{"id":10352,"date":"2026-04-15T14:05:44","date_gmt":"2026-04-15T12:05:44","guid":{"rendered":"https:\/\/www.valfonta.com\/blog\/stainless-steel-prvs-for-desalination-plants\/"},"modified":"2026-04-15T14:05:44","modified_gmt":"2026-04-15T12:05:44","slug":"stainless-steel-prvs-for-desalination-plants","status":"publish","type":"post","link":"https:\/\/www.valfonta.com\/en\/blog\/stainless-steel-prvs-for-desalination-plants\/","title":{"rendered":"Stainless steel PRVs valves for desalination plants in coastal USA"},"content":{"rendered":"<div class=\"wp-block-group vf-raiz vf-pl-articulo is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-cat-wrap is-layout-flow wp-block-group-is-layout-flow\"><article class=\"wp-block-group vf-pdp vf-post 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 class=\"vf-sep\">\u203a<\/span><a href=\"\/en\/blog\/\">Blog<\/a><span class=\"vf-sep\">\u203a<\/span><span aria-current=\"page\">Stainless steel PRVs valves for desalination plants in coastal USA<\/span><\/p><\/nav><header class=\"wp-block-group vf-post-head is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-pdp-eyebrow wp-block-paragraph\"><a href=\"\/en\/pressure-reducing-valves\/\">Pressure reducing valves<\/a><\/p><h1 class=\"wp-block-heading\">Stainless steel PRVs valves for desalination plants in coastal USA<\/h1><p class=\"vf-post-meta wp-block-paragraph\"><span>By Valfonta<\/span><span><time datetime=\"2026-04-15\">Updated April 15, 2026<\/time><\/span><span>10 min read<\/span><\/p><\/header><figure class=\"wp-block-image size-full vf-post-hero is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/Desalination-USA-Plant.webp\" alt=\"Stainless steel PRVs valves for desalination plants in coastal USA\" class=\"wp-image-10350\" width=\"1200\" height=\"514\"\/><\/figure><div class=\"wp-block-group vf-post-grid is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-post-body is-layout-flow wp-block-group-is-layout-flow\"><details class=\"wp-block-details vf-post-toc-m is-layout-flow wp-block-details-is-layout-flow\"><summary>Article contents<\/summary><ol class=\"wp-block-list\"><li><a href=\"#why-do-standard-valves-fail-prematurely-in-saline-applicatio\">Why do standard valves fail prematurely in saline applications?<\/a><\/li><li><a href=\"#how-to-ensure-stability-in-reverse-osmosis-ro-and-distributi\">How to ensure stability in Reverse Osmosis (RO) and distribution lines?<\/a><\/li><li><a href=\"#how-to-integrate-european-precision-into-us-infrastructure-a\">How to integrate European precision into US Infrastructure (ASME\/ANSI)?<\/a><\/li><\/ol><\/details><h2 class=\"wp-block-heading\" id=\"why-do-standard-valves-fail-prematurely-in-saline-applicatio\">Why do standard valves fail prematurely in saline applications?<\/h2><p class=\"wp-block-paragraph\">In the competitive US desalination market\u2014from municipal plants in Florida to industrial skids in Texas\u2014corrosion remains the primary cause of asset failure. <\/p><p class=\"wp-block-paragraph\">Standard pressure reducing valves (PRVs), often specified with generic \"316 Stainless Steel\" bodies, frequently fail within 12 to 18 months of service.<\/p><p class=\"wp-block-paragraph\">The failure mechanism is rarely simple oxidation. It is a combination of <strong>galvanic corrosion<\/strong> and <strong>chloride attack<\/strong> that compromises the valve's internal regulation mechanism. <\/p><p class=\"wp-block-paragraph\">For Plant Managers, this translates into unstable downstream pressure, leaks, and unplanned shutdowns. Valfonta engineers specifically address these challenges with our <strong>PRV Series (PRV30, PRV44, PRV45)<\/strong>, designed to exceed standard CF8M specifications.<\/p><h3 class=\"wp-block-heading\" id=\"how-does-chloride-stress-corrosion-cracking-scc-compromise-v\">How does Chloride Stress Corrosion Cracking (SCC) compromise valve integrity?<\/h3><p class=\"wp-block-paragraph\">The most insidious threat in high-pressure brine lines is <strong>Chloride Stress Corrosion Cracking (SCC)<\/strong>. This phenomenon occurs when austenitic stainless steels are subjected to tensile stress in a chloride-rich environment\u2014exactly the conditions found inside a PRV regulating seawater at 900 psi (60 bar).<\/p><p class=\"wp-block-paragraph\">In cast bodies (investment casting), micro-porosities act as initiation points for these cracks. SCC manifests as microscopic fissures that propagate rapidly, leading to sudden catastrophic failure without prior warning leaks.<\/p><p class=\"wp-block-paragraph\">To mitigate this, Valfonta\u2019s <strong>PRV30 and PRV44 models<\/strong> feature bodies <strong>machined from solid bar stock<\/strong>. The dense, forged-like grain structure of bar stock effectively blocks crack propagation, ensuring long-term structural integrity even in lines with high chloride concentration (&gt;10,000 ppm).<\/p><h3 class=\"wp-block-heading\" id=\"is-aisi-316l-enough-or-does-your-brine-line-require-super-du\">Is AISI 316L enough, or does your brine line require Super Duplex?<\/h3><p class=\"wp-block-paragraph\">Material selection must be driven by the specific salinity and temperature of the fluid. A \"one-size-fits-all\" approach with 316L is often insufficient for the rejection lines where brine concentration is highest.<\/p><ul class=\"wp-block-list\"><li><strong>Seawater Intake &amp; Permeate:<\/strong> For standard seawater intake or potable water distribution (permeate), our standard <strong>AISI 316L (1.4404)<\/strong> construction is generally sufficient, provided the temperature remains below 120\u00b0F (50\u00b0C).<\/li><li><strong>High-Pressure Brine Rejection:<\/strong> In the RO rejection lines, Valfonta offers the <strong>PRV Series<\/strong> custom-machined in <strong>Duplex (1.4462)<\/strong> or <strong>Super Duplex (1.4410)<\/strong> upon request. These alloys offer a Pitting Resistance Equivalent Number (PREN) &gt;35, significantly outperforming 316L (~24) and providing the necessary safety margin against localized pitting.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"how-does-the-salt-spray-effect-damage-external-actuators-in\">How does the \"Salt Spray\" effect damage external actuators in coastal facilities?<\/h3><p class=\"wp-block-paragraph\">Corrosion isn't limited to the wetted parts. In coastal plants, the <strong>marine atmosphere<\/strong> itself is corrosive. The \"salt spray\" effect carries airborne chlorides that settle on valve actuators, springs, and bolts.<\/p><p class=\"wp-block-paragraph\">Standard valves with large external pneumatic actuators or exposed carbon steel springs will rust and eventually cease.<\/p><p class=\"wp-block-paragraph\">Valfonta\u2019s <strong>PRV Series<\/strong> offers a distinct design advantage for coastal installations:<\/p><ul class=\"wp-block-list\"><li><strong>Compact &amp; Enclosed Design:<\/strong> Unlike control valves with bulky yokes, the PRV30\/44\/45 feature a compact, self-contained design. The regulating spring is fully enclosed within the stainless-steel bonnet (or spring housing), shielding it entirely from the salt-laden atmosphere.<\/li><li><strong>No External Actuators:<\/strong> Being self-acting, they require no external air supply or electrical wiring, eliminating the most vulnerable components in a corrosive environment.<\/li><\/ul><h2 class=\"wp-block-heading\" id=\"how-to-ensure-stability-in-reverse-osmosis-ro-and-distributi\">How to ensure stability in Reverse Osmosis (RO) and distribution lines?<\/h2><p class=\"wp-block-paragraph\">Stability is not just an operational requirement in a Seawater Reverse Osmosis (SWRO) plant; it is the cornerstone of the entire process economics. A pressure fluctuation of just a few psi in the feed line can disrupt the delicate osmotic equilibrium across the semi-permeable membranes. If the pressure drops, permeate production halts; if it spikes, it can irreversibly foul or telescope the expensive membrane elements.<\/p><p class=\"wp-block-paragraph\">Furthermore, in the post-treatment and distribution stages, maintaining a flat pressure curve is critical to prevent \"water hammer\" that could shatter GRP (Glass Reinforced Plastic) piping often used in permeate lines.<\/p><p class=\"wp-block-paragraph\">Valfonta engineers address these challenges by segmenting the plant's pressure control into purpose-built solutions within our <strong>PRV Series<\/strong>: utilizing the <a href=\"\/en\/product\/pressure-reducing-valve-prv45\/\"><strong>PRV45<\/strong><\/a> for high-flow low-pressure stability, the <a href=\"\/en\/product\/pressure-reducing-valve-prv30\/\"><strong>PRV30<\/strong><\/a> for aggressive high-pressure rejection, and the compact <a href=\"\/en\/product\/pressure-reducing-valve-prv20\/\"><strong>PRV20<\/strong><\/a> for critical instrumentation lines.<\/p><h3 class=\"wp-block-heading\" id=\"why-is-the-prv45-the-superior-choice-for-low-pressure-permea\">Why is the PRV45 the superior choice for low-pressure permeate distribution?<\/h3><p class=\"wp-block-paragraph\">Once the seawater has been desalinated, the resulting permeate (potable water) must be distributed to remineralization skids or municipal storage tanks. This process typically requires a steady downstream pressure between <strong>15 and 90 psi (1 to 6 bar)<\/strong>.<\/p><p class=\"wp-block-paragraph\">While many US competitors attempt to use standard piston valves here, they often fail to achieve stable regulation at these lower ranges due to internal friction. The <strong>Valfonta PRV45<\/strong> is specifically engineered to bridge this gap.<\/p><ul class=\"wp-block-list\"><li><strong>Enhanced Sensitivity Actuator:<\/strong> Unlike standard hydraulic piston valves that suffer from \"stick-slip\" at low pressures, the PRV45 features a widened sensing chamber. This design increases the hydraulic ratio between the sensing area and the seat area. A small deviation in downstream pressure translates into a large corrective force on the stem, allowing the valve to modulate smoothly even at partial openings of 15-20%.<\/li><li><strong>Flow Capacity ($C_v$) Optimization:<\/strong> Permeate lines often carry high volumes of water. The PRV45 body is designed with an optimized flow path to maximize the flow coefficient ($C_v$). This minimizes pressure loss across the valve when fully open and prevents the \"choking\" effect common in undersized regulators during peak demand.<\/li><li><strong>FDA &amp; NSF Compliance:<\/strong> Since this valve handles the final product\u2014drinking water\u2014material safety is paramount. The PRV45 is available with <strong>FDA-certified EPDM seals<\/strong>, ensuring no leaching of plasticizers or contaminants into the ultra-pure permeate, meeting the strict requirements of US water districts.<\/li><\/ul><figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-PRV45-55.jpg\" alt=\"pressure reduce valve PRV45\" class=\"wp-image-208\" width=\"600\" height=\"600\" loading=\"lazy\"\/><\/figure><h3 class=\"wp-block-heading\" id=\"can-the-prv30-piston-valve-withstand-the-cavitation-of-high\">Can the PRV30 Piston Valve withstand the cavitation of high-pressure lines?<\/h3><p class=\"wp-block-paragraph\">The brine rejection line and high-pressure auxiliary cleaning (CIP) systems represent the most hostile fluid environments in a desalination facility. We are dealing with highly concentrated saline water (TDS &gt; 70,000 ppm) being throttled at pressures often exceeding <strong>800-1000 psi (60-70 bar)<\/strong>.<\/p><p class=\"wp-block-paragraph\">In these conditions, the fluid velocity through the seat can reach supersonic speeds, causing <strong>flashing<\/strong> and <strong>cavitating flow<\/strong>. A standard diaphragm valve would be shredded in hours. The <strong>Valfonta PRV30<\/strong> is the industry\u2019s heavy-duty answer to this problem.<\/p><figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-reductora-PRV30_-valvula-reductora-de-presion-inoxidable_VALFONTA.jpg\" alt=\"pressure reduce valve PRV30\" class=\"wp-image-287\" width=\"600\" height=\"600\" loading=\"lazy\"\/><\/figure><ul class=\"wp-block-list\"><li><strong>The Physics of the Piston:<\/strong> The PRV30 utilizes a solid stainless steel piston rather than a flexible membrane. The mass of this piston acts as a mechanical damper, absorbing the high-frequency vibrations caused by the massive pressure drop ($\\Delta P &gt; 500$ psi). This prevents the valve from entering resonance, a common cause of stem fatigue.<\/li><li><strong>Hardfacing Strategy:<\/strong> To combat the erosion caused by micro-implosions (cavitational pitting), Valfonta does not rely on soft stainless steel. We apply <strong>Stellite Grade 6<\/strong> (Cobalt-Chromium-Tungsten) hardfacing to both the plug and the seat. This alloy achieves a hardness of <strong>45 HRC<\/strong>, effectively armoring the trim against the \"sandblasting\" effect of high-velocity brine.<\/li><li><strong>Dynamic Sealing:<\/strong> The piston seal in the PRV30 is designed with a self-energizing geometry. As the system pressure increases, the seal presses tighter against the cylinder wall, ensuring Class IV shutoff even under extreme loads.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"why-is-the-machined-from-bar-stock-design-of-the-prv20-criti\">Why is the \"Machined from Bar Stock\" design of the PRV20 critical for sampling lines?<\/h3><p class=\"wp-block-paragraph\">In every SWRO plant, there is a network of small-bore tubing (1\/4\", 3\/8\", 1\/2\" NPT) used for online analyzers (pH, conductivity, ORP) and sampling panels. These lines require small, precise regulators to step down pressure before the sensors.<\/p><p class=\"wp-block-paragraph\">The <strong>Valfonta PRV20<\/strong> is unique in the US market because it is manufactured exclusively from <strong>solid bar stock<\/strong>, never from castings.<\/p><ul class=\"wp-block-list\"><li><strong>The Porosity Problem:<\/strong> Cheap, investment-cast mini-regulators often contain microscopic casting pores. In a high-chloride environment, these pores trap salt crystals. Over time, \"crevice corrosion\" expands these pores, leading to pinhole leaks that spray pressurized seawater onto sensitive electronic analyzers.<\/li><li><strong>Bar Stock Integrity:<\/strong> By machining the PRV20 from a solid billet of <strong>AISI 316Ti (1.4571)<\/strong> or <strong>Duplex 2205<\/strong>, we guarantee a dense, uniform grain structure with absolutely zero porosity. This makes the PRV20 virtually immune to body leakage, protecting your expensive instrumentation panels ($10k+ assets) from saltwater damage.<\/li><li><strong>Compact \"All-in-One\":<\/strong> The PRV20 integrates the sensing mechanism and the spring housing into a compact footprint (approx. 5 inches tall), ideal for crowded sampling skids where space is at a premium.<\/li><\/ul><figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-PRV20-FOTO.jpg\" alt=\"pressure reduce valve PRV20\" class=\"wp-image-215\" width=\"600\" height=\"600\" loading=\"lazy\"\/><\/figure><p class=\"wp-block-paragraph\"><strong>To help US engineers select the correct model, we provide the following operational comparison:<\/strong><\/p><div class=\"wp-block-group vf-tbl-wrap is-layout-flow wp-block-group-is-layout-flow\"><figure class=\"wp-block-table vf-post-table\"><table><thead><tr><th><strong>Feature<\/strong><\/th><th><strong>PRV20 (Instrumentation)<\/strong><\/th><th><strong>PRV45 (Permeate Dist.)<\/strong><\/th><th><strong>PRV30 (Brine\/High Pressure)<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>Typical Application<\/strong><\/td><td>Sampling Panels, Analyzers<\/td><td>Potable Water, permeate<\/td><td>Rejection, Pump Protection<\/td><\/tr><tr><td><strong>Body Construction<\/strong><\/td><td><strong>Solid Bar Stock<\/strong> (No Castings)<\/td><td>Cast or Bar Stock (size dep.)<\/td><td><strong>Solid Bar Stock<\/strong> (Heavy Duty)<\/td><\/tr><tr><td><strong>Connection Types<\/strong><\/td><td>1\/4\" - 1\/2\" NPT Female<\/td><td>1\/2\" - 2\" NPT or ANSI Flanges<\/td><td>1\/2\" - 2\" NPT or ANSI 300\/600<\/td><\/tr><tr><td><strong>Max Inlet Pressure<\/strong><\/td><td>3000 psi (210 bar)<\/td><td>360 psi (25 bar)<\/td><td><strong>3600 psi (250 bar)<\/strong><\/td><\/tr><tr><td><strong>Outlet Range<\/strong><\/td><td>1.5 - 200 psi<\/td><td><strong>10 - 100 psi (Optimized)<\/strong><\/td><td>15 - 300+ psi<\/td><\/tr><tr><td><strong>Trim Material<\/strong><\/td><td>316Ti Stainless Steel<\/td><td>316L \/ EPDM (Soft Seat)<\/td><td><strong>Stellite Gr. 6<\/strong> (Hard Faced)<\/td><\/tr><\/tbody><\/table><\/figure><\/div><h2 class=\"wp-block-heading\" id=\"how-to-integrate-european-precision-into-us-infrastructure-a\">How to integrate European precision into US Infrastructure (ASME\/ANSI)?<\/h2><p class=\"wp-block-paragraph\">For many US Plant Managers, integrating European valves into an existing American piping network is often perceived as a headache due to compatibility fears. However, Valfonta has eliminated this barrier by standardizing our <strong>PRV Series<\/strong> for the North American market. <\/p><p class=\"wp-block-paragraph\">We do not require you to install adapters or modify your skid layout. Our valve bodies are machined with <strong>NPT (National Pipe Taper)<\/strong> threads as standard for sizes up to 2 inches, ensuring a leak-proof seal with your existing instrumentation fittings.<\/p><p class=\"wp-block-paragraph\">For larger lines requiring flanged connections, we provide integral flanges machined according to <strong>ASME B16.5 Class 150, 300, or 600<\/strong>, matching the exact \"Face-to-Face\" dimensions required by US engineering standards. This \"Drop-in Replacement\" capability means you can replace a failing, cast-iron regulator with a solid stainless steel Valfonta unit during a standard maintenance window, without welding or re-piping. <\/p><p class=\"wp-block-paragraph\">Furthermore, all our pressure gauges and documentation are supplied in PSI, and our technical support team speaks the language of <strong>ASME Section VIII<\/strong>, ensuring that your compliance paperwork is seamless from day one.<\/p><h3 class=\"wp-block-heading\" id=\"are-valfonta-valves-compatible-with-existing-npt-and-ansi-b1\">Are Valfonta valves compatible with existing NPT and ANSI B16.5 piping?<\/h3><p class=\"wp-block-paragraph\">Beyond physical connectivity, long-term compatibility depends on ease of maintenance. In the remote desalination plants of Texas or the island installations of the Caribbean, waiting weeks for a proprietary spare part is not an option. Valfonta\u2019s design philosophy for the US market centers on <strong>modularity and simplicity<\/strong>. The <strong>PRV Series<\/strong> is designed to be serviced inline (Top-Entry) for most maintenance tasks.<\/p><p class=\"wp-block-paragraph\">Crucially, we utilize standard commercial O-ring sizes for static seals wherever possible, allowing maintenance crews to source emergency replacements locally if needed. However, for the critical dynamic seals and the piston itself, we offer comprehensive <strong>\"Soft Goods Kits\"<\/strong> and <strong>\"Overhaul Kits\"<\/strong> with rapid delivery to the US.\u00a0<\/p><p class=\"wp-block-paragraph\">Unlike many competitors who force you to buy a whole new valve when the trim wears out, Valfonta provides the individual seat and plug components, respecting your OPEX budget. By combining the robustness of European bar-stock manufacturing with the connectivity standards of American industry, Valfonta offers the definitive solution for the corrosive reality of coastal desalination.<\/p><\/div><aside class=\"wp-block-group vf-post-aside is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-post-sticky is-layout-flow wp-block-group-is-layout-flow\"><nav class=\"wp-block-group vf-post-toc vfa-aria-label--Article%20contents is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">In this article<\/p><ol class=\"wp-block-list\"><li><a href=\"#why-do-standard-valves-fail-prematurely-in-saline-applicatio\">Why do standard valves fail prematurely in saline applications?<\/a><\/li><li><a href=\"#how-to-ensure-stability-in-reverse-osmosis-ro-and-distributi\">How to ensure stability in Reverse Osmosis (RO) and distribution lines?<\/a><\/li><li><a href=\"#how-to-integrate-european-precision-into-us-infrastructure-a\">How to integrate European precision into US Infrastructure (ASME\/ANSI)?<\/a><\/li><\/ol><\/nav><div class=\"wp-block-group vf-post-cta is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-t wp-block-paragraph\">Do you need a pressure reducing valve?<\/p><p class=\"wp-block-paragraph\">We help you choose the right model and size for your installation.<\/p><p class=\"vf-envolt wp-block-paragraph\"><a class=\"vf-btn vf-btn--pri\" href=\"#contactar\">Request a quote<\/a><\/p><p class=\"vf-envolt wp-block-paragraph\"><a class=\"vf-btn vf-btn--sec\" href=\"\/en\/pressure-reducing-valves\/\">View pressure reducing valves<\/a><\/p><p class=\"vf-tel wp-block-paragraph\">Or call <a href=\"tel:+34933720888\">933 720 888<\/a><\/p><\/div><\/div><\/aside><\/div><section id=\"valvulas\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Related valves<\/h2><ul class=\"vf-rel wp-block-list\"><li><a href=\"\/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=\"\/en\/product\/pressure-reducing-valve-prv30\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-reductora-presion-prv30-frontal-400.webp\" alt=\"PRV30 reducing valve\" class=\"wp-image-199\" width=\"300\" height=\"300\" loading=\"lazy\"><b>PRV30 reducing valve<\/b><span>316L stainless, from DN15 to DN25, threaded or flanged, up to 25 bar.<\/span><\/a><\/li><li><a href=\"\/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><\/ul><p class=\"vf-post-more wp-block-paragraph\"><a href=\"\/en\/pressure-reducing-valves\/\">View all pressure reducing valves \u2192<\/a><\/p><\/section><section id=\"articulos\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Related articles<\/h2><div class=\"wp-block-group vf-post-cards vf-t-ul is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-t-li is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-amb-enllac is-layout-flow wp-block-group-is-layout-flow\"><figure class=\"wp-block-image vf-img-suelta\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/portada_1_como-seleccionar-una-vlvula-de-control_Valfonta.jpg\" alt=\"\" class=\"wp-image-236\" width=\"400\" height=\"225\" loading=\"lazy\"><\/figure><div class=\"wp-block-group vf-in is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><small>Pressure reducing valves<\/small><b>What problems do pressure reducing valves commonly have?<\/b><span>6 min read<\/span><\/p><\/div><p class=\"vf-enllac wp-block-paragraph\"><a class=\"vf-enllac-estirat\" href=\"\/en\/blog\/pressure-reducing-valve-problems\/\" aria-label=\"Pressure reducing valves What problems do pressure reducing valves commonly have? 6 min read\"><\/a><\/p><\/div><\/div><div class=\"wp-block-group vf-t-li is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-amb-enllac is-layout-flow wp-block-group-is-layout-flow\"><figure class=\"wp-block-image vf-img-suelta\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/alivio-de-presionpara-agua-gases-y-vapor1.jpg\" alt=\"\" class=\"wp-image-167\" width=\"400\" height=\"225\" loading=\"lazy\"><\/figure><div class=\"wp-block-group vf-in is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><small>Relief and safety<\/small><b>Pressure relief valve for water, steam, and gases: definition and operation<\/b><span>10 min read<\/span><\/p><\/div><p class=\"vf-enllac wp-block-paragraph\"><a class=\"vf-enllac-estirat\" href=\"\/en\/blog\/water-pressure-relief-valve\/\" aria-label=\"Relief and safety Pressure relief valve for water, steam, and gases: definition and operation 10 min read\"><\/a><\/p><\/div><\/div><div class=\"wp-block-group vf-t-li is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-amb-enllac is-layout-flow wp-block-group-is-layout-flow\"><figure class=\"wp-block-image vf-img-suelta\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/pasted-image-0-1.png\" alt=\"\" class=\"wp-image-227\" width=\"400\" height=\"225\" loading=\"lazy\"><\/figure><div class=\"wp-block-group vf-in is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><small>Relief and safety<\/small><b>What is the difference between a safety valve and a pressure relief valve?<\/b><span>9 min read<\/span><\/p><\/div><p class=\"vf-enllac wp-block-paragraph\"><a class=\"vf-enllac-estirat\" href=\"\/en\/blog\/what-difference-between-safety-valve-and-relief-valve\/\" aria-label=\"Relief and safety What is the difference between a safety valve and a pressure relief valve? 9 min read\"><\/a><\/p><\/div><\/div><\/div><\/section><section id=\"contactar\" 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\">Can we help with your installation?<\/h2><p class=\"wp-block-paragraph\">Tell us the fluid, the inlet and outlet pressures, the temperature, and the flow rate, and we will recommend the right valve.<\/p><p class=\"vf-pdp-contact wp-block-paragraph\">You can also call <a href=\"tel:+34933720888\">933 720 888<\/a> or email <a href=\"mailto:valfonta@valfonta.com\">valfonta@valfonta.com<\/a>.<\/p><\/div>\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f535-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"535\">\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\/posts\/10352#wpcf7-f535-o1\" method=\"post\" class=\"wpcf7-form init vf-form wpcf7-acceptance-as-validation\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\" toolname=\"consulta_contacto\" tooldescription=\"Send an enquiry to Valfonta, industrial valve manufacturer; a member of the team will reply.\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"535\" \/><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-f535-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=\"1792702974.51991310497a4fa5\" \/>\n<\/fieldset>\n<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><label class=\"vf-full\">Reason for your inquiry<span class=\"wpcf7-form-control-wrap\" data-name=\"motivo\"><select class=\"wpcf7-form-control wpcf7-select\" aria-invalid=\"false\" name=\"motivo\"><option value=\"\">Select<\/option><option value=\"Request a quote\">Request a quote<\/option><option value=\"Technical advice on choosing a valve\">Technical advice on choosing a valve<\/option><option value=\"Spare parts or repair\">Spare parts or repair<\/option><option value=\"Documentation or certificates\">Documentation or certificates<\/option><option value=\"Other\">Other<\/option><\/select><\/span><\/label><label class=\"vf-full\">Message *<span class=\"wpcf7-form-control-wrap\" data-name=\"mensaje\"><textarea cols=\"40\" rows=\"5\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Tell us what you need: fluid, pressures, flow rate, model, or serial number\u2026\" 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 message\" \/><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=\"#contactar\">Request a quote<\/a><\/p><\/div><\/article><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Fighting corrosion in US coastal plants? Discover Valfonta's solid bar stock PRVs (316Ti\/Duplex). High-pressure brine rejection &#038; NPT\/ANSI compatibility.<\/p>\n","protected":false},"author":1,"featured_media":10350,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_generate-full-width-content":"true","_generate-disable-headline":"true","rank_math_title":"Stainless steel valve PRV for Desalination - valfonta.com","rank_math_description":"Fighting corrosion in US coastal plants? Discover Valfonta's solid bar stock PRVs (316Ti\/Duplex). 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