{"id":1317,"date":"2016-07-11T17:08:37","date_gmt":"2016-07-11T17:08:37","guid":{"rendered":"https:\/\/multiserveisjoannet.es\/valvula-antiretorn-en-vies-fecals-de-barcelona\/"},"modified":"2026-07-23T15:40:44","modified_gmt":"2026-07-23T15:40:44","slug":"valvula-antiretorn-en-vies-fecals-de-barcelona","status":"publish","type":"page","link":"https:\/\/multiserveisjoannet.es\/ca\/valvula-antiretorn-en-vies-fecals-de-barcelona\/","title":{"rendered":"V\u00e0lvula antiretorn en vies fecals de Barcelona"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Instal\u00b7laci\u00f3 de v\u00e0lvula antiretorn en vies fecals<\/h2>\n\n<p class=\"wp-block-paragraph\">Projecte d&#8217;<strong>instal\u00b7laci\u00f3 de v\u00e0lvula antiretorn en vies fecals residuals a Barcelona<\/strong>.<\/p>\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Instalaci\u00f3n de valvula anti retorno en v\u00edas fecales residuales\" width=\"1060\" height=\"596\" src=\"https:\/\/www.youtube.com\/embed\/vKI2tmo37Zc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Instalaci\u00f3n de valvula anti retorno residuales\" width=\"1060\" height=\"596\" src=\"https:\/\/www.youtube.com\/embed\/NEA9rnEhGtU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n<h2 class=\"wp-block-heading\">V\u00e0lvula antiretorn en vies fecals residuals<\/h2>\n\n<p class=\"wp-block-paragraph\">Les v\u00e0lvules antiretorn, tamb\u00e9 anomenades <b>v\u00e0lvules de retenci\u00f3, v\u00e0lvules unidireccionals<\/b> o <b>v\u00e0lvules <i>check<\/i><\/b>, tenen com a objectiu tancar completament el pas del fluid en circulaci\u00f3, tant si \u00e9s gas\u00f3s com l\u00edquid, en un sentit i deixar-lo lliure en el sentit contrari. Tenen l&#8217;avantatge d&#8217;un recorregut m\u00ednim del disc o obturador fins a la posici\u00f3 d&#8217;obertura total. <\/p>\n\n<p class=\"wp-block-paragraph\">S&#8217;utilitzen quan es pret\u00e9n mantenir sota pressi\u00f3 una canonada en servei i posar en desc\u00e0rrega l&#8217;alimentaci\u00f3. El flux del fluid que es dirigeix des de l&#8217;orifici d&#8217;entrada cap al d&#8217;utilitzaci\u00f3 t\u00e9 el pas lliure, mentre que en el sentit oposat queda bloquejat. Tamb\u00e9 se solen anomenar <b>v\u00e0lvules unidireccionals<\/b>.  <\/p>\n\n<p class=\"wp-block-paragraph\">Les v\u00e0lvules antiretorn s&#8217;utilitzen \u00e0mpliament en canonades connectades a sistemes de bombament per evitar cops d&#8217;ariet, principalment a la l\u00ednia de desc\u00e0rrega de la bomba.<\/p>\n\n<h2 class=\"wp-block-heading\">Galeria d&#8217;imatges<\/h2>\n\n<figure class=\"wp-block-gallery columns-3 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona.jpg\" alt=\"V&#xE0;lvula antiretorn per a aig&#xFC;es fecals a Barcelona\" data-id=\"352\" class=\"wp-image-352\" srcset=\"https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona.jpg 1024w, https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona-300x225.jpg 300w, https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona-768x576.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img decoding=\"async\" width=\"576\" height=\"1024\" src=\"https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona-2.jpg\" alt=\"Instal&#xB7;laci&#xF3; de v&#xE0;lvula per a aig&#xFC;es fecals a Barcelona\" data-id=\"353\" class=\"wp-image-353\" srcset=\"https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona-2.jpg 576w, https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona-2-169x300.jpg 169w, https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona-2-768x1364.jpg 768w\" sizes=\"(max-width: 576px) 100vw, 576px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona3.jpg\" alt=\"Instal&#xB7;laci&#xF3; de v&#xE0;lvula antiretorn a Barcelona\" data-id=\"354\" class=\"wp-image-354\" srcset=\"https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona3.jpg 1024w, https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona3-300x169.jpg 300w, https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona3-768x432.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img decoding=\"async\" width=\"576\" height=\"1024\" src=\"https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona4.jpg\" alt=\"Instal&#xB7;ladors de v&#xE0;lvules antiretorn\" data-id=\"355\" class=\"wp-image-355\" srcset=\"https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona4.jpg 576w, https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona4-169x300.jpg 169w, https:\/\/multiserveisjoannet.es\/wp-content\/uploads\/2016\/07\/instalacion-valvula-anti-retorno-vias-fecales-residuales-barcelona4-768x1364.jpg 768w\" sizes=\"(max-width: 576px) 100vw, 576px\" \/><\/figure><\/li><\/ul><\/figure>\n\n<h2 class=\"wp-block-heading\">Tipus de v\u00e0lvules:<\/h2>\n\n<h3 class=\"wp-block-heading\">V\u00e0lvula de clapeta oscil\u00b7lant<\/h3>\n\n<p class=\"wp-block-paragraph\">Una clapeta oscil\u00b7lant funciona com a obturador i tanca el pas, per gravetat, quan el fluid circula en un sentit no desitjat (vegeu la figura, al principi). Funcionen per gravetat, per la qual cosa s&#8217;han d&#8217;instal\u00b7lar en una posici\u00f3 determinada. <\/p>\n\n<h3 class=\"wp-block-heading\">V\u00e0lvula de molla<\/h3>\n\n<p class=\"wp-block-paragraph\">No \u00e9s necessari que mantinguin una posici\u00f3 determinada, ja que el seu funcionament no dep\u00e8n de la gravetat; d&#8217;aquestes n&#8217;hi ha de dos tipus. <\/p>\n\n<p class=\"wp-block-paragraph\">En un dels tipus, una molla tarada a una determinada pressi\u00f3 mant\u00e9 un obturador sobre un anell de tancament; la pressi\u00f3 de l&#8217;aigua ven\u00e7 la resist\u00e8ncia de la molla i permet el pas del fluid, per\u00f2 la molla tanca el pas quan el fluid circula en sentit contrari.<\/p>\n\n<p class=\"wp-block-paragraph\">L&#8217;altre tipus, anomenat de doble clapeta, consta de dues clapetes semicirculars que giren sobre un eix i tanquen el pas quan queden alineades; una molla les mant\u00e9 en posici\u00f3, per\u00f2 no interv\u00e9 en la retenci\u00f3. T\u00e9 una p\u00e8rdua de c\u00e0rrega inferior a l&#8217;anterior, per\u00f2, a canvi, el tancament \u00e9s menys estanc. <\/p>\n\n<h3 class=\"wp-block-heading\">V\u00e0lvula de pist\u00f3<\/h3>\n\n<p class=\"wp-block-paragraph\">Un \u00e8mbol, acabat en un obturador, es recolza sobre l&#8217;anell de tancament; est\u00e0 allotjat dins d&#8217;un pist\u00f3 cil\u00edndric de manera que el fluid, en circular en el sentit correcte, aixeca l&#8217;\u00e8mbol, per\u00f2 en canviar de direcci\u00f3, l&#8217;\u00e8mbol s&#8217;assenta sobre l&#8217;anell; la forma del suport de l&#8217;\u00e8mbol fa que la pressi\u00f3 de l&#8217;aigua en retroc\u00e9s pressioni l&#8217;obturador contra l&#8217;anell de tancament. Igual que la primera, cal instal\u00b7lar-la en una posici\u00f3 adequada, ja que tamb\u00e9 funciona per gravetat. <\/p>\n\n<h3 class=\"wp-block-heading\">V\u00e0lvula de retenci\u00f3 de bola<\/h3>\n\n<p class=\"wp-block-paragraph\">\u00c9s un tipus especial per als terminals de bombes d&#8217;extracci\u00f3 de pous; per exemple, una bola s&#8217;assenta sobre l&#8217;anell de tancament. Quan la bomba extreu aigua del dip\u00f2sit o del pou, la bola s&#8217;aixeca i queda situada en un allotjament lateral per no obstaculitzar el pas, per\u00f2 quan la bomba s&#8217;atura, torna, per gravetat, a la seva posici\u00f3 de tancament per evitar que la canonada es buidi.<\/p>\n\n<p class=\"wp-block-paragraph\">M\u00e9s informaci\u00f3 a: <a rel=\"noopener noreferrer\" href=\"https:\/\/es.wikipedia.org\/wiki\/V%C3%A1lvula_antirretorno\" target=\"_blank\">Wikipedia<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Instal\u00b7laci\u00f3 de v\u00e0lvula antiretorn en vies fecals Projecte d&#8217;instal\u00b7laci\u00f3 de v\u00e0lvula antiretorn en vies fecals residuals a Barcelona. V\u00e0lvula antiretorn en vies fecals residuals Les v\u00e0lvules antiretorn, tamb\u00e9 anomenades v\u00e0lvules de retenci\u00f3, v\u00e0lvules unidireccionals o v\u00e0lvules check, tenen com a objectiu tancar completament el pas del fluid en circulaci\u00f3, tant si \u00e9s gas\u00f3s com l\u00edquid, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1317","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Instal\u00b7laci\u00f3 de v\u00e0lvvula antiretorn en vies fecals residuals<\/title>\n<meta name=\"description\" content=\"Multiserveis Joannet: Instal\u00b7laci\u00f3 de v\u00e0lvula antiretorn en vies fecals residuals a Barcelona. 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