{"id":10715,"date":"2025-06-12T11:26:41","date_gmt":"2025-06-12T09:26:41","guid":{"rendered":"https:\/\/www.elfifiltration.com\/?post_type=product&#038;p=10715"},"modified":"2025-06-12T13:58:32","modified_gmt":"2025-06-12T11:58:32","slug":"cpa-composite-polyamide-copia","status":"publish","type":"product","link":"https:\/\/www.elfifiltration.com\/en\/products\/membranes\/water-treatment\/cpa-composite-polyamide-copia\/","title":{"rendered":"ESPA (Energy Saving Polyamide)"},"content":{"rendered":"\t\t<div data-elementor-type=\"product-post\" data-elementor-id=\"10715\" class=\"elementor elementor-10715 elementor-10714\" data-elementor-post-type=\"product\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f1a7740 e-flex e-con-boxed e-con e-parent\" data-id=\"f1a7740\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-a8a9cce e-con-full e-flex e-con e-child\" data-id=\"a8a9cce\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9716782 elementor-widget elementor-widget-text-editor\" data-id=\"9716782\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.23.0 - 05-08-2024 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<h3>Combining energy efficiency with high rejection<\/h3>\n<p>The energy required to pressurize RO feed water is the largest contributor to the total energy consumption of the RO plant. <strong>ESPA membranes<\/strong> are the choice for applications demanding high-energy efficiency, with uncompromised productivity and salt rejection. <\/p>\n<p>Operating at significantly lower pressures, ESPA elements produce <strong>high quality water<\/strong> in a range of water treatment applications, ensuring <strong>energy cost savings<\/strong>. ESPA membranes are used in the t<strong>reatment of drinking water, industrial process waters, municipal and industrial waste water recovery and reuse because of this exception performance capability.<\/strong> <\/p>\n<p>These membranes also serve as part of polishing units in seawater desalination plants when boron rejection is critical.<\/p>\n\t\t\t\t\t\t<\/div>\n\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<div class=\"elementor-element elementor-element-fdd3648 e-flex e-con-boxed e-con e-parent\" data-id=\"fdd3648\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-27b2fde e-con-full e-flex e-con e-child\" data-id=\"27b2fde\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d49b183 elementor-widget elementor-widget-text-editor\" data-id=\"d49b183\" 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<h3 style=\"text-align: center;\">SOLUTIONS<\/h3>\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-15e11e2 elementor-widget elementor-widget-ld_tabs\" data-id=\"15e11e2\" data-element_type=\"widget\" data-widget_type=\"ld_tabs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"lqd-tabs lqd-tabs-style-9 d-flex  flex-column 15e11e2 lqd-nav-underline-\" data-tabs-options=\"{&quot;trigger&quot;:&quot;click&quot;}\">\n\n\t\t\t<nav class=\"lqd-tabs-nav-wrap mb-6\">\n\t\t\t\t<ul class=\"reset-ul lqd-tabs-nav d-flex align-items-center flex-wrap  pos-rel\" role=\"tablist\"><li data-controls=\"lqd-tab-2291\" role=\"presentation\" class=\"elementor-repeater-item-1acca6d active\"><a class=\"d-block\" href=\"#lqd-tab-2291\" data-bs-target=\"#lqd-tab-2291\" aria-expanded=\"false\" aria-controls=\"lqd-tab-2291\" role=\"tab\" data-toggle=\"tab\" data-bs-toggle=\"tab\"><span class=\"lqd-tabs-nav-txt\">ESPA1<\/span><\/a><\/li><li data-controls=\"lqd-tab-2292\" role=\"presentation\" class=\"elementor-repeater-item-168c878\"><a class=\"d-block\" href=\"#lqd-tab-2292\" data-bs-target=\"#lqd-tab-2292\" aria-expanded=\"false\" aria-controls=\"lqd-tab-2292\" role=\"tab\" data-toggle=\"tab\" data-bs-toggle=\"tab\"><span class=\"lqd-tabs-nav-txt\">ESPA2<\/span><\/a><\/li><li data-controls=\"lqd-tab-2293\" role=\"presentation\" class=\"elementor-repeater-item-285cdf7\"><a class=\"d-block\" href=\"#lqd-tab-2293\" data-bs-target=\"#lqd-tab-2293\" aria-expanded=\"false\" aria-controls=\"lqd-tab-2293\" role=\"tab\" data-toggle=\"tab\" data-bs-toggle=\"tab\"><span class=\"lqd-tabs-nav-txt\">ESPA4<\/span><\/a><\/li><\/ul>\t\t\t\t\t\t\t<\/nav>\n\n\t\t\t<div class=\"lqd-tabs-content pos-rel\"><div id=\"lqd-tab-2291\" role=\"tabpanel\" class=\"lqd-tabs-pane fade active in\"><p><strong>ESPA1<\/strong> membrane has the same chemistry as the ESPA2 membrane but has a <strong>higher permeability<\/strong>. ESPA1 membrane requires even lower feed pressures than ESPA2 and the energy consumption is also lower.<br>ESPA1 is popularly used in the treatment of <strong>low TDS waters to produce potable water.<\/strong> <\/p><p><strong>ESPA1<\/strong> membrane is available in diameters of 4.0 and 8.0 inches. The 4.0 inch diameter membrane is available in Low Differential LD \u2122 technology. <br>See ESPA2-LD membrane tab for more information on the LD features and benefits.<\/p><table class=\"dcf-table dcf-table-responsive dcf-table-bordered dcf-table-striped dcf-w-100%\"><thead><tr><th scope=\"col\">Product Name<\/th><th scope=\"col\">Dimensions<\/th><th scope=\"col\">Download<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">ESPA1-LD-4040<\/th><td data-label=\"Dimensioni\">4\u2033 diameter &amp; 40\u2033 lenght<\/td><td data-label=\"Download\"><a href=\"https:\/\/www.elfifiltration.com\/schede\/membrane\/ESPA1-LD-4040.pdf\" target=\"_blank\" rel=\"noopener\"><strong>Technical Sheet<\/strong><\/a><\/td><\/tr><tr><th scope=\"row\">ESPA1<\/th><td data-label=\"Dimensioni\">8\u2033 diameter &amp; 40\u2033 lenght<\/td><td data-label=\"Download\"><a href=\"https:\/\/www.elfifiltration.com\/schede\/membrane\/ESPA1.pdf\" target=\"_blank\" rel=\"noopener\"><strong>Technical Sheet<\/strong><\/a><\/td><\/tr><\/tbody><\/table> <\/div><div id=\"lqd-tab-2292\" role=\"tabpanel\" class=\"lqd-tabs-pane fade\"><p><strong>ESPA2<\/strong> membranes provide optimum salt rejection and permeate flows. They are chosen when lower permeate <strong>TDS<\/strong> and lower feed pressures are needed. <\/p><p>ESPA2 membranes offer <strong>highest energy efficiency<\/strong> at lowest costs and are used in large municipal <strong>wastewater reclamation plants<\/strong>.<br>ESPAB are low pressure brackish water membranes having a high rejection for boron.<\/p><p><strong>ESPA2-LD<\/strong> membrane is available in diameters of 4.0 and 8.0 inches. The ESPA2 membranes are available in the LD variant. Low differential <strong>LD Technology\u00ae<\/strong> models are offered to minimize colloidal fouling when used with conventional pre-treatment equipment. These membranes offer consistently low feed pressures and longer intervals between cleanings. <\/p><p><strong>ESPA2<\/strong> and <strong>ESPAB<\/strong> membranes are available in the <strong>MAX<\/strong> variant with 440 ft2 (40.9 m2) active membrane surface area. Increased membrane area reduces capital costs by requiring fewer pressure vessels and less floor space. <\/p><p>Innovations have enabled us to offer the <strong>ESPA2-LD MAX<\/strong> membranes which have a membrane area of 440 ft2 (40.9 m2) and use 34 mil feed spacer.<\/p><table class=\"dcf-table dcf-table-responsive dcf-table-bordered dcf-table-striped dcf-w-100%\"><thead><tr><th scope=\"col\">Product Name<\/th><th scope=\"col\">Dimensions<\/th><th scope=\"col\">Download<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">ESPA2-LD-4040<\/th><td data-label=\"Dimensioni\">4\u2033 diameter &amp; 40\u2033 lenght<\/td><td data-label=\"Download\"><a href=\"https:\/\/www.elfifiltration.com\/schede\/membrane\/ESPA2-LD-4040.pdf\" target=\"_blank\" rel=\"noopener\"><strong>Technical Sheet<\/strong><\/a><\/td><\/tr><tr><th scope=\"row\">ESPA2-LD<\/th><td data-label=\"Dimensioni\">8\u2033 diameter &amp; 40\u2033 lenght<\/td><td data-label=\"Download\"><a href=\"https:\/\/www.elfifiltration.com\/schede\/membrane\/ESPA2-LD.pdf\" target=\"_blank\" rel=\"noopener\"><strong>Technical Sheet<\/strong><\/a><\/td><\/tr><tr><th scope=\"row\">ESPA2 MAX<\/th><td data-label=\"Dimensioni\">8\u2033 diameter &amp; 40\u2033 lenght<\/td><td data-label=\"Download\"><a href=\"https:\/\/www.elfifiltration.com\/schede\/membrane\/ESPA2-MAX.pdf\" target=\"_blank\" rel=\"noopener\"><strong>Technical Sheet<\/strong><\/a><\/td><\/tr><tr><th scope=\"row\">ESPA2-LD MAX<\/th><td data-label=\"Dimensioni\">8\u2033 diameter &amp; 40\u2033 lenght<\/td><td data-label=\"Download\"><a href=\"https:\/\/www.elfifiltration.com\/schede\/membrane\/ESPA2-LD-MAX.pdf\" target=\"_blank\" rel=\"noopener\"><strong>Technical Sheet<\/strong><\/a><\/td><\/tr><\/tbody><\/table> <\/div><div id=\"lqd-tab-2293\" role=\"tabpanel\" class=\"lqd-tabs-pane fade\"><p data-start=\"3664\" data-end=\"3799\"><strong>ESPA4<\/strong> are the lowest feed pressure membranes offering <strong>low energy consumption<\/strong>.<\/p><p data-start=\"3801\" data-end=\"3985\">ESPA4 membranes require <strong>ultra-low pressures<\/strong> without compromising high salt rejection and are commonly used in the <strong>second pass of a reverse osmosis system.<\/strong><\/p><p data-start=\"3987\" data-end=\"4216\">The ESPA4 membranes are available in the <strong>LD variant<\/strong>. Low differential <strong>LD Technology\u00ae<\/strong> models are offered to minimize colloidal fouling when used with conventional pre-treatment equipment. These membranes offer consistently low feed pressures and longer intervals between cleanings. <\/p><p data-start=\"4218\" data-end=\"4361\"><strong>ESPA4-LD HP<\/strong> are high flux membranes offering low energy consumption without compromising on high rejection. These membranes have:<\/p><ul><li data-start=\"4364\" data-end=\"4408\">an active membrane area of 400 ft2 (37.2 m2)<\/li><li data-start=\"4364\" data-end=\"4408\">34 mil brine spacer thickness<\/li><li data-start=\"4364\" data-end=\"4408\">high pressure construction for operation up to 1200 psi (8.27 MPa) to allow greater concentration of feed solution.<\/li><\/ul><p data-start=\"4617\" data-end=\"4824\">ESPA4 membranes are available in the <strong>MAX<\/strong> variant with 440 ft2 (40.9 m2) active membrane surface area. Increased membrane area reduces capital costs by requiring fewer pressure vessels and less floor space.<\/p><table class=\"dcf-table dcf-table-responsive dcf-table-bordered dcf-table-striped dcf-w-100%\"><thead><tr><th scope=\"col\">Product Name<\/th><th scope=\"col\">Dimensions<\/th><th scope=\"col\">Download<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">ESPA4-LD-4040<\/th><td data-label=\"Dimensioni\">4\u2033 diameter &amp; 40\u2033 lenght<\/td><td data-label=\"Download\"><a href=\"https:\/\/www.elfifiltration.com\/schede\/membrane\/ESPA4-LD-4040.pdf\" target=\"_blank\" rel=\"noopener\"><strong>Technical Sheet<\/strong><\/a><\/td><\/tr><tr><th scope=\"row\">ESPA4-LD<\/th><td data-label=\"Dimensioni\">8\u2033 diameter &amp; 40\u2033 lenght<\/td><td data-label=\"Download\"><a href=\"https:\/\/www.elfifiltration.com\/schede\/membrane\/ESPA4-LD.pdf\" target=\"_blank\" rel=\"noopener\"><strong>Technical Sheet<\/strong><\/a><\/td><\/tr><tr><th scope=\"row\">ESPA4-LD HP<\/th><td data-label=\"Dimensioni\">8\u2033 diameter &amp; 40\u2033 lenght<\/td><td data-label=\"Download\"><a href=\"https:\/\/www.elfifiltration.com\/schede\/membrane\/ESPA4-LD-HP.pdf\" target=\"_blank\" rel=\"noopener\"><strong>Technical Sheet<\/strong><\/a><\/td><\/tr><tr><th scope=\"row\">ESPA4 MAX<\/th><td data-label=\"Dimensioni\">8\u2033 diameter &amp; 40\u2033 lenght<\/td><td data-label=\"Download\"><a href=\"https:\/\/www.elfifiltration.com\/schede\/membrane\/ESPA4-MAX.pdf\" target=\"_blank\" rel=\"noopener\"><strong>Technical Sheet<\/strong><\/a><\/td><\/tr><\/tbody><\/table> <\/div><\/div>\n\t\t<\/div>\n\t\t\t<\/div>\n\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>Energy required to pressurize RO feed water is the largest contributor to the total energy consumption of the RO plant. As a result, chlorine tolerant membranes have helped the membrane technology become affordable and cost effective by reducing energy consumption required to operate RO system. ESPA membranes are the choice for applications demanding high-energy efficiency, with uncompromised productivity and salt rejection. <\/p>\n","protected":false},"featured_media":10717,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_cat":[211,214],"product_tag":[],"class_list":{"0":"post-10715","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-membranes","7":"product_cat-water-treatment","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ESPA (Energy Saving Polyamide) | Elfi Filtration<\/title>\n<meta name=\"description\" content=\"ESPA membranes are the choice for applications demanding high-energy efficiency, with uncompromised productivity and salt rejection.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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