{"id":795,"date":"2026-10-02T13:17:49","date_gmt":"2026-10-02T11:17:49","guid":{"rendered":"https:\/\/www.valfonta.com\/producto\/valvula-reductora-de-pressio-a-pisto-model-prv30\/"},"modified":"2026-10-22T09:23:47","modified_gmt":"2026-10-22T07:23:47","slug":"valvula-reductora-de-pressio-a-pisto-model-prv30","status":"publish","type":"product","link":"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv30\/","title":{"rendered":"V\u00e0lvula reductora de pressi\u00f3 PRV30"},"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 PRV30<\/span><\/p><\/nav><article class=\"wp-block-group vf-pdp vfd-model--PRV30 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 Acci\u00f3 directa<\/p><h1 class=\"wp-block-heading\">V\u00e0lvula reductora de pressi\u00f3 PRV30<\/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\">Inox 316L<\/span><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-reductora-presion-prv30-frontal.webp\" alt=\"V\u00e0lvula reductora de pressi\u00f3 PRV30 d&#x27;acer inoxidable AISI 316L, vista frontal\" class=\"wp-image-216\" width=\"900\" height=\"900\" 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\">Reductora autoregulada i equilibrada per pist\u00f3, fabricada \u00edntegrament en acer inoxidable AISI 316L. Mant\u00e9 constant la pressi\u00f3 de sortida encara que oscil\u00b7li la d'entrada, en aigua, aire comprimit i gasos neutres, fins a 25 bar.<\/p><ul class=\"vf-pdp-keys wp-block-list\"><li><span>Di\u00e0metres<\/span><b>DN15 a DN25<\/b><\/li><li><span>Pressi\u00f3 nominal<\/span><b>PN25<\/b><\/li><li><span>Pressi\u00f3 d'entrada<\/span><b>fins a 25 barg<\/b><\/li><li><span>Pressi\u00f3 de sortida<\/span><b>0,5 a 12 barg<\/b><\/li><li><span>Temperatura<\/span><b>\u221230 a 150 \u00b0C <small>segons les juntes<\/small><\/b><\/li><li><span>Kv<\/span><b>2 a 3,5 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\/PRV30-16B-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>Sense manteniment peri\u00f2dic<\/li><li>Recanvis originals disponibles<\/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 PRV30<\/h2><p class=\"wp-block-paragraph\">La <strong>PRV30<\/strong> \u00e9s una <a href=\"https:\/\/www.valfonta.com\/ca\/valvules-reductores-de-pressio\/\">v\u00e0lvula reductora de pressi\u00f3<\/a> d'acci\u00f3 directa: no necessita energia auxiliar ni l\u00ednia de pilotatge. El mateix fluid i una molla de regulaci\u00f3 equilibren el pist\u00f3, de manera que la pressi\u00f3 aig\u00fces avall es mant\u00e9 en el valor ajustat encara que la pressi\u00f3 d'entrada pugi o baixi.<\/p><p class=\"wp-block-paragraph\">Com que el cos, el caputx\u00f3 i tots els interiors s\u00f3n d'<strong>acer inoxidable AISI 316L<\/strong>, \u00e9s una opci\u00f3 habitual en instal\u00b7lacions on la corrosi\u00f3 o la netedat del fluid s\u00f3n cr\u00edtiques. El seu disseny interior permet una circulaci\u00f3 efica\u00e7 del fluid i no requereix un manteniment peri\u00f2dic.<\/p><ul class=\"vf-pdp-apps wp-block-list\"><li><b>Laboratoris qu\u00edmics<\/b><span>Alimentaci\u00f3 d'equips i bancs d'assaig amb pressi\u00f3 estable.<\/span><\/li><li><b>Plantes sanit\u00e0ries<\/b><span>Xarxes d'aigua i fluids en qu\u00e8 s'exigeix acer inoxidable.<\/span><\/li><li><b>Aire comprimit<\/b><span>Reducci\u00f3 de la pressi\u00f3 de xarxa al valor de treball de cada m\u00e0quina.<\/span><\/li><li><b>Sistemes de ruixadors<\/b><span>Estabilitzaci\u00f3 de la pressi\u00f3 en instal\u00b7lacions d'aigua contra incendis.<\/span><\/li><li><b>Xarxes d'aigua<\/b><span>Protecci\u00f3 d'equips i consums davant de pics de pressi\u00f3.<\/span><\/li><li><b>Gasos neutres<\/b><span>Gasos del grup 2, com el nitrogen, en l\u00ednies de di\u00e0metre petit.<\/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 PRV30 si\u2026<\/h3><ul class=\"vf-si wp-block-list\"><li>Treballa amb aigua, oli, aire comprimit o gasos neutres (grup 2).<\/li><li>Necessita di\u00e0metres petits, de DN15 a DN25, i fins a 25 bar d'entrada.<\/li><li>El cos i els interiors han de ser d'acer inoxidable 316L.<\/li><li>Busca una v\u00e0lvula senzilla, sense pilotatge ni manteniment peri\u00f2dic.<\/li><\/ul><h3 class=\"wp-block-heading\">Millor un altre model si\u2026<\/h3><ul class=\"vf-no wp-block-list\"><li>Regula vapor: vegi la <a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-model-prv44\/\">PRV44<\/a> (fins a 210 \u00b0C) o la <a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/\">M1<\/a> (fins a 220 \u00b0C).<\/li><li>L'entrada supera els 25 bar: 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-model-vd\/\">VD<\/a> admeten fins a 40 bar.<\/li><li>Necessita m\u00e9s de DN25: la <a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-model-vd\/\">VD<\/a> arriba a DN100 i la M1, a DN150.<\/li><li>Requereix pressions de sortida molt baixes, per sota de 0,5 barg: vegi la <a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-model-prv45\/\">PRV45<\/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 PRV30<\/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 de pressi\u00f3 autoregulada, d'acci\u00f3 directa, equilibrada per pist\u00f3<\/td><\/tr><tr><th scope=\"row\">Di\u00e0metres<\/th><td>DN15 (\u00bd\u2033), DN20 (\u00be\u2033) i DN25 (1\u2033)<\/td><\/tr><tr><th scope=\"row\">Connexions<\/th><td>Rosca BSP o NPT \u00b7 Brides EN PN16\/25 \u00b7 Brides ANSI CL150<\/td><\/tr><tr><th scope=\"row\">Pressi\u00f3 nominal<\/th><td>PN25<\/td><\/tr><tr><th scope=\"row\">Pressi\u00f3 m\u00e0xima d'entrada<\/th><td>25 barg<\/td><\/tr><tr><th scope=\"row\">Rangs de pressi\u00f3 de sortida<\/th><td>0,5 \u2013 3 barg \u00b7 1 \u2013 8 barg \u00b7 4 \u2013 12 barg (segons la molla)<\/td><\/tr><tr><th scope=\"row\">Coeficient Kv<\/th><td>2 m\u00b3\/h (DN15) \u00b7 2,5 m\u00b3\/h (DN20) \u00b7 3,5 m\u00b3\/h (DN25). Kv redu\u00eft sota comanda<\/td><\/tr><tr><th scope=\"row\">Temperatura segons les juntes<\/th><td>NBR: \u221230 a +80 \u00b0C \u00b7 EPDM: \u221210 a +125 \u00b0C \u00b7 Viton: \u221210 a +150 \u00b0C<\/td><\/tr><tr><th scope=\"row\">Fluids<\/th><td>L\u00edquids i gasos del grup 2: aigua, oli, aire comprimit, gasos neutres<\/td><\/tr><tr><th scope=\"row\">Materials<\/th><td>Cos, caputx\u00f3 i interiors d'acer inoxidable AISI 316L (1.4404). Juntes de NBR de s\u00e8rie<\/td><\/tr><tr><th scope=\"row\">Posici\u00f3 de muntatge<\/th><td>Recomanada en canonada horitzontal; el disseny admet altres posicions<\/td><\/tr><tr><th scope=\"row\">Directiva d'equips a pressi\u00f3<\/th><td>PED 2014\/68\/UE, article 4.3: no 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>Cos i caputx\u00f3 en superd\u00faplex \u00b7 extrems per soldar (socket weld o butt weld) \u00b7 connexi\u00f3 clamp \u00b7 desgreixatge per a oxigen \u00b7 juntes EPDM, PEEK, Viton o Aflas<\/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\">\u00bd\u2033 rosca<\/th><th scope=\"col\">\u00be\u2033 rosca<\/th><th scope=\"col\">1\u2033 rosca<\/th><th scope=\"col\">DN15 EN<\/th><th scope=\"col\">DN20 EN<\/th><th scope=\"col\">DN25 EN<\/th><th scope=\"col\">DN15 ANSI<\/th><th scope=\"col\">DN20 ANSI<\/th><th scope=\"col\">DN25 ANSI<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">Kv (m\u00b3\/h)<\/th><td>2<\/td><td>2,5<\/td><td>3,5<\/td><td>2<\/td><td>2,5<\/td><td>3,5<\/td><td>2<\/td><td>2,5<\/td><td>3,5<\/td><\/tr><tr><th scope=\"row\">Longitud A \/ AA<\/th><td>108<\/td><td>108<\/td><td>108<\/td><td>130<\/td><td>150<\/td><td>160<\/td><td>184<\/td><td>184<\/td><td>184<\/td><\/tr><tr><th scope=\"row\">Al\u00e7ada H1<\/th><td>135<\/td><td>135<\/td><td>135<\/td><td>135<\/td><td>135<\/td><td>135<\/td><td>135<\/td><td>135<\/td><td>135<\/td><\/tr><tr><th scope=\"row\">Al\u00e7ada H2<\/th><td>185<\/td><td>185<\/td><td>185<\/td><td>185<\/td><td>185<\/td><td>185<\/td><td>185<\/td><td>185<\/td><td>185<\/td><\/tr><tr><th scope=\"row\">\u00d8 brida D1<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>95<\/td><td>105<\/td><td>115<\/td><td>89<\/td><td>98<\/td><td>108<\/td><\/tr><tr><th scope=\"row\">Pes (kg)<\/th><td>3,5<\/td><td>3,5<\/td><td>3,5<\/td><td>5<\/td><td>5<\/td><td>5<\/td><td>5<\/td><td>5<\/td><td>5<\/td><\/tr><\/tbody><\/table><\/figure><\/div><p class=\"vf-note wp-block-paragraph\">Mides en mil\u00b7l\u00edmetres. Els pl\u00e0nols acotats i la resta de cotes de brida s\u00f3n a la fitxa t\u00e8cnica en PDF.<\/p><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Especejament i materials (22 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>Acer inox. 1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">2<\/th><td>Cargol de tancament<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">3<\/th><td>Tancament<\/td><td>NBR<\/td><\/tr><tr><th scope=\"row\">4<\/th><td>Junta<\/td><td>PTFE<\/td><\/tr><tr><th scope=\"row\">5<\/th><td>Seient<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">6<\/th><td>Junta<\/td><td>PTFE<\/td><\/tr><tr><th scope=\"row\">7<\/th><td>Caputx\u00f3<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">8<\/th><td>Volandera de la molla<\/td><td>Acer ST-52<\/td><\/tr><tr><th scope=\"row\">9<\/th><td>Cargol de regulaci\u00f3<\/td><td>Acer inox. A2-70<\/td><\/tr><tr><th scope=\"row\">10<\/th><td>Molla de regulaci\u00f3<\/td><td>Acer 52SiCrNi5 amb pintura epoxi<\/td><\/tr><tr><th scope=\"row\">11<\/th><td>Pist\u00f3<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">12<\/th><td>Junta t\u00f2rica<\/td><td>NBR<\/td><\/tr><tr><th scope=\"row\">13<\/th><td>Junta<\/td><td>NBR<\/td><\/tr><tr><th scope=\"row\">14<\/th><td>Cargols (x4)<\/td><td>Acer inox. A2-70<\/td><\/tr><tr><th scope=\"row\">15<\/th><td>Junta t\u00f2rica<\/td><td>NBR<\/td><\/tr><tr><th scope=\"row\">16<\/th><td>Junta t\u00f2rica<\/td><td>NBR<\/td><\/tr><tr><th scope=\"row\">17<\/th><td>Eix<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">18<\/th><td>Guia del tancament<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">19<\/th><td>Molla de tancament<\/td><td>Acer inox. 302<\/td><\/tr><tr><th scope=\"row\">20<\/th><td>Guia del casquet<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">21<\/th><td>Tapa inferior<\/td><td>Acer inox. AISI 316<\/td><\/tr><tr><th scope=\"row\">22<\/th><td>Junta<\/td><td>NBR<\/td><\/tr><\/tbody><\/table><\/figure><\/div><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Recanvis recomanats<\/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\">Refer\u00e8ncia<\/th><th scope=\"col\">Descripci\u00f3<\/th><th scope=\"col\">Peces<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">PRV30.SP1<\/th><td>Kit de juntes i tancament<\/td><td>3, 6, 12, 13, 15, 16 i 22<\/td><\/tr><tr><th scope=\"row\">PRV30.SP2<\/th><td>Kit de juntes<\/td><td>6 i 22<\/td><\/tr><tr><th scope=\"row\">PRV30.SP3<\/th><td>Molles<\/td><td>10 i 19<\/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 PRV30<\/h2><p class=\"wp-block-paragraph\">La PRV30 funciona per equilibri de forces entre la molla de regulaci\u00f3 i la pressi\u00f3 de sortida, que actua sobre el pist\u00f3. No necessita aire, electricitat ni preses de pressi\u00f3 externes.<\/p><ol class=\"vf-steps wp-block-list\"><li><b>Tancament per la pressi\u00f3 d'entrada.<\/b> El fluid entra a la v\u00e0lvula i, per la difer\u00e8ncia de seccions, la pressi\u00f3 d'entrada tendeix a tancar-la.<\/li><li><b>Obertura amb la molla.<\/b> En comprimir la molla de regulaci\u00f3 amb el cargol superior, el conjunt de tancament (pist\u00f3, eix i tancament) se separa del seient i deixa passar el fluid.<\/li><li><b>Regulaci\u00f3.<\/b> La pressi\u00f3 de sortida empeny el pist\u00f3 en sentit contrari a la molla. Quan arriba al valor ajustat, la v\u00e0lvula s'equilibra i nom\u00e9s deixa passar el cabal que es consumeix.<\/li><li><b>Tancament amb consum zero.<\/b> Si es tanquen les v\u00e0lvules aig\u00fces avall, la PRV30 tanca, absorbeix les oscil\u00b7lacions i mant\u00e9 la pressi\u00f3 de sortida ajustada.<\/li><\/ol><\/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-PRV30-44-700x700-1.jpg\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/PRV30-VIDEO.mp4\"><\/video><\/figure><p class=\"vf-note vf-s-d43169 wp-block-paragraph\">V\u00eddeo del model PRV30.<\/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 PRV30<\/h2><p class=\"wp-block-paragraph\">Una reductora treballa b\u00e9 si la l\u00ednia est\u00e0 ben preparada. Aquest \u00e9s l'esquema recomanat pel fabricant, amb bypass per poder fer el manteniment sense aturar el servei. Si vol m\u00e9s detall, consulti la nostra guia sobre com instal\u00b7lar una v\u00e0lvula reductora de pressi\u00f3 i on es col\u00b7loca.<\/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><path d=\"M470 156 V198\" stroke=\"#1e2123\" stroke-dasharray=\"4 4\" stroke-width=\"2\"><\/path><path d=\"M620 150 V198\" stroke=\"#1e2123\" stroke-dasharray=\"4 4\" stroke-width=\"2\"><\/path><path d=\"M474 190 H616\" stroke=\"#1e2123\" stroke-width=\"2\"><\/path><path d=\"M474 190 l8 -5 v10 z M616 190 l-8 -5 v10 z\" fill=\"#1e2123\"><\/path><text fill=\"#1e2123\" font-family=\"Montserrat,Arial\" font-size=\"13\" text-anchor=\"middle\" x=\"545\" y=\"214\">0,5 \u2013 1 m<\/text><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 PRV30<\/li><li>V\u00e0lvula de seguretat, a 0,5\u20131 m de la reductora<\/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> abans de muntar la v\u00e0lvula: qualsevol resta o part\u00edcula pot danyar el tancament.<\/li><li><b>Instal\u00b7li un filtre colador<\/b> aig\u00fces amunt per protegir el pist\u00f3 i el seient.<\/li><li><b>Respecti la fletxa del cos<\/b> i, sempre que pugui, munti la v\u00e0lvula en una canonada horitzontal.<\/li><li><b>Subjecti la canonada, no la v\u00e0lvula:<\/b> els suports han d'anar tan a prop com sigui possible de la reductora, per\u00f2 sense fixar-los mai a ella.<\/li><li><b>Deixi entre 0,5 i 1 m<\/b> fins a la v\u00e0lvula de seguretat de sortida per a una millor compensaci\u00f3.<\/li><li><b>Posi en marxa a poc a poc:<\/b> obri lentament les v\u00e0lvules de tall per evitar cops d'ariet.<\/li><li><b>Ajusti la pressi\u00f3 de sortida<\/b> amb una clau Allen de 8 mm al cargol de regulaci\u00f3. En comprimir la molla augmenta la pressi\u00f3 de sortida; en descomprimir-la, disminueix. Comprovi el valor al man\u00f2metre de sortida.<\/li><\/ol><p class=\"wp-block-paragraph\">La v\u00e0lvula l'ha d'instal\u00b7lar personal qualificat, sense superar mai la pressi\u00f3 i la temperatura de servei per a les quals s'ha dimensionat. En zones ATEX cal assegurar l'equipotencialitat de la v\u00e0lvula amb la instal\u00b7laci\u00f3. Si la pressi\u00f3 de sortida no \u00e9s estable, 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 PRV30<\/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 PRV30<\/b><span>PDF \u00b7 4 p\u00e0gines \u00b7 caracter\u00edstiques, especejament i dimensions<\/span><\/p><\/div><p class=\"vf-enllac wp-block-paragraph\"><a class=\"vf-enllac-estirat\" href=\"\/wp-content\/uploads\/2026\/10\/PRV30-16B-ESP.pdf\" aria-label=\"PDF Fitxa t\u00e8cnica PRV30 PDF \u00b7 4 p\u00e0gines \u00b7 caracter\u00edstiques, especejament i dimensions\" 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 11 p\u00e0gines \u00b7 muntatge, ATEX, manteniment i recepci\u00f3<\/span><\/p><\/div><p class=\"vf-enllac wp-block-paragraph\"><a class=\"vf-enllac-estirat\" href=\"\/wp-content\/uploads\/2026\/10\/manual-PRV30-16D-ESP.pdf\" aria-label=\"PDF Manual de funcionament i instal\u00b7laci\u00f3 PDF \u00b7 11 p\u00e0gines \u00b7 muntatge, ATEX, manteniment i recepci\u00f3\" rel=\"noopener\" target=\"_blank\"><\/a><\/p><\/div><\/div><p class=\"wp-block-paragraph\">Necessita el certificat d'una comanda o la documentaci\u00f3 ATEX? Consulti els nostres <a href=\"https:\/\/www.valfonta.com\/ca\/certificats\/\">certificats de qualitat<\/a> o demani'l al nostre equip t\u00e8cnic.<\/p><\/section><section id=\"comparar\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">La PRV30 comparada amb altres reductores de Valfonta<\/h2><p class=\"wp-block-paragraph\">La gamma de reductores va des de DN8 fins a DN150. Aquesta taula l'ajuda a comprovar si la PRV30 \u00e9s el model adequat o si li conv\u00e9 un altre.<\/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\"><span class=\"vf-dato vf-dato-fila\" hidden data-vf-class=\"vf-cur\"><\/span>PRV30<\/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\"><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/\">M1<\/a><\/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 v\u00e0lvules reductores de Valfonta (2025). Si dubta entre pist\u00f3 i membrana, llegeixi la nostra comparativa de reductores de pist\u00f3 i de membrana.<\/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 PRV30<\/h2><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Es pot utilitzar la PRV30 amb vapor?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">No. La PRV30 est\u00e0 dissenyada per a l\u00edquids i gasos del grup 2: aigua, oli, aire comprimit i gasos neutres. Per a vapor, Valfonta fabrica la <a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-model-prv44\/\">PRV44<\/a>, que admet fins a 210 \u00b0C, i la <a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/\">M1<\/a>, fins a 220 \u00b0C.<\/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\">La pressi\u00f3 de sortida dep\u00e8n de la molla de regulaci\u00f3. Hi ha tres rangs: de 0,5 a 3 barg, d'1 a 8 barg i de 4 a 12 barg. La pressi\u00f3 d'entrada pot arribar a 25 barg.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Com s&#x27;ajusta la pressi\u00f3 de sortida de la PRV30?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">Amb una clau Allen de 8 mm al cargol de regulaci\u00f3. En comprimir la molla augmenta la pressi\u00f3 de sortida i en descomprimir-la disminueix. Faci l'ajust amb la instal\u00b7laci\u00f3 en servei i comprovi el valor al man\u00f2metre de sortida. Ho expliquem pas a pas a com es regula una v\u00e0lvula reductora de pressi\u00f3.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>En quina posici\u00f3 s&#x27;instal\u00b7la?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">Es recomana instal\u00b7lar-la en una canonada horitzontal, respectant la fletxa de sentit del flux del cos. El seu disseny interior admet altres posicions, tot i que el manual indica que alguna orientaci\u00f3, permesa, no \u00e9s la recomanada.<\/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\">No necessita manteniment peri\u00f2dic. Conv\u00e9 revisar les juntes i les peces de desgast amb una freq\u00fc\u00e8ncia que dep\u00e8n de les condicions de servei. El manteniment es pot fer amb la v\u00e0lvula instal\u00b7lada, sempre despressuritzada i a\u00efllada. Hi ha tres kits de recanvi: juntes i tancament (PRV30.SP1), juntes (PRV30.SP2) i molles (PRV30.SP3).<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>La PRV30 porta marcatge CE?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">No li cal. Pel seu di\u00e0metre (DN15 a DN25), la seva pressi\u00f3 nominal (PN25) i el tipus de fluid (grup 2), queda dins de l'article 4.3 de la Directiva d'equips a pressi\u00f3 2014\/68\/UE, que no exigeix marcatge CE.<\/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. La PRV30 t\u00e9 marcatge ATEX II 2 GD (certificat LOM 14.034 U) i es pot utilitzar en zones 1 i 2 (gasos, vapors i l\u00edquids inflamables) i 21 i 22 (pols combustible), dins de la classe t\u00e8rmica que correspongui a la temperatura del fluid.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Quin coeficient Kv t\u00e9?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">El Kv est\u00e0ndard \u00e9s de 2 m\u00b3\/h en DN15, 2,5 m\u00b3\/h en DN20 i 3,5 m\u00b3\/h en DN25. Sota comanda se subministra amb Kv redu\u00eft per a cabals petits.<\/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-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 i PN25 com la PRV30, per\u00f2 apta per a vapor fins a 210 \u00b0C.<\/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 fins a 40 bar d'entrada.<\/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.jpg\" alt=\"Reductora PRV45\" class=\"wp-image-208\" width=\"300\" height=\"300\" loading=\"lazy\"><b>Reductora PRV45<\/b><span>Sortides molt baixes, 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>De DN15 a DN100, fins a 40 bar i vapor fins a 200 \u00b0C.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-reductora-presion-m1-perspectiva-400.webp\" alt=\"Reductora M1\" class=\"wp-image-201\" width=\"300\" height=\"300\" loading=\"lazy\"><b>Reductora M1<\/b><span>Fins a DN150 i 220 \u00b0C, per a vapor.<\/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.jpg\" alt=\"Reductora de membrana M2\" class=\"wp-image-206\" width=\"300\" height=\"300\" loading=\"lazy\"><b>Reductora de membrana M2<\/b><span>DN15\u2013100, sortides des de 0,02 barg i vapor fins a 180 \u00b0C.<\/span><\/a><\/li><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 M2\" class=\"wp-image-209\" width=\"300\" height=\"300\" loading=\"lazy\"><b>Reductora amb manxa M2<\/b><span>Versi\u00f3 amb manxa d'estanquitat.<\/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 PRV30<\/h2><p class=\"wp-block-paragraph\">Indiqui'ns les dades de la seva instal\u00b7laci\u00f3 i li recomanarem el di\u00e0metre, el rang de molla i les juntes adequades.<\/p><ul class=\"wp-block-list\"><li>Fluid i temperatura de servei<\/li><li>Pressi\u00f3 d'entrada i pressi\u00f3 de sortida desitjada<\/li><li>Cabal m\u00e0xim i m\u00ednim<\/li><li>Tipus de 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-f596-o1\" lang=\"ca\" dir=\"ltr\" data-wpcf7-id=\"596\">\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\/795#wpcf7-f596-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=\"596\" \/><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-f596-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=\"1792703031.57bf1f3b76754ea1\" \/>\n<\/fieldset>\n<input class=\"wpcf7-form-control wpcf7-hidden\" value=\"PRV30\" 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=\"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=\"aigua, aire, nitrogen\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 PRV30 V\u00e0lvula reductora de pressi\u00f3 \u00b7 Acci\u00f3 directa V\u00e0lvula reductora de pressi\u00f3 PRV30 Inox 316L Reductora autoregulada i equilibrada per pist\u00f3, fabricada \u00edntegrament en acer inoxidable AISI 316L. Mant\u00e9 constant la pressi\u00f3 de sortida encara que oscil\u00b7li la d'entrada, en aigua, aire comprimit i gasos neutres, fins a ... <a title=\"V\u00e0lvula reductora de pressi\u00f3 PRV30\" class=\"read-more\" href=\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv30\/\" aria-label=\"M\u00e9s informaci\u00f3 sobre V\u00e0lvula reductora de pressi\u00f3 PRV30\">Llegiu m\u00e9s<\/a><\/p>\n","protected":false},"featured_media":216,"template":"","meta":{"_acf_changed":false,"_generate-full-width-content":"true","_generate-disable-headline":"true","rank_math_title":"V\u00e0lvula reductora de pressi\u00f3 PRV30 en inox 316L | Valfonta","rank_math_description":"Reductora de pressi\u00f3 PRV30 d'acci\u00f3 directa, equilibrada per pist\u00f3 i fabricada en acer inoxidable 316L. DN15 a DN25, PN25, sortida de 0,5 a 12 barg.","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-a-pisto-model-prv30\/#webpage\",\"url\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv30\/\",\"name\":\"V\u00e0lvula reductora de pressi\u00f3 PRV30 en inox 316L | Valfonta\",\"description\":\"Reductora de pressi\u00f3 PRV30 d'acci\u00f3 directa, equilibrada per pist\u00f3 i fabricada en acer inoxidable 316L. DN15 a DN25, PN25, sortida de 0,5 a 12 barg.\",\"isPartOf\":{\"@id\":\"https:\/\/www.valfonta.com\/#website\"},\"about\":{\"@id\":\"https:\/\/www.valfonta.com\/#organization\"},\"inLanguage\":\"ca\",\"datePublished\":\"2020-02-05T10:22:00+02:00\",\"dateModified\":\"2026-04-30T16:34:54+02:00\",\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-PRV30-44-700x700-1.jpg\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv30\/#breadcrumb\"},\"mainEntity\":{\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv30\/#product\"}},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-PRV30-44-700x700-1.jpg\",\"url\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-PRV30-44-700x700-1.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-a-pisto-model-prv30\/#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 PRV30\",\"item\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv30\/\"}]},{\"@type\":\"Product\",\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv30\/#product\",\"name\":\"V\u00e0lvula reductora de pressi\u00f3 PRV30\",\"url\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv30\/\",\"description\":\"Reductora autoregulada i equilibrada per pist\u00f3, fabricada \u00edntegrament en acer inoxidable AISI 316L. Mant\u00e9 constant la pressi\u00f3 de sortida encara que oscil\u00b7li la d'entrada, en aigua, aire comprimit i gasos neutres, fins a 25 bar.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Valfonta\"},\"manufacturer\":{\"@id\":\"https:\/\/www.valfonta.com\/#organization\"},\"model\":\"PRV30\",\"image\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-PRV30-44-700x700-1.jpg\",\"material\":\"Acer inoxidable AISI 316L\",\"additionalProperty\":[{\"@type\":\"PropertyValue\",\"name\":\"Tipus\",\"value\":\"Reductora de pressi\u00f3 autoregulada, d'acci\u00f3 directa, equilibrada per pist\u00f3\"},{\"@type\":\"PropertyValue\",\"name\":\"Di\u00e0metres\",\"value\":\"DN15 (\u00bd\u2033), DN20 (\u00be\u2033) i DN25 (1\u2033)\"},{\"@type\":\"PropertyValue\",\"name\":\"Connexions\",\"value\":\"Rosca BSP o NPT \u00b7 Brides EN PN16\/25 \u00b7 Brides ANSI CL150\"},{\"@type\":\"PropertyValue\",\"name\":\"Pressi\u00f3 nominal\",\"value\":\"PN25\"},{\"@type\":\"PropertyValue\",\"name\":\"Pressi\u00f3 m\u00e0xima d'entrada\",\"value\":\"25 barg\"},{\"@type\":\"PropertyValue\",\"name\":\"Rangs de pressi\u00f3 de sortida\",\"value\":\"0,5 \u2013 3 barg \u00b7 1 \u2013 8 barg \u00b7 4 \u2013 12 barg (segons la molla)\"},{\"@type\":\"PropertyValue\",\"name\":\"Coeficient Kv\",\"value\":\"2 m\u00b3\/h (DN15) \u00b7 2,5 m\u00b3\/h (DN20) \u00b7 3,5 m\u00b3\/h (DN25). Kv redu\u00eft sota comanda\"},{\"@type\":\"PropertyValue\",\"name\":\"Temperatura segons les juntes\",\"value\":\"NBR: \u221230 a +80 \u00b0C \u00b7 EPDM: \u221210 a +125 \u00b0C \u00b7 Viton: \u221210 a +150 \u00b0C\"},{\"@type\":\"PropertyValue\",\"name\":\"Fluids\",\"value\":\"L\u00edquids i gasos del grup 2: aigua, oli, aire comprimit, gasos neutres\"},{\"@type\":\"PropertyValue\",\"name\":\"Materials\",\"value\":\"Cos, caputx\u00f3 i interiors d'acer inoxidable AISI 316L (1.4404). Juntes de NBR de s\u00e8rie\"},{\"@type\":\"PropertyValue\",\"name\":\"Posici\u00f3 de muntatge\",\"value\":\"Recomanada en canonada horitzontal; el disseny admet altres posicions\"},{\"@type\":\"PropertyValue\",\"name\":\"Directiva d'equips a pressi\u00f3\",\"value\":\"PED 2014\/68\/UE, article 4.3: no 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\":\"Cos i caputx\u00f3 en superd\u00faplex \u00b7 extrems per soldar (socket weld o butt weld) \u00b7 connexi\u00f3 clamp \u00b7 desgreixatge per a oxigen \u00b7 juntes EPDM, PEEK, Viton o Aflas\"}],\"category\":\"V\u00e0lvules reductores de pressi\u00f3\",\"subjectOf\":[{\"@type\":\"DigitalDocument\",\"name\":\"Fitxa t\u00e8cnica PRV30\",\"url\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/PRV30-16B-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-PRV30-16D-ESP.pdf\",\"encodingFormat\":\"application\/pdf\"}]},{\"@type\":\"FAQPage\",\"@id\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-reductora-de-pressio-a-pisto-model-prv30\/#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Es pot utilitzar la PRV30 amb vapor?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. La PRV30 est\u00e0 dissenyada per a l\u00edquids i gasos del grup 2: aigua, oli, aire comprimit i gasos neutres. Per a vapor, Valfonta fabrica la PRV44, que admet fins a 210 \u00b0C, i la M1, fins a 220 \u00b0C.\"}},{\"@type\":\"Question\",\"name\":\"Quina pressi\u00f3 de sortida es pot ajustar?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"La pressi\u00f3 de sortida dep\u00e8n de la molla de regulaci\u00f3. Hi ha tres rangs: de 0,5 a 3 barg, d'1 a 8 barg i de 4 a 12 barg. La pressi\u00f3 d'entrada pot arribar a 25 barg.\"}},{\"@type\":\"Question\",\"name\":\"Com s'ajusta la pressi\u00f3 de sortida de la PRV30?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Amb una clau Allen de 8 mm al cargol de regulaci\u00f3. En comprimir la molla augmenta la pressi\u00f3 de sortida i en descomprimir-la disminueix. Faci l'ajust amb la instal\u00b7laci\u00f3 en servei i comprovi el valor al man\u00f2metre de sortida. Ho expliquem pas a pas a com es regula una v\u00e0lvula reductora de pressi\u00f3.\"}},{\"@type\":\"Question\",\"name\":\"En quina posici\u00f3 s'instal\u00b7la?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Es recomana instal\u00b7lar-la en una canonada horitzontal, respectant la fletxa de sentit del flux del cos. El seu disseny interior admet altres posicions, tot i que el manual indica que alguna orientaci\u00f3, permesa, no \u00e9s la recomanada.\"}},{\"@type\":\"Question\",\"name\":\"Quin manteniment necessita?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No necessita manteniment peri\u00f2dic. Conv\u00e9 revisar les juntes i les peces de desgast amb una freq\u00fc\u00e8ncia que dep\u00e8n de les condicions de servei. El manteniment es pot fer amb la v\u00e0lvula instal\u00b7lada, sempre despressuritzada i a\u00efllada. Hi ha tres kits de recanvi: juntes i tancament (PRV30.SP1), juntes (PRV30.SP2) i molles (PRV30.SP3).\"}},{\"@type\":\"Question\",\"name\":\"La PRV30 porta marcatge CE?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No li cal. Pel seu di\u00e0metre (DN15 a DN25), la seva pressi\u00f3 nominal (PN25) i el tipus de fluid (grup 2), queda dins de l'article 4.3 de la Directiva d'equips a pressi\u00f3 2014\/68\/UE, que no exigeix marcatge CE.\"}},{\"@type\":\"Question\",\"name\":\"Es pot instal\u00b7lar en una zona ATEX?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"S\u00ed. La PRV30 t\u00e9 marcatge ATEX II 2 GD (certificat LOM 14.034 U) i es pot utilitzar en zones 1 i 2 (gasos, vapors i l\u00edquids inflamables) i 21 i 22 (pols combustible), dins de la classe t\u00e8rmica que correspongui a la temperatura del fluid.\"}},{\"@type\":\"Question\",\"name\":\"Quin coeficient Kv t\u00e9?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"El Kv est\u00e0ndard \u00e9s de 2 m\u00b3\/h en DN15, 2,5 m\u00b3\/h en DN20 i 3,5 m\u00b3\/h en DN25. Sota comanda se subministra amb Kv redu\u00eft per a cabals petits.\"}}]}]}]"},"product_brand":[],"product_cat":[80],"product_tag":[],"class_list":["post-795","product","type-product","status-publish","has-post-thumbnail","product_cat-uncategorized","first","instock","shipping-taxable","purchasable","product-type-variable"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/product\/795","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:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/media\/216"}],"wp:attachment":[{"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/media?parent=795"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/product_brand?post=795"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/product_cat?post=795"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/product_tag?post=795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}