{"id":19806,"date":"2026-09-21T10:33:19","date_gmt":"2026-09-21T10:33:19","guid":{"rendered":"https:\/\/ekc.gr\/?post_type=product&#038;p=19806"},"modified":"2026-09-21T11:20:37","modified_gmt":"2026-09-21T11:20:37","slug":"mwstop-check-valve","status":"publish","type":"product","link":"https:\/\/ekc.gr\/en\/product\/mwstop-check-valve\/","title":{"rendered":"MwStop\u00ae CHECK VALVE"},"content":{"rendered":"<div class=\"uk-section-muted uk-section uk-section-xsmall\">\n<div class=\"uk-container\">\n<div class=\"uk-grid tm-grid-expand uk-child-width-1-1 uk-grid-margin\">\n<div class=\"uk-width-1-1\">\n<div class=\"uk-panel uk-margin\">\n<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\">\n<div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\">\n<div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_1 1_1 fusion-flex-column\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\">\n<div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\">\n<div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-six\">\n<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\">\n<div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\">\n<div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_2 1_2 fusion-flex-column\">\n<div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-row\">\n<div class=\"fusion-title title fusion-title-3 fusion-sep-none fusion-title-text fusion-title-size-two\">\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-19823\" src=\"https:\/\/ekc.gr\/wp-content\/uploads\/2026\/09\/\u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae.jpg\" alt=\"\" width=\"1806\" height=\"765\" \/><\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-19825\" src=\"https:\/\/ekc.gr\/wp-content\/uploads\/2026\/09\/\u0395\u0395.jpg\" alt=\"\" width=\"1641\" height=\"440\" \/><\/p>\n<div class=\"fusion-title title fusion-title-8 fusion-sep-none fusion-title-text fusion-title-size-three\">\n<h3 class=\"fusion-title-heading title-heading-left\">FIELD OF APPLICATION<\/h3>\n<\/div>\n<div class=\"fusion-text fusion-text-4\">\n<p>MwStop\u00ae check valves effectively protect against backwater, flooding and additionally against odour nuisance.<\/p>\n<\/div>\n<div class=\"fusion-text fusion-text-5\">\n<ul class=\"custom-list\">\n<li>Main collector<\/li>\n<li>Sewer pipes<\/li>\n<li>Storm water pipes<\/li>\n<li>Clarification basins<\/li>\n<\/ul>\n<\/div>\n<div class=\"fusion-title title fusion-title-9 fusion-sep-none fusion-title-text fusion-title-size-three\">\n<h3 class=\"fusion-title-heading title-heading-left\">DIMENSIONS UP TO DN2000<\/h3>\n<\/div>\n<div class=\"fusion-video fusion-youtube\">\n<div class=\"video-shortcode\">\n<div class=\"fluid-width-video-wrapper\">\n<div class=\"brlbs-cmpnt-container brlbs-cmpnt-content-blocker brlbs-cmpnt-with-individual-styles\" data-borlabs-cookie-content-blocker-id=\"default\" data-borlabs-cookie-content=\"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\">\n<div class=\"brlbs-cmpnt-cb-preset-a\">\n<p class=\"brlbs-cmpnt-cb-description\">You are currently viewing a placeholder content from <strong>Default<\/strong>. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"fusion-title title fusion-title-10 fusion-sep-none fusion-title-text fusion-title-size-two\">\n<h2 class=\"fusion-title-heading title-heading-left\">FUNCTIONING of the MwStop\u00ae check valve<\/h2>\n<\/div>\n<div class=\"fusion-text fusion-text-6\">\n<p>As soon as water flows in the direction of flow through the pipe to be secured, the MwStop\u00ae check valve is subjected to increasing pressure. This pushes the diaphragm upwards so that the water can flow freely below the valve. The rising water pressure triggers a controlled surge flushing, which consequently ensures the regular removal of existing sediments. On the other hand, the tight seal reliably prevents unpleasant odours in the pipe network. As soon as water flows against the direction of flow through the pipe to be secured, the MwStop\u00ae check valve fills up and consequently effectively prevents the water from backing up. The backwater height varies depending on the MwStop\u00ae model (maximum 8,000mm).<\/p>\n<\/div>\n<p><img decoding=\"async\" class=\" wp-image-19819 alignleft\" src=\"https:\/\/ekc.gr\/wp-content\/uploads\/2026\/09\/MwStop-Flowdirection.webp\" alt=\"\" width=\"501\" height=\"501\" \/><\/p>\n<\/div>\n<\/div>\n<div class=\"fusion-title title fusion-title-11 fusion-sep-none fusion-title-text fusion-title-size-three\">\n<h3 class=\"fusion-title-heading title-heading-left\">One MwStop\u00ae \u2013 3 FUNCTIONS<\/h3>\n<\/div>\n<div class=\"fusion-text fusion-text-7\">\n<ul class=\"custom-list\">\n<li>Backflow prevention<\/li>\n<li>Odour control<\/li>\n<li>Surge flushing<\/li>\n<\/ul>\n<\/div>\n<div class=\"fusion-title title fusion-title-12 fusion-sep-none fusion-title-text fusion-title-size-three\">\n<h3 class=\"fusion-title-heading title-heading-left\">One MwStop\u00ae \u2013 MANY ADVANTAGES<\/h3>\n<\/div>\n<div class=\"fusion-text fusion-text-8\">\n<ul class=\"custom-list\">\n<li>extremely low pressure drop<\/li>\n<li>without moving parts<\/li>\n<li>for all pipe materials and sizes<\/li>\n<li>very simple installation<\/li>\n<li>long service life<\/li>\n<\/ul>\n<\/div>\n<div class=\"fusion-title title fusion-title-13 fusion-sep-none fusion-title-text fusion-title-size-three\">\n<h3 class=\"fusion-title-heading title-heading-left\">LONG SERVICE LIFE<\/h3>\n<\/div>\n<div class=\"fusion-text fusion-text-9\">\n<p>The design, which has been reduced to an optimum, and the use of high quality materials of the MwStop\u00ae check valve are designed to convince with a long service life. In addition, the MwStop\u00ae check valves are an effective add-on for every object.<\/p>\n<\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<div class=\"fusion-title title fusion-title-14 fusion-sep-none fusion-title-text fusion-title-size-three\">\n<h3 class=\"fusion-title-heading title-heading-left\">INSTALLATION<\/h3>\n<\/div>\n<div class=\"fusion-text fusion-text-10\">\n<p>MwStop\u00ae can be installed in practically any pipe, by the way, even retrofitted, in just a few minutes. Therefore, the backwater valve immediately provides effective protection against floods, foreign bodies and annoying odours. The wide range of MwStop\u00ae check<img loading=\"lazy\" decoding=\"async\" class=\" wp-image-19827 alignright\" src=\"https:\/\/ekc.gr\/wp-content\/uploads\/2026\/09\/\u03a6\u03a1\u0393\u03a1.jpg\" alt=\"\" width=\"517\" height=\"506\" \/> valves ensures that the right MwStop\u00ae model is available for every application. Areas of application include, for example, backwater protection of the sewage system, use in rainwater pipes or, for example, to prevent the formation of odours in combined sewers.<\/p>\n<\/div>\n<div class=\"fusion-text fusion-text-11\">\n<p>MwStop\u00ae valves can be installed in a wide variety of ways in any position. Full functionality is provided from horizontal to vertical.<\/p>\n<\/div>\n<div class=\"fusion-title title fusion-title-15 fusion-sep-none fusion-title-text fusion-title-size-three\">\n<h3 class=\"fusion-title-heading title-heading-left\">BACKWATER HEIGHTS<\/h3>\n<\/div>\n<div class=\"fusion-text fusion-text-12\">\n<p>MAXIMUM BACKWATER PROTECTION<\/p>\n<ul>\n<li>The standard MwStop\u00ae models provide backflow protection up to a height of 5,000mm water column.<\/li>\n<li>The soft versions of the MwStop\u00ae check valve offer backwater protection up to a height of 3,000mm water column.<\/li>\n<li>Special designs up to 8,000mm backflow protection are available on request.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"fusion-title title fusion-title-16 fusion-sep-none fusion-title-text fusion-title-size-three\">\n<h3 class=\"fusion-title-heading title-heading-left\">TYPES<\/h3>\n<\/div>\n<div class=\"fusion-text fusion-text-13\">\n<p>DIFFERENT MwStop\u00ae SIZES FOR ALL CURRENT INSIDE PIPE DIAMETERS.<img loading=\"lazy\" decoding=\"async\" class=\" wp-image-19850 alignright\" src=\"https:\/\/ekc.gr\/wp-content\/uploads\/2026\/09\/\u03b7\u03b7.jpg\" alt=\"\" width=\"593\" height=\"556\" \/><\/p>\n<p>The MwStop\u00ae check valves are available as standard up to DN2000 and are thus available for practically all common internal pipe diameters and pipe materials. We are happy to supply special sizes on request!<\/p>\n<\/div>\n<div class=\"fusion-title title fusion-title-17 fusion-sep-none fusion-title-text fusion-title-size-three\">\n<h3 class=\"fusion-title-heading title-heading-left\">MwStop\u00ae STANDARD<\/h3>\n<\/div>\n<div class=\"fusion-text fusion-text-14\">\n<p>FOR SLOPES \u22652%<\/p>\n<p>In order to ensure the full functionality of the standard version of the MwStop\u00ae check valves, a slope of at least 2% is required. In order to be able to open specifically, a certain water pressure is required on the MwStop\u00ae diaphragm. This minimum pressure also ensures that controlled surge flushing is triggered when the diaphragm is opened.<\/p>\n<\/div>\n<div class=\"fusion-title title fusion-title-18 fusion-sep-none fusion-title-text fusion-title-size-three\">\n<h3 class=\"fusion-title-heading title-heading-left\">MwStop\u00ae SOFT<\/h3>\n<\/div>\n<div class=\"fusion-text fusion-text-15\">\n<p>FOR LOW SLOPES<\/p>\n<p>A product version with softer membrane material is used for installation with a gradient of less than 2% (min. 1%). It ensures that the MwStop\u00ae opens reliably even in these cases and provides for the safe removal of the wastewater that accumulates, including any deposits.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"fusion-title title fusion-title-23 fusion-sep-none fusion-title-text fusion-title-size-two\">\n<h2 class=\"fusion-title-heading title-heading-left\">MATERIALS<\/h2>\n<\/div>\n<div class=\"fusion-text fusion-text-20\">\n<p>HOUSING<\/p>\n<p>The MwStop\u00ae housing is made of EN 1.4404\/AISI 316L stainless steel as standard. For sizes up to DN200, for installation as part of a pipe, a PVC\/PE variant of the housing can be used as an alternative.<\/p>\n<\/div>\n<div class=\"fusion-text fusion-text-21 fusion-text-no-margin\">\n<p>MEMBRANE<\/p>\n<p>The MwStop\u00ae diaphragm is manufactured in EPDM up to DN2000. The diaphragm is available in two different versions (standard and soft)<\/p>\n<\/div>\n<\/div>\n<div class=\"fusion-title title fusion-title-24 fusion-sep-none fusion-title-text fusion-title-size-two\">\n<h2 class=\"fusion-title-heading title-heading-left\">MwStop\u00ae check valve \u2013 APPLICATIONS<\/h2>\n<\/div>\n<div class=\"fusion-text fusion-text-22\">\n<p>There are numerous causes for backwater in rainwater or sewage pipes. For example, heavy rain or pipe blockages. But both an operational failure in the pumping station and other overloading of the sewage system can become a problem. Another application example is the backwater from water bodies caused by floods. The large quantities of water that suddenly occur can quickly exceed the capacity of the sewage system.<\/p>\n<p>The MwStop\u00ae check valve protects against backwater, water ingress and foreign bodies in buildings, sewage and rainwater pipes. In addition, the check valve is an effective protection against odour nuisance from the sewer system.<\/p>\n<\/div>\n<div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\">\n<div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-six\">\n<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\">\n<div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\">\n<div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_2 1_2 fusion-flex-column\">\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-19815\" src=\"https:\/\/ekc.gr\/wp-content\/uploads\/2026\/09\/LaengsschnittEn-scaled-1.webp\" alt=\"\" width=\"1920\" height=\"697\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-19813\" src=\"https:\/\/ekc.gr\/wp-content\/uploads\/2026\/09\/Laengsschnitten2-scaled-1.webp\" alt=\"\" width=\"1920\" height=\"697\" \/><\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-9 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\">\n<div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\">\n<div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-17 fusion_builder_column_1_3 1_3 fusion-flex-column\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\">\n<div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\">\n<div class=\"responsive-iframe-container\">\n<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\">\n<div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\">\n<div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion_builder_column_1_4 1_4 fusion-flex-column fusion-flex-align-self-stretch\">\n<div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\">\n<div class=\"fusion-title title fusion-title-3 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-three box-headings\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>FIELD OF APPLICATION MwStop\u00ae check valves effectively protect against backwater, flooding and additionally against odour nuisance. Main collector Sewer pipes Storm water pipes Clarification basins DIMENSIONS UP TO DN2000 You are currently viewing a placeholder content from Default. To access the actual content, click the button below. Please note that doing so will share data [&hellip;]<\/p>\n","protected":false},"featured_media":19821,"template":"","meta":[],"product_cat":[586],"product_tag":[861,675,683,722,841,674,687,678,681,684,676,701,842,668,669,843,844,673,672,862,860,682,680,679,723,689,690,769,693,694,699,692,697,691,770,700,771,772,773,290,464,753,735,750,746,748,745,742,749,752,740,747,744,734,741,733,751,743,739,738,762,764,763,766,765,761,767,757,754,756,758,755,759,760,768],"class_list":["post-19806","product","type-product","status-publish","has-post-thumbnail","product_brand--messtechnik","product_cat-non-return-valves-en","product_tag-check-valve","product_tag-detact","product_tag-detection-of-leaks-in-heating-pipes","product_tag-detector","product_tag-iqm","product_tag-leak","product_tag-leak-control-systems","product_tag-leak-detection","product_tag-leak-detection-in-buildings","product_tag-leak-detection-in-fire-fighting","product_tag-leak-investigation","product_tag-leaktech","product_tag-monitoring","product_tag-mta","product_tag-mta-home-scan","product_tag-mta-iqm","product_tag-mta-monitoring","product_tag-mta-pool-scan","product_tag-mta-roof-scan","product_tag-mwstop-en","product_tag-mwstop-check-valve","product_tag-pipe-leak-detection","product_tag-pool-leak-detection","product_tag-roof-leak-detection","product_tag-water","product_tag-689","product_tag-690","product_tag-769","product_tag-693","product_tag-694","product_tag-699","product_tag-692","product_tag-697","product_tag-691","product_tag-770","product_tag-700","product_tag-771","product_tag-772","product_tag-773","product_tag-290","product_tag-464","product_tag-753","product_tag---en","product_tag-750","product_tag-746","product_tag-748","product_tag-745","product_tag-742","product_tag-749","product_tag-752","product_tag-740","product_tag-747","product_tag-744","product_tag-734","product_tag-741","product_tag-733","product_tag-751","product_tag-743","product_tag-739","product_tag-738","product_tag-762","product_tag-764","product_tag-763","product_tag-766","product_tag-765","product_tag-761","product_tag-767","product_tag-757","product_tag-754","product_tag-756","product_tag-758","product_tag-755","product_tag-759","product_tag-760","product_tag-768","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/ekc.gr\/en\/wp-json\/wp\/v2\/product\/19806","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ekc.gr\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ekc.gr\/en\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":4,"href":"https:\/\/ekc.gr\/en\/wp-json\/wp\/v2\/product\/19806\/revisions"}],"predecessor-version":[{"id":19862,"href":"https:\/\/ekc.gr\/en\/wp-json\/wp\/v2\/product\/19806\/revisions\/19862"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ekc.gr\/en\/wp-json\/wp\/v2\/media\/19821"}],"wp:attachment":[{"href":"https:\/\/ekc.gr\/en\/wp-json\/wp\/v2\/media?parent=19806"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ekc.gr\/en\/wp-json\/wp\/v2\/product_cat?post=19806"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ekc.gr\/en\/wp-json\/wp\/v2\/product_tag?post=19806"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}