as a helical rotor pump, eccentric screw pump or single screw pump, transfers fluid through sealed cavities that move continuously from the suction side to the discharge side. This operating principle delivers a smooth, non-pulsating flow while handling the product with minimal shear. <\/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-23aa360 elementor-widget elementor-widget-heading\" data-id=\"23aa360\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">The progressive cavity principle: rotor and stator<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-63b2c9e elementor-widget elementor-widget-text-editor\" data-id=\"63b2c9e\" data-element_type=\"widget\" data-e-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>Rotor<\/strong>: The rotor is a precision-machined helical metal component, typically manufactured from stainless steel. Its eccentric rotation inside the stator creates continuously progressing cavities that move the fluid smoothly through the pump. <\/p><p><strong>Stator<\/strong>: The stator is an elastomeric component that houses the rotor and forms the pumping cavities. Selecting the appropriate elastomer is essential, as it determines the pump&#8217;s chemical resistance, temperature capability and mechanical durability. <\/p><p>This operating principle minimizes shear forces and helps preserve the physical properties of shear-sensitive products.<\/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-968d8e3 elementor-widget elementor-widget-heading\" data-id=\"968d8e3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Main advantages of industrial progressive cavity pumps<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5fbd8d1 elementor-widget elementor-widget-text-editor\" data-id=\"5fbd8d1\" data-element_type=\"widget\" data-e-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><a href=\"https:\/\/protechcontinental.com\/en\/the-importance-of-choosing-quality-in-helical-pumps\/\">Progressive cavity pumps offer several important advantages:<\/a><\/p><ul><li>Continuous, pulse-free flow for stable transfer and dosing applications.<\/li><li>Excellent self-priming capability, achieving vacuum levels of up to -0.8 bar, depending on the configuration.<\/li><li>Outstanding performance with viscous, abrasive and solids-laden fluids.<\/li><li>Low shear pumping, ideal for sensitive products and delicate mixtures.<\/li><li>Capability to operate at high discharge pressures in multi-stage configurations, with some models reaching 36 bar.<\/li><\/ul>\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-a70a0d9 elementor-widget elementor-widget-heading\" data-id=\"a70a0d9\" data-element_type=\"widget\" data-e-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\">Types of progressive cavity pumps by design and application<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-458bbcc elementor-widget elementor-widget-heading\" data-id=\"458bbcc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Kronoa\u00ae Premium Line Suction (Direct suction)\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-02ed796 elementor-widget elementor-widget-text-editor\" data-id=\"02ed796\" data-element_type=\"widget\" data-e-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><strong>Direct connection:<\/strong> Designed with a direct suction inlet connected to the process pipeline.<\/li><li><strong>High suction capacity:<\/strong> Provides exceptional self-priming capability of up to -0.8 bar.<\/li><li><strong>Operational flexibility:<\/strong> Pumping direction can easily be reversed whenever required by the process.<\/li><li><strong>Maximum robustness: <\/strong>Designed for severe-duty applications involving abrasive or heavily loaded fluids at operating pressures of up to 36 bar.<\/li><\/ul>\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-8aa1e0f elementor-widget elementor-widget-image\" data-id=\"8aa1e0f\" data-element_type=\"widget\" data-e-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=\"800\" height=\"557\" src=\"https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Suction-Succion-directa-1024x713.webp\" class=\"attachment-large size-large wp-image-5573\" alt=\"Serie Kronoa\u00ae Premium Line Suction (Succi\u00f3n directa)\" srcset=\"https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Suction-Succion-directa-1024x713.webp 1024w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Suction-Succion-directa-300x209.webp 300w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Suction-Succion-directa-768x535.webp 768w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Suction-Succion-directa-1536x1070.webp 1536w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Suction-Succion-directa-2048x1427.webp 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<div class=\"elementor-element elementor-element-8eee3a9 elementor-widget elementor-widget-heading\" data-id=\"8eee3a9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"> Kronoa\u00ae Premium Line Hopper (Hopper-fed)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f78b1a3 elementor-widget elementor-widget-text-editor\" data-id=\"f78b1a3\" data-element_type=\"widget\" data-e-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><strong>Forced-feed design:<\/strong> Equipped with a wide hopper and a large-diameter feed screw with reinforced flights.<\/li><li><strong>Reliable product feeding:<\/strong> The ideal solution for transferring highly viscous, dry or dense products that naturally tend to bridge or clog conventional pumping systems.<\/li><\/ul>\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-1a6658d elementor-widget elementor-widget-image\" data-id=\"1a6658d\" data-element_type=\"widget\" data-e-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=\"800\" height=\"552\" src=\"https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Hopper-1024x707.webp\" class=\"attachment-large size-large wp-image-5575\" alt=\"Serie Kronoa\u00ae Premium Line Hopper (Con tolva de alimentaci\u00f3n)\" srcset=\"https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Hopper-1024x707.webp 1024w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Hopper-300x207.webp 300w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Hopper-768x530.webp 768w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Hopper-1536x1060.webp 1536w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Hopper-2048x1414.webp 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<div class=\"elementor-element elementor-element-1a004d4 elementor-widget elementor-widget-heading\" data-id=\"1a004d4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Kronoa\u00ae Premium Line Biomix (Substrate mixer)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b3bda2e elementor-widget elementor-widget-text-editor\" data-id=\"b3bda2e\" data-element_type=\"widget\" data-e-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><strong>Designed for co-digestion:<\/strong> Specifically developed for biogas plants and <a href=\"https:\/\/protechcontinental.com\/en\/biomix-mixing-pump-innovation-in-the-transfer-of-organic-waste-in-co-digestion-applications\/\">organic waste <\/a>recovery facilities.<\/li><li><strong>Integrated mixing:<\/strong> Combines solid substrates such as manure, silage and vegetable waste with liquid phases or recirculated sludge to ensure homogeneous feeding of anaerobic digesters.<\/li><li><strong>Integrated protection: <\/strong>Features a built-in stone trap within the hopper to prevent oversized solids and foreign objects from reaching the rotor-stator assembly.<\/li><\/ul>\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-46cb149 elementor-widget elementor-widget-image\" data-id=\"46cb149\" data-element_type=\"widget\" data-e-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=\"800\" height=\"560\" src=\"https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Biomix-1024x717.webp\" class=\"attachment-large size-large wp-image-5577\" alt=\"Serie Kronoa\u00ae Premium Line Biomix\" srcset=\"https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Biomix-1024x717.webp 1024w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Biomix-300x210.webp 300w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Biomix-768x538.webp 768w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Biomix-1536x1076.webp 1536w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Biomix-2048x1434.webp 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<div class=\"elementor-element elementor-element-9cd3c78 elementor-widget elementor-widget-heading\" data-id=\"9cd3c78\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Kronoa\u00ae Premium Line Vertical (Vertical execution)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bfe99be elementor-widget elementor-widget-text-editor\" data-id=\"bfe99be\" data-element_type=\"widget\" data-e-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><strong>Deep suction capability:<\/strong> Vertical shaft pumps designed to extract highly viscous fluids directly from pits, tanks and collection sumps.<\/li><li><strong>Custom-built configuration: <\/strong>Shaft length and mounting plates are manufactured according to the dimensions of each installation.<\/li><li><strong>Enhanced protection: <\/strong>Available with fluid homogenization systems and protection against foreign objects entering the pump.<\/li><\/ul>\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-a587c74 elementor-widget elementor-widget-image\" data-id=\"a587c74\" data-element_type=\"widget\" data-e-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=\"315\" height=\"1024\" src=\"https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Vertical-315x1024.webp\" class=\"attachment-large size-large wp-image-5579\" alt=\"Serie Kronoa\u00ae Premium Line Vertical (Ejecuci\u00f3n vertical)\" srcset=\"https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Vertical-315x1024.webp 315w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Vertical-92x300.webp 92w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Vertical-472x1536.webp 472w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Serie-Kronoa\u00ae-Premium-Line-Vertical.webp 651w\" sizes=\"(max-width: 315px) 100vw, 315px\" \/>\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<div class=\"elementor-element elementor-element-5ae66e3 elementor-widget elementor-widget-heading\" data-id=\"5ae66e3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Protech Block Line (Compact close-coupled design)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8a58695 elementor-widget elementor-widget-text-editor\" data-id=\"8a58695\" data-element_type=\"widget\" data-e-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><strong>Compact monoblock construction: <\/strong>L-shaped design optimized to maximize pumping capacity while minimizing power consumption.<\/li><li><strong>Designed for moderate pressures: <\/strong>Suitable for low-pressure transfer applications.<\/li><li><strong>Chemical versatility: <\/strong>Recommended for clean or moderately abrasive fluids, including polymer dosing, biological sludge, whey, glycerine and separated digestate.<\/li><\/ul>\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-469c175 elementor-widget elementor-widget-image\" data-id=\"469c175\" data-element_type=\"widget\" data-e-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=\"800\" height=\"671\" src=\"https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Gama-Protech-Block-Line-1024x859.webp\" class=\"attachment-large size-large wp-image-5581\" alt=\"Gama Protech Block Line (Dise\u00f1o monobloc compacto)\" srcset=\"https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Gama-Protech-Block-Line-1024x859.webp 1024w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Gama-Protech-Block-Line-300x252.webp 300w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Gama-Protech-Block-Line-768x644.webp 768w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Gama-Protech-Block-Line-1536x1289.webp 1536w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Gama-Protech-Block-Line.webp 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<div class=\"elementor-element elementor-element-85fda5c elementor-widget elementor-widget-heading\" data-id=\"85fda5c\" data-element_type=\"widget\" data-e-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\">Industrial applications of progressive cavity pumps<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f4a3a10 elementor-widget elementor-widget-text-editor\" data-id=\"f4a3a10\" data-element_type=\"widget\" data-e-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>Thanks to their mechanical reliability under demanding operating conditions, progressive cavity pumps have become essential across numerous <a href=\"https:\/\/protechcontinental.com\/en\/screw-pumps-and-their-industrial-applications\/\">industries<\/a>.<\/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-07e6022 elementor-widget elementor-widget-heading\" data-id=\"07e6022\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Wastewater treatment and sludge handling<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d5c6617 elementor-widget elementor-widget-text-editor\" data-id=\"d5c6617\" data-element_type=\"widget\" data-e-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>In municipal and industrial wastewater treatment plants (WWTPs), progressive cavity pumps are widely used to transfer concentrated sludge, digestate and feed dewatering equipment. Their stable performance helps maintain process reliability where continuous operation is essential. <\/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-2e05369 elementor-widget elementor-widget-heading\" data-id=\"2e05369\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Biogas plants and agricultural energy<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e45feb elementor-widget elementor-widget-text-editor\" data-id=\"6e45feb\" data-element_type=\"widget\" data-e-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>Within biogas facilities, progressive cavity pumps handle manure, agricultural substrates and heavy organic waste. Their ability to process complex materials while ensuring homogeneous feeding makes them ideal for anaerobic digestion systems. <\/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-40c97f4 elementor-widget elementor-widget-heading\" data-id=\"40c97f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Food and beverage industry\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ef160d3 elementor-widget elementor-widget-text-editor\" data-id=\"ef160d3\" data-element_type=\"widget\" data-e-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>Food processing applications often require gentle product handling. Progressive cavity pumps are commonly used for transferring wine, concentrated fruit juices and other viscous products where preserving product integrity is essential. <\/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-838ca78 elementor-widget elementor-widget-heading\" data-id=\"838ca78\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Chemical, paper and cosmetics industries<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-10cfaf0 elementor-widget elementor-widget-text-editor\" data-id=\"10cfaf0\" data-element_type=\"widget\" data-e-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>These pumps are also widely used for dosing polymers, resins, chemicals and other viscous or abrasive products. Their value lies in delivering accurate flow control and repeatable process performance. <\/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-ce094e0 elementor-widget elementor-widget-heading\" data-id=\"ce094e0\" data-element_type=\"widget\" data-e-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 choose the right progressive cavity pump <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-acc9c8d elementor-widget elementor-widget-heading\" data-id=\"acc9c8d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Fluid viscosity and temperature<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-97db58f elementor-widget elementor-widget-text-editor\" data-id=\"97db58f\" data-element_type=\"widget\" data-e-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>Higher viscosity generally requires lower rotational speeds to ensure complete cavity filling. Temperature also affects stator expansion and therefore influences operating clearances. <\/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-e97316b elementor-widget elementor-widget-heading\" data-id=\"e97316b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Operating pressure and required flow rate<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4de25eb elementor-widget elementor-widget-text-editor\" data-id=\"4de25eb\" data-element_type=\"widget\" data-e-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 required discharge pressure determines the number of hydraulic stages needed. Correct sizing avoids unnecessary power consumption while minimizing premature wear. <\/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-34389c3 elementor-widget elementor-widget-heading\" data-id=\"34389c3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Material compatibility (elastomers and alloys)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-515ae55 elementor-widget elementor-widget-text-editor\" data-id=\"515ae55\" data-element_type=\"widget\" data-e-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>Rotor materials, stator elastomers and metallic components must be selected according to the chemical corrosion and abrasive properties of the pumped fluid. Elastomers such as NBR, EPDM and FKM should always be chosen based on actual operating conditions. <\/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-3c50151 elementor-widget elementor-widget-heading\" data-id=\"3c50151\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Maintenance and multi-brand spare parts availability<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ff1a808 elementor-widget elementor-widget-text-editor\" data-id=\"ff1a808\" data-element_type=\"widget\" data-e-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>In industrial facilities, maintenance is just as important as initial equipment selection. Low-wear components and readily available compatible spare parts help minimize downtime and improve plant availability. <\/p><p>A reliable technical partner adds value not only by supplying the equipment but also by providing maintenance support, inspections and responsive after-sales service.<\/p><p>For this reason, <strong>Protech Continental Group<\/strong> offers a dedicated <a href=\"https:\/\/protechcontinental.com\/en\/after-sales\/\">after-sales service department <\/a>together with a comprehensive stock of multi-brand spare parts compatible with the leading progressive cavity pump manufacturers, ensuring fast and cost-effective support whenever required.<\/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-c5d5a65 elementor-widget elementor-widget-heading\" data-id=\"c5d5a65\" data-element_type=\"widget\" data-e-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\">Progressive cavity pump vs. centrifugal pump vs. lobe pump<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a8161ac elementor-widget elementor-widget-image\" data-id=\"a8161ac\" data-element_type=\"widget\" data-e-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=\"800\" height=\"450\" src=\"https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Comparison-of-progressive-cavity-centrifugal-and-rotary-lobe-pumps-1-1024x576.webp\" class=\"attachment-large size-large wp-image-5610\" alt=\"\" srcset=\"https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Comparison-of-progressive-cavity-centrifugal-and-rotary-lobe-pumps-1-1024x576.webp 1024w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Comparison-of-progressive-cavity-centrifugal-and-rotary-lobe-pumps-1-300x169.webp 300w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Comparison-of-progressive-cavity-centrifugal-and-rotary-lobe-pumps-1-768x432.webp 768w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Comparison-of-progressive-cavity-centrifugal-and-rotary-lobe-pumps-1-1536x864.webp 1536w, https:\/\/protechcontinental.com\/wp-content\/uploads\/2026\/07\/Comparison-of-progressive-cavity-centrifugal-and-rotary-lobe-pumps-1.webp 1920w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<div class=\"elementor-element elementor-element-63f62f1 elementor-widget elementor-widget-text-editor\" data-id=\"63f62f1\" data-element_type=\"widget\" data-e-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>In practice, this comparison helps answer a common question: centrifugal pumps rapidly lose efficiency when handling difficult fluids, while progressive cavity pumps offer greater stability and a wider operating window when viscosity or solids content increases.<\/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-3dc6060 elementor-widget elementor-widget-heading\" data-id=\"3dc6060\" data-element_type=\"widget\" data-e-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\">Frequently asked questions about progressive cavity pumps<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5ee0067 elementor-widget elementor-widget-heading\" data-id=\"5ee0067\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Can a progressive cavity pump run dry? <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-17180dd elementor-widget elementor-widget-text-editor\" data-id=\"17180dd\" data-element_type=\"widget\" data-e-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>No. Dry running will damage the elastomer stator within seconds due to friction against the rotor. Dry-run protection systems, such as stator temperature sensors or flow monitoring devices, are essential.  <\/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-c0cae1d elementor-widget elementor-widget-heading\" data-id=\"c0cae1d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What determines the service life of the rotor-stator assembly?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-df86bcd elementor-widget elementor-widget-text-editor\" data-id=\"df86bcd\" data-element_type=\"widget\" data-e-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>Rotor and stator life depends on rotational speed (rpm), fluid abrasiveness, operating pressure and elastomer type (NBR, EPDM or FKM), among other factors. Reducing pump speed through a properly sized geared motor significantly extends component life. <\/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-fce19a5 elementor-widget elementor-widget-heading\" data-id=\"fce19a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What is the difference between the Kronoa\u00ae Premium Line and the Block Line?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d1709aa elementor-widget elementor-widget-text-editor\" data-id=\"d1709aa\" data-element_type=\"widget\" data-e-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 Premium Line is designed for heavy-duty, high-pressure applications (up to 36 bar) and features an independent bearing housing with cardan shaft transmission. The Block Line uses a compact close-coupled design optimized for lower pressures and less abrasive fluids. <\/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-65d193d elementor-widget elementor-widget-heading\" data-id=\"65d193d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Why is after-sales support important at Protech Continental?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c19fcdb elementor-widget elementor-widget-text-editor\" data-id=\"c19fcdb\" data-element_type=\"widget\" data-e-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>After-sales service is one of the strategic pillars of <strong>Protech Continental Group<\/strong>, ensuring operational continuity, extending equipment service life and minimizing downtime.<\/p><p>Our dedicated after-sales department provides specialized technical support, maintenance services and high-quality multi-brand spare parts for the leading positive displacement pumps on the market. We maintain extensive stock of wear components (including rotors, stators, mechanical seals, drive shafts, gaskets and other replacement parts) compatible with brands such as Kronoa, Seepex, Netzsch, Allweiler and Mono, enabling us to provide a fast and effective response whenever our customers need assistance. <\/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-ef7cbb5 elementor-widget elementor-widget-html\" data-id=\"ef7cbb5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<script type=\"application\/ld+json\">{ \"@context\": \"https:\/\/schema.org\", \"@type\": \"BlogPosting\", \"mainEntityOfPage\": { \"@type\": \"WebPage\", \"@id\": \"https:\/\/protechcontinental.com\/en\/progressive-cavity-pump-guide\/\" }, \"url\": \"https:\/\/protechcontinental.com\/en\/progressive-cavity-pump-guide\/\", \"headline\": \"Progressive cavity 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\"2026-07-27T13:27:13+00:00\", \"dateModified\": \"2026-07-27T14:02:40+00:00\", \"keywords\": \"progressive cavity pump, helical screw pumps, wastewater treatment, biogas plants, viscous fluids, industrial pumping\", \"potentialAction\": { \"@type\": \"ReadAction\", \"target\": \"https:\/\/protechcontinental.com\/en\/progressive-cavity-pump-guide\/\" }}<\/script>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>A progressive cavity pump is designed to handle fluids that are difficult to transfer using conventional pumping technologies, including sludge, highly viscous products, abrasive media and fluids containing solids.<\/p>\n","protected":false},"author":6,"featured_media":5570,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_angie_page":false,"content-type":"","page_builder":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-5603","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categorizar"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Progressive cavity pump: guide, operation and applications<\/title>\n<meta name=\"description\" content=\"Discover what a progressive cavity pump is, how it works, its key advantages and the most common industrial applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/protechcontinental.com\/en\/progressive-cavity-pump-guide\/\" 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