The SW-4021 seawater reverse osmosis membrane element is designed for seawater desalination applications requiring high-pressure membrane separation. Used within an RO pressure vessel, the element separates dissolved salts from pretreated seawater to produce a lower-salinity permeate stream. Its specified operating limits include a maximum applied pressure of 1000 psi (6.9 MPa), a maximum temperature of 45\u00b0C and a maximum feed flow of 16 gpm (3.6 m\u00b3\/h). Continuous operation is specified at pH 3\u201310, with a cleaning range of pH 2\u201312. Maximum feedwater turbidity is 1.0 NTU, SDI is 5.0, free chlorine concentration must remain below 0.1 ppm, and the maximum pressure drop across an individual element is 15 psi (0.10 MPa). Proper pretreatment and operating control are essential for membrane protection.<\/p>\n
For seawater desalination equipment manufacturers, system integrators and industrial water treatment solutions providers, the SW-4021 element can be evaluated for new SWRO installations and membrane replacement projects. Procurement evaluation should consider feedwater salinity, pretreatment performance, pressure vessel dimensions, connection configuration and operating requirements. Buyers should provide their required permeate capacity, feedwater analysis and system operating conditions for technical selection. Membrane salt rejection, rated permeate flow, recovery and dimensional compatibility should be confirmed against the applicable SW-4021 manufacturer datasheet before finalizing the system design or replacement order.<\/p>","protected":false},"excerpt":{"rendered":"
SW-4021 seawater RO membrane element for salt removal in desalination systems. Rated for up to 1000 psi and 45\u00b0C, with a maximum feed flow of 16 gpm. Suitable for seawater treatment projects requiring controlled feedwater quality and membrane operating conditions.<\/p>","protected":false},"featured_media":2463,"template":"","meta":{"_gspb_post_css":""},"product_brand":[],"product_cat":[33],"product_tag":[279,278,276],"class_list":["post-2462","product","type-product","status-publish","has-post-thumbnail","product_cat-ro-membranes","product_tag-reverse-osmosis-membrane-technology","product_tag-seawater-desalination","product_tag-seawater-ro-membranes","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/industrial-water-treatment.com\/fr\/wp-json\/wp\/v2\/product\/2462","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/industrial-water-treatment.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/industrial-water-treatment.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/industrial-water-treatment.com\/fr\/wp-json\/wp\/v2\/media\/2463"}],"wp:attachment":[{"href":"https:\/\/industrial-water-treatment.com\/fr\/wp-json\/wp\/v2\/media?parent=2462"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/industrial-water-treatment.com\/fr\/wp-json\/wp\/v2\/product_brand?post=2462"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/industrial-water-treatment.com\/fr\/wp-json\/wp\/v2\/product_cat?post=2462"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/industrial-water-treatment.com\/fr\/wp-json\/wp\/v2\/product_tag?post=2462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}