{"id":802,"date":"2026-10-02T13:17:57","date_gmt":"2026-10-02T11:17:57","guid":{"rendered":"https:\/\/www.valfonta.com\/producto\/valvules-atmosferiques-alper\/"},"modified":"2026-10-22T09:23:21","modified_gmt":"2026-10-22T07:23:21","slug":"valvules-atmosferiques-alper","status":"publish","type":"product","link":"https:\/\/www.valfonta.com\/ca\/producte\/valvules-atmosferiques-alper\/","title":{"rendered":"V\u00e0lvules atmosf\u00e8riques ALPER"},"content":{"rendered":"<div class=\"wp-block-group vf-raiz vf-pl-ficha-producto is-layout-flow wp-block-group-is-layout-flow\"><nav class=\"wp-block-group vf-breadcrumbs vfa-aria-label--Ruta%20de%20navegaci%C3%B3 is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a href=\"\/ca\/\">Inici<\/a><span class=\"vf-sep\" aria-hidden=\"true\">\u203a<\/span><a href=\"https:\/\/www.valfonta.com\/ca\/valvules-de-seguretat\/\">V\u00e0lvules de seguretat<\/a><span class=\"vf-sep\" aria-hidden=\"true\">\u203a<\/span><span aria-current=\"page\">V\u00e0lvules atmosf\u00e8riques ALPER<\/span><\/p><\/nav><article class=\"wp-block-group vf-pdp vfd-model--ALPER%20atmosf%C3%A8rica is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-pdp-hero is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-pdp-title is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-pdp-eyebrow wp-block-paragraph\">V\u00e0lvula atmosf\u00e8rica \u00b7 Pressi\u00f3 i buit<\/p><h1 class=\"wp-block-heading\">V\u00e0lvules atmosf\u00e8riques ALPER<\/h1><\/div><div class=\"wp-block-group vf-pdp-media is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><span class=\"vf-pdp-badge\">Pressi\u00f3 i buit<\/span><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/alperatmos-2-700x700-1.jpg\" alt=\"V\u00e0lvula atmosf\u00e8rica ALPER de regulaci\u00f3 doble amb escapament condu\u00eft a 90\u00b0 i malla de protecci\u00f3\" class=\"wp-image-197\" width=\"700\" height=\"700\" fetchpriority=\"high\"><\/p><\/div><div class=\"wp-block-group vf-pdp-body is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-lead wp-block-paragraph\">V\u00e0lvules atmosf\u00e8riques de regulaci\u00f3 simple i doble que permeten l'entrada o la sortida d'aire en recipients estancs. Amb doble molla graduen per separat el buit i la pressi\u00f3 positiva, en rangs de pressi\u00f3 molt petits.<\/p><ul class=\"vf-pdp-keys wp-block-list\"><li><span>Mides<\/span><b>\u00bd\u2033 a 4\u2033 rosca \u00b7 brides DIN<\/b><\/li><li><span>Regulaci\u00f3<\/span><b>Simple (buit) o doble (pressi\u00f3\/buit)<\/b><\/li><li><span>Pressi\u00f3 positiva<\/span><b>+0,080 a +8 bar<\/b><\/li><li><span>Buit<\/span><b>\u22120,050 a \u22120,650 bar<\/b><\/li><li><span>Obertura<\/span><b>Progressiva<\/b><\/li><li><span>Temperatura m\u00e0x.<\/span><b>280 \u00b0C <small>inox<\/small><\/b><\/li><\/ul><div class=\"wp-block-group vf-pdp-cta is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a class=\"vf-btn vf-btn--pri\" href=\"#solicitar\">Sol\u00b7licitar oferta<\/a><a class=\"vf-btn vf-btn--sec\" href=\"\/wp-content\/uploads\/2026\/10\/ATMOSFERICAS-ALPER.pdf\" target=\"_blank\" rel=\"noopener\">Descarregar la fitxa t\u00e8cnica <small>PDF<\/small><\/a><\/p><\/div><p class=\"vf-pdp-contact wp-block-paragraph\">T\u00e9 dubtes sobre el tarat de pressi\u00f3 o de buit? Truqui al <a href=\"tel:+34933720888\">933 720 888<\/a> o escrigui a <a href=\"mailto:valfonta@valfonta.com\">valfonta@valfonta.com<\/a>.<\/p><\/div><\/div><ul class=\"vf-pdp-trust wp-block-list\"><li>Doble molla: buit i pressi\u00f3 per separat<\/li><li>Sortida protegida amb malla inoxidable<\/li><li>Versions de bronze o d'acer inoxidable<\/li><li>Escapament condu\u00eft a 90\u00b0<\/li><\/ul><nav class=\"wp-block-group vf-pdp-nav vfa-aria-label--Contingut%20de%20la%20fitxa is-layout-flow wp-block-group-is-layout-flow\"><ul class=\"wp-block-list\"><li><a href=\"#aplicaciones\">Aplicacions<\/a><\/li><li><a href=\"#especificaciones\">Especificacions<\/a><\/li><li><a href=\"#funcionamiento\">Funcionament<\/a><\/li><li><a href=\"#documentacion\">Documentaci\u00f3<\/a><\/li><li><a href=\"#preguntas\">Preguntes<\/a><\/li><li><a href=\"#solicitar\">Sol\u00b7licitar oferta<\/a><\/li><\/ul><\/nav><section id=\"aplicaciones\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Per a qu\u00e8 s'utilitzen les v\u00e0lvules atmosf\u00e8riques ALPER<\/h2><p class=\"wp-block-paragraph\">Protegeixen recipients estancs equilibrant-ne la pressi\u00f3 interna amb l'atmosf\u00e8rica. Les de <strong>regulaci\u00f3 simple<\/strong> nom\u00e9s controlen el buit; les de <strong>regulaci\u00f3 doble<\/strong> controlen tamb\u00e9 la pressi\u00f3 positiva. La sortida porta una malla d'acer inoxidable que evita l'entrada d'impureses. Formen part de la gamma de <a href=\"https:\/\/www.valfonta.com\/ca\/valvules-de-seguretat\/\">v\u00e0lvules de seguretat<\/a> de Valfonta.<\/p><\/section><section id=\"especificaciones\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Especificacions t\u00e8cniques de les v\u00e0lvules atmosf\u00e8riques ALPER<\/h2><div class=\"wp-block-group vf-tbl-wrap is-layout-flow wp-block-group-is-layout-flow\"><figure class=\"wp-block-table vf-tbl\"><table><tbody><tr><th scope=\"row\">Tipus<\/th><td>V\u00e0lvula atmosf\u00e8rica de regulaci\u00f3 simple (buit) o de regulaci\u00f3 doble (pressi\u00f3 \/ buit)<\/td><\/tr><tr><th scope=\"row\">Obertura<\/th><td>Progressiva<\/td><\/tr><tr><th scope=\"row\">Pressi\u00f3 positiva<\/th><td>De +0,080 a +8 bar<\/td><\/tr><tr><th scope=\"row\">Buit<\/th><td>De \u22120,050 a \u22120,650 bar<\/td><\/tr><tr><th scope=\"row\">Escapament<\/th><td>Condu\u00eft a 90\u00b0, amb malla d'acer inoxidable<\/td><\/tr><tr><th scope=\"row\">Connexions<\/th><td>Entrada: rosca BSP mascle o brides DIN \u00b7 Sortida: rosca BSP femella de \u00be\u2033 a 4\u2033 (brides, consultar)<\/td><\/tr><tr><th scope=\"row\">Materials<\/th><td>Campana, peu i obturador de bronze RG5 o d'acer inoxidable (campana CF-8M, peu i obturador AISI 316L)<\/td><\/tr><tr><th scope=\"row\">Temperatura m\u00e0xima<\/th><td>280 \u00b0C (inox)<\/td><\/tr><tr><th scope=\"row\">Fluids<\/th><td>L\u00edquids, aire comprimit, gasos neutres i vapor<\/td><\/tr><tr><th scope=\"row\">Altres possibilitats<\/th><td>Molla inox AISI 302\/316 \u00b7 brida d'entrada ANSI \u00b7 rosca NPT<\/td><\/tr><\/tbody><\/table><\/figure><\/div><h3 class=\"wp-block-heading\">Figures disponibles<\/h3><div class=\"wp-block-group vf-tbl-wrap is-layout-flow wp-block-group-is-layout-flow\"><figure class=\"wp-block-table vf-tbl vf-tbl--grid\"><table><thead><tr><th scope=\"col\">Figura<\/th><th scope=\"col\">Regulaci\u00f3<\/th><th scope=\"col\">Material<\/th><th scope=\"col\">Entrada<\/th><th scope=\"col\">Acabat<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">334<\/th><td>Buit<\/td><td>Inox (campana de bronze per sobre d'1\u00bc\u2033)<\/td><td>Rosca BSP \u00bd\u2033\u20134\u2033<\/td><td>Natural \/ polit<\/td><\/tr><tr><th scope=\"row\">335<\/th><td>Buit<\/td><td>Inox (campana de bronze per sobre d'1\u00bc\u2033)<\/td><td>Brides DIN DN15\u2013DN100<\/td><td>Natural \/ polit<\/td><\/tr><tr><th scope=\"row\">350<\/th><td>Buit<\/td><td>Bronze<\/td><td>Rosca BSP \u00bd\u2033\u20134\u2033<\/td><td>Niquelat<\/td><\/tr><tr><th scope=\"row\">351<\/th><td>Buit<\/td><td>Bronze<\/td><td>Brides DIN<\/td><td>Niquelat<\/td><\/tr><tr><th scope=\"row\">336<\/th><td>Pressi\u00f3 \/ buit<\/td><td>Inox (campana de bronze per sobre d'1\u00bc\u2033)<\/td><td>Rosca BSP \u00bd\u2033\u20134\u2033<\/td><td>Natural \/ polit<\/td><\/tr><tr><th scope=\"row\">337<\/th><td>Pressi\u00f3 \/ buit<\/td><td>Inox (campana de bronze per sobre d'1\u00bc\u2033)<\/td><td>Brides DIN DN15\u2013DN100<\/td><td>Natural \/ polit<\/td><\/tr><tr><th scope=\"row\">352<\/th><td>Pressi\u00f3 \/ buit<\/td><td>Bronze<\/td><td>Rosca BSP \u00bd\u2033\u20134\u2033<\/td><td>Niquelat<\/td><\/tr><tr><th scope=\"row\">353<\/th><td>Pressi\u00f3 \/ buit<\/td><td>Bronze<\/td><td>Brides DIN<\/td><td>Niquelat<\/td><\/tr><\/tbody><\/table><\/figure><\/div><\/section><section id=\"funcionamiento\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Com funcionen<\/h2><ol class=\"vf-steps wp-block-list\"><li><b>Trencament de buit.<\/b> Si la pressi\u00f3 interna baixa per sota del tarat de la molla de buit, la v\u00e0lvula s'obre cap a dins i deixa entrar aire atmosf\u00e8ric.<\/li><li><b>Alleujament de pressi\u00f3<\/b> (regulaci\u00f3 doble). Si la pressi\u00f3 interna supera el tarat de la molla de pressi\u00f3, la v\u00e0lvula s'obre cap a fora i allibera l'exc\u00e9s d'aire o de gas.<\/li><\/ol><\/section><section id=\"documentacion\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Documentaci\u00f3 t\u00e8cnica de la v\u00e0lvula atmosf\u00e8rica ALPER<\/h2><div class=\"wp-block-group vf-docs is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-doc vf-amb-enllac is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><i>PDF<\/i><\/p><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><b>Cat\u00e0leg de v\u00e0lvules atmosf\u00e8riques ALPER<\/b><span>PDF \u00b7 3 p\u00e0gines \u00b7 caracter\u00edstiques, figures i mides<\/span><\/p><\/div><p class=\"vf-enllac wp-block-paragraph\"><a class=\"vf-enllac-estirat\" href=\"\/wp-content\/uploads\/2026\/10\/ATMOSFERICAS-ALPER.pdf\" aria-label=\"PDF Cat\u00e0leg de v\u00e0lvules atmosf\u00e8riques ALPER PDF \u00b7 3 p\u00e0gines \u00b7 caracter\u00edstiques, figures i mides\" target=\"_blank\" rel=\"noopener\"><\/a><\/p><\/div><\/div><\/section><section id=\"preguntas\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Preguntes freq\u00fcents sobre la v\u00e0lvula atmosf\u00e8rica ALPER<\/h2><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Quina difer\u00e8ncia hi ha entre la regulaci\u00f3 simple i la doble?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">La regulaci\u00f3 simple (figures 334, 335, 350 i 351) nom\u00e9s actua contra el buit. La regulaci\u00f3 doble (336, 337, 352 i 353) porta dues molles i actua tamb\u00e9 contra la pressi\u00f3 positiva.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>On s&#x27;instal\u00b7la?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">En posici\u00f3 vertical, a la part superior del dip\u00f2sit o de la canonada. Conv\u00e9 comprovar peri\u00f2dicament que la malla de la sortida est\u00e0 neta.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Porten marcatge CE?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">No. Segons el cat\u00e0leg, cap de les figures de v\u00e0lvules atmosf\u00e8riques no porta certificat CE.<\/p><\/div><\/details><\/section><section id=\"relacionados\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Altres v\u00e0lvules de seguretat de Valfonta<\/h2><ul class=\"vf-rel wp-block-list\"><li><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-de-seguretat-dobertura-total-alper\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/alper-1.jpg\" alt=\"V\u00e0lvula de seguretat ALPER\" class=\"wp-image-165\" width=\"300\" height=\"300\" loading=\"lazy\"><b>V\u00e0lvula de seguretat ALPER<\/b><span>Obertura total instant\u00e0nia, fins a PN25 i 280 \u00b0C.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvules-de-seguretat-per-a-calderes-jas\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/jas-1.jpg\" alt=\"V\u00e0lvula de seguretat JAS\" class=\"wp-image-211\" width=\"300\" height=\"300\" loading=\"lazy\"><b>V\u00e0lvula de seguretat JAS<\/b><span>Obertura total de llaut\u00f3, de \u00bc\u2033 a \u00be\u2033 i PN16.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-de-seguretat-d-apertura-progresiva-figura-368-371\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/alivio-368-700x700-1.jpg\" alt=\"V\u00e0lvula de seguretat 368\u2013371\" class=\"wp-image-196\" width=\"300\" height=\"300\" loading=\"lazy\"><b>V\u00e0lvula de seguretat 368\u2013371<\/b><span>Obertura progressiva, tarat de 0 a 16 bar.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/ca\/valvules-alleujament-de-pressio\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-alivio-presion-s3-s4-perspectiva-400.webp\" alt=\"V\u00e0lvules d&#x27;alleujament de pressi\u00f3\" class=\"wp-image-10230\" width=\"300\" height=\"300\" loading=\"lazy\"><b>V\u00e0lvules d'alleujament de pressi\u00f3<\/b><span>Gamma S1\u2013S4 i PRV53\u201355, de DN15 a DN150 i tarat fins a 20 barg.<\/span><\/a><\/li><\/ul><\/section><section id=\"solicitar\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-quote is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Sol\u00b7liciti oferta de la v\u00e0lvula atmosf\u00e8rica ALPER<\/h2><p class=\"wp-block-paragraph\">Indiqui'ns les dades del seu dip\u00f2sit i li recomanarem la figura i la mida adequades.<\/p><ul class=\"wp-block-list\"><li>Fluid i temperatura del dip\u00f2sit<\/li><li>Pressi\u00f3 de tarat i\/o buit de tarat<\/li><li>Material: bronze o inox<\/li><li>Mida i connexi\u00f3 (rosca o brides)<\/li><\/ul><p class=\"vf-pdp-contact wp-block-paragraph\">Tamb\u00e9 pot trucar al <a href=\"tel:+34933720888\">933 720 888<\/a>.<\/p><\/div>\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f603-o1\" lang=\"ca\" dir=\"ltr\" data-wpcf7-id=\"603\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/ca\/wp-json\/wp\/v2\/product\/802#wpcf7-f603-o1\" method=\"post\" class=\"wpcf7-form init vf-form wpcf7-acceptance-as-validation\" aria-label=\"Formulari de contacte\" novalidate=\"novalidate\" data-status=\"init\" toolname=\"solicitar_oferta\" tooldescription=\"Demana a Valfonta una oferta dels models d&#039;aquesta p\u00e0gina (model, di\u00e0metre, fluid i pressions); respon una persona de l&#039;equip.\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"603\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.2.3\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"ca\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f603-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/><input type=\"hidden\" name=\"_vf_t\" value=\"1792703024.a39ad365d552932f\" \/>\n<\/fieldset>\n<input class=\"wpcf7-form-control wpcf7-hidden\" value=\"ALPER atmosf\u00e9rica\" type=\"hidden\" name=\"modelo\" \/><label>Nom *<span class=\"wpcf7-form-control-wrap\" data-name=\"nombre\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" autocomplete=\"name\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"nombre\" \/><\/span><\/label><label>Empresa<span class=\"wpcf7-form-control-wrap\" data-name=\"empresa\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" autocomplete=\"organization\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"empresa\" \/><\/span><\/label><label>Correu electr\u00f2nic *<span class=\"wpcf7-form-control-wrap\" data-name=\"email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" autocomplete=\"email\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"email\" name=\"email\" \/><\/span><\/label><label>Tel\u00e8fon<span class=\"wpcf7-form-control-wrap\" data-name=\"telefono\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-text wpcf7-validates-as-tel\" autocomplete=\"tel\" aria-invalid=\"false\" value=\"\" type=\"tel\" name=\"telefono\" \/><\/span><\/label><fieldset><legend>Dades de l'aplicaci\u00f3 (opcional)<\/legend><label>Di\u00e0metre<span class=\"wpcf7-form-control-wrap\" data-name=\"dn\"><select class=\"wpcf7-form-control wpcf7-select\" aria-invalid=\"false\" name=\"dn\"><option value=\"\">Seleccioni<\/option><option value=\"\u00bd\u2033\">\u00bd\u2033<\/option><option value=\"\u00be\u2033\">\u00be\u2033<\/option><option value=\"1\u2033\">1\u2033<\/option><option value=\"1\u00bc\u2033\">1\u00bc\u2033<\/option><option value=\"1\u00bd\u2033\">1\u00bd\u2033<\/option><option value=\"2\u2033\">2\u2033<\/option><option value=\"2\u00bd\u2033\">2\u00bd\u2033<\/option><option value=\"3\u2033\">3\u2033<\/option><option value=\"4\u2033\">4\u2033<\/option><option value=\"DN15 a DN100 (brides)\">DN15 a DN100 (brides)<\/option><option value=\"No ho s\u00e9\">No ho s\u00e9<\/option><\/select><\/span><\/label><label>Fluid<span class=\"wpcf7-form-control-wrap\" data-name=\"fluido\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"aire, gas inert, aigua\u2026\" value=\"\" type=\"text\" name=\"fluido\" \/><\/span><\/label><label>Pressi\u00f3 de tarat (bar)<span class=\"wpcf7-form-control-wrap\" data-name=\"tarado\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"tarado\" \/><\/span><\/label><label>Buit de tarat (bar)<span class=\"wpcf7-form-control-wrap\" data-name=\"vacio\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"p. ex. \u22120,1\" value=\"\" type=\"text\" name=\"vacio\" \/><\/span><\/label><label>Temperatura (\u00b0C)<span class=\"wpcf7-form-control-wrap\" data-name=\"temperatura\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"temperatura\" \/><\/span><\/label><\/fieldset><label class=\"vf-full\">Missatge<span class=\"wpcf7-form-control-wrap\" data-name=\"mensaje\"><textarea cols=\"40\" rows=\"4\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" name=\"mensaje\"><\/textarea><\/span><\/label><label class=\"vf-chk vf-full\"><span class=\"wpcf7-form-control-wrap\" data-name=\"privacidad\"><span class=\"wpcf7-form-control wpcf7-acceptance\"><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"privacidad\" value=\"1\" aria-invalid=\"false\" \/><\/span><\/span><\/span> <span>He llegit i accepto la <a href=\"\/ca\/politica-de-privacitat\/\">pol\u00edtica de privacitat<\/a> *<\/span><\/label><input class=\"wpcf7-form-control wpcf7-submit has-spinner vf-btn vf-btn--pri\" type=\"submit\" value=\"Enviar la sol\u00b7licitud\" \/><span class=\"vf-hp\" aria-hidden=\"true\"><label>Web <input type=\"text\" name=\"vf_web\" value=\"\" tabindex=\"-1\" autocomplete=\"off\" toolparamdescription=\"Campo de control: d\u00e9jalo vac\u00edo\"><\/label><\/span><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n\n<\/div><\/section><div class=\"wp-block-group vf-pdp-bar is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a class=\"vf-btn vf-btn--sec\" href=\"tel:+34933720888\">Trucar<\/a><a class=\"vf-btn vf-btn--pri\" href=\"#solicitar\">Sol\u00b7licitar oferta<\/a><\/p><\/div><\/article><\/div>","protected":false},"excerpt":{"rendered":"<p>Inici\u203aV\u00e0lvules de seguretat\u203aV\u00e0lvules atmosf\u00e8riques ALPER V\u00e0lvula atmosf\u00e8rica \u00b7 Pressi\u00f3 i buit V\u00e0lvules atmosf\u00e8riques ALPER Pressi\u00f3 i buit V\u00e0lvules atmosf\u00e8riques de regulaci\u00f3 simple i doble que permeten l'entrada o la sortida d'aire en recipients estancs. Amb doble molla graduen per separat el buit i la pressi\u00f3 positiva, en rangs de pressi\u00f3 molt petits. Sol\u00b7licitar ofertaDescarregar la ... <a title=\"V\u00e0lvules atmosf\u00e8riques ALPER\" class=\"read-more\" href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvules-atmosferiques-alper\/\" aria-label=\"M\u00e9s informaci\u00f3 sobre V\u00e0lvules atmosf\u00e8riques ALPER\">Llegiu m\u00e9s<\/a><\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false,"_generate-full-width-content":"true","_generate-disable-headline":"true","rank_math_title":"V\u00e0lvules atmosf\u00e8riques ALPER per a buit i pressi\u00f3 | Valfonta","rank_math_description":"V\u00e0lvules atmosf\u00e8riques ALPER de regulaci\u00f3 simple (buit) o doble (pressi\u00f3\/buit) per a recipients estancs. De +0,080 a +8 bar i de \u22120,050 a \u22120,650 bar.","rank_math_focus_keyword":"","vf_jsonld":"[{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.valfonta.com\/#organization\",\"name\":\"Valfonta\",\"legalName\":\"Val Fonta, S.L.\",\"taxID\":\"B59935718\",\"url\":\"https:\/\/www.valfonta.com\/ca\/\",\"logo\":{\"@type\":\"ImageObject\",\"url\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valfonta-logo.webp\"},\"foundingDate\":\"1962\",\"email\":\"valfonta@valfonta.com\",\"telephone\":\"+34 933 720 888\",\"address\":{\"@type\":\"PostalAddress\",\"streetAddress\":\"C\/ Bronze 26, Pol. Ind. Les Guixeres\",\"postalCode\":\"08915\",\"addressLocality\":\"Badalona\",\"addressRegion\":\"Barcelona\",\"addressCountry\":\"ES\"},\"description\":\"Disseny, fabricaci\u00f3 i venda de v\u00e0lvules reductores de pressi\u00f3, v\u00e0lvules d'alleujament de pressi\u00f3 i v\u00e0lvules de control.\"},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.valfonta.com\/#website\",\"url\":\"https:\/\/www.valfonta.com\/ca\/\",\"name\":\"Valfonta\",\"publisher\":{\"@id\":\"https:\/\/www.valfonta.com\/#organization\"},\"inLanguage\":\"ca\"},{\"@type\":\"ItemPage\",\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvules-atmosferiques-alper\/#webpage\",\"url\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvules-atmosferiques-alper\/\",\"name\":\"V\u00e0lvules atmosf\u00e8riques ALPER per a buit i pressi\u00f3 | Valfonta\",\"description\":\"V\u00e0lvules atmosf\u00e8riques ALPER de regulaci\u00f3 simple (buit) o doble (pressi\u00f3\/buit) per a recipients estancs. De +0,080 a +8 bar i de \u22120,050 a \u22120,650 bar.\",\"isPartOf\":{\"@id\":\"https:\/\/www.valfonta.com\/#website\"},\"about\":{\"@id\":\"https:\/\/www.valfonta.com\/#organization\"},\"inLanguage\":\"ca\",\"datePublished\":\"2020-02-05T13:26:55+02:00\",\"dateModified\":\"2025-12-19T10:43:37+02:00\",\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/alperatmos-2-700x700-1.jpg\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvules-atmosferiques-alper\/#breadcrumb\"},\"mainEntity\":{\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvules-atmosferiques-alper\/#product\"}},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/alperatmos-2-700x700-1.jpg\",\"url\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/alperatmos-2-700x700-1.jpg\",\"width\":\"1000\",\"height\":\"1000\",\"caption\":\"V\u00e0lvula atmosf\u00e8rica\",\"inLanguage\":\"ca\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvules-atmosferiques-alper\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Inici\",\"item\":\"https:\/\/www.valfonta.com\/ca\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"V\u00e0lvules de seguretat\",\"item\":\"https:\/\/www.valfonta.com\/ca\/valvules-de-seguretat\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"V\u00e0lvules atmosf\u00e8riques ALPER\",\"item\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvules-atmosferiques-alper\/\"}]},{\"@type\":\"Product\",\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvules-atmosferiques-alper\/#product\",\"name\":\"V\u00e0lvules atmosf\u00e8riques ALPER\",\"url\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvules-atmosferiques-alper\/\",\"description\":\"V\u00e0lvules atmosf\u00e8riques de regulaci\u00f3 simple i doble que permeten l'entrada o la sortida d'aire en recipients estancs. Amb doble molla graduen per separat el buit i la pressi\u00f3 positiva, en rangs de pressi\u00f3 molt petits.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Valfonta\"},\"manufacturer\":{\"@id\":\"https:\/\/www.valfonta.com\/#organization\"},\"model\":\"ALPER atmosf\u00e8rica\",\"image\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/alperatmos-2-700x700-1.jpg\",\"material\":\"Bronze RG5 o acer inoxidable AISI 316L \/ CF-8M\",\"additionalProperty\":[{\"@type\":\"PropertyValue\",\"name\":\"Tipus\",\"value\":\"V\u00e0lvula atmosf\u00e8rica de regulaci\u00f3 simple (buit) o de regulaci\u00f3 doble (pressi\u00f3 \/ buit)\"},{\"@type\":\"PropertyValue\",\"name\":\"Obertura\",\"value\":\"Progressiva\"},{\"@type\":\"PropertyValue\",\"name\":\"Pressi\u00f3 positiva\",\"value\":\"De +0,080 a +8 bar\"},{\"@type\":\"PropertyValue\",\"name\":\"Buit\",\"value\":\"De \u22120,050 a \u22120,650 bar\"},{\"@type\":\"PropertyValue\",\"name\":\"Escapament\",\"value\":\"Condu\u00eft a 90\u00b0, amb malla d'acer inoxidable\"},{\"@type\":\"PropertyValue\",\"name\":\"Connexions\",\"value\":\"Entrada: rosca BSP mascle o brides DIN \u00b7 Sortida: rosca BSP femella de \u00be\u2033 a 4\u2033 (brides, consultar)\"},{\"@type\":\"PropertyValue\",\"name\":\"Materials\",\"value\":\"Campana, peu i obturador de bronze RG5 o d'acer inoxidable (campana CF-8M, peu i obturador AISI 316L)\"},{\"@type\":\"PropertyValue\",\"name\":\"Temperatura m\u00e0xima\",\"value\":\"280 \u00b0C (inox)\"},{\"@type\":\"PropertyValue\",\"name\":\"Fluids\",\"value\":\"L\u00edquids, aire comprimit, gasos neutres i vapor\"},{\"@type\":\"PropertyValue\",\"name\":\"Altres possibilitats\",\"value\":\"Molla inox AISI 302\/316 \u00b7 brida d'entrada ANSI \u00b7 rosca NPT\"}],\"category\":\"V\u00e0lvules de seguretat\",\"subjectOf\":[{\"@type\":\"DigitalDocument\",\"name\":\"Cat\u00e0leg de v\u00e0lvules atmosf\u00e8riques ALPER\",\"url\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ATMOSFERICAS-ALPER.pdf\",\"encodingFormat\":\"application\/pdf\"}]},{\"@type\":\"FAQPage\",\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvules-atmosferiques-alper\/#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Quina difer\u00e8ncia hi ha entre la regulaci\u00f3 simple i la doble?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"La regulaci\u00f3 simple (figures 334, 335, 350 i 351) nom\u00e9s actua contra el buit. La regulaci\u00f3 doble (336, 337, 352 i 353) porta dues molles i actua tamb\u00e9 contra la pressi\u00f3 positiva.\"}},{\"@type\":\"Question\",\"name\":\"On s'instal\u00b7la?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"En posici\u00f3 vertical, a la part superior del dip\u00f2sit o de la canonada. Conv\u00e9 comprovar peri\u00f2dicament que la malla de la sortida est\u00e0 neta.\"}},{\"@type\":\"Question\",\"name\":\"Porten marcatge CE?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Segons el cat\u00e0leg, cap de les figures de v\u00e0lvules atmosf\u00e8riques no porta certificat CE.\"}}]}]}]"},"product_brand":[],"product_cat":[80],"product_tag":[],"class_list":["post-802","product","type-product","status-publish","product_cat-uncategorized","first","instock","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/product\/802","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/types\/product"}],"wp:attachment":[{"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/media?parent=802"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/product_brand?post=802"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/product_cat?post=802"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/product_tag?post=802"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}