{"id":141,"date":"2024-08-02T08:21:47","date_gmt":"2024-08-02T08:21:47","guid":{"rendered":"https:\/\/knowledge-center.novatec.com\/?page_id=141"},"modified":"2026-03-27T15:43:58","modified_gmt":"2026-03-27T15:43:58","slug":"pump-types","status":"publish","type":"page","link":"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-pumps\/pump-types\/","title":{"rendered":"Pump Types"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"141\" class=\"elementor elementor-141\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-35385571 e-con-full e-flex e-con e-parent\" data-id=\"35385571\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-106d1df0 e-con-full e-flex e-con e-child\" data-id=\"106d1df0\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-411ac383 elementor-widget elementor-widget-shortcode\" 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href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/system-design\/design-considerations\/\" class = \"hfe-sub-menu-item\">Design Considerations<\/a><\/li>\n\t<li id=\"menu-item-1773\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/system-design\/vacuum-pump-comparison-chart\/\" class = \"hfe-sub-menu-item\">Vacuum Pump Comparison Chart<\/a><\/li>\n\t<li id=\"menu-item-1774\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/system-design\/special-applications\/\" class = \"hfe-sub-menu-item\">Special Applications<\/a><\/li>\n\t<li id=\"menu-item-1775\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/system-design\/choosing-line-size-location\/\" class = \"hfe-sub-menu-item\">Choosing Line Size Location<\/a><\/li>\n\t<li id=\"menu-item-1776\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/system-design\/to-purge-or-not-to-purge\/\" class = \"hfe-sub-menu-item\">To Purge or Not to Purge<\/a><\/li>\n\t<li id=\"menu-item-1777\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/system-design\/the-purpose-of-blowback\/\" class = \"hfe-sub-menu-item\">The Purpose of Blowback<\/a><\/li>\n\t<li id=\"menu-item-1778\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a 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tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/\" class = \"hfe-menu-item\">Components<span class='hfe-menu-toggle sub-arrow hfe-menu-child-0'><i class='fa'><\/i><\/span><\/a><\/div>\n<ul class=\"sub-menu\">\n\t<li id=\"menu-item-1715\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/tubing-bends-couplers-and-flexible-hose\/\" class = \"hfe-sub-menu-item\">Tubing Bends Couplers and Flexible Hose<\/a><\/li>\n\t<li id=\"menu-item-1716\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-pumps\/\" class = \"hfe-sub-menu-item\">Vacuum Pumps<span class='hfe-menu-toggle sub-arrow hfe-menu-child-1'><i class='fa'><\/i><\/span><\/a><\/div>\n\t<ul class=\"sub-menu\">\n\t\t<li id=\"menu-item-3770\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-pumps\/the-ultimate-guide-to-vacuum-pumps-for-plastics-processing-how-to-choose-the-right-one-for-your-plant\/\" class = \"hfe-sub-menu-item\">The Ultimate Guide to Vacuum Pumps for Plastics Processing: How to Choose the Right One for Your Plant<\/a><\/li>\n\t\t<li id=\"menu-item-4168\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-pumps\/is-your-vacuum-pump-a-legal-liability\/\" class = \"hfe-sub-menu-item\">Is Your Vacuum Pump a Legal Liability?<\/a><\/li>\n\t\t<li id=\"menu-item-1717\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-pumps\/pump-types\/\" class = \"hfe-sub-menu-item\">Pump Types<\/a><\/li>\n\t\t<li id=\"menu-item-1718\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-pumps\/pump-performance-characteristics\/\" class = \"hfe-sub-menu-item\">Pump characteristics<\/a><\/li>\n\t\t<li id=\"menu-item-1719\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-pumps\/startup-troubleshooting\/\" class = \"hfe-sub-menu-item\">Startup Troubleshooting<\/a><\/li>\n\t<\/ul>\n<\/li>\n\t<li id=\"menu-item-1720\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/material-selection-methods\/\" class = \"hfe-sub-menu-item\">Material Selection Methods<span class='hfe-menu-toggle sub-arrow hfe-menu-child-1'><i class='fa'><\/i><\/span><\/a><\/div>\n\t<ul class=\"sub-menu\">\n\t\t<li id=\"menu-item-1721\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/material-selection-methods\/open-array-fantail-manifolds\/\" class = \"hfe-sub-menu-item\">Open Array Fantail Manifolds<\/a><\/li>\n\t\t<li id=\"menu-item-1722\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a 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\"hfe-sub-menu-item\">Vacuum Loaders<span class='hfe-menu-toggle sub-arrow hfe-menu-child-1'><i class='fa'><\/i><\/span><\/a><\/div>\n\t<ul class=\"sub-menu\">\n\t\t<li id=\"menu-item-3847\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-loaders\/the-ultimate-guide-to-self-contained-loaders-for-plastics-processing\/\" class = \"hfe-sub-menu-item\">The Ultimate Guide to Self-Contained Loaders for Plastics Processing<\/a><\/li>\n\t\t<li id=\"menu-item-1725\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-loaders\/compressed-air-loaders\/\" class = \"hfe-sub-menu-item\">Compressed Air Loaders<\/a><\/li>\n\t\t<li id=\"menu-item-1726\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-loaders\/modern-loader-design\/\" class = \"hfe-sub-menu-item\">Modern Loader Design<\/a><\/li>\n\t\t<li id=\"menu-item-1727\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-loaders\/powder-loaders\/\" class = \"hfe-sub-menu-item\">Powder Loaders<\/a><\/li>\n\t\t<li id=\"menu-item-1728\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/vacuum-loaders\/pellet-regrind-loaders\/\" class = \"hfe-sub-menu-item\">Pellet Regrind Loaders<\/a><\/li>\n\t<\/ul>\n<\/li>\n\t<li id=\"menu-item-1729\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" 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hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/gaylord-unloading\/lances\/\" class = \"hfe-sub-menu-item\">Lances<\/a><\/li>\n\t<\/ul>\n<\/li>\n\t<li id=\"menu-item-1705\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/vacuum-receivers\/\" class = \"hfe-sub-menu-item\">Vacuum Receivers<span class='hfe-menu-toggle sub-arrow hfe-menu-child-1'><i class='fa'><\/i><\/span><\/a><\/div>\n\t<ul class=\"sub-menu\">\n\t\t<li id=\"menu-item-4041\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/vacuum-receivers\/the-ultimate-guide-to-vacuum-receivers-for-plastics-processing\/\" class = \"hfe-sub-menu-item\">The Ultimate Guide to Vacuum Receivers for Plastics Processing<\/a><\/li>\n\t\t<li id=\"menu-item-1713\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/vacuum-receivers\/features-to-consider\/\" class = \"hfe-sub-menu-item\">Features To Consider<\/a><\/li>\n\t\t<li id=\"menu-item-1714\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/vacuum-receivers\/trouble-shooting-vacuum-receivers\/\" class = \"hfe-sub-menu-item\">Trouble shooting<\/a><\/li>\n\t<\/ul>\n<\/li>\n\t<li id=\"menu-item-1733\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/blenders-and-feeders\/\" class = \"hfe-sub-menu-item\">Blenders and Feeders<\/a><\/li>\n\t<li id=\"menu-item-1734\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/bulk-resin-storage-and-handling\/\" class = \"hfe-sub-menu-item\">Bulk Resin Storage and Handling<span class='hfe-menu-toggle sub-arrow hfe-menu-child-1'><i class='fa'><\/i><\/span><\/a><\/div>\n\t<ul class=\"sub-menu\">\n\t\t<li id=\"menu-item-1735\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a 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href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/supplemental-system-components\/cyclone-dust-collectors\/\" class = \"hfe-sub-menu-item\">Cyclone Dust Collectors<\/a><\/li>\n\t\t<li id=\"menu-item-1741\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/supplemental-system-components\/take-off-box-probes\/\" class = \"hfe-sub-menu-item\">Take off box probes<\/a><\/li>\n\t\t<li id=\"menu-item-1742\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/supplemental-system-components\/proportioning-purge-valves\/\" class = \"hfe-sub-menu-item\">Proportioning Purge Valves<\/a><\/li>\n\t\t<li id=\"menu-item-1743\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/supplemental-system-components\/station-valves\/\" class = \"hfe-sub-menu-item\">Station valves<\/a><\/li>\n\t\t<li id=\"menu-item-1744\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/supplemental-system-components\/drawer-magnets\/\" class = \"hfe-sub-menu-item\">Drawer Magnets<\/a><\/li>\n\t\t<li id=\"menu-item-1745\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/supplemental-system-components\/vacuum-take-off-box-purge-valve\/\" class = \"hfe-sub-menu-item\">Vacuum Take Off Box Purge Valve<\/a><\/li>\n\t\t<li id=\"menu-item-1746\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/supplemental-system-components\/vacuum-take-off-boxes\/\" class = \"hfe-sub-menu-item\">Vacuum Take Off Boxes<\/a><\/li>\n\t<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li id=\"menu-item-1783\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children parent hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/conveying-controls\/\" class = \"hfe-menu-item\">Conveying Controls<span class='hfe-menu-toggle sub-arrow hfe-menu-child-0'><i class='fa'><\/i><\/span><\/a><\/div>\n<ul class=\"sub-menu\">\n\t<li id=\"menu-item-1784\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/conveying-controls\/matching-a-control-to-your-system\/\" class = \"hfe-sub-menu-item\">Matching A Control To Your System<\/a><\/li>\n\t<li id=\"menu-item-1785\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/components\/conveying-controls\/vacuum-system-controls\/\" class = \"hfe-sub-menu-item\">Vacuum System Controls<\/a><\/li>\n<\/ul>\n<\/li>\n<li id=\"menu-item-1786\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children parent hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/conveying-faq\/\" class = \"hfe-menu-item\">FAQ<span class='hfe-menu-toggle sub-arrow hfe-menu-child-0'><i class='fa'><\/i><\/span><\/a><\/div>\n<ul class=\"sub-menu\">\n\t<li id=\"menu-item-1787\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/conveying-faq\/vacuum-system-technology\/\" class = \"hfe-sub-menu-item\">Vacuum System Technology<\/a><\/li>\n\t<li id=\"menu-item-1788\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/conveying-faq\/contamination\/\" class = \"hfe-sub-menu-item\">Contamination<\/a><\/li>\n\t<li id=\"menu-item-1789\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/conveying-faq\/upgrading-systems\/\" class = \"hfe-sub-menu-item\">Upgrading Systems<\/a><\/li>\n\t<li id=\"menu-item-1790\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastics-conveying\/conveying-faq\/angel-hair-fines-and-dust\/\" class = \"hfe-sub-menu-item\">Angel Hair Fines and Dust<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul> \n\t\t\t\t<\/nav>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-403afff7 e-con-full e-flex e-con e-child\" data-id=\"403afff7\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6c1f64c0 elementor-widget elementor-widget-page-title\" data-id=\"6c1f64c0\" data-element_type=\"widget\" data-widget_type=\"page-title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\n\t\t<div class=\"hfe-page-title hfe-page-title-wrapper elementor-widget-heading\">\n\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.novatec.com\/knowledge-center\">\n\t\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">\n\t\t\t\t\t\t\t\t\n\t\t\t\tPump Types  \n\t\t\t<\/h1 > \n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4a3fd145 e-con-full e-flex e-con e-child\" data-id=\"4a3fd145\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-accd96d e-con-full e-flex e-con e-child\" data-id=\"accd96d\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-d9aed6b e-con-full e-flex e-con e-child\" data-id=\"d9aed6b\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-bc609e9 e-con-full e-flex e-con e-child\" data-id=\"bc609e9\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b7d761a elementor-widget elementor-widget-heading\" data-id=\"b7d761a\" 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\">Vacuum Pump Types<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9cd9652 elementor-widget elementor-widget-text-editor\" data-id=\"9cd9652\" 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>Single-stage regenerative pumps<\/strong>\u00a0are the smallest, quietest, and least expensive. They also have the lowest vacuum capacity (about 6-9\u201dHg maximum depending on tube diameter). These pumps are ideal for conveying light loads across shorter distances in systems with up to about 2.5-inch diameter tube.<\/p><p><strong>Two-stage regenerative pumps<\/strong>\u00a0are physically similar to single-stage regenerative pumps. Equivalent single and two-stage models have the same housing diameter, but two stage housing are about twice as deep. They also use more horsepower than the single-stage pumps to create higher vacuums, up to 12\u201dHg. These pumps are best suited for conveying materials across moderate distances and rates, with tubing diameters up to 2.5\u201d diameter.<\/p><p>Regen pumps, by nature of their operating principles and direct drive motor arrangement, start out at a considerably higher velocity, and see larger velocity increases at lower vacuums, than other types of pumps, which lead to ramifications discussed later in the article.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e38cf39 e-con-full e-flex e-con e-child\" data-id=\"e38cf39\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c32b817 elementor-widget elementor-widget-image\" data-id=\"c32b817\" 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=\"170\" height=\"263\" src=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/regen-pump.jpg\" class=\"attachment-large size-large wp-image-143\" 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<div class=\"elementor-element elementor-element-554c3ae elementor-widget elementor-widget-text-editor\" data-id=\"554c3ae\" 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<div>Regenerative Pumps are direct drive pumps whose speed can only be adjusted with a variable speed motor drive. Wide air flow variation can only limited with sophisticated control or mechanical flow limiter.<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c80f2ab e-con-full e-flex e-con e-child\" data-id=\"c80f2ab\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-f5ac48d e-con-full e-flex e-con e-child\" data-id=\"f5ac48d\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c51859f elementor-widget elementor-widget-text-editor\" data-id=\"c51859f\" 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>Positive Displacement (PD) pumps,<\/strong>\u00a0considered by many the industry standard, provide the widest range of airflow (e.g., 55 to 470+ cfm) and vacuum levels up to 14\u201dHg. These pumps are often installed for conveying resins across long distances in systems with tubing up to 4\u201d diameter and larger. PD pumps are more efficient than Regenerative pumps when pulling a comparable vacuum and airflow. They also offer a more consistent airflow as vacuum varies across typical system applications. And belt drives can be configured for lower velocity from the start.<\/p><p>The biggest drawback to PD pumps \u2013 until now \u2013 has been their noise level \u2013 At times over 90 dbA. NOVATEC is now offering PD pumps with sound levels less than 80 dbA without additional sound attenuation, providing a huge improvement for the work environment.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c5e023e e-con-full e-flex e-con e-child\" data-id=\"c5e023e\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2e8fe45 elementor-widget elementor-widget-image\" data-id=\"2e8fe45\" 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=\"300\" height=\"305\" src=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/pd-pump.jpg\" class=\"attachment-large size-large wp-image-144\" alt=\"\" srcset=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/pd-pump.jpg 300w, https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/pd-pump-295x300.jpg 295w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\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-b99678a elementor-widget elementor-widget-text-editor\" data-id=\"b99678a\" 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<div>PD pumps are typically belt driven, so their speed and airflow can be set with sheaves to deliver the appropriate system conveying speed. This is particularly important with difficult to handle resins, and thinner air at high elevation installations.<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9001da0 e-con-full e-flex e-con e-child\" data-id=\"9001da0\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-d555dbf e-con-full e-flex e-con e-child\" data-id=\"d555dbf\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-24ab62c elementor-widget elementor-widget-text-editor\" data-id=\"24ab62c\" 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<h2><strong>High efficiency PD pumps<\/strong><\/h2><p>High efficiency PD pumps provide 20% more vacuum capacity than standard PD pumps. Higher vacuum yields higher conveying rates and longer distances. These pumps produce operating vacuums up to 14\u201dHg (maximum vacuum up to 15\u201dHg) through a rugged design that includes a heavy-duty roller bearing, helical gears, and a tri-lobe rotor, with models ranging from 7.5 hp to 20 hp. They are more energy efficient than regenerative pumps and quieter than traditional PD pumps operating at the same vacuum level<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b69cb28 e-con-full e-flex e-con e-child\" data-id=\"b69cb28\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-19b0a31 elementor-widget elementor-widget-image\" data-id=\"19b0a31\" 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=\"300\" height=\"322\" src=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/he-pd-pump.jpg\" class=\"attachment-large size-large wp-image-145\" alt=\"\" srcset=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/he-pd-pump.jpg 300w, https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/he-pd-pump-280x300.jpg 280w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\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-3d7c192 elementor-widget elementor-widget-text-editor\" data-id=\"3d7c192\" 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<div>High Efficiency PD Pumps can also re-sheaved to adjust their speed to handle difficult-to convey materials and for use in higher elevations.<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6fd5189 e-con-full e-flex e-con e-child\" data-id=\"6fd5189\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-ebb65b7 e-con-full e-flex e-con e-child\" data-id=\"ebb65b7\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8941321 elementor-widget elementor-widget-text-editor\" data-id=\"8941321\" 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<div class=\"flex-grow-1 container-fluid p-0 m-0\" role=\"main\"><div id=\"thick\" class=\"mx-auto mb-3\"><div id=\"kcBodyContainer\" class=\"row\"><div id=\"kcbody\" data-gtmid=\"isSC\"><h2><strong>Claw Pumps<\/strong><\/h2><p>The claw type vacuum pump is a unique design intended to operate at very high vacuum levels. The claw design compresses air while it\u2019s inside the pump housing, increasing the operating vacuum for conveying up to 15\u201dHg (17\u201dHg relief vacuum). These pumps come in models ranging from 4 hp to 15 hp, and they are also more energy efficient, requiring nearly half the energy of regenerative pumps and up to 15% less energy than standard PD pumps for a given vacuum and airflow target. They are also quieter than PD pumps in comparable vacuum ranges. Claw pumps provide the higher conveying rates and plug-breaking capability than any other pump. However, the\u00a0<a href=\"\/knowledge-center\/plastics-conveying\/pump-performance-characteristics\">high relative cost of these pumps (Table 1)<\/a>\u00a0generally limits their use except for unusual conditions that can\u2019t be overcome by other pumps<\/p><\/div><\/div><\/div><\/div><footer class=\"pt-4\"><div class=\"container text-white\"><div class=\"row mb-4\"><section class=\"col-12 col-lg-3 mb-4 mb-lg-0\"><div class=\"mb-3 d-flex\">\u00a0<\/div><\/section><\/div><\/div><\/footer>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-563eb26 e-con-full e-flex e-con e-child\" data-id=\"563eb26\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f657965 elementor-widget elementor-widget-image\" data-id=\"f657965\" 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=\"300\" height=\"298\" src=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/claw-pump.jpg\" class=\"attachment-large size-large wp-image-146\" alt=\"\" srcset=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/claw-pump.jpg 300w, https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/claw-pump-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\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-6854599 elementor-widget elementor-widget-text-editor\" data-id=\"6854599\" 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<div>Claw pumps are most often used when conveying distances are so long that other pumps do not develop sufficient vacuum levels to transfer the required resin rate.<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2709bd07 e-con-full e-flex e-con e-child\" data-id=\"2709bd07\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4bb5e418 elementor-widget elementor-widget-shortcode\" data-id=\"4bb5e418\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\t\t<div data-elementor-type=\"section\" data-elementor-id=\"632\" class=\"elementor elementor-632\" data-elementor-post-type=\"elementor_library\">\n\t\t\t<div class=\"elementor-element elementor-element-f5e2127 e-flex e-con-boxed e-con e-parent\" data-id=\"f5e2127\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-f739977 e-con-full e-flex e-con e-child\" data-id=\"f739977\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cc9d922 elementor-widget elementor-widget-heading\" data-id=\"cc9d922\" 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 the Expert<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3583113 elementor-widget elementor-widget-image\" data-id=\"3583113\" 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<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"777\" src=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/Conveying-Expert-0623-copy-768x777.png\" class=\"attachment-medium_large size-medium_large wp-image-2422\" alt=\"\" srcset=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/Conveying-Expert-0623-copy-768x777.png 768w, https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/Conveying-Expert-0623-copy-296x300.png 296w, https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/Conveying-Expert-0623-copy.png 1000w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Ryan Ismirlian, Conveying Product Engineer Novatec, Inc.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\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-db72973 elementor-widget elementor-widget-heading\" data-id=\"db72973\" 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<h3 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