{"id":2468,"date":"2026-02-25T20:15:50","date_gmt":"2026-02-25T20:15:50","guid":{"rendered":"https:\/\/tqwater.co.za\/?post_type=product&#038;p=2468"},"modified":"2026-03-22T05:49:00","modified_gmt":"2026-03-22T05:49:00","slug":"2inch-ro-frp-housing-end-cap-50-8-mm","status":"publish","type":"product","link":"https:\/\/tqwater.co.za\/?product=2inch-ro-frp-housing-end-cap-50-8-mm","title":{"rendered":"2inch RO FRP Housing End Cap 50.8 mm"},"content":{"rendered":"<ul>\n<li data-start=\"243\" data-end=\"299\">\n<p data-start=\"245\" data-end=\"299\"><strong data-start=\"245\" data-end=\"258\">Material:<\/strong> Glass-reinforced polypropylene (PP-GF)<\/p>\n<\/li>\n<li data-start=\"300\" data-end=\"347\">\n<p data-start=\"302\" data-end=\"347\"><strong data-start=\"302\" data-end=\"322\">Pressure Rating:<\/strong> Up to 10\u202fbar \/ 145\u202fpsi<\/p>\n<\/li>\n<li data-start=\"348\" data-end=\"428\">\n<p data-start=\"350\" data-end=\"428\"><strong data-start=\"350\" data-end=\"363\">Features:<\/strong> Dual O-rings for superior sealing; designed for FRP RO vessels<\/p>\n<\/li>\n<li data-start=\"429\" data-end=\"535\">\n<p data-start=\"431\" data-end=\"535\"><strong data-start=\"431\" data-end=\"439\">Use:<\/strong> Permanent end closure for 4\u2033 vessel openings; ideal for high-pressure water treatment systems<\/p>\n<\/li>\n<li data-start=\"429\" data-end=\"535\">A <strong data-start=\"160\" data-end=\"175\">4\u2033 end plug<\/strong> for an FRP pressure vessel (like for RO membranes) is designed to fit into a <strong data-start=\"253\" data-end=\"285\">4\u2011inch nominal threaded port<\/strong> \u2014 that means the vessel opening it seals is <strong data-start=\"330\" data-end=\"359\">4\u2033 (10.16\u202fcm) in diameter<\/strong><\/li>\n<li data-start=\"429\" data-end=\"535\">\n<p data-start=\"1227\" data-end=\"1360\"><strong data-start=\"1296\" data-end=\"1324\">FRP housings<\/strong> the O\u2011rings are usually sized with:<\/p>\n<ul data-start=\"1363\" data-end=\"1507\">\n<li data-start=\"1363\" data-end=\"1430\">\n<p data-start=\"1365\" data-end=\"1430\"><strong data-start=\"1365\" data-end=\"1402\">Inner diameter around ~104\u2013110\u202fmm<\/strong> (to match the plug shaft)<\/p>\n<\/li>\n<li data-start=\"1433\" data-end=\"1507\">\n<p data-start=\"1435\" data-end=\"1507\"><strong data-start=\"1435\" data-end=\"1470\">Cross\u2011section thickness ~5\u20137\u202fmm<\/strong> (for good sealing and compression)<\/p>\n<\/li>\n<li data-start=\"1433\" data-end=\"1507\">\n<h3 data-start=\"217\" data-end=\"266\"><strong data-start=\"221\" data-end=\"266\">Typical O-ring Material for FRP End Plugs<\/strong><\/h3>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"268\" data-end=\"804\">\n<thead data-start=\"268\" data-end=\"304\">\n<tr data-start=\"268\" data-end=\"304\">\n<th class=\"\" data-start=\"268\" data-end=\"279\" data-col-size=\"sm\">Material<\/th>\n<th class=\"\" data-start=\"279\" data-end=\"292\" data-col-size=\"md\">Properties<\/th>\n<th class=\"\" data-start=\"292\" data-end=\"304\" data-col-size=\"md\">Use Case<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"340\" data-end=\"804\">\n<tr data-start=\"340\" data-end=\"535\">\n<td data-start=\"340\" data-end=\"386\" data-col-size=\"sm\"><strong data-start=\"342\" data-end=\"385\">EPDM (Ethylene Propylene Diene Monomer)<\/strong><\/td>\n<td data-start=\"386\" data-end=\"468\" data-col-size=\"md\">Flexible, UV-resistant, good for hot\/cold water, chemical resistant to chlorine<\/td>\n<td data-start=\"468\" data-end=\"535\" data-col-size=\"md\">Most common for potable water FRP vessels and membrane housings<\/td>\n<\/tr>\n<tr data-start=\"536\" data-end=\"669\">\n<td data-start=\"536\" data-end=\"565\" data-col-size=\"sm\"><strong data-start=\"538\" data-end=\"564\">NBR (Nitrile \/ Buna-N)<\/strong><\/td>\n<td data-start=\"565\" data-end=\"623\" data-col-size=\"md\">Resistant to oils, good for water, moderate temperature<\/td>\n<td data-start=\"623\" data-end=\"669\" data-col-size=\"md\">Sometimes used in industrial water systems<\/td>\n<\/tr>\n<tr data-start=\"670\" data-end=\"804\">\n<td data-start=\"670\" data-end=\"688\" data-col-size=\"sm\"><strong data-start=\"672\" data-end=\"687\">Viton (FKM)<\/strong><\/td>\n<td data-start=\"688\" data-end=\"731\" data-col-size=\"md\">High chemical and temperature resistance<\/td>\n<td data-start=\"731\" data-end=\"804\" data-col-size=\"md\">Rare for standard potable water; used for harsh chemical applications<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Material: Glass-reinforced polypropylene (PP-GF) Pressure Rating: Up to 10\u202fbar \/ 145\u202fpsi Features: Dual O-rings for superior sealing; designed for FRP RO vessels Use: Permanent end closure for 4\u2033 vessel openings; ideal for high-pressure water treatment systems A 4\u2033 end plug for an FRP pressure vessel (like for RO membranes) is designed to fit into a [&hellip;]<\/p>\n","protected":false},"featured_media":2467,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[243],"product_tag":[242,256,317],"class_list":["post-2468","product","type-product","status-publish","has-post-thumbnail","product_cat-frp-membrane-housings","product_tag-frp-ro-membrane-housing","product_tag-frp-vessels","product_tag-louyenous-ro-housing-end-cap","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/tqwater.co.za\/index.php?rest_route=\/wp\/v2\/product\/2468","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tqwater.co.za\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/tqwater.co.za\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2468"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=\/wp\/v2\/media\/2467"}],"wp:attachment":[{"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2468"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=2468"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=2468"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=2468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}