{"id":6500,"date":"2025-11-20T09:59:34","date_gmt":"2025-11-20T09:59:34","guid":{"rendered":"https:\/\/poolparthub.com\/?post_type=product&#038;p=6500"},"modified":"2026-04-13T19:11:02","modified_gmt":"2026-04-13T19:11:02","slug":"microdos-injection-check-valve-1-2-4x6-mm-with-gasket-11100450","status":"publish","type":"product","link":"https:\/\/www.poolparthub.com\/nl\/product\/microdos-injection-check-valve-1-2-4x6-mm-with-gasket-11100450\/","title":{"rendered":"Microdos Injection Check Valve 1\/2\u201d 4&#215;6 mm with Gasket \u2013 11.100.450"},"content":{"rendered":"<h2>Microdos injection check valve 1\/2\u201d 4&#215;6 mm with gasket \u2013 11.100.450<\/h2>\n<p>Ensure safe, precise chemical dosing with this original Microdos injection check valve. It connects a 4&#215;6 mm dosing line to a 1\/2\u201d injection point and uses a built-in non-return mechanism to prevent backflow, pipe drain-down and unwanted mixing in the return line.<\/p>\n<ul>\n<li>1\/2\u201d male injection valve with integrated non-return<\/li>\n<li>4&#215;6 mm hose connection for standard dosing lines<\/li>\n<li>Includes flat sealing gasket for leak-tight installation<\/li>\n<\/ul>\n<h3>Compatibility<\/h3>\n<p>Designed for Microdos dosing systems and many pH\/ORP (redox) or chlorine controllers that use 4&#215;6 mm tubing. Commonly paired with Micro pH, Micro Rx, Micro UP and ME\/MP series units. Also suitable as a universal replacement on installations with a 1\/2\u201d female injection port.<\/p>\n<h3>What\u2019s included<\/h3>\n<ul>\n<li>Injection check valve 1\/2\u201d \u00d7 4&#215;6 mm (ref. 11.100.450)<\/li>\n<li>Sealing gasket for 1\/2\u201d port<\/li>\n<\/ul>\n<h3>Installation tips<\/h3>\n<ul>\n<li>Fit into a 1\/2\u201d female boss (e.g., on a saddle clamp or tee) at the designated injection point on the return line.<\/li>\n<li>Tighten by hand, then a quarter-turn with a suitable wrench; do not overtighten.<\/li>\n<li>Prime the dosing line and check for leaks; rinse the valve with fresh water after seasonal shutdowns.<\/li>\n<\/ul>\n<h3>Specifications<\/h3>\n<ul>\n<li>Reference: 11.100.450<\/li>\n<li>Function: Injection check (non-return) valve<\/li>\n<li>Thread side: 1\/2\u201d male (injection point)<\/li>\n<li>Tubing side: 4&#215;6 mm hose connection<\/li>\n<li>Seal: Flat gasket included<\/li>\n<li>Use: pH, ORP\/chlorine dosing lines<\/li>\n<li>Replaces: 11.100.088 (where applicable)<\/li>\n<li>EAN: 8432611939134<\/li>\n<\/ul>\n<h3>Good to know<\/h3>\n<p>Regularly inspect the non-return function. If chemical creepage or backflow is observed, clean or replace the valve to maintain accurate dosing and protect upstream equipment.<\/p>","protected":false},"excerpt":{"rendered":"<p>Microdos injection check valve 1\/2\u201d 4&#215;6 mm with gasket \u2013 11.100.450 Ensure safe, precise chemical dosing with this original Microdos injection check valve. It connects a 4&#215;6 mm dosing line to a 1\/2\u201d injection point and uses a built-in non-return mechanism to prevent backflow, pipe drain-down and unwanted mixing in the return line. 1\/2\u201d male<a href=\"https:\/\/www.poolparthub.com\/nl\/product\/microdos-injection-check-valve-1-2-4x6-mm-with-gasket-11100450\/\">Continue reading <span class=\"sr-only\">&#8220;Microdos Injection Check Valve 1\/2\u201d 4&#215;6 mm with Gasket \u2013 11.100.450&#8221;<\/span><\/a><\/p>","protected":false},"featured_media":10757,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"bwfblock_default_font":"","inline_featured_image":false},"product_brand":[39],"product_cat":[36,40],"product_tag":[],"class_list":["post-6500","product","type-product","status-publish","has-post-thumbnail","product_brand-microdos","product_cat-dosing-pumps","product_cat-injectors","first","instock","taxable","shipping-taxable","product-type-simple"],"acf":{"pph_product_template":"spare_part","pph_extra_parts_check":"","pph_spare_parts":null,"pph_extra_spare_parts":null,"extra_product_tabs":null,"main_product_link":null,"restock_info":"","exploded_view_link":"","details_product":null,"details_product_exploded":null,"pph_card_badge_use_custom":false,"pph_card_badge_text":"","pph_card_badge_background_color":"#ADC2F7","pph_card_badge_border_color":"#ADC2F7","pph_card_badge_text_color":"#2B46AB"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.4 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Microdos Injection Check Valve 1\/2\u201d 4x6 mm with Gasket \u2013 11.100.450 | PoolPartHub<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.poolparthub.com\/nl\/product\/microdos-injection-check-valve-1-2-4x6-mm-with-gasket-11100450\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Microdos Injection Check Valve 1\/2\u201d 4x6 mm with Gasket \u2013 11.100.450\" \/>\n<meta property=\"og:description\" content=\"Microdos injection check valve 1\/2\u201d 4&#215;6 mm with gasket \u2013 11.100.450 Ensure safe, precise chemical dosing with this original Microdos injection check valve. It connects a 4&#215;6 mm dosing line to a 1\/2\u201d injection point and uses a built-in non-return mechanism to prevent backflow, pipe drain-down and unwanted mixing in the return line. 1\/2\u201d maleContinue reading &quot;Microdos Injection Check Valve 1\/2\u201d 4&#215;6 mm with Gasket \u2013 11.100.450&quot;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.poolparthub.com\/nl\/product\/microdos-injection-check-valve-1-2-4x6-mm-with-gasket-11100450\/\" \/>\n<meta property=\"og:site_name\" content=\"PoolPartHub\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-13T19:11:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.poolparthub.com\/wp-content\/uploads\/2025\/11\/clapet-injection-raccord-filete-chlore-ph-microdos-11100450.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"990\" \/>\n\t<meta property=\"og:image:height\" content=\"990\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" 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It connects a 4&#215;6 mm dosing line to a 1\/2\u201d injection point and uses a built-in non-return mechanism to prevent backflow, pipe drain-down and unwanted mixing in the return line. 1\/2\u201d maleContinue reading \"Microdos Injection Check Valve 1\/2\u201d 4&#215;6 mm with Gasket \u2013 11.100.450\"","og_url":"https:\/\/www.poolparthub.com\/nl\/product\/microdos-injection-check-valve-1-2-4x6-mm-with-gasket-11100450\/","og_site_name":"PoolPartHub","article_modified_time":"2026-04-13T19:11:02+00:00","og_image":[{"width":990,"height":990,"url":"https:\/\/www.poolparthub.com\/wp-content\/uploads\/2025\/11\/clapet-injection-raccord-filete-chlore-ph-microdos-11100450.webp","type":"image\/webp"}],"twitter_card":"summary_large_image","twitter_misc":{"Geschatte leestijd":"1 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