{"id":4563,"date":"2018-08-23T18:50:02","date_gmt":"2018-08-23T16:50:02","guid":{"rendered":"https:\/\/steinhardt.de\/products-and-services\/hydroflap-backwater-gates\/"},"modified":"2022-02-01T18:34:04","modified_gmt":"2022-02-01T17:34:04","slug":"hydroflap-backwater-gates","status":"publish","type":"portfolio","link":"https:\/\/steinhardt.de\/en\/products-and-services\/hydroflap-backwater-gates\/","title":{"rendered":"HydroFlap Non-Return Flaps"},"content":{"rendered":"<div id=\"full_slider_1\" class=\"avia-fullwidth-slider main_color avia-shadow   avia-builder-el-0  el_before_av_layout_row  avia-builder-el-first   container_wrap sidebar_right\"><div class=\"avia-slideshow av-jhaudliz-de2cdef4886a4f7a5cf087662d6da854 avia-slideshow-no scaling av_slideshow_full avia-slide-slider av-slideshow-ui av-control-default av-slideshow-manual av-loop-once av-loop-manual-endless av-default-height-applied   avia-slideshow-1\" data-slideshow-options=\"{&quot;animation&quot;:&quot;slide&quot;,&quot;autoplay&quot;:false,&quot;loop_autoplay&quot;:&quot;once&quot;,&quot;interval&quot;:5,&quot;loop_manual&quot;:&quot;manual-endless&quot;,&quot;autoplay_stopper&quot;:false,&quot;noNavigation&quot;:false,&quot;bg_slider&quot;:false,&quot;keep_padding&quot;:false,&quot;hoverpause&quot;:false,&quot;show_slide_delay&quot;:0}\" itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\"><ul class=\"avia-slideshow-inner \" style=\"padding-bottom: 38.167938931298%;\"><li class=\"avia-slideshow-slide av-jhaudliz-de2cdef4886a4f7a5cf087662d6da854__0  av-single-slide slide-1 slide-odd\"><div data-rel=\"slideshow-1\" class=\"avia-slide-wrap \"><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-4564 avia-img-lazy-loading-not-4564\" src=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK.jpg\" width=\"1310\" height=\"500\" title=\"HydroFlap Backwater Gates\" alt=\"HydroFlap Backwater Gates\" itemprop=\"thumbnailUrl\" srcset=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK.jpg 1310w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-300x115.jpg 300w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-768x293.jpg 768w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-1030x393.jpg 1030w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-705x269.jpg 705w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-450x172.jpg 450w\" sizes=\"(max-width: 1310px) 100vw, 1310px\"><\/div><\/li><\/ul><\/div><\/div>\n<div id=\"av-layout-grid-1\" class=\"av-layout-grid-container av-rai838-3b39fffcc9e33e4a1e7e5ebd29211eb6 entry-content-wrapper main_color av-border-top-bottom av-border-cells av-flex-cells  avia-builder-el-1  el_after_av_slideshow_full  avia-builder-el-last  grid-row-not-first  container_wrap sidebar_right\">\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-qgjh7o-fa4c93d27e304ef152526e0ac269e62c\">\n.flex_cell.av-qgjh7o-fa4c93d27e304ef152526e0ac269e62c{\nvertical-align:top;\n}\n.responsive #top #wrap_all .flex_cell.av-qgjh7o-fa4c93d27e304ef152526e0ac269e62c{\npadding:30px 30px 30px 30px !important;\n}\n<\/style>\n<div class=\"flex_cell av-qgjh7o-fa4c93d27e304ef152526e0ac269e62c av-gridrow-cell av_two_third no_margin  avia-builder-el-2  el_before_av_cell_one_third  avia-builder-el-first \"><div class=\"flex_cell_inner\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jhatnlxs-47da831019c7b47516f782a08d718c24\">\n.av_promobox.av-jhatnlxs-47da831019c7b47516f782a08d718c24{\ncolor:#fcfcfc;\nbackground:#009c82;\n}\n<\/style>\n<div class=\"av_promobox av-jhatnlxs-47da831019c7b47516f782a08d718c24 avia-button-no  avia-builder-el-3  el_before_av_hr  avia-builder-el-first \"><div class=\"avia-promocontent\"><h5>HydroFlap&nbsp;Non-Return Flaps<\/h5>\n<p>\n<\/p><\/div><\/div><br>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-nrr944-cd7af41164e06824bb3e64b951820185\">\n#top .hr.hr-invisible.av-nrr944-cd7af41164e06824bb3e64b951820185{\nmargin-top:-50px;\nheight:1px;\n}\n<\/style>\n<div class=\"hr av-nrr944-cd7af41164e06824bb3e64b951820185 hr-invisible  avia-builder-el-4  el_after_av_promobox  el_before_av_textblock \"><span class=\"hr-inner \"><span class=\"hr-inner-style\"><\/span><\/span><\/div><br>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jhato8s8-01efc1a54062b4e833caaf49614fdfe4\">\n#top .av_textblock_section.av-jhato8s8-01efc1a54062b4e833caaf49614fdfe4 .avia_textblock{\ncolor:#939393;\n}\n<\/style>\n<section class=\"av_textblock_section av-jhato8s8-01efc1a54062b4e833caaf49614fdfe4 \" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\"><div class=\"avia_textblock av_inherit_color\" itemprop=\"text\"><h1>Reliable backwater protection&nbsp;for<br>\ncanals and constructions<\/h1>\n<\/div><\/section><br>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-n0fo5w-2e651e1025c476ab1eb3dfe1d51812c5\">\n#top .hr.hr-invisible.av-n0fo5w-2e651e1025c476ab1eb3dfe1d51812c5{\nheight:25px;\n}\n<\/style>\n<div class=\"hr av-n0fo5w-2e651e1025c476ab1eb3dfe1d51812c5 hr-invisible  avia-builder-el-6  el_after_av_textblock  el_before_av_textblock \"><span class=\"hr-inner \"><span class=\"hr-inner-style\"><\/span><\/span><\/div><br>\n<section class=\"av_textblock_section av-jhattuza-5e61efbb11b335d2c71beb662d269ecb \" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\"><div class=\"avia_textblock\" itemprop=\"text\"><h3>The Function<\/h3>\n<p><strong>Stein\u00adhardt<sup>\u00ae<\/sup> HydroFlap Non-Return Flaps<\/strong> allow water to flow in only one direc\u00adtion. They are easy to open and secure when closed due to flex\u00adi\u00adble cov\u00ader bearings.<\/p>\n<ul>\n<li>Fixed by wall flange or DIN flange to Client\u2018s requirement.<\/li>\n<li>Mate\u00adr\u00adi\u00adal: stain\u00adless steel, bear\u00adings brass\/zinc alloy, flex\u00adi\u00adble&nbsp;seal.<\/li>\n<\/ul>\n<h3>Suitable for Flood Protection<\/h3>\n<p><strong>Stein\u00adhardt<sup>\u00ae<\/sup> HydroFlap Non-Return Flaps<\/strong> pro\u00adtect against dis\u00adcharg\u00ading into flood\u00adwa\u00adter. Unwant\u00aded flood\u00ading of the sew\u00ader net\u00adwork becomes a thing of the past.<span class=\"Apple-converted-space\">&nbsp;<\/span><\/p>\n<p>The <strong>HydroFlap Non-Return Flaps<\/strong> are manufactured<br>\nfrom stain\u00adless steel and oper\u00adate reli\u00adably even after long peri\u00adods of inac\u00adtion. They con\u00adsist of a frame fixed to a con\u00adcrete wall, durable bear\u00adings and a robust flap (please indi\u00adcate max\u00adi\u00admum h\/UW). Option\u00adal counter-weights can be designed to lessen resistance.<\/p>\n<h3>Areas of Application<\/h3>\n<ul>\n<li>sew\u00ader systems<\/li>\n<li>tank and stormwa\u00adter overflows<\/li>\n<li>sew\u00ader overflows<\/li>\n<li>receiv\u00ading water outlets<\/li>\n<li>pump sta\u00adtions<\/li>\n<li>flush\u00ading&nbsp;sumps<\/li>\n<li>ponds<\/li>\n<\/ul>\n<h3>The Advantages of &nbsp;HydroFlap Non-Return Flaps<br>\nDN 200 up to 1200&nbsp;mm<\/h3>\n<ul>\n<li>stain\u00adless-steel construction<\/li>\n<li>mate\u00adr\u00adi\u00adal 1.4301 (V2A)<\/li>\n<li>1.4571 (V4A) on request<\/li>\n<li>flange with con\u00adnect\u00ading dimen\u00adsions acc. to DIN&nbsp;2501<\/li>\n<li>flex\u00adi\u00adble cov\u00ader bear\u00adings ensure easy open\u00ading and secure closing<\/li>\n<li>robust con\u00adstruc\u00adtion<\/li>\n<li>easy mount\u00ading<\/li>\n<li>com\u00adplete with seal\u00ading mate\u00adr\u00adi\u00adal and stain\u00adless-steel fixings<\/li>\n<\/ul>\n<h4><\/h4>\n<\/div><\/section><br>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-ldjh04-e0157d3fd66110cabbf3b380cdb3c470\">\n#top .hr.hr-invisible.av-ldjh04-e0157d3fd66110cabbf3b380cdb3c470{\nheight:10px;\n}\n<\/style>\n<div class=\"hr av-ldjh04-e0157d3fd66110cabbf3b380cdb3c470 hr-invisible  avia-builder-el-8  el_after_av_textblock  avia-builder-el-last \"><span class=\"hr-inner \"><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-ijahkk-c943352496f2ea8192f2f3ff2fd5e54b\">\n.flex_cell.av-ijahkk-c943352496f2ea8192f2f3ff2fd5e54b{\nvertical-align:top;\nbackground-color:#e8e8e8;\n}\n.responsive #top #wrap_all .flex_cell.av-ijahkk-c943352496f2ea8192f2f3ff2fd5e54b{\npadding:30px 30px 30px 30px !important;\n}\n<\/style>\n<div class=\"flex_cell av-ijahkk-c943352496f2ea8192f2f3ff2fd5e54b av-gridrow-cell av_one_third no_margin  avia-builder-el-9  el_after_av_cell_two_third  avia-builder-el-last \"><div class=\"flex_cell_inner\"><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-hj5h5g-c62579122d718ecd378b246f6d550f62\">\n#top .hr.hr-invisible.av-hj5h5g-c62579122d718ecd378b246f6d550f62{\nheight:10px;\n}\n<\/style>\n<\/p><div class=\"hr av-hj5h5g-c62579122d718ecd378b246f6d550f62 hr-invisible  avia-builder-el-10  el_before_av_image  avia-builder-el-first \"><span class=\"hr-inner \"><span class=\"hr-inner-style\"><\/span><\/span><\/div><br>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jhatn1cx-47bcfff87f4f0ccd3cb15f6914295dc3\">\n.avia-image-container.av-jhatn1cx-47bcfff87f4f0ccd3cb15f6914295dc3 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-jhatn1cx-47bcfff87f4f0ccd3cb15f6914295dc3 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div class=\"avia-image-container av-jhatn1cx-47bcfff87f4f0ccd3cb15f6914295dc3 av-styling- avia-align-left  avia-builder-el-11  el_after_av_hr  el_before_av_hr \" itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\"><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-2388 avia-img-lazy-loading-not-2388 avia_image \" src=\"https:\/\/steinhardt.de\/wp-content\/uploads\/2017\/08\/Steinhardt-HydroFlap-300x73.png\" alt=\"Steinhardt HydroFlap\" title=\"Steinhardt HydroFlap\" height=\"73\" width=\"300\" itemprop=\"thumbnailUrl\" srcset=\"https:\/\/steinhardt.de\/wp-content\/uploads\/2017\/08\/Steinhardt-HydroFlap-300x73.png 300w, https:\/\/steinhardt.de\/wp-content\/uploads\/2017\/08\/Steinhardt-HydroFlap-1030x250.png 1030w, https:\/\/steinhardt.de\/wp-content\/uploads\/2017\/08\/Steinhardt-HydroFlap-768x187.png 768w, https:\/\/steinhardt.de\/wp-content\/uploads\/2017\/08\/Steinhardt-HydroFlap-705x171.png 705w, https:\/\/steinhardt.de\/wp-content\/uploads\/2017\/08\/Steinhardt-HydroFlap.png 1165w\" sizes=\"(max-width: 300px) 100vw, 300px\"><\/div><\/div><\/div><br>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-fevmuc-dcd7993e02ca0a2c3dc6fe57881845d5\">\n#top .hr.av-fevmuc-dcd7993e02ca0a2c3dc6fe57881845d5{\nmargin-top:10px;\nmargin-bottom:10px;\n}\n.hr.av-fevmuc-dcd7993e02ca0a2c3dc6fe57881845d5 .hr-inner{\nwidth:100%;\nborder-color:#b7b7b7;\n}\n<\/style>\n<div class=\"hr av-fevmuc-dcd7993e02ca0a2c3dc6fe57881845d5 hr-custom  avia-builder-el-12  el_after_av_image  el_before_av_gallery  hr-center hr-icon-no\"><span class=\"hr-inner inner-border-av-border-thin\"><span class=\"hr-inner-style\"><\/span><\/span><\/div><br>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jhaufhdt-c5633c2f3cd0437c234e7121b4be4794\">\n#top .avia-gallery.av-jhaufhdt-c5633c2f3cd0437c234e7121b4be4794 .avia-gallery-thumb a{\nwidth:50%;\n}\n<\/style>\n<div class=\"avia-gallery av-jhaufhdt-c5633c2f3cd0437c234e7121b4be4794 avia_animate_when_visible  avia-builder-el-13  el_after_av_hr  el_before_av_hr  deactivate_avia_lazyload avia-gallery-animate avia-gallery-1\" itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\"><meta itemprop=\"contentURL\" content=\"https:\/\/steinhardt.de\/en\/products-and-services\/hydroflap-backwater-gates\/\"><div class=\"avia-gallery-thumb\"><a href=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-offen-mit-Dichtung.jpg\" data-srcset=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-offen-mit-Dichtung.jpg 824w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-offen-mit-Dichtung-300x280.jpg 300w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-offen-mit-Dichtung-768x716.jpg 768w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-offen-mit-Dichtung-705x657.jpg 705w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-offen-mit-Dichtung-450x419.jpg 450w\" data-sizes=\"(max-width: 824px) 100vw, 824px\" data-rel=\"gallery-1\" data-prev-img=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-offen-mit-Dichtung-495x400.jpg\" class=\"first_thumb lightbox \" data-onclick=\"1\" title=\"HydroFlap Non-Return Flap with gasket kit\" itemprop=\"thumbnailUrl\"><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-4572 avia-img-lazy-loading-not-4572\" src=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-offen-mit-Dichtung-180x180.jpg\" width=\"180\" height=\"180\" title=\"HydroFlap Non-Return Flap with gasket kit\" alt=\"HydroFlap with gasket kit\" srcset=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-offen-mit-Dichtung-180x180.jpg 180w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-offen-mit-Dichtung-80x80.jpg 80w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-offen-mit-Dichtung-36x36.jpg 36w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-offen-mit-Dichtung-120x120.jpg 120w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-offen-mit-Dichtung-450x450.jpg 450w\" sizes=\"(max-width: 180px) 100vw, 180px\"><div class=\"big-prev-fake\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-4572 avia-img-lazy-loading-4572\" width=\"495\" height=\"400\" src=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-offen-mit-Dichtung-495x400.jpg\" title=\"HydroFlap Non-Return Flap with gasket kit\" alt=\"HydroFlap with gasket kit\"><\/div><\/a><a href=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-Rueckstauklappe-eckig.jpg\" data-srcset=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-Rueckstauklappe-eckig.jpg 700w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-Rueckstauklappe-eckig-300x266.jpg 300w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-Rueckstauklappe-eckig-450x399.jpg 450w\" data-sizes=\"(max-width: 700px) 100vw, 700px\" data-rel=\"gallery-1\" data-prev-img=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-Rueckstauklappe-eckig-495x400.jpg\" class=\"lightbox \" data-onclick=\"2\" title=\"HydroFlap Non-Return Flap square\" itemprop=\"thumbnailUrl\"><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-4574 avia-img-lazy-loading-not-4574\" src=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-Rueckstauklappe-eckig-180x180.jpg\" width=\"180\" height=\"180\" title=\"HydroFlap Non-Return Flap square\" alt=\"HydroFlap Non-Return Flap square\" srcset=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-Rueckstauklappe-eckig-180x180.jpg 180w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-Rueckstauklappe-eckig-80x80.jpg 80w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-Rueckstauklappe-eckig-36x36.jpg 36w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-Rueckstauklappe-eckig-120x120.jpg 120w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-Rueckstauklappe-eckig-450x450.jpg 450w\" sizes=\"(max-width: 180px) 100vw, 180px\"><div class=\"big-prev-fake\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-4574 avia-img-lazy-loading-4574\" width=\"495\" height=\"400\" src=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK-Rueckstauklappe-eckig-495x400.jpg\" title=\"HydroFlap Non-Return Flap square\" alt=\"HydroFlap Non-Return Flap square\"><\/div><\/a><a href=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK500-verst\u00e4rkt.jpg\" data-srcset=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK500-verst\u00e4rkt.jpg 576w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK500-verst\u00e4rkt-300x289.jpg 300w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK500-verst\u00e4rkt-36x36.jpg 36w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK500-verst\u00e4rkt-450x433.jpg 450w\" data-sizes=\"(max-width: 576px) 100vw, 576px\" data-rel=\"gallery-1\" data-prev-img=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK500-verst\u00e4rkt-495x400.jpg\" class=\"first_thumb lightbox \" data-onclick=\"3\" title=\"HydroFlap Non-Return Flap 500, reinforced\" itemprop=\"thumbnailUrl\"><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-4568 avia-img-lazy-loading-not-4568\" src=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK500-verst\u00e4rkt-180x180.jpg\" width=\"180\" height=\"180\" title=\"HydroFlap Non-Return Flap 500, reinforced\" alt=\"HydroFlap Non-Return Flap 500, reinforced\" srcset=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK500-verst\u00e4rkt-180x180.jpg 180w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK500-verst\u00e4rkt-80x80.jpg 80w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK500-verst\u00e4rkt-36x36.jpg 36w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK500-verst\u00e4rkt-120x120.jpg 120w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK500-verst\u00e4rkt-450x450.jpg 450w\" sizes=\"(max-width: 180px) 100vw, 180px\"><div class=\"big-prev-fake\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-4568 avia-img-lazy-loading-4568\" width=\"495\" height=\"400\" src=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-RSK500-verst\u00e4rkt-495x400.jpg\" title=\"HydroFlap Non-Return Flap 500, reinforced\" alt=\"HydroFlap Non-Return Flap 500, reinforced\"><\/div><\/a><a href=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-R\u00fcckstauklappe-klein.jpg\" data-srcset=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-R\u00fcckstauklappe-klein.jpg 642w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-R\u00fcckstauklappe-klein-251x300.jpg 251w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-R\u00fcckstauklappe-klein-591x705.jpg 591w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-R\u00fcckstauklappe-klein-450x537.jpg 450w\" data-sizes=\"(max-width: 642px) 100vw, 642px\" data-rel=\"gallery-1\" data-prev-img=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-R\u00fcckstauklappe-klein-495x400.jpg\" class=\"lightbox \" data-onclick=\"4\" title=\"HydroFlap Non-Return Gate\" itemprop=\"thumbnailUrl\"><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-4566 avia-img-lazy-loading-not-4566\" src=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-R\u00fcckstauklappe-klein-180x180.jpg\" width=\"180\" height=\"180\" title=\"HydroFlap Non-Return Gate\" alt=\"HydroFlap Non-Return Flap\" srcset=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-R\u00fcckstauklappe-klein-180x180.jpg 180w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-R\u00fcckstauklappe-klein-80x80.jpg 80w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-R\u00fcckstauklappe-klein-36x36.jpg 36w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-R\u00fcckstauklappe-klein-120x120.jpg 120w, https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-R\u00fcckstauklappe-klein-450x450.jpg 450w\" sizes=\"(max-width: 180px) 100vw, 180px\"><div class=\"big-prev-fake\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-4566 avia-img-lazy-loading-4566\" width=\"495\" height=\"400\" src=\"https:\/\/steinhardt.de\/wp-content\/uploads\/HydroFlap-R\u00fcckstauklappe-klein-495x400.jpg\" title=\"HydroFlap Non-Return Gate\" alt=\"HydroFlap Non-Return Flap\"><\/div><\/a><\/div><\/div><br>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-drixjo-3325b3dec034e1df00272255b7c3ce51\">\n#top 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av-overlay-on-hover\" itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\"><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><a href=\"https:\/\/steinhardt.de\/wp-content\/uploads\/Flyer-HydroFlap-Non-Return-Flaps-GB.pdf\" class=\"avia_image\" target=\"_blank\" rel=\"noopener noreferrer\" aria-label=\"Title Flyer HydroFlap Non-return-Flaps\"><div class=\"av-image-caption-overlay\"><div class=\"av-caption-image-overlay-bg\"><\/div><div class=\"av-image-caption-overlay-position\"><div class=\"av-image-caption-overlay-center\"><p>PDF<br>\nFly\u00ader HydroFlap<br>\nNon-Return Flaps<\/p>\n<\/div><\/div><\/div><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-5095 avia-img-lazy-loading-not-5095 avia_image \" src=\"https:\/\/steinhardt.de\/wp-content\/uploads\/Title-Flyer-HydroFlap-Non-return-Flaps-212x300.jpg\" alt title=\"Title Flyer HydroFlap Non-return-Flaps\" height=\"300\" width=\"212\" 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href=\"https:\/\/steinhardt.de\/en\/products-and-services\/shutoff-devices-backwater-valves\/\" class=\"avia-button avia-button-fullwidth av-jhaun9aq-b88d6a2dc69dcc1102ff1bc676fb871f avia-icon_select-no avia-color-custom\"><span class=\"avia_iconbox_title\">Stein\u00adhardt Shut\u00adoff Devices &amp; Back\u00adwa\u00adter Valves<\/span><\/a><\/div>\n<\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Reli\u00adable back\u00adwa\u00adter pro\u00adtec\u00adtion&nbsp;for canals and constructions<\/p>\n","protected":false},"featured_media":4564,"comment_status":"closed","ping_status":"closed","template":"","tags":[],"portfolio_entries":[84],"class_list":["post-4563","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","portfolio_entries-shutoff-devices-and-backwater-valves"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>HydroFlap Non-Return Flaps &#8211; 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