{"id":609,"date":"2026-10-02T13:17:49","date_gmt":"2026-10-02T11:17:49","guid":{"rendered":"https:\/\/www.valfonta.com\/producto\/pressure-reducing-valve-prv30\/"},"modified":"2026-10-22T09:22:20","modified_gmt":"2026-10-22T07:22:20","slug":"pressure-reducing-valve-prv30","status":"publish","type":"product","link":"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-prv30\/","title":{"rendered":"PRV30 pressure reducing valve"},"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--Breadcrumbs is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a href=\"\/en\/\">Home<\/a><span aria-hidden=\"true\" class=\"vf-sep\">\u203a<\/span><a href=\"https:\/\/www.valfonta.com\/en\/pressure-reducing-valves\/\">Pressure reducing valves<\/a><span aria-hidden=\"true\" class=\"vf-sep\">\u203a<\/span><span aria-current=\"page\">PRV30 pressure reducing valve<\/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\">Pressure reducing valve \u00b7 Direct-acting<\/p><h1 class=\"wp-block-heading\">PRV30 pressure reducing valve<\/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\">316L stainless<\/span><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-reductora-presion-prv30-frontal.webp\" alt=\"PRV30 pressure reducing valve in AISI 316L stainless steel, front view\" 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\">Self-regulating, piston-balanced reducing valve made entirely of AISI 316L stainless steel. It keeps the outlet pressure constant even when the inlet pressure fluctuates, in water, compressed air, and inert gases, up to 25 bar.<\/p><ul class=\"vf-pdp-keys wp-block-list\"><li><span>Sizes<\/span><b>DN15 to DN25<\/b><\/li><li><span>Pressure rating<\/span><b>PN25<\/b><\/li><li><span>Inlet pressure<\/span><b>up to 25 barg<\/b><\/li><li><span>Outlet pressure<\/span><b>0.5 to 12 barg<\/b><\/li><li><span>Temperature<\/span><b>\u221230 to 150 \u00b0C <small>depending on gaskets<\/small><\/b><\/li><li><span>Kv<\/span><b>2 to 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\">Request a quote<\/a><a class=\"vf-btn vf-btn--sec\" href=\"\/wp-content\/uploads\/2026\/10\/PRV30-16B-ESP.pdf\" rel=\"noopener\" target=\"_blank\">Download datasheet <small>PDF<\/small><\/a><\/p><\/div><p class=\"vf-pdp-contact wp-block-paragraph\">Questions about sizing? Call <a href=\"tel:+34933720888\">933 720 888<\/a> or email <a href=\"mailto:valfonta@valfonta.com\">valfonta@valfonta.com<\/a>.<\/p><\/div><\/div><ul class=\"vf-pdp-trust wp-block-list\"><li>In-house design and manufacturing in Badalona<\/li><li>ATEX II 2 GD marking for zones 1 and 21<\/li><li>No routine maintenance<\/li><li>Genuine spare parts available<\/li><\/ul><nav class=\"wp-block-group vf-pdp-nav vfa-aria-label--Datasheet%20contents is-layout-flow wp-block-group-is-layout-flow\"><ul class=\"wp-block-list\"><li><a href=\"#aplicaciones\">Applications<\/a><\/li><li><a href=\"#especificaciones\">Specifications<\/a><\/li><li><a href=\"#funcionamiento\">Operation<\/a><\/li><li><a href=\"#instalacion\">Installation<\/a><\/li><li><a href=\"#documentacion\">Documentation<\/a><\/li><li><a href=\"#comparar\">Compare<\/a><\/li><li><a href=\"#preguntas\">FAQ<\/a><\/li><li><a href=\"#solicitar\">Request a quote<\/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\">What the PRV30 is used for<\/h2><p class=\"wp-block-paragraph\">The <strong>PRV30<\/strong> is a direct-acting <a href=\"https:\/\/www.valfonta.com\/en\/pressure-reducing-valves\/\">pressure reducing valve<\/a>: it needs no auxiliary power or pilot line. The fluid itself and an adjusting spring balance the piston, so the downstream pressure stays at the set value even when the inlet pressure rises or falls.<\/p><p class=\"wp-block-paragraph\">Because the body, the cap, and all internals are made of <strong>AISI 316L stainless steel<\/strong>, it is a common choice in installations where corrosion or fluid cleanliness is critical. Its internal design allows efficient fluid flow, and it requires no routine maintenance.<\/p><ul class=\"vf-pdp-apps wp-block-list\"><li><b>Chemical laboratories<\/b><span>Supplying equipment and test benches with stable pressure.<\/span><\/li><li><b>Sanitary plants<\/b><span>Water and fluid networks where stainless steel is required.<\/span><\/li><li><b>Compressed air<\/b><span>Reducing the network pressure to the working pressure of each machine.<\/span><\/li><li><b>Sprinkler systems<\/b><span>Stabilizing the pressure in fire protection water installations.<\/span><\/li><li><b>Water networks<\/b><span>Protecting equipment and points of use against pressure peaks.<\/span><\/li><li><b>Inert gases<\/b><span>Group 2 gases, such as nitrogen, in small-diameter lines.<\/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\">Choose the PRV30 if\u2026<\/h3><ul class=\"vf-si wp-block-list\"><li>You work with water, oil, compressed air, or inert gases (Group 2).<\/li><li>You need small sizes, from DN15 to DN25, and up to 25 bar inlet pressure.<\/li><li>The body and internals must be 316L stainless steel.<\/li><li>You are looking for a simple valve, with no pilot and no routine maintenance.<\/li><\/ul><h3 class=\"wp-block-heading\">Choose another model if\u2026<\/h3><ul class=\"vf-no wp-block-list\"><li>You regulate steam: see the <a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-prv44\/\">PRV44<\/a> (up to 210 \u00b0C) or the <a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valves-m1\/\">M1<\/a> (up to 220 \u00b0C).<\/li><li>The inlet pressure exceeds 25 bar: the <a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-prv20\/\">PRV20<\/a> and the <a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-vd\/\">VD<\/a> accept up to 40 bar.<\/li><li>You need more than DN25: the <a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-vd\/\">VD<\/a> goes up to DN100 and the M1 up to DN150.<\/li><li>You need very low outlet pressures, below 0.5 barg: see the <a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-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\">PRV30 technical specifications<\/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\">Type<\/th><td>Self-regulating, direct-acting, piston-balanced pressure reducing valve<\/td><\/tr><tr><th scope=\"row\">Sizes<\/th><td>DN15 (\u00bd\u2033), DN20 (\u00be\u2033), and DN25 (1\u2033)<\/td><\/tr><tr><th scope=\"row\">Connections<\/th><td>BSP or NPT thread \u00b7 EN PN16\/25 flanges \u00b7 ANSI CL150 flanges<\/td><\/tr><tr><th scope=\"row\">Pressure rating<\/th><td>PN25<\/td><\/tr><tr><th scope=\"row\">Maximum inlet pressure<\/th><td>25 barg<\/td><\/tr><tr><th scope=\"row\">Outlet pressure ranges<\/th><td>0.5 \u2013 3 barg \u00b7 1 \u2013 8 barg \u00b7 4 \u2013 12 barg (depending on spring)<\/td><\/tr><tr><th scope=\"row\">Kv coefficient<\/th><td>2 m\u00b3\/h (DN15) \u00b7 2.5 m\u00b3\/h (DN20) \u00b7 3.5 m\u00b3\/h (DN25). Reduced Kv on request<\/td><\/tr><tr><th scope=\"row\">Temperature depending on gaskets<\/th><td>NBR: \u221230 to +80 \u00b0C \u00b7 EPDM: \u221210 to +125 \u00b0C \u00b7 Viton: \u221210 to +150 \u00b0C<\/td><\/tr><tr><th scope=\"row\">Fluids<\/th><td>Group 2 liquids and gases: water, oil, compressed air, inert gases<\/td><\/tr><tr><th scope=\"row\">Materials<\/th><td>Body, cap, and internals in AISI 316L stainless steel (1.4404). NBR gaskets as standard<\/td><\/tr><tr><th scope=\"row\">Mounting position<\/th><td>Recommended in a horizontal pipe; the design allows other positions<\/td><\/tr><tr><th scope=\"row\">Pressure Equipment Directive<\/th><td>PED 2014\/68\/EU, Article 4.3: CE marking not required<\/td><\/tr><tr><th scope=\"row\">ATEX<\/th><td>II 2 GD c IIC Tx \/ c IIIC Tx\u00baC \u00b7 certificate LOM 14.034 U<\/td><\/tr><tr><th scope=\"row\">On request<\/th><td>Body and cap in super duplex \u00b7 weld ends (socket weld or butt weld) \u00b7 clamp connection \u00b7 degreased for oxygen service \u00b7 EPDM, PEEK, Viton, or Aflas gaskets<\/td><\/tr><\/tbody><\/table><\/figure><\/div><h3 class=\"wp-block-heading\">Dimensions and weight<\/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 threaded<\/th><th scope=\"col\">\u00be\u2033 threaded<\/th><th scope=\"col\">1\u2033 threaded<\/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\">Length 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\">Height 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\">Height 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\">Flange \u00d8 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\">Weight (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\">Dimensions in millimeters. The dimensioned drawings and the remaining flange dimensions are in the PDF datasheet.<\/p><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Exploded view and materials (22 parts)<\/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\">No.<\/th><th scope=\"col\">Part<\/th><th scope=\"col\">Material<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">1<\/th><td>Body<\/td><td>Stainless steel 1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">2<\/th><td>Sealing screw<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">3<\/th><td>Seat<\/td><td>NBR<\/td><\/tr><tr><th scope=\"row\">4<\/th><td>Gasket<\/td><td>PTFE<\/td><\/tr><tr><th scope=\"row\">5<\/th><td>Seat<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">6<\/th><td>Gasket<\/td><td>PTFE<\/td><\/tr><tr><th scope=\"row\">7<\/th><td>Cap<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">8<\/th><td>Spring washer<\/td><td>Steel ST-52<\/td><\/tr><tr><th scope=\"row\">9<\/th><td>Adjusting screw<\/td><td>Stainless steel A2-70<\/td><\/tr><tr><th scope=\"row\">10<\/th><td>Adjusting spring<\/td><td>Steel 52SiCrNi5 with epoxy paint<\/td><\/tr><tr><th scope=\"row\">11<\/th><td>Piston<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">12<\/th><td>O-ring<\/td><td>NBR<\/td><\/tr><tr><th scope=\"row\">13<\/th><td>Gasket<\/td><td>NBR<\/td><\/tr><tr><th scope=\"row\">14<\/th><td>Screws (x4)<\/td><td>Stainless steel A2-70<\/td><\/tr><tr><th scope=\"row\">15<\/th><td>O-ring<\/td><td>NBR<\/td><\/tr><tr><th scope=\"row\">16<\/th><td>O-ring<\/td><td>NBR<\/td><\/tr><tr><th scope=\"row\">17<\/th><td>Stem<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">18<\/th><td>Seat guide<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">19<\/th><td>Closing spring<\/td><td>Stainless steel 302<\/td><\/tr><tr><th scope=\"row\">20<\/th><td>Bushing guide<\/td><td>1.4404 (316L)<\/td><\/tr><tr><th scope=\"row\">21<\/th><td>Bottom cover<\/td><td>Stainless steel AISI 316<\/td><\/tr><tr><th scope=\"row\">22<\/th><td>Gasket<\/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>Recommended spare parts<\/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\">Reference<\/th><th scope=\"col\">Description<\/th><th scope=\"col\">Parts<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">PRV30.SP1<\/th><td>Gasket and seat kit<\/td><td>3, 6, 12, 13, 15, 16 and 22<\/td><\/tr><tr><th scope=\"row\">PRV30.SP2<\/th><td>Gasket kit<\/td><td>6 and 22<\/td><\/tr><tr><th scope=\"row\">PRV30.SP3<\/th><td>Springs<\/td><td>10 and 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\">How the PRV30 works<\/h2><p class=\"wp-block-paragraph\">The PRV30 works by balancing the forces between the adjusting spring and the outlet pressure acting on the piston. It needs no air, electricity, or external pressure sensing points.<\/p><ol class=\"vf-steps wp-block-list\"><li><b>Closing by inlet pressure.<\/b> The fluid enters the valve and, due to the difference in areas, the inlet pressure tends to close it.<\/li><li><b>Opening with the spring.<\/b> When the adjusting spring is compressed with the top screw, the closing assembly (piston, stem, and seat disc) lifts off the seat and lets the fluid through.<\/li><li><b>Regulation.<\/b> The outlet pressure pushes the piston against the spring. When it reaches the set value, the valve balances and lets through only the flow being consumed.<\/li><li><b>Shutoff at zero demand.<\/b> If the downstream valves are closed, the PRV30 closes, absorbs the fluctuations, and holds the set outlet pressure.<\/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\">Video of the PRV30 model.<\/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\">PRV30 installation<\/h2><p class=\"wp-block-paragraph\">A reducing valve performs well if the line is properly prepared. This is the layout recommended by the manufacturer, with a bypass so that maintenance can be carried out without interrupting service. For more detail, see our guides on <a href=\"https:\/\/www.valfonta.com\/en\/blog\/how-to-install-pressure-reducing-valve\/\">how to install a pressure reducing valve<\/a> and <a href=\"https:\/\/www.valfonta.com\/en\/blog\/where-the-pressure-reducing-valve-is-placed\/\">where to install it<\/a>.<\/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=\"Recommended installation diagram of a pressure reducing valve, with 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>Shutoff valves (1, 1a) and bypass valve (1b)<\/li><li>Strainer<\/li><li>Inlet pressure gauge<\/li><li>PRV30 reducing valve<\/li><li>Safety valve, 0.5\u20131 m from the reducing valve<\/li><li>Outlet pressure gauge<\/li><\/ol><\/div><\/div><h3 class=\"wp-block-heading\">Installation and start-up<\/h3><ol class=\"vf-steps wp-block-list\"><li><b>Clean the pipe<\/b> before installing the valve: any debris or particle can damage the seat.<\/li><li><b>Install a strainer<\/b> upstream to protect the piston and the seat.<\/li><li><b>Follow the arrow on the body<\/b> and, whenever possible, install the valve in a horizontal pipe.<\/li><li><b>Support the pipe, not the valve:<\/b> supports should be as close as possible to the reducing valve, but never attached to it.<\/li><li><b>Leave 0.5 to 1 m<\/b> of pipe up to the outlet safety valve for better compensation.<\/li><li><b>Start up slowly:<\/b> open the shutoff valves gradually to avoid water hammer.<\/li><li><b>Adjust the outlet pressure<\/b> with an 8 mm Allen key on the adjusting screw. Compressing the spring raises the outlet pressure; releasing it lowers it. Check the value on the outlet pressure gauge.<\/li><\/ol><p class=\"wp-block-paragraph\">The valve must be installed by qualified personnel and must never exceed the operating pressure and temperature for which it was sized. In ATEX zones, the valve must be equipotentially bonded to the installation. If the outlet pressure is unstable, review the <a href=\"https:\/\/www.valfonta.com\/en\/blog\/pressure-reducing-valve-problems\/\">most common problems with reducing valves<\/a>.<\/p><\/section><section id=\"documentacion\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">PRV30 technical documentation<\/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>PRV30 datasheet<\/b><span>PDF \u00b7 4 pages \u00b7 features, exploded view, and 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 PRV30 datasheet PDF \u00b7 4 pages \u00b7 features, exploded view, and 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>Operation and installation manual<\/b><span>PDF \u00b7 11 pages \u00b7 installation, ATEX, maintenance, and receiving<\/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 Operation and installation manual PDF \u00b7 11 pages \u00b7 installation, ATEX, maintenance, and receiving\" rel=\"noopener\" target=\"_blank\"><\/a><\/p><\/div><\/div><p class=\"wp-block-paragraph\">Do you need an order certificate or the ATEX documentation? See our <a href=\"https:\/\/www.valfonta.com\/en\/certificates\/\">quality certificates<\/a> or request it from our technical team.<\/p><\/section><section id=\"comparar\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">PRV30 vs. other Valfonta reducing valves<\/h2><p class=\"wp-block-paragraph\">The reducing valve range covers DN8 to DN150. This table helps you check whether the PRV30 is the right model or whether another one suits you better.<\/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\">Max. inlet (barg)<\/th><th scope=\"col\">Outlet (barg)<\/th><th scope=\"col\">Max. T (\u00b0C)<\/th><th scope=\"col\">Steam<\/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\/en\/product\/pressure-reducing-valve-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\/en\/product\/pressure-reducing-valve-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>Yes<\/td><\/tr><tr><th scope=\"row\"><a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-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>Yes<\/td><\/tr><tr><th scope=\"row\"><a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-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>Yes<\/td><\/tr><tr><th scope=\"row\"><a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valves-m1\/\">M1<\/a><\/th><td>15 \u2013 150<\/td><td>40<\/td><td>40<\/td><td>0,1 \u2013 15<\/td><td>220<\/td><td>Yes<\/td><\/tr><tr><th scope=\"row\"><a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-m2\/\">M2<\/a><\/th><td>15 \u2013 100<\/td><td>40<\/td><td>40<\/td><td>0,02 \u2013 10<\/td><td>180<\/td><td>Yes<\/td><\/tr><\/tbody><\/table><\/figure><\/div><p class=\"vf-note wp-block-paragraph\">Temperature in parentheses: with EPDM or Viton gaskets. Data from the Valfonta general pressure reducing valve catalog (2025). If you are unsure whether to choose a piston or a diaphragm valve, read our <a href=\"https:\/\/www.valfonta.com\/en\/blog\/piston-vs-diaphragm\/\">comparison of piston and diaphragm reducing valves<\/a>.<\/p><\/section><section id=\"preguntas\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Frequently asked questions about the PRV30<\/h2><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Can the PRV30 be used with steam?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">No. The PRV30 is designed for Group 2 liquids and gases: water, oil, compressed air, and inert gases. For steam, Valfonta manufactures the <a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-prv44\/\">PRV44<\/a>, which handles up to 210 \u00b0C, and the <a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valves-m1\/\">M1<\/a>, up to 220 \u00b0C.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>What outlet pressure can be set?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">The outlet pressure depends on the adjusting spring. There are three ranges: from 0.5 to 3 barg, from 1 to 8 barg, and from 4 to 12 barg. The inlet pressure can be up to 25 barg.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>How do you adjust the outlet pressure of the PRV30?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">With an 8 mm Allen key on the adjusting screw. Compressing the spring raises the outlet pressure, and releasing it lowers it. Make the adjustment with the installation in service and check the value on the outlet pressure gauge. We explain it step by step in <a href=\"https:\/\/www.valfonta.com\/en\/blog\/how-it-regulate-a-pressure-reducing-valve\/\">how to adjust a pressure reducing valve<\/a>.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>In what position should it be installed?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">Installation in a horizontal pipe is recommended, following the flow direction arrow on the body. Its internal design allows other positions, although the manual indicates that some permitted orientations are not recommended.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>What maintenance does it need?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">It needs no routine maintenance. The gaskets and wear parts should be checked at intervals that depend on the operating conditions. Maintenance can be carried out with the valve installed, always depressurized and isolated. There are three spare parts kits: gaskets and seat (PRV30.SP1), gaskets (PRV30.SP2), and springs (PRV30.SP3).<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Does the PRV30 carry CE marking?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">It does not need it. Given its size (DN15 to DN25), pressure rating (PN25), and fluid type (Group 2), it falls under Article 4.3 of the Pressure Equipment Directive 2014\/68\/EU, which does not require CE marking.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Can it be installed in an ATEX zone?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">Yes. The PRV30 carries ATEX II 2 GD marking (certificate LOM 14.034 U) and can be used in zones 1 and 2 (flammable gases, vapors, and liquids) and 21 and 22 (combustible dust), within the temperature class corresponding to the fluid temperature.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>What is its Kv coefficient?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">The standard Kv is 2 m\u00b3\/h for DN15, 2.5 m\u00b3\/h for DN20, and 3.5 m\u00b3\/h for DN25. A reduced Kv for small flow rates is available on request.<\/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\">Other pressure reducing valve models<\/h2><ul class=\"vf-rel wp-block-list\"><li><a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-prv44\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-PRV30-44.jpg\" alt=\"PRV44 reducing valve\" class=\"wp-image-207\" width=\"300\" height=\"300\" loading=\"lazy\"><b>PRV44 reducing valve<\/b><span>DN15\u201325 and PN25 like the PRV30, but suitable for steam up to 210 \u00b0C.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-prv20\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-PRV20-FOTO.jpg\" alt=\"PRV20 reducing valve\" class=\"wp-image-215\" width=\"300\" height=\"300\" loading=\"lazy\"><b>PRV20 reducing valve<\/b><span>316L stainless, DN8\u201320 and up to 40 bar inlet.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-prv45\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-PRV45-55.jpg\" alt=\"PRV45 reducing valve\" class=\"wp-image-208\" width=\"300\" height=\"300\" loading=\"lazy\"><b>PRV45 reducing valve<\/b><span>Very low outlet pressures, from 0.01 barg; suitable for steam.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-vd\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-reductora-presion-vd-perspectiva-400.webp\" alt=\"VD reducing valve\" class=\"wp-image-10116\" width=\"300\" height=\"300\" loading=\"lazy\"><b>VD reducing valve<\/b><span>From DN15 to DN100, up to 40 bar, and steam up to 200 \u00b0C.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valves-m1\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-reductora-presion-m1-perspectiva-400.webp\" alt=\"M1 reducing valve\" class=\"wp-image-201\" width=\"300\" height=\"300\" loading=\"lazy\"><b>M1 reducing valve<\/b><span>Up to DN150 and 220 \u00b0C, for steam.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-m2\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-M2-PROVISIONAL.jpg\" alt=\"M2 diaphragm reducing valve\" class=\"wp-image-206\" width=\"300\" height=\"300\" loading=\"lazy\"><b>M2 diaphragm reducing valve<\/b><span>DN15\u2013100, outlet pressures from 0.02 barg, and steam up to 180 \u00b0C.<\/span><\/a><\/li><li><a href=\"https:\/\/www.valfonta.com\/en\/product\/bellow-pressure-reducing-valve\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-M2F.jpg\" alt=\"M2 bellows reducing valve\" class=\"wp-image-209\" width=\"300\" height=\"300\" loading=\"lazy\"><b>M2 bellows reducing valve<\/b><span>Version with a sealing bellows.<\/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\">Request a quote for the PRV30<\/h2><p class=\"wp-block-paragraph\">Give us your installation details and we will recommend the right size, spring range, and gaskets.<\/p><ul class=\"wp-block-list\"><li>Fluid and operating temperature<\/li><li>Inlet pressure and desired outlet pressure<\/li><li>Maximum and minimum flow rate<\/li><li>Connection type (threaded or flanged)<\/li><\/ul><p class=\"vf-pdp-contact wp-block-paragraph\">You can also call <a href=\"tel:+34933720888\">933 720 888<\/a>.<\/p><\/div>\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f561-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"561\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/en\/wp-json\/wp\/v2\/product\/609#wpcf7-f561-o1\" method=\"post\" class=\"wpcf7-form init vf-form wpcf7-acceptance-as-validation\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\" toolname=\"solicitar_oferta\" tooldescription=\"Request a quote from Valfonta for the models on this page (model, size, fluid and pressures); a member of the team will reply.\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"561\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.2.3\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f561-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=\"1792698946.5e1f34601a427ec3\" \/>\n<\/fieldset>\n<input class=\"wpcf7-form-control wpcf7-hidden\" value=\"PRV30\" type=\"hidden\" name=\"modelo\" \/><label>Name *<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>Company<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>Email *<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>Phone<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>Application data (optional)<\/legend><label>Size<span class=\"wpcf7-form-control-wrap\" data-name=\"dn\"><select class=\"wpcf7-form-control wpcf7-select\" aria-invalid=\"false\" name=\"dn\"><option value=\"\">Select<\/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=\"I don&#039;t know\">I don&#039;t know<\/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=\"water, air, nitrogen\u2026\" value=\"\" type=\"text\" name=\"fluido\" \/><\/span><\/label><label>Inlet pressure (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>Required outlet pressure (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>Flow rate<span class=\"wpcf7-form-control-wrap\" data-name=\"caudal\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"e.g. 2 m\u00b3\/h\" value=\"\" type=\"text\" name=\"caudal\" \/><\/span><\/label><label>Temperature (\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\">Message<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>I have read and accept the <a href=\"\/en\/privacy-policy\/\">privacy policy<\/a> *<\/span><\/label><input class=\"wpcf7-form-control wpcf7-submit has-spinner vf-btn vf-btn--pri\" type=\"submit\" value=\"Send request\" \/><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\">Call<\/a><a class=\"vf-btn vf-btn--pri\" href=\"#solicitar\">Request a quote<\/a><\/p><\/div><\/article><\/div>","protected":false},"excerpt":{"rendered":"<p>Home\u203aPressure reducing valves\u203aPRV30 pressure reducing valve Pressure reducing valve \u00b7 Direct-acting PRV30 pressure reducing valve 316L stainless Self-regulating, piston-balanced reducing valve made entirely of AISI 316L stainless steel. It keeps the outlet pressure constant even when the inlet pressure fluctuates, in water, compressed air, and inert gases, up to 25 bar. Request a quoteDownload datasheet ... <a title=\"PRV30 pressure reducing valve\" class=\"read-more\" href=\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-prv30\/\" aria-label=\"Read more about PRV30 pressure reducing valve\">Read more<\/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":"PRV30 pressure reducing valve, 316L stainless | Valfonta","rank_math_description":"Direct-acting, piston-balanced PRV30 pressure reducing valve made of 316L stainless steel. DN15 to DN25, PN25, outlet from 0.5 to 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\/en\/\",\"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\":\"Design, manufacture, and sale of pressure reducing valves, pressure relief valves, and control valves.\"},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.valfonta.com\/#website\",\"url\":\"https:\/\/www.valfonta.com\/en\/\",\"name\":\"Valfonta\",\"publisher\":{\"@id\":\"https:\/\/www.valfonta.com\/#organization\"},\"inLanguage\":\"en\"},{\"@type\":\"ItemPage\",\"@id\":\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-prv30\/#webpage\",\"url\":\"https:\/\/www.valfonta.com\/en\/product\/pressure-reducing-valve-prv30\/\",\"name\":\"PRV30 pressure reducing valve, 316L stainless | Valfonta\",\"description\":\"Direct-acting, piston-balanced PRV30 pressure reducing valve made of 316L stainless steel. 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Reduced Kv on request\"},{\"@type\":\"PropertyValue\",\"name\":\"Temperature depending on gaskets\",\"value\":\"NBR: \u221230 to +80 \u00b0C \u00b7 EPDM: \u221210 to +125 \u00b0C \u00b7 Viton: \u221210 to +150 \u00b0C\"},{\"@type\":\"PropertyValue\",\"name\":\"Fluids\",\"value\":\"Group 2 liquids and gases: water, oil, compressed air, inert gases\"},{\"@type\":\"PropertyValue\",\"name\":\"Materials\",\"value\":\"Body, cap, and internals in AISI 316L stainless steel (1.4404). NBR gaskets as standard\"},{\"@type\":\"PropertyValue\",\"name\":\"Mounting position\",\"value\":\"Recommended in a horizontal pipe; the design allows other positions\"},{\"@type\":\"PropertyValue\",\"name\":\"Pressure Equipment Directive\",\"value\":\"PED 2014\/68\/EU, Article 4.3: CE marking not required\"},{\"@type\":\"PropertyValue\",\"name\":\"ATEX\",\"value\":\"II 2 GD c IIC Tx \/ c IIIC Tx\u00baC \u00b7 certificate LOM 14.034 U\"},{\"@type\":\"PropertyValue\",\"name\":\"On request\",\"value\":\"Body and cap in super duplex \u00b7 weld ends (socket weld or butt weld) \u00b7 clamp connection \u00b7 degreased for oxygen service \u00b7 EPDM, PEEK, Viton, or Aflas gaskets\"}],\"category\":\"Pressure reducing valves\",\"subjectOf\":[{\"@type\":\"DigitalDocument\",\"name\":\"PRV30 datasheet\",\"url\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/PRV30-16B-ESP.pdf\",\"encodingFormat\":\"application\/pdf\"},{\"@type\":\"DigitalDocument\",\"name\":\"Operation and installation manual\",\"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\/en\/product\/pressure-reducing-valve-prv30\/#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Can the PRV30 be used with steam?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The PRV30 is designed for Group 2 liquids and gases: water, oil, compressed air, and inert gases. For steam, Valfonta manufactures the PRV44, which handles up to 210 \u00b0C, and the M1, up to 220 \u00b0C.\"}},{\"@type\":\"Question\",\"name\":\"What outlet pressure can be set?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The outlet pressure depends on the adjusting spring. There are three ranges: from 0.5 to 3 barg, from 1 to 8 barg, and from 4 to 12 barg. The inlet pressure can be up to 25 barg.\"}},{\"@type\":\"Question\",\"name\":\"How do you adjust the outlet pressure of the PRV30?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"With an 8 mm Allen key on the adjusting screw. Compressing the spring raises the outlet pressure, and releasing it lowers it. Make the adjustment with the installation in service and check the value on the outlet pressure gauge. We explain it step by step in how to adjust a pressure reducing valve.\"}},{\"@type\":\"Question\",\"name\":\"In what position should it be installed?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Installation in a horizontal pipe is recommended, following the flow direction arrow on the body. Its internal design allows other positions, although the manual indicates that some permitted orientations are not recommended.\"}},{\"@type\":\"Question\",\"name\":\"What maintenance does it need?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It needs no routine maintenance. The gaskets and wear parts should be checked at intervals that depend on the operating conditions. Maintenance can be carried out with the valve installed, always depressurized and isolated. There are three spare parts kits: gaskets and seat (PRV30.SP1), gaskets (PRV30.SP2), and springs (PRV30.SP3).\"}},{\"@type\":\"Question\",\"name\":\"Does the PRV30 carry CE marking?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It does not need it. Given its size (DN15 to DN25), pressure rating (PN25), and fluid type (Group 2), it falls under Article 4.3 of the Pressure Equipment Directive 2014\/68\/EU, which does not require CE marking.\"}},{\"@type\":\"Question\",\"name\":\"Can it be installed in an ATEX zone?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The PRV30 carries ATEX II 2 GD marking (certificate LOM 14.034 U) and can be used in zones 1 and 2 (flammable gases, vapors, and liquids) and 21 and 22 (combustible dust), within the temperature class corresponding to the fluid temperature.\"}},{\"@type\":\"Question\",\"name\":\"What is its Kv coefficient?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The standard Kv is 2 m\u00b3\/h for DN15, 2.5 m\u00b3\/h for DN20, and 3.5 m\u00b3\/h for DN25. A reduced Kv for small flow rates is available on request.\"}}]}]}]"},"product_brand":[],"product_cat":[79],"product_tag":[],"class_list":["post-609","product","type-product","status-publish","has-post-thumbnail","product_cat-sin-categorizar","first","instock","shipping-taxable","purchasable","product-type-variable"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.valfonta.com\/en\/wp-json\/wp\/v2\/product\/609","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.valfonta.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.valfonta.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.valfonta.com\/en\/wp-json\/wp\/v2\/media\/216"}],"wp:attachment":[{"href":"https:\/\/www.valfonta.com\/en\/wp-json\/wp\/v2\/media?parent=609"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.valfonta.com\/en\/wp-json\/wp\/v2\/product_brand?post=609"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.valfonta.com\/en\/wp-json\/wp\/v2\/product_cat?post=609"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.valfonta.com\/en\/wp-json\/wp\/v2\/product_tag?post=609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}