{"id":793,"date":"2026-10-02T13:17:47","date_gmt":"2026-10-02T11:17:47","guid":{"rendered":"https:\/\/www.valfonta.com\/producto\/valvula-reductora-de-pressio-autoaccionada\/"},"modified":"2026-10-22T09:23:55","modified_gmt":"2026-10-22T07:23:55","slug":"valvula-reductora-de-pressio-autoaccionada","status":"publish","type":"product","link":"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/","title":{"rendered":"V\u00e0lvula reductora de pressi\u00f3 M1"},"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 aria-hidden=\"true\" class=\"vf-sep\">\u203a<\/span><a href=\"https:\/\/www.valfonta.com\/ca\/valvules-reductores-de-pressio\/\">V\u00e0lvules reductores de pressi\u00f3<\/a><span aria-hidden=\"true\" class=\"vf-sep\">\u203a<\/span><span aria-current=\"page\">V\u00e0lvula reductora de pressi\u00f3 M1<\/span><\/p><\/nav><article class=\"wp-block-group vf-pdp vfd-model--M1 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 reductora de pressi\u00f3 \u00b7 Autoaccionada per membrana<\/p><h1 class=\"wp-block-heading\">V\u00e0lvula reductora de pressi\u00f3 M1<\/h1><\/div><div class=\"wp-block-group vf-pdp-media vf-photo is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><span class=\"vf-pdp-badge\">Vapor fins a 220 \u00b0C<\/span><\/p><figure class=\"wp-block-image vf-img-suelta\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-reductora-presion-m1-perspectiva.webp\" alt=\"V\u00e0lvula reductora de pressi\u00f3 M1 amb actuador de membrana, vista en perspectiva\" class=\"wp-image-213\" width=\"900\" height=\"900\" fetchpriority=\"high\"><\/figure><div class=\"wp-block-group vf-pdp-thumbs is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><button aria-label=\"Veure la vista en perspectiva\" aria-pressed=\"true\" data-alt=\"V\u00e0lvula reductora de pressi\u00f3 M1 amb actuador de membrana, vista en perspectiva\" data-vf-thumb=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-reductora-presion-m1-perspectiva.webp\" type=\"button\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-reductora-presion-m1-perspectiva-400.webp\" alt=\"\" class=\"wp-image-201\" width=\"58\" height=\"58\" loading=\"lazy\"><\/button><button aria-label=\"Veure la vista frontal\" aria-pressed=\"false\" data-alt=\"V\u00e0lvula reductora de pressi\u00f3 M1 amb actuador de membrana, vista frontal\" data-vf-thumb=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-reductora-presion-m1-frontal.webp\" type=\"button\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-reductora-presion-m1-frontal-400.webp\" alt=\"\" class=\"wp-image-214\" width=\"58\" height=\"58\" loading=\"lazy\"><\/button><\/p><\/div><\/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\">Reductora autoaccionada de seient simple: la membrana controla la pressi\u00f3 de sortida i una manxa de doble capa d'acer inoxidable segella l'eix, sense energia auxiliar. Treballa amb vapor, aire comprimit, gasos neutres i l\u00edquids, de DN15 a DN150.<\/p><ul class=\"vf-pdp-keys wp-block-list\"><li><span>Di\u00e0metres<\/span><b>DN15 a DN150<\/b><\/li><li><span>Pressi\u00f3 nominal<\/span><b>PN16 a PN40 \u00b7 Classe 150\/300<\/b><\/li><li><span>Pressi\u00f3 d'entrada<\/span><b>fins a 40 barg <small>25 barg des de DN65<\/small><\/b><\/li><li><span>Pressi\u00f3 de sortida<\/span><b>0,1 a 15 barg<\/b><\/li><li><span>Temperatura<\/span><b>fins a 220 \u00b0C <small>amb barrilet<\/small><\/b><\/li><li><span>Kv<\/span><b>3,5 a 240 m\u00b3\/h<\/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\/M1-15A-ESP.pdf\" rel=\"noopener\" target=\"_blank\">Descarregar la fitxa t\u00e8cnica <small>PDF<\/small><\/a><\/p><\/div><p class=\"vf-pdp-contact wp-block-paragraph\">T\u00e9 dubtes sobre el dimensionament? 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>Disseny i fabricaci\u00f3 pr\u00f2pies a Badalona<\/li><li>Marcatge ATEX II 2 GD per a zones 1 i 21<\/li><li>Eix segellat per manxa amb sistema antitorsi\u00f3<\/li><li>Recanvis originals amb el n\u00famero de s\u00e8rie de la placa<\/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=\"#instalacion\">Instal\u00b7laci\u00f3<\/a><\/li><li><a href=\"#documentacion\">Documentaci\u00f3<\/a><\/li><li><a href=\"#comparar\">Comparar<\/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\"><div class=\"wp-block-group vf-pdp-two 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\">Per a qu\u00e8 s'utilitza la M1<\/h2><p class=\"wp-block-paragraph\">La <strong>M1<\/strong> \u00e9s una <a href=\"https:\/\/www.valfonta.com\/ca\/valvules-reductores-de-pressio\/\">v\u00e0lvula reductora de pressi\u00f3<\/a> autoaccionada: la pressi\u00f3 de sortida arriba a la membrana per una canonada de comandament i s'equilibra amb les molles de regulaci\u00f3. No necessita energia auxiliar i respon amb rapidesa als canvis de demanda.<\/p><p class=\"wp-block-paragraph\">\u00c9s el model de la gamma que arriba al di\u00e0metre m\u00e9s gran, <strong>DN150<\/strong>, i a la temperatura m\u00e9s alta, <strong>220 \u00b0C<\/strong> amb membrana d'EPDM+PTFE i tanc de condensaci\u00f3. A partir de DN65 incorpora un \u00e8mbol que compensa la pressi\u00f3 d'entrada.<\/p><ul class=\"vf-pdp-apps wp-block-list\"><li><b>Xarxes de vapor<\/b><span>Reducci\u00f3 de la pressi\u00f3 de vapor fins a 220 \u00b0C, amb barrilet.<\/span><\/li><li><b>Aire comprimit<\/b><span>Ajust de la pressi\u00f3 de xarxa al valor de cada consum.<\/span><\/li><li><b>Gasos neutres<\/b><span>L\u00ednies de gasos no inflamables.<\/span><\/li><li><b>L\u00edquids<\/b><span>Aigua i altres l\u00edquids; per sobre de 125 \u00b0C, amb barrilet.<\/span><\/li><li><b>Grans cabals<\/b><span>Fins a DN150 i Kv de 240 m\u00b3\/h.<\/span><\/li><\/ul><\/div><aside class=\"wp-block-group vf-pdp-fit is-layout-flow wp-block-group-is-layout-flow\"><h3 class=\"wp-block-heading\">Tri\u00ef la M1 si\u2026<\/h3><ul class=\"vf-si wp-block-list\"><li>Regula vapor o l\u00edquids calents, fins a 220 \u00b0C.<\/li><li>Necessita di\u00e0metres de DN65 a DN150 o cabals alts.<\/li><li>Vol un rang de sortida ampli, de 0,1 a 15 barg.<\/li><li>Busca una reductora sense energia auxiliar i amb eix segellat per manxa.<\/li><\/ul><h3 class=\"wp-block-heading\">Millor un altre model si\u2026<\/h3><ul class=\"vf-no wp-block-list\"><li>Necessita menys de 0,1 barg: la <a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio\/\">M2<\/a> regula des de 0,02 barg i la <a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-model-prv45\/\">PRV45<\/a>, des de 0,01 barg.<\/li><li>Utilitza vapor fins a 200 \u00b0C en DN15\u201350 i no vol barrilet: vegi la <a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-amb-manxa\/\">M2F<\/a>.<\/li><li>\u00c9s una l\u00ednia petita i sense vapor: la <a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv20\/\">PRV20<\/a> i la <a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv30\/\">PRV30<\/a>, en inox 316L, cobreixen de DN8 a DN25.<\/li><li>Ha de mantenir la pressi\u00f3 d'entrada, no la de sortida: vegi la <a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-exces-de-pressio\/\">S1<\/a>.<\/li><\/ul><\/aside><\/div><\/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 la M1<\/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>Reductora autoaccionada de globus i seient simple, amb pressi\u00f3 de sortida compensada per membrana<\/td><\/tr><tr><th scope=\"row\">Di\u00e0metres<\/th><td>DN15 a DN150<\/td><\/tr><tr><th scope=\"row\">Connexions<\/th><td>Brides EN 1092 PN16 a PN40 \u00b7 Brides ANSI 150\/300 \u00b7 Rosca BSP o NPT (\u00bd\u2033 a 2\u2033)<\/td><\/tr><tr><th scope=\"row\">Pressi\u00f3 nominal<\/th><td>PN16, PN25 o PN40 \u00b7 Classe 150 o 300<\/td><\/tr><tr><th scope=\"row\">Pressi\u00f3 m\u00e0xima d'entrada<\/th><td>40 barg (DN15 a DN50) \u00b7 25 barg (DN65 a DN150)<\/td><\/tr><tr><th scope=\"row\">Pressi\u00f3 diferencial m\u00e0xima<\/th><td>25 bar (DN15\u201350) \u00b7 20 bar (DN65\u201380) \u00b7 16 bar (DN100\u2013150)<\/td><\/tr><tr><th scope=\"row\">Rangs de pressi\u00f3 de sortida<\/th><td>0,1\u20131,5 \u00b7 1\u20133 \u00b7 2\u20135 \u00b7 4\u20138 \u00b7 7\u201315 barg<\/td><\/tr><tr><th scope=\"row\">Coeficient Kv<\/th><td>3,5 a 240 m\u00b3\/h segons el DN. Kv redu\u00eft sota comanda<\/td><\/tr><tr><th scope=\"row\">Temperatura a l'actuador<\/th><td>Membrana EPDM: \u221240 a 125 \u00b0C \u00b7 EPDM+PTFE amb tanc de condensaci\u00f3: fins a 220 \u00b0C<\/td><\/tr><tr><th scope=\"row\">Obturador<\/th><td>PTFE grafitat de s\u00e8rie (220 \u00b0C). Tamb\u00e9 NBR (80 \u00b0C), PEEK, EPDM\u2026<\/td><\/tr><tr><th scope=\"row\">Fluids<\/th><td>Vapor, aire comprimit, gasos neutres i l\u00edquids<\/td><\/tr><tr><th scope=\"row\">Materials<\/th><td>Cos en bronze RG10, acer al carboni A216 WCB o inox A351 CF3M. Interiors en inox AISI 316L. Manxa de doble capa en AISI 316Ti<\/td><\/tr><tr><th scope=\"row\">Presa de pressi\u00f3<\/th><td>Canonada de comandament externa, tub de 10 \u00d7 1 mm<\/td><\/tr><tr><th scope=\"row\">Posici\u00f3 de muntatge<\/th><td>Canonada horitzontal, actuador cap avall (cap amunt nom\u00e9s amb gasos i l\u00edquids fins a 80 \u00b0C)<\/td><\/tr><tr><th scope=\"row\">Directiva d'equips a pressi\u00f3<\/th><td>PED 2014\/68\/UE: la xapa indica si requereix marcatge CE<\/td><\/tr><tr><th scope=\"row\">ATEX<\/th><td>II 2 GD c IIC Tx \/ c IIIC Tx\u00baC \u00b7 certificat LOM 14.034 U<\/td><\/tr><tr><th scope=\"row\">Sota comanda<\/th><td>Interiors de Monel o bronze \u00b7 presa de pressi\u00f3 al cos (ajustos de m\u00e9s d'1 bar) \u00b7 cos d\u00faplex o superd\u00faplex \u00b7 extrems soldables<\/td><\/tr><\/tbody><\/table><\/figure><\/div><h3 class=\"wp-block-heading\">Dimensions i pes<\/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\"><\/th><th scope=\"col\">DN15<\/th><th scope=\"col\">DN20<\/th><th scope=\"col\">DN25<\/th><th scope=\"col\">DN32<\/th><th scope=\"col\">DN40<\/th><th scope=\"col\">DN50<\/th><th scope=\"col\">DN65<\/th><th scope=\"col\">DN80<\/th><th scope=\"col\">DN100<\/th><th scope=\"col\">DN125<\/th><th scope=\"col\">DN150<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">Kv (m\u00b3\/h)<\/th><td>3,5<\/td><td>5<\/td><td>9<\/td><td>13,5<\/td><td>22<\/td><td>32<\/td><td>57<\/td><td>82<\/td><td>115<\/td><td>190<\/td><td>240<\/td><\/tr><tr><th scope=\"row\">Longitud A (EN)<\/th><td>130<\/td><td>150<\/td><td>160<\/td><td>180<\/td><td>200<\/td><td>230<\/td><td>290<\/td><td>310<\/td><td>350<\/td><td>400<\/td><td>480<\/td><\/tr><tr><th scope=\"row\">Longitud A (ANSI 150)<\/th><td>\u25cb<\/td><td>\u25cb<\/td><td>184<\/td><td>\u2013<\/td><td>222<\/td><td>254<\/td><td>276<\/td><td>298,5<\/td><td>352,5<\/td><td>\u2013<\/td><td>451<\/td><\/tr><tr><th scope=\"row\">Longitud A (ANSI 300)<\/th><td>\u25cb<\/td><td>\u25cb<\/td><td>197<\/td><td>\u2013<\/td><td>235<\/td><td>267<\/td><td>292<\/td><td>317,5<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">Al\u00e7ada L<\/th><td>440<\/td><td>445<\/td><td>450<\/td><td>455<\/td><td>463<\/td><td>475<\/td><td>560<\/td><td>560<\/td><td>575<\/td><td>600<\/td><td>640<\/td><\/tr><tr><th scope=\"row\">Pes (kg)<\/th><td>20<\/td><td>22<\/td><td>24<\/td><td>28<\/td><td>32<\/td><td>35<\/td><td>52<\/td><td>57<\/td><td>68<\/td><td>85<\/td><td>105<\/td><\/tr><\/tbody><\/table><\/figure><\/div><p class=\"vf-note wp-block-paragraph\">Mides en mil\u00b7l\u00edmetres. \u25cb: sota consulta. En DN150, longitud de 450 mm sota comanda.<\/p><h3 class=\"wp-block-heading\">Rangs de sortida i di\u00e0metre de l'actuador (mm)<\/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\">Rang (barg)<\/th><th scope=\"col\">DN15\u201320<\/th><th scope=\"col\">DN25\u201332<\/th><th scope=\"col\">DN40\u201350<\/th><th scope=\"col\">DN65<\/th><th scope=\"col\">DN80<\/th><th scope=\"col\">DN100<\/th><th scope=\"col\">DN125<\/th><th scope=\"col\">DN150<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">0,1 \u2013 1,5<\/th><td>295<\/td><td>295<\/td><td>295<\/td><td>295<\/td><td>350<\/td><td>350<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">1 \u2013 3<\/th><td>255<\/td><td>255<\/td><td>255<\/td><td>255<\/td><td>295<\/td><td>295<\/td><td>295<\/td><td>350<\/td><\/tr><tr><th scope=\"row\">2 \u2013 5<\/th><td>230<\/td><td>230<\/td><td>230<\/td><td>230<\/td><td>255<\/td><td>255<\/td><td>255<\/td><td>295<\/td><\/tr><tr><th scope=\"row\">4 \u2013 8<\/th><td>195<\/td><td>195<\/td><td>195<\/td><td>195<\/td><td>230<\/td><td>230<\/td><td>230<\/td><td>255<\/td><\/tr><tr><th scope=\"row\">7 \u2013 15<\/th><td>175<\/td><td>175<\/td><td>175<\/td><td>175<\/td><td>195<\/td><td>195<\/td><td>195<\/td><td>230<\/td><\/tr><\/tbody><\/table><\/figure><\/div><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Especejament i materials (44 peces)<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><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\">N\u00fam.<\/th><th scope=\"col\">Pe\u00e7a<\/th><th scope=\"col\">Material<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">1<\/th><td>Cos<\/td><td>RG10, 1.0619 (GS-C25N) o 1.4408<\/td><\/tr><tr><th scope=\"row\">3<\/th><td>Guia del tancament<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">4<\/th><td>Casquet<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">5<\/th><td>Volandera del casquet<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">6<\/th><td>Tapa<\/td><td>Acer 1.1191 o 1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">7<\/th><td>Cargols<\/td><td>Acer 8.8 o inox A2<\/td><\/tr><tr><th scope=\"row\">8<\/th><td>Guia de la manxa<\/td><td>Acer 1.0570, 1.1191 o 316L<\/td><\/tr><tr><th scope=\"row\">9<\/th><td>Junta t\u00f2rica o junta<\/td><td>Viton o grafit + SS304<\/td><\/tr><tr><th scope=\"row\">10<\/th><td>Molles<\/td><td>Acer 1.0904 (55Si7)<\/td><\/tr><tr><th scope=\"row\">11<\/th><td>Rodament<\/td><td>Acer 1.3505 (100Cr6)<\/td><\/tr><tr><th scope=\"row\">12<\/th><td>Suport superior de molles<\/td><td>Acer 1.1191<\/td><\/tr><tr><th scope=\"row\">13<\/th><td>Femella de regulaci\u00f3<\/td><td>Acer 8.8<\/td><\/tr><tr><th scope=\"row\">14<\/th><td>Platina<\/td><td>Acer 1.1191<\/td><\/tr><tr><th scope=\"row\">15<\/th><td>Femella M12<\/td><td>Acer 8.8<\/td><\/tr><tr><th scope=\"row\">16<\/th><td>Guia de l'eix de membrana<\/td><td>Acer 1.1191<\/td><\/tr><tr><th scope=\"row\">17<\/th><td>Femella<\/td><td>Acer 8.8<\/td><\/tr><tr><th scope=\"row\">18<\/th><td>R\u00e0cord<\/td><td>Llaut\u00f3 o inox<\/td><\/tr><tr><th scope=\"row\">19<\/th><td>Membrana<\/td><td>EPDM, EPDM+PTFE, NBR, Viton\u2026<\/td><\/tr><tr><th scope=\"row\">20<\/th><td>Actuador superior<\/td><td>Xapa 1.0335 epoxi o inox 316<\/td><\/tr><tr><th scope=\"row\">21<\/th><td>Femella de membrana<\/td><td>1.4301 (304)<\/td><\/tr><tr><th scope=\"row\">22<\/th><td>Junta t\u00f2rica<\/td><td>Viton<\/td><\/tr><tr><th scope=\"row\">23<\/th><td>Plat de membrana<\/td><td>Acer 1.1191<\/td><\/tr><tr><th scope=\"row\">24<\/th><td>Eix de membrana<\/td><td>Acer 1.1191<\/td><\/tr><tr><th scope=\"row\">25<\/th><td>Cargol<\/td><td>Inox A2<\/td><\/tr><tr><th scope=\"row\">25b<\/th><td>Femella<\/td><td>Inox A2<\/td><\/tr><tr><th scope=\"row\">26<\/th><td>Actuador inferior<\/td><td>Xapa 1.0335 epoxi o inox 316<\/td><\/tr><tr><th scope=\"row\">27<\/th><td>Cargol<\/td><td>Acer 8.8<\/td><\/tr><tr><th scope=\"row\">28<\/th><td>Sistema antitorsi\u00f3<\/td><td>Acer 1.1191<\/td><\/tr><tr><th scope=\"row\">29<\/th><td>Eix de regulaci\u00f3<\/td><td>1.4301 (304)<\/td><\/tr><tr><th scope=\"row\">30<\/th><td>Guia del coixinet<\/td><td>1.4307 (304L)<\/td><\/tr><tr><th scope=\"row\">31<\/th><td>Columna<\/td><td>Acer 1.1191<\/td><\/tr><tr><th scope=\"row\">32<\/th><td>Femella guia de la manxa<\/td><td>Acer 1.1191 o 1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">33<\/th><td>Manxa<\/td><td>Inox AISI 316Ti<\/td><\/tr><tr><th scope=\"row\">34<\/th><td>Suport inferior de la molla<\/td><td>Acer 1.1191<\/td><\/tr><tr><th scope=\"row\">35<\/th><td>Junta del cos<\/td><td>Grafit + SS304<\/td><\/tr><tr><th scope=\"row\">35b<\/th><td>Junta de la guia<\/td><td>Grafit + SS304<\/td><\/tr><tr><th scope=\"row\">36<\/th><td>Guia del casquet<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">37<\/th><td>Collaret d'equilibratge<\/td><td>PTFE grafitat<\/td><\/tr><tr><th scope=\"row\">38<\/th><td>Cargol Allen<\/td><td>Inox A2<\/td><\/tr><tr><th scope=\"row\">39<\/th><td>Suport del tancament<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">40<\/th><td>Tancament de l'obturador<\/td><td>PTFE grafitat<\/td><\/tr><tr><th scope=\"row\">41<\/th><td>Volandera<\/td><td>Inox A2<\/td><\/tr><tr><th scope=\"row\">42<\/th><td>Femella<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">45<\/th><td>Casquet del tancament<\/td><td>1.4404 (316L)<\/td><\/tr><\/tbody><\/table><\/figure><\/div><\/div><\/details><\/section><section id=\"funcionamiento\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-pdp-two 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\">Com funciona la M1<\/h2><p class=\"wp-block-paragraph\">Equilibri de forces entre les molles de regulaci\u00f3 i la pressi\u00f3 de sortida sobre la membrana: la v\u00e0lvula es tanca quan la pressi\u00f3 aig\u00fces avall augmenta.<\/p><ol class=\"vf-steps wp-block-list\"><li><b>Entrada del fluid.<\/b> El fluid entra segons la fletxa i despla\u00e7a l'obturador, la posici\u00f3 del qual fixa el cabal.<\/li><li><b>Ajust.<\/b> La femella de regulaci\u00f3 tensa les molles i fixa la pressi\u00f3 de sortida.<\/li><li><b>Mesura a la membrana.<\/b> La pressi\u00f3 de sortida arriba a la membrana per la canonada de comandament i s'oposa a les molles, de manera que mou l'obturador.<\/li><li><b>Tancament proporcional.<\/b> Si la pressi\u00f3 supera el valor ajustat, la v\u00e0lvula es tanca proporcionalment fins a recuperar-lo.<\/li><li><b>Compensaci\u00f3 des de DN65.<\/b> Un \u00e8mbol equilibra la pressi\u00f3 d'entrada i n'absorbeix les oscil\u00b7lacions.<\/li><\/ol><p class=\"wp-block-paragraph\">Pist\u00f3 o membrana: vegi la nostra comparativa de reductores de pist\u00f3 i de membrana.<\/p><\/div><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><figure class=\"wp-block-video\"><video height=\"1080\" style=\"aspect-ratio: 1920 \/ 1080;\" width=\"1920\" controls playsinline preload=\"none\" poster=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-M1-S1-3D-700x700-1.jpg\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/M1-VIDEO.mp4\"><\/video><\/figure><p class=\"vf-note vf-s-d43169 wp-block-paragraph\">V\u00eddeo del model M1.<\/p><\/div><\/div><\/section><section id=\"instalacion\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Instal\u00b7laci\u00f3 de la M1<\/h2><p class=\"wp-block-paragraph\">Esquema recomanat: bypass, v\u00e0lvules de tall, filtre, man\u00f2metres i v\u00e0lvula de seguretat. A m\u00e9s, la M1 necessita una <strong>canonada de comandament<\/strong> i, amb vapor o l\u00edquids a m\u00e9s de 125 \u00b0C, un <strong>tanc de condensaci\u00f3<\/strong> (barrilet). M\u00e9s detall a les nostres guies sobre com instal\u00b7lar una v\u00e0lvula reductora de pressi\u00f3 i sobre la reductora de pressi\u00f3 per a vapor.<\/p><div class=\"wp-block-group vf-diagram vf-s-7307c0 vf-t-figure is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-svgw is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><svg aria-label=\"Esquema d'instal\u00b7laci\u00f3 recomanat d'una v\u00e0lvula reductora de pressi\u00f3, amb bypass\" role=\"img\" viewbox=\"0 0 900 230\"><path d=\"M20 120 H880\" fill=\"none\" stroke=\"#9aa0a6\" stroke-width=\"6\"><\/path><path d=\"M70 120 V40 H760 V120\" fill=\"none\" stroke=\"#9aa0a6\" stroke-dasharray=\"2 0\" stroke-width=\"4\"><\/path><path d=\"M865 120 l14 0 -10 -7 m10 7 -10 7\" fill=\"none\" stroke=\"#1e2123\" stroke-width=\"3\"><\/path><g><path d=\"M415 40 l-14 -10 v20 z M415 40 l14 -10 v20 z\" fill=\"#fff\" stroke=\"#1e2123\" stroke-width=\"2\"><\/path><line stroke=\"#1e2123\" stroke-width=\"2\" x1=\"415\" x2=\"415\" y1=\"40\" y2=\"22\"><\/line><rect fill=\"#1e2123\" height=\"4\" width=\"16\" x=\"407\" y=\"18\"><\/rect><circle cx=\"415\" cy=\"72\" fill=\"#1e2123\" r=\"11\"><\/circle><text fill=\"#fff\" font-family=\"Montserrat,Arial\" font-size=\"12\" font-weight=\"700\" text-anchor=\"middle\" x=\"415\" y=\"76\">1b<\/text><\/g><g><path d=\"M130 120 l-14 -10 v20 z M130 120 l14 -10 v20 z\" fill=\"#fff\" stroke=\"#1e2123\" stroke-width=\"2\"><\/path><line stroke=\"#1e2123\" stroke-width=\"2\" x1=\"130\" x2=\"130\" y1=\"120\" y2=\"102\"><\/line><rect fill=\"#1e2123\" height=\"4\" width=\"16\" x=\"122\" y=\"98\"><\/rect><circle cx=\"130\" cy=\"152\" fill=\"#1e2123\" r=\"11\"><\/circle><text fill=\"#fff\" font-family=\"Montserrat,Arial\" font-size=\"12\" font-weight=\"700\" text-anchor=\"middle\" x=\"130\" y=\"156\">1<\/text><\/g><g><rect fill=\"#fff\" height=\"36\" rx=\"4\" stroke=\"#1e2123\" stroke-width=\"2\" width=\"60\" x=\"195\" y=\"102\"><\/rect><circle cx=\"225\" cy=\"160\" fill=\"#1e2123\" r=\"11\"><\/circle><text fill=\"#fff\" font-family=\"Montserrat,Arial\" font-size=\"12\" font-weight=\"700\" text-anchor=\"middle\" x=\"225\" y=\"164\">2<\/text><\/g><path d=\"M205 112 h40 M205 120 h40 M205 128 h40\" stroke=\"#1e2123\" stroke-width=\"1.5\"><\/path><g><line stroke=\"#1e2123\" stroke-width=\"2\" x1=\"300\" x2=\"300\" y1=\"116\" y2=\"90\"><\/line><circle cx=\"300\" cy=\"77\" fill=\"#fff\" r=\"13\" stroke=\"#1e2123\" stroke-width=\"2\"><\/circle><line stroke=\"#e6305d\" stroke-width=\"2\" x1=\"300\" x2=\"307\" y1=\"77\" y2=\"70\"><\/line><circle cx=\"324\" cy=\"64\" fill=\"#1e2123\" r=\"11\"><\/circle><text fill=\"#fff\" font-family=\"Montserrat,Arial\" font-size=\"12\" font-weight=\"700\" text-anchor=\"middle\" x=\"324\" y=\"68\">3<\/text><\/g><g><rect fill=\"#fdecf1\" height=\"68\" rx=\"4\" stroke=\"#e6305d\" stroke-width=\"2\" width=\"110\" x=\"360\" y=\"86\"><\/rect><circle cx=\"415\" cy=\"176\" fill=\"#e6305d\" r=\"11\"><\/circle><text fill=\"#fff\" font-family=\"Montserrat,Arial\" font-size=\"12\" font-weight=\"700\" text-anchor=\"middle\" x=\"415\" y=\"180\">4<\/text><\/g><path d=\"M392 120 h46 l-10 -8 m10 8 -10 8\" fill=\"none\" stroke=\"#e6305d\" stroke-width=\"2.5\"><\/path><g><rect fill=\"#fff\" height=\"34\" rx=\"4\" stroke=\"#1e2123\" stroke-width=\"2\" width=\"26\" x=\"610\" y=\"68\"><\/rect><circle cx=\"623\" cy=\"124\" fill=\"#1e2123\" r=\"11\"><\/circle><text fill=\"#fff\" font-family=\"Montserrat,Arial\" font-size=\"12\" font-weight=\"700\" text-anchor=\"middle\" x=\"623\" y=\"128\">5<\/text><\/g><path d=\"M623 102 V117\" stroke=\"#1e2123\" stroke-width=\"2\"><\/path><g><line stroke=\"#1e2123\" stroke-width=\"2\" x1=\"690\" x2=\"690\" y1=\"116\" y2=\"90\"><\/line><circle cx=\"690\" cy=\"77\" fill=\"#fff\" r=\"13\" stroke=\"#1e2123\" stroke-width=\"2\"><\/circle><line stroke=\"#e6305d\" stroke-width=\"2\" x1=\"690\" x2=\"697\" y1=\"77\" y2=\"70\"><\/line><circle cx=\"714\" cy=\"64\" fill=\"#1e2123\" r=\"11\"><\/circle><text fill=\"#fff\" font-family=\"Montserrat,Arial\" font-size=\"12\" font-weight=\"700\" text-anchor=\"middle\" x=\"714\" y=\"68\">6<\/text><\/g><g><path d=\"M800 120 l-14 -10 v20 z M800 120 l14 -10 v20 z\" fill=\"#fff\" stroke=\"#1e2123\" stroke-width=\"2\"><\/path><line stroke=\"#1e2123\" stroke-width=\"2\" x1=\"800\" x2=\"800\" y1=\"120\" y2=\"102\"><\/line><rect fill=\"#1e2123\" height=\"4\" width=\"16\" x=\"792\" y=\"98\"><\/rect><circle cx=\"800\" cy=\"152\" fill=\"#1e2123\" r=\"11\"><\/circle><text fill=\"#fff\" font-family=\"Montserrat,Arial\" font-size=\"12\" font-weight=\"700\" text-anchor=\"middle\" x=\"800\" y=\"156\">1a<\/text><\/g><\/svg><\/p><\/div><div class=\"wp-block-group vf-t-figcaption is-layout-flow wp-block-group-is-layout-flow\"><ol class=\"wp-block-list\"><li>V\u00e0lvules de tall (1, 1a) i de bypass (1b)<\/li><li>Filtre<\/li><li>Man\u00f2metre d'entrada<\/li><li>Reductora M1<\/li><li>V\u00e0lvula de seguretat<\/li><li>Man\u00f2metre de sortida<\/li><\/ol><\/div><\/div><h3 class=\"wp-block-heading\">Muntatge i posada en marxa<\/h3><ol class=\"vf-steps wp-block-list\"><li><b>Netegi la canonada<\/b> i munti un filtre colador aig\u00fces amunt per protegir el tancament.<\/li><li><b>Munti la v\u00e0lvula en canonada horitzontal<\/b>, segons la fletxa del cos. Si hi ha condensats, doni a la canonada un lleuger pendent descendent.<\/li><li><b>Orienti l'actuador cap avall<\/b>, la posici\u00f3 est\u00e0ndard. Cap amunt nom\u00e9s amb gasos i l\u00edquids fins a 80 \u00b0C; mai en horitzontal.<\/li><li><b>Subjecti la canonada<\/b> a prop de les brides, mai la v\u00e0lvula ni l'actuador.<\/li><li><b>Connecti la canonada de comandament<\/b> (tub de 10 \u00d7 1 mm) a la zona de pressi\u00f3 redu\u00efda, a 1 m com a m\u00ednim de la sortida, o al distribu\u00efdor si n'hi ha. Si la v\u00e0lvula oscil\u00b7la, afegeixi-hi una v\u00e0lvula d'agulla.<\/li><li><b>Amb vapor o m\u00e9s de 125 \u00b0C, instal\u00b7li el barrilet<\/b> al punt m\u00e9s alt, connectat lateralment i amb un lleuger pendent cap a la canonada. Ompli'l d'aigua fins a vessar i tanqui el tap.<\/li><li><b>Connecti el bypass<\/b> per darrere de la presa de pressi\u00f3 i obri a poc a poc les v\u00e0lvules de tall per evitar cops d'ariet.<\/li><li><b>Ajusti la pressi\u00f3 de sortida<\/b> amb la femella de regulaci\u00f3: en comprimir les molles (sentit horari) augmenta; en descomprimir-les, disminueix.<\/li><\/ol><p class=\"wp-block-paragraph\">La instal\u00b7laci\u00f3 l'ha de fer personal especialitzat. En zones ATEX, asseguri la conductivitat el\u00e8ctrica entre la v\u00e0lvula i la instal\u00b7laci\u00f3. Si la pressi\u00f3 oscil\u00b7la, repassi els problemes m\u00e9s habituals de les reductores.<\/p><\/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 M1<\/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>Fitxa t\u00e8cnica M1<\/b><span>PDF \u00b7 8 p\u00e0gines \u00b7 caracter\u00edstiques, especejament, dimensions i instal\u00b7laci\u00f3<\/span><\/p><\/div><p class=\"vf-enllac wp-block-paragraph\"><a class=\"vf-enllac-estirat\" href=\"\/wp-content\/uploads\/2026\/10\/M1-15A-ESP.pdf\" aria-label=\"PDF Fitxa t\u00e8cnica M1 PDF \u00b7 8 p\u00e0gines \u00b7 caracter\u00edstiques, especejament, dimensions i instal\u00b7laci\u00f3\" rel=\"noopener\" target=\"_blank\"><\/a><\/p><\/div><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>Manual de funcionament i instal\u00b7laci\u00f3<\/b><span>PDF \u00b7 17 p\u00e0gines \u00b7 muntatge, ATEX, avaries i desmuntatge<\/span><\/p><\/div><p class=\"vf-enllac wp-block-paragraph\"><a class=\"vf-enllac-estirat\" href=\"\/wp-content\/uploads\/2026\/10\/manual-M1-15B-ESP.pdf\" aria-label=\"PDF Manual de funcionament i instal\u00b7laci\u00f3 PDF \u00b7 17 p\u00e0gines \u00b7 muntatge, ATEX, avaries i desmuntatge\" rel=\"noopener\" target=\"_blank\"><\/a><\/p><\/div><\/div><p class=\"wp-block-paragraph\">Documentaci\u00f3 de comanda i ATEX: consulti els nostres <a href=\"https:\/\/www.valfonta.com\/ca\/certificats\/\">certificats de qualitat<\/a>.<\/p><\/section><section id=\"comparar\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">La M1 comparada amb altres reductores de Valfonta<\/h2><p class=\"wp-block-paragraph\">La M1 \u00e9s l'\u00fanica reductora de la gamma que arriba a DN150 i a 220 \u00b0C. Comprovi si li conv\u00e9 un altre model.<\/p><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\">Model<\/th><th scope=\"col\">DN<\/th><th scope=\"col\">PN<\/th><th scope=\"col\">Entrada m\u00e0x. (barg)<\/th><th scope=\"col\">Sortida (barg)<\/th><th scope=\"col\">T. m\u00e0x. (\u00b0C)<\/th><th scope=\"col\">Vapor<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\"><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv30\/\">PRV30<\/a><\/th><td>15 \u2013 25<\/td><td>25<\/td><td>25<\/td><td>0,5 \u2013 12<\/td><td>80 (125\u2013150)<\/td><td>No<\/td><\/tr><tr><th scope=\"row\"><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv20\/\">PRV20<\/a><\/th><td>8 \u2013 20<\/td><td>40<\/td><td>40<\/td><td>0,2 \u2013 20<\/td><td>150<\/td><td>No<\/td><\/tr><tr><th scope=\"row\"><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-model-prv44\/\">PRV44<\/a><\/th><td>15 \u2013 25<\/td><td>25<\/td><td>25<\/td><td>0,5 \u2013 12<\/td><td>210<\/td><td>S\u00ed<\/td><\/tr><tr><th scope=\"row\"><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-model-prv45\/\">PRV45<\/a><\/th><td>15 \u2013 25<\/td><td>25<\/td><td>16<\/td><td>0,01 \u2013 8<\/td><td>150<\/td><td>S\u00ed<\/td><\/tr><tr><th scope=\"row\"><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-model-vd\/\">VD<\/a><\/th><td>15 \u2013 100<\/td><td>40<\/td><td>40<\/td><td>1,5 \u2013 16<\/td><td>200<\/td><td>S\u00ed<\/td><\/tr><tr><th scope=\"row\"><span class=\"vf-dato vf-dato-fila\" hidden data-vf-class=\"vf-cur\"><\/span>M1<\/th><td>15 \u2013 150<\/td><td>40<\/td><td>40<\/td><td>0,1 \u2013 15<\/td><td>220<\/td><td>S\u00ed<\/td><\/tr><tr><th scope=\"row\"><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio\/\">M2<\/a><\/th><td>15 \u2013 100<\/td><td>40<\/td><td>40<\/td><td>0,02 \u2013 10<\/td><td>180<\/td><td>S\u00ed<\/td><\/tr><\/tbody><\/table><\/figure><\/div><p class=\"vf-note wp-block-paragraph\">Temperatura entre par\u00e8ntesis: amb juntes EPDM o Viton. Dades del cat\u00e0leg general de reductores de Valfonta (2025).<\/p><\/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 M1<\/h2><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Es pot utilitzar la M1 amb vapor?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">S\u00ed, fins a 220 \u00b0C, amb membrana d'EPDM+PTFE i tanc de condensaci\u00f3 a la canonada de comandament. Amb membrana d'EPDM, el l\u00edmit \u00e9s de 125 \u00b0C.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Quan cal el tanc de condensaci\u00f3?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">Amb vapor i amb l\u00edquids a m\u00e9s de 125 \u00b0C. El barrilet, ple d'aigua, protegeix la membrana del sobreescalfament i va sempre al punt m\u00e9s alt de la canonada.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Quina pressi\u00f3 de sortida es pot ajustar?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">De 0,1 a 15 barg, en cinc rangs, cadascun amb el seu actuador. L'entrada admet 40 barg fins a DN50 i 25 barg a partir de DN65. Vegi com es regula una reductora.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Qu\u00e8 faig si la pressi\u00f3 oscil\u00b7la amb cabals baixos?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">Si el salt de pressi\u00f3 \u00e9s molt gran, munti dues reductores en s\u00e8rie. Comprovi tamb\u00e9 que la presa de comandament sigui a 1 m com a m\u00ednim i, si \u00e9s massa gran, canvi\u00ef el tub de 10 \u00d7 1 per un de 6 \u00d7 4.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Quin manteniment necessita?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">Revisi peri\u00f2dicament les juntes i les peces de desgast, amb la v\u00e0lvula instal\u00b7lada, despressuritzada i a\u00efllada. Per a recanvis, indiqui el n\u00famero de s\u00e8rie de la placa.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Es pot instal\u00b7lar en una zona ATEX?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">S\u00ed. T\u00e9 marcatge ATEX II 2 GD (certificat LOM 14.034 U) per a zones 1, 2, 21 i 22, segons la classe t\u00e8rmica del fluid. M\u00e9s informaci\u00f3 a v\u00e0lvules ATEX.<\/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 models de v\u00e0lvules reductores de pressi\u00f3<\/h2><ul class=\"vf-rel wp-block-list\"><li><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-amb-manxa\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-M2F.jpg\" alt=\"Reductora amb manxa M2F\" class=\"wp-image-209\" width=\"300\" height=\"300\" loading=\"lazy\"><b>Reductora amb manxa M2F<\/b><span>DN15\u201350 i vapor fins a 200 \u00b0C sense barrilet.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-M2-PROVISIONAL-700x700-1.jpg\" alt=\"Reductora de membrana M2\" class=\"wp-image-193\" width=\"300\" height=\"300\" loading=\"lazy\"><b>Reductora de membrana M2<\/b><span>DN15\u2013100 i sortides des de 0,02 barg.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-model-prv44\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-PRV30-44.jpg\" alt=\"Reductora PRV44\" class=\"wp-image-207\" width=\"300\" height=\"300\" loading=\"lazy\"><b>Reductora PRV44<\/b><span>DN15\u201325, vapor fins a 210 \u00b0C.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-model-prv45\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-PRV45-55-700x700-1.jpg\" alt=\"Reductora PRV45\" class=\"wp-image-191\" width=\"300\" height=\"300\" loading=\"lazy\"><b>Reductora PRV45<\/b><span>Sortides des de 0,01 barg i vapor.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-model-vd\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-reductora-presion-vd-perspectiva-400.webp\" alt=\"Reductora VD\" class=\"wp-image-10116\" width=\"300\" height=\"300\" loading=\"lazy\"><b>Reductora VD<\/b><span>DN15\u2013100, 40 bar i vapor fins a 200 \u00b0C.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv30\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-reductora-presion-prv30-frontal-400.webp\" alt=\"Reductora PRV30\" class=\"wp-image-199\" width=\"300\" height=\"300\" loading=\"lazy\"><b>Reductora PRV30<\/b><span>Inox 316L, DN15\u201325.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv20\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-PRV20-FOTO.jpg\" alt=\"Reductora PRV20\" class=\"wp-image-215\" width=\"300\" height=\"300\" loading=\"lazy\"><b>Reductora PRV20<\/b><span>Inox 316L, DN8\u201320 i 40 bar.<\/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 M1<\/h2><p class=\"wp-block-paragraph\">Indiqui'ns les dades de la seva instal\u00b7laci\u00f3 i li recomanarem el di\u00e0metre, l'actuador i si necessita tanc de condensaci\u00f3.<\/p><ul class=\"wp-block-list\"><li>Fluid i temperatura de servei<\/li><li>Pressi\u00f3 d'entrada i de sortida desitjada<\/li><li>Cabal m\u00e0xim i m\u00ednim<\/li><li>Di\u00e0metre, connexi\u00f3 i material del cos<\/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-f594-o1\" lang=\"ca\" dir=\"ltr\" data-wpcf7-id=\"594\">\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\/793#wpcf7-f594-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=\"594\" \/><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-f594-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=\"1792703048.ce54439e1276436b\" \/>\n<\/fieldset>\n<input class=\"wpcf7-form-control wpcf7-hidden\" value=\"M1\" 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=\"DN15 (\u00bd\u2033)\">DN15 (\u00bd\u2033)<\/option><option value=\"DN20 (\u00be\u2033)\">DN20 (\u00be\u2033)<\/option><option value=\"DN25 (1\u2033)\">DN25 (1\u2033)<\/option><option value=\"DN32\">DN32<\/option><option value=\"DN40\">DN40<\/option><option value=\"DN50\">DN50<\/option><option value=\"DN65\">DN65<\/option><option value=\"DN80\">DN80<\/option><option value=\"DN100\">DN100<\/option><option value=\"DN125\">DN125<\/option><option value=\"DN150\">DN150<\/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=\"vapor, aire comprimit, aigua\u2026\" value=\"\" type=\"text\" name=\"fluido\" \/><\/span><\/label><label>Pressi\u00f3 d'entrada (barg)<span class=\"wpcf7-form-control-wrap\" data-name=\"p_entrada\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"p_entrada\" \/><\/span><\/label><label>Pressi\u00f3 de sortida desitjada (barg)<span class=\"wpcf7-form-control-wrap\" data-name=\"p_salida\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"p_salida\" \/><\/span><\/label><label>Cabal<span class=\"wpcf7-form-control-wrap\" data-name=\"caudal\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"p. ex. 2 m\u00b3\/h\" value=\"\" type=\"text\" name=\"caudal\" \/><\/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 reductores de pressi\u00f3\u203aV\u00e0lvula reductora de pressi\u00f3 M1 V\u00e0lvula reductora de pressi\u00f3 \u00b7 Autoaccionada per membrana V\u00e0lvula reductora de pressi\u00f3 M1 Vapor fins a 220 \u00b0C Reductora autoaccionada de seient simple: la membrana controla la pressi\u00f3 de sortida i una manxa de doble capa d'acer inoxidable segella l'eix, sense energia auxiliar. Treballa amb vapor, aire ... <a title=\"V\u00e0lvula reductora de pressi\u00f3 M1\" class=\"read-more\" href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/\" aria-label=\"M\u00e9s informaci\u00f3 sobre V\u00e0lvula reductora de pressi\u00f3 M1\">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\u00e0lvula reductora de pressi\u00f3 M1 autoaccionada | Valfonta","rank_math_description":"Reductora de pressi\u00f3 M1 autoaccionada per membrana, amb manxa de doble capa. DN15 a DN150, entrada fins a 40 barg, sortida 0,1\u201315 barg, vapor a 220 \u00b0C.","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\/valvula-reductora-de-pressio-autoaccionada\/#webpage\",\"url\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/\",\"name\":\"V\u00e0lvula reductora de pressi\u00f3 M1 autoaccionada | Valfonta\",\"description\":\"Reductora de pressi\u00f3 M1 autoaccionada per membrana, amb manxa de doble capa. DN15 a DN150, entrada fins a 40 barg, sortida 0,1\u201315 barg, vapor a 220 \u00b0C.\",\"isPartOf\":{\"@id\":\"https:\/\/www.valfonta.com\/#website\"},\"about\":{\"@id\":\"https:\/\/www.valfonta.com\/#organization\"},\"inLanguage\":\"ca\",\"datePublished\":\"2020-02-04T13:29:09+02:00\",\"dateModified\":\"2026-03-19T14:49:30+02:00\",\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-M1-S1-3D-700x700-1.jpg\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/#breadcrumb\"},\"mainEntity\":{\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/#product\"}},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-M1-S1-3D-700x700-1.jpg\",\"url\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-M1-S1-3D-700x700-1.jpg\",\"width\":\"1000\",\"height\":\"1000\",\"caption\":\"V\u00e0lvula reductora de pressi\u00f3\",\"inLanguage\":\"ca\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Inici\",\"item\":\"https:\/\/www.valfonta.com\/ca\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"V\u00e0lvules reductores de pressi\u00f3\",\"item\":\"https:\/\/www.valfonta.com\/ca\/valvules-reductores-de-pressio\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"V\u00e0lvula reductora de pressi\u00f3 M1\",\"item\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/\"}]},{\"@type\":\"Product\",\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/#product\",\"name\":\"V\u00e0lvula reductora de pressi\u00f3 M1\",\"url\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/\",\"description\":\"Reductora autoaccionada de seient simple: la membrana controla la pressi\u00f3 de sortida i una manxa de doble capa d'acer inoxidable segella l'eix, sense energia auxiliar. Treballa amb vapor, aire comprimit, gasos neutres i l\u00edquids, de DN15 a DN150.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Valfonta\"},\"manufacturer\":{\"@id\":\"https:\/\/www.valfonta.com\/#organization\"},\"model\":\"M1\",\"image\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-M1-S1-3D-700x700-1.jpg\",\"material\":\"Bronze RG10, acer al carboni A216 WCB o acer inoxidable A351 CF3M\",\"additionalProperty\":[{\"@type\":\"PropertyValue\",\"name\":\"Tipus\",\"value\":\"Reductora autoaccionada de globus i seient simple, amb pressi\u00f3 de sortida compensada per membrana\"},{\"@type\":\"PropertyValue\",\"name\":\"Di\u00e0metres\",\"value\":\"DN15 a DN150\"},{\"@type\":\"PropertyValue\",\"name\":\"Connexions\",\"value\":\"Brides EN 1092 PN16 a PN40 \u00b7 Brides ANSI 150\/300 \u00b7 Rosca BSP o NPT (\u00bd\u2033 a 2\u2033)\"},{\"@type\":\"PropertyValue\",\"name\":\"Pressi\u00f3 nominal\",\"value\":\"PN16, PN25 o PN40 \u00b7 Classe 150 o 300\"},{\"@type\":\"PropertyValue\",\"name\":\"Pressi\u00f3 m\u00e0xima d'entrada\",\"value\":\"40 barg (DN15 a DN50) \u00b7 25 barg (DN65 a DN150)\"},{\"@type\":\"PropertyValue\",\"name\":\"Pressi\u00f3 diferencial m\u00e0xima\",\"value\":\"25 bar (DN15\u201350) \u00b7 20 bar (DN65\u201380) \u00b7 16 bar (DN100\u2013150)\"},{\"@type\":\"PropertyValue\",\"name\":\"Rangs de pressi\u00f3 de sortida\",\"value\":\"0,1\u20131,5 \u00b7 1\u20133 \u00b7 2\u20135 \u00b7 4\u20138 \u00b7 7\u201315 barg\"},{\"@type\":\"PropertyValue\",\"name\":\"Coeficient Kv\",\"value\":\"3,5 a 240 m\u00b3\/h segons el DN. Kv redu\u00eft sota comanda\"},{\"@type\":\"PropertyValue\",\"name\":\"Temperatura a l'actuador\",\"value\":\"Membrana EPDM: \u221240 a 125 \u00b0C \u00b7 EPDM+PTFE amb tanc de condensaci\u00f3: fins a 220 \u00b0C\"},{\"@type\":\"PropertyValue\",\"name\":\"Obturador\",\"value\":\"PTFE grafitat de s\u00e8rie (220 \u00b0C). Tamb\u00e9 NBR (80 \u00b0C), PEEK, EPDM\u2026\"},{\"@type\":\"PropertyValue\",\"name\":\"Fluids\",\"value\":\"Vapor, aire comprimit, gasos neutres i l\u00edquids\"},{\"@type\":\"PropertyValue\",\"name\":\"Materials\",\"value\":\"Cos en bronze RG10, acer al carboni A216 WCB o inox A351 CF3M. Interiors en inox AISI 316L. Manxa de doble capa en AISI 316Ti\"},{\"@type\":\"PropertyValue\",\"name\":\"Presa de pressi\u00f3\",\"value\":\"Canonada de comandament externa, tub de 10 \u00d7 1 mm\"},{\"@type\":\"PropertyValue\",\"name\":\"Posici\u00f3 de muntatge\",\"value\":\"Canonada horitzontal, actuador cap avall (cap amunt nom\u00e9s amb gasos i l\u00edquids fins a 80 \u00b0C)\"},{\"@type\":\"PropertyValue\",\"name\":\"Directiva d'equips a pressi\u00f3\",\"value\":\"PED 2014\/68\/UE: la xapa indica si requereix marcatge CE\"},{\"@type\":\"PropertyValue\",\"name\":\"ATEX\",\"value\":\"II 2 GD c IIC Tx \/ c IIIC Tx\u00baC \u00b7 certificat LOM 14.034 U\"},{\"@type\":\"PropertyValue\",\"name\":\"Sota comanda\",\"value\":\"Interiors de Monel o bronze \u00b7 presa de pressi\u00f3 al cos (ajustos de m\u00e9s d'1 bar) \u00b7 cos d\u00faplex o superd\u00faplex \u00b7 extrems soldables\"}],\"category\":\"V\u00e0lvules reductores de pressi\u00f3\",\"subjectOf\":[{\"@type\":\"DigitalDocument\",\"name\":\"Fitxa t\u00e8cnica M1\",\"url\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/M1-15A-ESP.pdf\",\"encodingFormat\":\"application\/pdf\"},{\"@type\":\"DigitalDocument\",\"name\":\"Manual de funcionament i instal\u00b7laci\u00f3\",\"url\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/manual-M1-15B-ESP.pdf\",\"encodingFormat\":\"application\/pdf\"}]},{\"@type\":\"FAQPage\",\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Es pot utilitzar la M1 amb vapor?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"S\u00ed, fins a 220 \u00b0C, amb membrana d'EPDM+PTFE i tanc de condensaci\u00f3 a la canonada de comandament. Amb membrana d'EPDM, el l\u00edmit \u00e9s de 125 \u00b0C.\"}},{\"@type\":\"Question\",\"name\":\"Quan cal el tanc de condensaci\u00f3?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Amb vapor i amb l\u00edquids a m\u00e9s de 125 \u00b0C. El barrilet, ple d'aigua, protegeix la membrana del sobreescalfament i va sempre al punt m\u00e9s alt de la canonada.\"}},{\"@type\":\"Question\",\"name\":\"Quina pressi\u00f3 de sortida es pot ajustar?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"De 0,1 a 15 barg, en cinc rangs, cadascun amb el seu actuador. L'entrada admet 40 barg fins a DN50 i 25 barg a partir de DN65. Vegi com es regula una reductora.\"}},{\"@type\":\"Question\",\"name\":\"Qu\u00e8 faig si la pressi\u00f3 oscil\u00b7la amb cabals baixos?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Si el salt de pressi\u00f3 \u00e9s molt gran, munti dues reductores en s\u00e8rie. Comprovi tamb\u00e9 que la presa de comandament sigui a 1 m com a m\u00ednim i, si \u00e9s massa gran, canvi\u00ef el tub de 10 \u00d7 1 per un de 6 \u00d7 4.\"}},{\"@type\":\"Question\",\"name\":\"Quin manteniment necessita?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Revisi peri\u00f2dicament les juntes i les peces de desgast, amb la v\u00e0lvula instal\u00b7lada, despressuritzada i a\u00efllada. Per a recanvis, indiqui el n\u00famero de s\u00e8rie de la placa.\"}},{\"@type\":\"Question\",\"name\":\"Es pot instal\u00b7lar en una zona ATEX?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"S\u00ed. T\u00e9 marcatge ATEX II 2 GD (certificat LOM 14.034 U) per a zones 1, 2, 21 i 22, segons la classe t\u00e8rmica del fluid. M\u00e9s informaci\u00f3 a v\u00e0lvules ATEX.\"}}]}]}]"},"product_brand":[],"product_cat":[80],"product_tag":[],"class_list":["post-793","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\/793","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=793"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/product_brand?post=793"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/product_cat?post=793"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/product_tag?post=793"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}