{"id":19907,"date":"2019-04-26T14:18:53","date_gmt":"2019-04-26T13:18:53","guid":{"rendered":"https:\/\/www.fernco.de\/?post_type=product&#038;p=19907"},"modified":"2025-08-12T15:12:15","modified_gmt":"2025-08-12T14:12:15","slug":"flap-valve","status":"publish","type":"product","link":"https:\/\/www.fernco.de\/en\/product\/flap-valve","title":{"rendered":"Flap Valve FV \/ FVS"},"content":{"rendered":"<p>FV100 FV150 FV200 FV250 FV300 FV350 FV400 FV450 FV500 FV600 FVS100 FVS150 FVS200 FVS250 FVS300 FVS350 FVS400 FVS450 FVS500 FVS600 WMK-01 WMK-02 FV FVS<\/p>\n<p>DN100 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600<\/p>\n<p>HDPE EPDM CNC kunststoff plastic<\/p>\n<p>Froschklappe R\u00fcckfluss r\u00fcckstau Kanalisation Abwassersysteme R\u00fcckstauventil Klappenventil<br \/>\nFlap valve frog backflow sewage sewerage systens backwater<br \/>\nClapet de grenouille Reflux refoulement canalisation sewage Syst\u00e8mes d&#8217;\u00e9vacuation des eaux us\u00e9es Clapet sans entretien<br \/>\nZaw\u00f3r \u017cabkowy Zaw\u00f3r zwrotny Systemy kanalizacyjne Zaw\u00f3r zwrotny Zaw\u00f3r klapowy<\/p>\n<p>recyclebar umweltfreundlich korrosionsbest\u00e4ndig corrosion resistant wartungsarm wartungsfrei low maintenance free maintenance-free sans entretien bezobs\u0142ugowy<\/p>\n<p>schwarz black noir czarny<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Fernco HDPE Flap Valves provide a high strength, low cost solution, preventing backflow through drain or sewerage pipes.<\/p>\n<ul>\n<li>Lightweight range of flap valves<\/li>\n<li>Standard range stocked and available for quick delivery<\/li>\n<li>Bespoke valves can be custom built to customer\u2019s requirements<\/li>\n<li>Available \u2013 wall, spigot or flange mounted<\/li>\n<li>Low cracking heads<\/li>\n<li>Easy and quick installation \u2013 no need for grout between frame and wall<\/li>\n<li>Robust and rigid construction<\/li>\n<li>UV stable<\/li>\n<li>Fully recyclable<\/li>\n<li>Materials are corrosion resistant<\/li>\n<li>Little to no maintenance required<\/li>\n<li>Manufactured to DIN 19569-4<\/li>\n<\/ul>\n","protected":false},"featured_media":31585,"template":"","meta":{"_acf_changed":false,"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"product_cat":[242],"product_tag":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Flap Valve FV \/ FVS | Fernco<\/title>\n<meta name=\"description\" content=\"Fernco&#039;s extra light HPDE flap valves provide a high strength, cost effective solution against backflow from drain or sewer pipes.\" \/>\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.fernco.de\/en\/product\/flap-valve\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta 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