{"id":11383,"date":"2026-08-04T06:05:26","date_gmt":"2026-08-04T06:05:26","guid":{"rendered":"https:\/\/www.fleyendavalve.com\/?page_id=11383"},"modified":"2026-10-19T03:05:40","modified_gmt":"2026-10-19T03:05:40","slug":"water-treatment-valves","status":"publish","type":"page","link":"https:\/\/www.fleyendavalve.com\/tr\/water-treatment-valves\/","title":{"rendered":"Water Treatment Valves"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"11383\" class=\"elementor elementor-11383\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1daeb3d e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-parent\" data-id=\"1daeb3d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-03aa349 e-con-full 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breakpoints *\/\r\n@media (max-width:1000px){\r\n.fvwt .product-showcase{grid-template-columns:repeat(2,minmax(0,1fr))}\r\n.fvwt .wt-product:nth-child(3){grid-column:1\/-1;border-top:1px solid #dbe4ed;border-left:0;display:grid;grid-template-columns:235px 1fr;column-gap:25px;align-content:start}\r\n.fvwt .wt-product:nth-child(3) .wt-product__top{grid-column:1\/-1}\r\n.fvwt .wt-product:nth-child(3) .wt-product__photo{grid-column:1;grid-row:2\/8;margin-bottom:0}\r\n.fvwt .wt-product:nth-child(3) .wt-product__specs{margin-top:0}\r\n}\r\n@media (max-width:700px){\r\n.fvwt .products .section-intro{margin-bottom:24px}\r\n.fvwt .product-showcase{grid-template-columns:1fr}\r\n.fvwt .wt-product,.fvwt .wt-product:nth-child(3){display:flex;padding:22px 19px 24px;border-left:0;grid-column:auto}\r\n.fvwt .wt-product + .wt-product{border-left:0;border-top:1px solid #dbe4ed}\r\n.fvwt .wt-product__photo,.fvwt .wt-product:nth-child(3) .wt-product__photo{width:100%;height:200px;margin:13px 0 18px;padding:13px}\r\n.fvwt .wt-product__photo img{height:178px}\r\n.fvwt .wt-product h3{font-size:22px}\r\n.fvwt .wt-product p{font-size:13.5px;margin-bottom:14px}\r\n.fvwt .wt-product__specs{margin-top:0;padding:12px 0 6px}\r\n.fvwt .wt-product__link{margin-top:10px}\r\n}\r\n<\/style>\r\n<main class=\"fvwt\" id=\"water-treatment-valves\">\r\n<section class=\"hero\">\r\n  <img decoding=\"async\" class=\"hero-bg\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/08\/hero-water-treatment-applications.webp\" alt=\"\" aria-hidden=\"true\" fetchpriority=\"high\">\r\n  <div class=\"wrap hero-main\">\r\n    <div>\r\n      <span class=\"eyebrow light\">Fleyenda Flow Technology \/ Water & Wastewater<\/span>\r\n      <h1>Water Treatment Valves for Equipment Manufacturers<\/h1>\r\n      <p class=\"lead\">Engineered valve and actuator solutions for filtration packages, reverse osmosis skids, chemical dosing units, industrial wastewater equipment and packaged pumping systems. Built around your process duty, control philosophy and repeatable equipment BOM.<\/p>\r\n      <div class=\"hero-actions\"><a class=\"btn white\" href=\"#valve-products\">Explore Valve Products<\/a><a class=\"btn ghost\" href=\"mailto:inquiry@fleyendaflow.com?subject=OEM%20Water%20Treatment%20Valve%20Inquiry\">Request Engineering Support<\/a><\/div>\r\n      <div class=\"hero-bottom\"><span>Electric & pneumatic assemblies<\/span><span>Materials & sealing selection<\/span><span>Technical documentation<\/span><\/div>\r\n    <\/div>\r\n    <div class=\"hero-side\"><b>Common equipment interfaces<\/b><div>RO feed, concentrate & CIP<\/div><div>Filtration & automatic backwash<\/div><div>Chemical dosing & neutralization<\/div><div>Sludge, pumps & wastewater lines<\/div><\/div>\r\n  <\/div>\r\n<\/section>\r\n<section class=\"assurance\"><div class=\"wrap assurance-grid\">\r\n  <article><small>01 \/ SELECTION<\/small><strong>Duty-led specification<\/strong><p>Match the valve to process function, media, pressure and service conditions.<\/p><\/article>\r\n  <article><small>02 \/ INTEGRATION<\/small><strong>Actuated packages<\/strong><p>Valve, actuator and feedback accessories evaluated as a single assembly.<\/p><\/article>\r\n  <article><small>03 \/ ENGINEERING<\/small><strong>Drawings & test scope<\/strong><p>Dimensional coordination and inspection requirements for technical approval.<\/p><\/article>\r\n  <article><small>04 \/ OEM SUPPLY<\/small><strong>Repeatable configurations<\/strong><p>Part identification and controlled specifications for equipment build programs.<\/p><\/article>\r\n<\/div><\/section>\r\n<section class=\"section-pad\"><div class=\"wrap\">\r\n  <div class=\"intro-top\"><div><span class=\"eyebrow\">The equipment-builder perspective<\/span><h2>A Valve Is a Functional Part of the Entire Treatment System<\/h2><\/div><div class=\"intro-copy\"><p>For an OEM or EPC contractor, selecting industrial water treatment valves is not just a matter of matching DN and pressure rating. The selected valve affects pressure loss, equipment footprint, cleaning access, electrical integration, maintenance procedures and downstream protection.<\/p><p>Fleyenda works with water treatment equipment manufacturers and system integrators to define isolation, diversion, non-return and control duties across the full equipment package. The goal is an appropriate valve specification that can be repeated across units, documented for approval and maintained in the field.<\/p><\/div><\/div>\r\n  <div class=\"goal-row\"><article><b>Specify for the process<\/b><p>Confirm filtration, dosing, membrane cleaning or sludge conditions before choosing valve construction.<\/p><\/article><article><b>Design for integration<\/b><p>Consider envelope dimensions, actuator orientation, power supply and maintenance access early.<\/p><\/article><article><b>Procure for continuity<\/b><p>Align project BOMs, drawings, approved models, inspection points and spares.<\/p><\/article><\/div>\r\n<\/div><\/section>\r\n<section class=\"products section-pad\" id=\"valve-products\"><div class=\"wrap\">\r\n  <div class=\"section-intro\"><div><span class=\"eyebrow\">01 \/ Electric valve portfolio<\/span><h2>Electric Valves for Water Treatment Equipment<\/h2><\/div><p class=\"summary\">Three essential automated duties for water treatment OEMs: isolate the line, route the flow, or modulate the process. Select the operating function before confirming body and seat materials, installation dimensions, pressure ratings and actuator signals.<\/p><\/div>\r\n  <div class=\"product-showcase\">\r\n    <article class=\"wt-product\">\r\n      <div class=\"wt-product__top\"><span>01 \/ Isolation &amp; backwash<\/span><b>FLE-D-CEF<\/b><\/div>\r\n      <div class=\"wt-product__photo\"><img src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/07\/electric-flanged-butterfly-valve.webp\" width=\"600\" height=\"600\" loading=\"lazy\" decoding=\"async\" alt=\"Fleyenda electric flanged butterfly valves with blue electric actuators for water treatment isolation\"><\/div>\r\n      <div class=\"wt-product__function\">Automated shutoff<\/div>\r\n      <h3>Electric Flanged Butterfly Valve<\/h3>\r\n      <p>For automatic isolation, filter backwash sequencing and water-distribution lines. Compact face-to-face installation with electric operation. Verify seat compatibility, pressure differential and actuator torque.<\/p>\r\n      <ul class=\"wt-product__specs\"><li>DN50\u2013DN600<\/li><li>PN10 \/ PN16<\/li><li>Flanged \/ EPDM option<\/li><\/ul>\r\n      <a class=\"wt-product__link\" href=\"https:\/\/www.fleyendavalve.com\/product\/electric-actuated-valve\/electric-actuated-butterfly-valve\/electric-cast-iron-flanged-epdm-butterfly-valve\/\">View Product Details<\/a>\r\n    <\/article>\r\n    <article class=\"wt-product\">\r\n      <div class=\"wt-product__top\"><span>02 \/ Flow diversion<\/span><b>FLE-Q-TF<\/b><\/div>\r\n      <div class=\"wt-product__photo\"><img src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/07\/3-way-ball-valve-1.webp\" width=\"600\" height=\"600\" loading=\"lazy\" decoding=\"async\" alt=\"Fleyenda three-way flanged electric ball valve with orange electric actuator for automatic water treatment flow routing\"><\/div>\r\n      <div class=\"wt-product__function\">Automated flow routing<\/div>\r\n      <h3>Electric 3-Way Flanged Ball Valve<\/h3>\r\n      <p>Switch between filters, bypass lines or process branches with L-port or T-port configurations. Confirm port connections in every actuator position before selecting controls and fail position.<\/p>\r\n      <ul class=\"wt-product__specs\"><li>DN15\u2013DN200<\/li><li>L-Port \/ T-Port<\/li><li>On\/Off electric<\/li><\/ul>\r\n      <a class=\"wt-product__link\" href=\"https:\/\/www.fleyendavalve.com\/electric-actuated-3-way-flanged-ball-valve\/\">View Product Details<\/a>\r\n    <\/article>\r\n    <article class=\"wt-product\">\r\n      <div class=\"wt-product__top\"><span>03 \/ Flow regulation<\/span><b>FLE-VQ-F<\/b><\/div>\r\n      <div class=\"wt-product__photo\"><img src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2025\/08\/V-PORT-ball-valve-2-1.webp\" width=\"600\" height=\"600\" loading=\"lazy\" decoding=\"async\" alt=\"Fleyenda electric actuator V-port segmented ball control valve for modulating flow in industrial treatment systems\"><\/div>\r\n      <div class=\"wt-product__function\">Proportional process control<\/div>\r\n      <h3>Electric V-Port Control Valve<\/h3>\r\n      <p>For selected water and process-liquid loops requiring repeatable throttling rather than simple switching. Size the V-port using flow range, differential pressure, Cv and control signal.<\/p>\r\n      <ul class=\"wt-product__specs\"><li>DN25\u2013DN300<\/li><li>V-Port segmented<\/li><li>Modulating options<\/li><\/ul>\r\n      <a class=\"wt-product__link\" href=\"https:\/\/www.fleyendavalve.com\/v-port-ball-valve-electric-actuator\/\">View Product Details<\/a>\r\n    <\/article>\r\n  <\/div>\r\n  <div class=\"portfolio-extra\"><div class=\"portfolio-extra-title\"><h3>Additional Valve Types for Specialized Treatment Duties<\/h3><p>Small-bore chemical lines, abrasive wastewater and pneumatic packages often need a different valve construction from main water-line automation.<\/p><\/div>\r\n    <article><h4>UPVC Electric Ball Valves<\/h4><p>Compact automated isolation for compatible low-temperature water and chemical lines. Confirm pressure derating, polymer compatibility, sealing and true-union access.<\/p><a class=\"link\" href=\"https:\/\/www.fleyendavalve.com\/product\/electric-actuated-valve\/electric-actuated-ball-valve\/2-way-upvc-electric-ball-valve\/\">View Product<\/a><\/article>\r\n    <article><h4>Pneumatic PVC Ball Valves<\/h4><p>Fast on\/off actuation for appropriate dosing and auxiliary lines. Check instrument air, spring return requirements and medium compatibility.<\/p><a class=\"link\" href=\"https:\/\/www.fleyendavalve.com\/product\/pneumatic-actuated-valve\/pneumatic-actuator-ball-valve\/fle-at-q-2-way-pvc-double-union-pneumatic-ball-valve\/\">View Product<\/a><\/article>\r\n    <article><h4>Pneumatic Knife Gate Valves<\/h4><p>Selected wastewater sludge duties with suspended solids. Review solids content, differential pressure, gate seal design and cycling requirements.<\/p><a class=\"link\" href=\"https:\/\/www.fleyendavalve.com\/product\/pneumatic-actuated-valve\/pneumatic-knife-gate-valve\/dn50-dn1000-pneumatic-knife-gate-valve-with-air-cylinder-actuator\/\">View Product<\/a><\/article>\r\n  <\/div>\r\n<\/div><\/section>\r\n<section class=\"applications section-pad\" id=\"equipment-applications\"><div class=\"wrap\">\r\n  <div class=\"section-intro\"><div><span class=\"eyebrow\">02 \/ Equipment applications<\/span><h2>Where Valves Add Value Inside a Treatment Package<\/h2><\/div><p class=\"summary\">The appropriate valve depends on its location and failure consequences within the process, not simply on whether the project is called \"water treatment\" or \"wastewater treatment\".<\/p><\/div>\r\n  <div class=\"app-focus\"><div class=\"app-focus-media\"><img decoding=\"async\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/08\/hero-water-treatment-applications.webp\" loading=\"lazy\" alt=\"Industrial water treatment process piping used as a reference for reverse osmosis skids\"><\/div><div class=\"app-focus-copy\"><span class=\"eyebrow light\">Main engineering focus \/ Reverse osmosis<\/span><h3>Valves for RO Skids, Membrane Systems & CIP Lines<\/h3><p>An RO package includes multiple operating states: production, shutdown, flushing and chemical cleaning. Isolation and non-return functions should be coordinated with the high-pressure pump, membrane vessels and automatic sequence.<\/p><ul><li><b>Feed & pump<\/b><span>Isolation, check-valve behavior and upstream pressure limits.<\/span><\/li><li><b>Concentrate<\/b><span>Pressure control, brine chemistry and designed pressure drop.<\/span><\/li><li><b>Permeate<\/b><span>Isolation, backflow prevention and hygiene requirements.<\/span><\/li><li><b>CIP \/ flushing<\/b><span>Cleaning chemical compatibility and reliable path segregation.<\/span><\/li><\/ul><\/div><\/div>\r\n  <div class=\"app-grid\">\r\n    <article><span class=\"index\">01 \/ AUTOMATED FILTRATION<\/span><h3>Filter & Backwash Packages<\/h3><p>Rapid and repeatable switch-over between filtration, backwash, rinse and drain states. Compare valve operating time, cycle frequency, head loss and actuator feedback in the sequencing logic.<\/p><div class=\"use\">Valve duties: butterfly \/ ball \/ check<\/div><\/article>\r\n    <article><span class=\"index\">02 \/ CHEMICAL CONDITIONING<\/span><h3>Chemical Dosing Skids<\/h3><p>Acids, alkalis, coagulants and cleaning agents require verified wetted-material compatibility. Review chemical concentration, temperature, pressure, permeation and the ability to service true-union connections.<\/p><div class=\"use\">Valve duties: plastic \/ lined ball \/ diaphragm<\/div><\/article>\r\n    <article><span class=\"index\">03 \/ MUNICIPAL & INDUSTRIAL<\/span><h3>Wastewater Treatment<\/h3><p>Influent, effluent and process water normally differ from sludge and grit streams. Specify knife gates only where their construction is appropriate for the solids loading and pressure differential.<\/p><div class=\"use\">Valve duties: butterfly \/ check \/ knife gate<\/div><\/article>\r\n    <article><span class=\"index\">04 \/ PUMP INTEGRATION<\/span><h3>Booster & Transfer Skids<\/h3><p>Pump sets need maintainable isolation and non-return behavior during starts, trips and parallel operation. Assess static head, minimum flow and transient pressure rather than treating a check valve as a generic commodity.<\/p><div class=\"use\">Valve duties: check \/ butterfly \/ ball<\/div><\/article>\r\n    <article><span class=\"index\">05 \/ HIGH-CHLORIDE SERVICE<\/span><h3>Desalination & Brine Lines<\/h3><p>Seawater and concentrated brine call for careful evaluation of chloride exposure, crevice corrosion, elastomer compatibility and the full pressure-temperature envelope. Material selection is project-specific.<\/p><div class=\"use\">Valve duties: corrosion-resistant isolation \/ control<\/div><\/article>\r\n    <article><span class=\"index\">06 \/ SUPPORTING EQUIPMENT<\/span><h3>Utilities, Drains & Sampling<\/h3><p>Compact valves on drain, vent, bypass and sampling branches can affect maintainability and operator safety. Review access clearance, dead legs, isolation policy and line identification.<\/p><div class=\"use\">Valve duties: compact ball \/ check \/ specialty<\/div><\/article>\r\n  <\/div>\r\n<\/div><\/section>\r\n<section class=\"schematic section-pad\"><div class=\"wrap\">\r\n  <div class=\"schematic-head\"><div><span class=\"eyebrow\">03 \/ System-level engineering<\/span><h2>Typical Valve Positions in an RO Equipment Train<\/h2><\/div><p>Use the process sequence to build a valve list. A functional drawing identifies duties; final sizing and approval require actual P&IDs and design conditions.<\/p><\/div>\r\n  <div class=\"process-track\" role=\"list\" aria-label=\"Illustrative reverse osmosis process stages\">\r\n    <article role=\"listitem\"><span class=\"node\">01<\/span><h3>Feedwater<\/h3><p>Inlet isolation and diversion to pretreatment equipment.<\/p><em>Ball \/ butterfly<\/em><\/article>\r\n    <article role=\"listitem\"><span class=\"node\">02<\/span><h3>Prefiltration<\/h3><p>Isolation and automatic filter backwash or rinse paths.<\/p><em>Butterfly \/ ball<\/em><\/article>\r\n    <article role=\"listitem\"><span class=\"node\">03<\/span><h3>High-pressure pump<\/h3><p>Discharge protection, maintenance isolation and transient review.<\/p><em>Check \/ isolation<\/em><\/article>\r\n    <article role=\"listitem\"><span class=\"node\">04<\/span><h3>RO membranes<\/h3><p>Feed, reject, product routing and selected pressure regulation.<\/p><em>Isolation \/ control<\/em><\/article>\r\n    <article role=\"listitem\"><span class=\"node\">05<\/span><h3>CIP & discharge<\/h3><p>Cleaning-fluid path selection, rinse and safe drainage.<\/p><em>Compatible ball \/ diaphragm<\/em><\/article>\r\n  <\/div>\r\n  <div class=\"process-note\"><strong>One skid, several valve specifications.<\/strong><p>Consider normal production, emergency shutdown, pump trip, maintenance isolation and chemical cleaning as separate operating cases. The fail position and leakage class should be agreed for each actuated valve.<\/p><\/div>\r\n<\/div><\/section>\r\n<section class=\"selection section-pad\" id=\"valve-selection\"><div class=\"wrap\">\r\n  <div class=\"section-intro\"><div><span class=\"eyebrow\">04 \/ Quick selection reference<\/span><h2>Water Treatment Valve Selection by Process Duty<\/h2><\/div><p class=\"summary\">A practical first-pass reference for OEM specification discussions. Final model selection should follow verified fluid data, piping conditions and the project's approved engineering standards.<\/p><\/div>\r\n  <div class=\"table-scroll\" tabindex=\"0\" aria-label=\"Scrollable water treatment valve selection table\"><table class=\"compare\"><thead><tr><th scope=\"col\">Process duty<\/th><th scope=\"col\">Starting valve type<\/th><th scope=\"col\">Why it may fit<\/th><th scope=\"col\">Critical engineering check<\/th><th scope=\"col\">Product path<\/th><\/tr><\/thead><tbody>\r\n    <tr><th scope=\"row\">Filter feed \/ backwash<\/th><td>Actuated butterfly or ball<\/td><td>Compact sequencing and remote switching<\/td><td>Valve travel time, pressure drop, cycles, seat compatibility<\/td><td><a href=\"https:\/\/www.fleyendavalve.com\/product\/electric-actuated-valve\/electric-actuated-butterfly-valve\/electric-cast-iron-flanged-epdm-butterfly-valve\/\">Electric butterfly valve<\/a><\/td><\/tr>\r\n    <tr><th scope=\"row\">RO pump discharge<\/th><td>Check valve plus isolation<\/td><td>Reverse-flow protection after pump trip<\/td><td>Closure dynamics, minimum flow, water hammer, orientation<\/td><td><a href=\"https:\/\/www.fleyendavalve.com\/what-is-a-swing-check-valve\/\">Check valve guide<\/a><\/td><\/tr>\r\n    <tr><th scope=\"row\">RO CIP \/ flushing<\/th><td>Ball or diaphragm<\/td><td>Defined cleaning and flush paths<\/td><td>Chemical concentration, seal swelling, temperature and drainage<\/td><td><a href=\"https:\/\/www.fleyendavalve.com\/product\/electric-actuated-valve\/electric-actuated-ball-valve\/2-way-upvc-electric-ball-valve\/\">UPVC electric ball<\/a><\/td><\/tr>\r\n    <tr><th scope=\"row\">Chemical dosing<\/th><td>Compatible plastic \/ lined valve<\/td><td>Isolation of selected chemical lines<\/td><td>Wetted-material data, pressure derating and chemical service<\/td><td><a href=\"https:\/\/www.fleyendavalve.com\/product\/pneumatic-actuated-valve\/pneumatic-actuator-ball-valve\/fle-at-q-2-way-pvc-double-union-pneumatic-ball-valve\/\">Pneumatic PVC ball<\/a><\/td><\/tr>\r\n    <tr><th scope=\"row\">Sludge transfer<\/th><td>Knife gate \/ appropriate solids valve<\/td><td>Isolation in selected solids-bearing streams<\/td><td>Solids size, abrasion, solids settling, differential pressure<\/td><td><a href=\"https:\/\/www.fleyendavalve.com\/product\/pneumatic-actuated-valve\/pneumatic-knife-gate-valve\/dn50-dn1000-pneumatic-knife-gate-valve-with-air-cylinder-actuator\/\">Pneumatic knife gate<\/a><\/td><\/tr>\r\n    <tr><th scope=\"row\">Process flow modulation<\/th><td>Control \/ characterized V-port<\/td><td>Adjustment of flow or pressure where applicable<\/td><td>Cv\/Kv, cavitation, control range, actuator sizing<\/td><td><a href=\"https:\/\/www.fleyendavalve.com\/product-category\/electric-actuated-valve\/electric-actuated-ball-valve\/\">Control-capable ball valves<\/a><\/td><\/tr>\r\n    <tr><th scope=\"row\">Desalination \/ brine<\/th><td>Application-specific isolation<\/td><td>Materials selected for corrosive process service<\/td><td>Chlorides, crevice corrosion, pressure, temperature, deposits<\/td><td><a href=\"https:\/\/www.fleyendavalve.com\/product-category\/electric-actuated-valve\/\">Actuated valves<\/a><\/td><\/tr>\r\n  <\/tbody><\/table><\/div>\r\n  <div class=\"table-after\"><p><strong>Important:<\/strong> Selection tables are guidance, not a substitute for material compatibility data, application-specific safety reviews, supplier-approved datasheets or applicable potable-water approvals.<\/p><p><strong>For OEM quotations:<\/strong> Send a P&ID or valve schedule when available so that each valve position can be checked against the actual process function.<\/p><\/div>\r\n<\/div><\/section>\r\n<section class=\"selection section-pad\" id=\"materials-guide\" style=\"background:#fff;border-top:1px solid #dbe3ec\"><div class=\"wrap\">\r\n  <div class=\"section-intro\"><div><span class=\"eyebrow\">05 \/ Materials & chemical service<\/span><h2>Choosing Valve Materials for Different Water Chemistries<\/h2><\/div><p class=\"summary\">There is no universally \u201cbest\u201d valve material for water treatment. The right choice changes between filtered water, corrosive dosing chemicals, high-chloride streams, wastewater solids and cleaning circuits.<\/p><\/div>\r\n  <div class=\"table-scroll\" tabindex=\"0\" aria-label=\"Material considerations for water treatment valves\"><table class=\"compare\"><thead><tr><th scope=\"col\">Service condition<\/th><th scope=\"col\">Construction to evaluate<\/th><th scope=\"col\">Important limitation<\/th><th scope=\"col\">Data needed for approval<\/th><\/tr><\/thead><tbody>\r\n    <tr><th scope=\"row\">General filtered water<\/th><td>Appropriate coated iron, stainless steel or suitable thermoplastics with compatible seats<\/td><td>Water chemistry, coating damage and elastomer suitability can affect durability.<\/td><td>pH, temperature, pressure, chlorides, potable-water requirements<\/td><\/tr>\r\n    <tr><th scope=\"row\">Acid \/ alkali dosing<\/th><td>Selected UPVC, CPVC, PP, PVDF, PTFE-lined or specialty constructions<\/td><td>Compatibility varies with chemical identity, concentration and operating temperature.<\/td><td>Exact chemical, wt%, temperature, pressure, seal composition<\/td><\/tr>\r\n    <tr><th scope=\"row\">Oxidizing disinfectant<\/th><td>Chemical-service materials selected from verified wetted-material data<\/td><td>Oxidizers may attack certain elastomers, plastics or metal alloys even when diluted.<\/td><td>Concentration, pH, exposure duration, temperature, cleaning regimen<\/td><\/tr>\r\n    <tr><th scope=\"row\">RO cleaning \/ CIP<\/th><td>Compatible ball, diaphragm or specialty isolation arrangements<\/td><td>Cleaning chemistry and thermal exposure may differ from routine production conditions.<\/td><td>CIP chemicals, maximum cleaning temperature, exposure time<\/td><\/tr>\r\n    <tr><th scope=\"row\">Seawater \/ concentrate<\/th><td>Suitable high-corrosion-resistance metallic, polymeric or lined solutions<\/td><td>Do not presume an ordinary stainless grade is immune to chloride attack.<\/td><td>Chlorides, oxygen, pressure, temperature, deposits, service life<\/td><\/tr>\r\n    <tr><th scope=\"row\">Sludge \/ suspended solids<\/th><td>Knife gate, butterfly or abrasion-oriented valve construction as appropriate<\/td><td>Seating design, sediment accumulation and erosion may dominate material life.<\/td><td>Solid fraction, particle size, abrasiveness, operating cycles<\/td><\/tr>\r\n  <\/tbody><\/table><\/div>\r\n  <div class=\"table-after\"><p><strong>Elastomer check:<\/strong> EPDM, NBR and FKM have different compatibility profiles. A PTFE seat may be appropriate for some chemicals, but gaskets, stem seals and end connections must also be checked.<\/p><p><strong>Approval approach:<\/strong> Confirm materials using current supplier compatibility data and the exact process conditions\u2014not a generic list of \u201cacid-resistant\u201d or \u201ccorrosion-resistant\u201d valves.<\/p><\/div>\r\n<\/div><\/section>\r\n<section class=\"engineering section-pad\" id=\"engineering-guide\"><div class=\"wrap\">\r\n  <div class=\"engineering-lede\"><div><span class=\"eyebrow\">06 \/ Engineering knowledge<\/span><h2>Critical Decisions Before Approving a Valve<\/h2><\/div><p>Design errors often appear at the interface between process conditions, mechanical fit and control hardware. The most useful supplier discussion happens before the equipment BOM and electrical drawings are frozen.<\/p><\/div>\r\n  <div class=\"engineering-grid\">\r\n    <article><span class=\"engineering-index\">01 \/ MEDIA & WETTED MATERIALS<\/span><h3>Material Compatibility Is More Than \"Corrosion Resistant\"<\/h3><p>Water chemistry can vary significantly across intake, pretreatment, RO, regeneration and dosing circuits. Confirm the complete wetted path\u2014not only the body material.<\/p><ul><li>Record chemical identity, concentration, pH, chlorides, suspended solids and cleaning exposure.<\/li><li>Verify body, trim, coating, seat, O-ring and seal compatibility together.<\/li><li>Account for pressure-temperature derating in polymer valves and aggressive chemical mixtures.<\/li><li>Specify required drinking-water or high-purity approvals separately where applicable.<\/li><\/ul><\/article>\r\n    <article><span class=\"engineering-index\">02 \/ PRESSURE & HYDRAULICS<\/span><h3>Evaluate Pressure Drop and Transient Behavior<\/h3><p>A nominal pressure class is not enough for valve selection. Head loss, differential pressure across the seat and transient events affect both valve and pump-system reliability.<\/p><ul><li>Check operating flow range, fluid density, design pressure and temperature.<\/li><li>For throttling duties, calculate Cv\/Kv and investigate cavitation or flashing risk.<\/li><li>For check valves, consider startup, minimum velocity, pump trip and reverse-flow dynamics.<\/li><li>Size actuators against the correct maximum seating and breakaway torque.<\/li><\/ul><\/article>\r\n    <article><span class=\"engineering-index\">03 \/ CONNECTIONS & INSTALLATION<\/span><h3>Make the Valve Fit the Complete Skid Layout<\/h3><p>Dimensional mismatches become expensive when valves are fitted into compact machines or prefabricated manifolds. Confirm key interfaces early.<\/p><ul><li>Flange drilling, face-to-face length, union end type and pipe schedule.<\/li><li>Actuator envelope, handwheel access, service clearance and cable-entry direction.<\/li><li>Installation orientation, pipe support and accessibility for inspection.<\/li><li>Repeatable dimensions for multi-skid manufacturing programs.<\/li><\/ul><\/article>\r\n    <article><span class=\"engineering-index\">04 \/ CONTROL & FUNCTIONAL DUTY<\/span><h3>Specify What the Valve Must Do on Power Loss<\/h3><p>On\/off isolation, modulating control and emergency positioning require different specifications. The chosen fail position depends on the actual process hazard assessment.<\/p><ul><li>Define open\/close versus modulating duty, travel time and duty cycle.<\/li><li>Check power availability, instrument air quality and control system signals.<\/li><li>Confirm limit switches, position indication and feedback to PLC\/SCADA.<\/li><li>Define loss-of-power and loss-of-air responses for each valve position.<\/li><\/ul><\/article>\r\n  <\/div>\r\n  <div class=\"engineering-callout\"><strong>Engineering principle<\/strong><p>A single treatment system can require cast iron, stainless, thermoplastic and specially lined valve constructions in different positions. Choose each on proven service conditions rather than specifying one valve material for the entire plant.<\/p><\/div>\r\n<\/div><\/section>\r\n<section class=\"control section-pad\"><div class=\"wrap\">\r\n  <div class=\"control-top\"><div><span class=\"eyebrow\">07 \/ Automation integration<\/span><h2>Electric or Pneumatic: Select an Actuator for the Duty<\/h2><\/div><p>Actuated water treatment valves are components of the equipment control architecture. The actuator, switches, accessories, enclosure and fail strategy should be specified as a complete package, particularly for automatic backwash and remote process skids.<\/p><\/div>\r\n  <div class=\"control-columns\">\r\n    <article><h3>Electric Actuation<\/h3><p>Useful where the equipment provides electrical power and PLC commands but instrument air may be unavailable. Review duty cycle, torque margin and weatherproofing.<\/p><dl><div><dt>Control<\/dt><dd>On\/off or selected modulating arrangements<\/dd><\/div><div><dt>Signals<\/dt><dd>Discrete commands, feedback, selected 4\u201320 mA \/ 0\u201310 V<\/dd><\/div><div><dt>Specify<\/dt><dd>Voltage, travel time, enclosure and power-failure action<\/dd><\/div><\/dl><\/article>\r\n    <article><h3>Pneumatic Actuation<\/h3><p>Often selected for repetitive cycling and plants with a dependable compressed-air network. Verify air quality, pressure, solenoid arrangement and spring-return requirements.<\/p><dl><div><dt>Control<\/dt><dd>Double-acting or spring-return packages<\/dd><\/div><div><dt>Signals<\/dt><dd>Solenoid actuation, position switches, optional positioner<\/dd><\/div><div><dt>Specify<\/dt><dd>Air supply, accessories, stroke time and loss-of-air state<\/dd><\/div><\/dl><\/article>\r\n    <article><h3>Manual & Hybrid Options<\/h3><p>Not every valve position needs automation. Separate critical sequencing duties from occasional maintenance isolation to simplify cost, reliability and operating access.<\/p><dl><div><dt>Control<\/dt><dd>Manual lever, gearbox or selected override<\/dd><\/div><div><dt>Operations<\/dt><dd>Isolation, maintenance and controlled commissioning<\/dd><\/div><div><dt>Specify<\/dt><dd>Operator clearance, access and lockout requirements<\/dd><\/div><\/dl><\/article>\r\n  <\/div>\r\n<\/div><\/section>\r\n<section class=\"case\" id=\"project-reference\"><div class=\"wrap case-layout\">\r\n  <div class=\"case-image\"><img decoding=\"async\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/08\/hero-water-treatment-applications.webp\" alt=\"Water treatment industrial pipework relating to project valve solutions\" loading=\"lazy\"><\/div>\r\n  <div class=\"case-body\"><span class=\"eyebrow light\">08 \/ Water treatment project reference<\/span><h2>Valve Selection for a Mexico Water Treatment Project<\/h2><p>In a published water treatment project reference, Fleyenda describes working with a customer in Mexico to review large-diameter water-line operation, corrosion and humidity exposure, actuator integration and maintenance requirements.<\/p><div class=\"case-points\"><div><small>Application<\/small>Water treatment and distribution<\/div><div><small>Products discussed<\/small>Electric butterfly & gate valves<\/div><div><small>Engineering priorities<\/small>Isolation, actuator control and maintainability<\/div><div><small>Collaboration<\/small>On-site technical discussion<\/div><\/div><a class=\"link\" href=\"https:\/\/www.fleyendavalve.com\/reliable-valve-solutions-for-mexico-water-treatment-project\/\">Read the Water Treatment Project<\/a><\/div>\r\n<\/div><\/section>\r\n<section class=\"quality section-pad\"><div class=\"wrap quality-wrap\">\r\n  <div class=\"quality-photo\"><img decoding=\"async\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2025\/05\/Fleyenda-SGS-inepction.webp\" alt=\"Fleyenda valve inspection activity supporting industrial project supply\" loading=\"lazy\"><\/div>\r\n  <div><span class=\"eyebrow\">09 \/ Quality & project coordination<\/span><h2>OEM Supply That Supports Engineering Approval<\/h2><p>System integrators and machine builders need more than unit pricing. Valve procurement should support drawing approval, material control, inspection planning, predictable identification and maintenance across repeat installations.<\/p>\r\n    <div class=\"quality-list\"><article><strong>Technical submittals<\/strong><p>Datasheets, dimensional drawings, valve\/actuator interface details and requested electrical documentation.<\/p><\/article><article><strong>Testing requirements<\/strong><p>Agree shell, seat-leakage, functional and inspection requirements using the applicable product standards and project ITP.<\/p><\/article><article><strong>Identification & BOM<\/strong><p>Align approved model references, quantities, end-connection specifications and customer part numbers.<\/p><\/article><article><strong>Project continuity<\/strong><p>Discuss spare parts, replacement access, revision control and repeat orders for series-built equipment.<\/p><\/article><\/div>\r\n  <\/div>\r\n<\/div><\/section>\r\n<section class=\"oem section-pad\"><div class=\"wrap\">\r\n  <div class=\"oem-header\"><div><span class=\"eyebrow\">10 \/ OEM procurement guide<\/span><h2>What to Send for Accurate Valve Selection & Quotation<\/h2><\/div><p>Sharing complete operating and interface information at the RFQ stage reduces rounds of clarification and lowers the risk of approving a valve that does not fit the machine.<\/p><\/div>\r\n  <div class=\"spec-grid\">\r\n    <article><h3>Process Conditions<\/h3><ul><li>Equipment type and P&ID line reference<\/li><li>Fluid composition, concentrations, solids and chlorides<\/li><li>Operating \/ design pressure and temperature<\/li><li>Normal, minimum and maximum flow<\/li><li>Isolation, non-return or modulating duty<\/li><\/ul><\/article>\r\n    <article><h3>Mechanical & Automation<\/h3><ul><li>DN\/NPS, piping material and connection standard<\/li><li>Body, trim and sealing preferences<\/li><li>Face-to-face and installation restrictions<\/li><li>Power supply or instrument-air conditions<\/li><li>Control signals, feedback and fail-state requirement<\/li><\/ul><\/article>\r\n    <article><h3>Supply & Approval<\/h3><ul><li>Estimated quantity and equipment build schedule<\/li><li>Destination market and project specifications<\/li><li>Applicable test \/ inspection standards<\/li><li>CAD, drawings, certificates or records required<\/li><li>Spare-parts and repeat-order expectations<\/li><\/ul><\/article>\r\n  <\/div>\r\n<\/div><\/section>\r\n<section class=\"faq section-pad\"><div class=\"wrap faq-layout\"><div><span class=\"eyebrow\">11 \/ Frequently asked questions<\/span><h2>Engineering Questions About Water Treatment Valves<\/h2><p style=\"margin-top:22px;font-size:15px\">Answers below address common selection discussions. Final decisions depend on the actual equipment specification and approved product data.<\/p><\/div>\r\n  <div class=\"faq-items\">\r\n    <details><summary>Which valves are most often used in water treatment equipment?<\/summary><p>Butterfly valves are common for larger isolation and filtration lines; ball valves for compact isolation, chemical-compatible connections and bypasses; check valves for non-return duties; knife gates for selected solids-bearing wastewater; and control valves where flow or pressure modulation is required. Select by specific duty rather than using the same valve throughout a treatment system.<\/p><\/details>\r\n    <details><summary>What valve types should an RO skid builder consider?<\/summary><p>RO systems typically require isolation at feed and utility branches, appropriate check-valve protection around pump circuits, and compatible valves for flushing and CIP. Concentrate control and any throttling duty require hydraulic sizing and an understanding of membrane design limits. The final P&ID determines the valve list.<\/p><\/details>\r\n    <details><summary>Is a PVC or UPVC valve suitable for every chemical dosing line?<\/summary><p>No. Thermoplastic suitability depends on the exact chemical and concentration, operating temperature, pressure, joint design and seal materials. Some media and temperatures require CPVC, PP, PVDF, lined metallic or other constructions. Check the approved compatibility data for every wetted component.<\/p><\/details>\r\n    <details><summary>How should check valves be selected for pump discharge lines?<\/summary><p>Confirm operating flow and velocity, static head, downstream line volume, pump stop characteristics, installation orientation and allowable transient pressure. Non-return behavior depends on valve design and dynamics, not only nominal bore and pressure class. Transient analysis may be required in surge-sensitive systems.<\/p><\/details>\r\n    <details><summary>Can Fleyenda supply electric and pneumatic valve assemblies?<\/summary><p>Fleyenda lists electric and pneumatic valve products with actuator options. For a specific package, provide the required voltage or air pressure, torque duty, cycle frequency, position feedback, enclosure rating, control signals and desired safe position so the configuration can be reviewed.<\/p><\/details>\r\n    <details><summary>Which documents should be requested for an OEM water treatment valve package?<\/summary><p>Common submittals include approved datasheets, valve and actuator drawings, material information, wiring or pneumatic schematics, inspection and test scope, identification details and installation instructions. Project-specific compliance documentation should be agreed before ordering.<\/p><\/details>\r\n    <details><summary>How do you select valve materials for seawater and brine?<\/summary><p>Review chloride concentration, oxygen, crevice geometry, deposits, pressure and temperature, cleaning chemicals and expected maintenance conditions. Do not assume that a generic stainless-steel grade is automatically suitable for high-chloride service. Materials need case-by-case evaluation.<\/p><\/details>\r\n  <\/div>\r\n<\/div><\/section>\r\n<section class=\"cta\"><div class=\"wrap cta-layout\"><div><span class=\"eyebrow light\">Build your next treatment equipment package<\/span><h2>Need Water Treatment Valves for an OEM Project?<\/h2><p>Send us your valve schedule, P&ID, media data or equipment application. We can discuss suitable valve types, connection standards, material options, automation interfaces and requested documentation.<\/p><div class=\"actions\"><a class=\"btn white\" href=\"mailto:inquiry@fleyendaflow.com?subject=Water%20Treatment%20Equipment%20OEM%20RFQ\">Request an OEM Valve Quote<\/a><a class=\"btn ghost\" href=\"https:\/\/www.fleyendavalve.com\/product-category\/electric-actuated-valve\/\">Browse Electric Valves<\/a><\/div><\/div><aside class=\"cta-aside\"><strong>Useful information to include<\/strong><span>Equipment type, P&ID and valve duty<\/span><span>Media, pressure, temperature and flow<\/span><span>Size, end connection and materials<\/span><span>Actuation, feedback and fail position<\/span><span>Quantity, schedule and test documents<\/span><\/aside><\/div><\/section>\r\n<\/main>\r\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Fleyenda Flow Technology \/ Water &#038; Wastewater Water Treatment Valves for Equipment Manufacturers Engineered valve and actuator solutions for filtration packages, reverse osmosis skids, chemical dosing units, industrial wastewater equipment and packaged pumping systems. Built around your process duty, control philosophy and repeatable equipment BOM. Explore Valve ProductsRequest Engineering Support Electric &#038; pneumatic assembliesMaterials &#038; sealing selectionTechnical documentation Common equipment interfacesRO feed, concentrate &#038; CIPFiltration &#038; automatic backwashChemical dosing &#038; neutralizationSludge, pumps &#038; wastewater lines 01 \/ SELECTIONDuty-led specification Match the valve to process function, media, pressure and service conditions. 02 \/ INTEGRATIONActuated packages Valve, actuator and feedback accessories evaluated as a single assembly. 03 \/ ENGINEERINGDrawings &#038; test scope Dimensional coordination and inspection requirements for technical approval. 04 \/ OEM SUPPLYRepeatable configurations Part identification and controlled specifications for equipment build programs. The equipment-builder perspective A Valve Is a Functional Part of the Entire Treatment System For an OEM or EPC contractor, selecting industrial water treatment valves is not just a matter of matching DN and pressure rating. The selected valve affects pressure loss, equipment footprint, cleaning access, electrical integration, maintenance procedures and downstream protection. Fleyenda works with water treatment equipment manufacturers and system integrators to define isolation, diversion, non-return and control duties across the full equipment package. The goal is an appropriate valve specification that can be repeated across units, documented for approval and maintained in the field. Specify for the process Confirm filtration, dosing, membrane cleaning or sludge conditions before choosing valve construction. Design for integration Consider envelope dimensions, actuator orientation, power supply and maintenance access early. Procure for continuity Align project BOMs, drawings, approved models, inspection points and spares. 01 \/ Electric valve portfolio Electric Valves for Water Treatment Equipment Three essential automated duties for water treatment OEMs: isolate the line, route the flow, or modulate the process. Select the operating function before confirming body and seat materials, installation dimensions, pressure ratings and actuator signals. 01 \/ Isolation &amp; backwashFLE-D-CEF Automated shutoff Electric Flanged Butterfly Valve For automatic isolation, filter backwash sequencing and water-distribution lines. Compact face-to-face installation with electric operation. Verify seat compatibility, pressure differential and actuator torque. DN50\u2013DN600 PN10 \/ PN16 Flanged \/ EPDM option View Product Details 02 \/ Flow diversionFLE-Q-TF Automated flow routing Electric 3-Way Flanged Ball Valve Switch between filters, bypass lines or process branches with L-port or T-port configurations. Confirm port connections in every actuator position before selecting controls and fail position. DN15\u2013DN200 L-Port \/ T-Port On\/Off electric View Product Details 03 \/ Flow regulationFLE-VQ-F Proportional process control Electric V-Port Control Valve For selected water and process-liquid loops requiring repeatable throttling rather than simple switching. Size the V-port using flow range, differential pressure, Cv and control signal. DN25\u2013DN300 V-Port segmented Modulating options View Product Details Additional Valve Types for Specialized Treatment Duties Small-bore chemical lines, abrasive wastewater and pneumatic packages often need a different valve construction from main water-line automation. UPVC Electric Ball Valves Compact automated isolation for compatible low-temperature water and chemical lines. Confirm pressure derating, polymer compatibility, sealing and true-union access. View Product Pneumatic PVC Ball Valves Fast on\/off actuation for appropriate dosing and auxiliary lines. Check instrument air, spring return requirements and medium compatibility. View Product Pneumatic Knife Gate Valves Selected wastewater sludge duties with suspended solids. Review solids content, differential pressure, gate seal design and cycling requirements. View Product 02 \/ Equipment applications Where Valves Add Value Inside a Treatment Package The appropriate valve depends on its location and failure consequences within the process, not simply on whether the project is called &#8220;water treatment&#8221; or &#8220;wastewater treatment&#8221;. Main engineering focus \/ Reverse osmosis Valves for RO Skids, Membrane Systems &#038; CIP Lines An RO package includes multiple operating states: production, shutdown, flushing and chemical cleaning. Isolation and non-return functions should be coordinated with the high-pressure pump, membrane vessels and automatic sequence. Feed &#038; pumpIsolation, check-valve behavior and upstream pressure limits. ConcentratePressure control, brine chemistry and designed pressure drop. PermeateIsolation, backflow prevention and hygiene requirements. CIP \/ flushingCleaning chemical compatibility and reliable path segregation. 01 \/ AUTOMATED FILTRATION Filter &#038; Backwash Packages Rapid and repeatable switch-over between filtration, backwash, rinse and drain states. Compare valve operating time, cycle frequency, head loss and actuator feedback in the sequencing logic. Valve duties: butterfly \/ ball \/ check 02 \/ CHEMICAL CONDITIONING Chemical Dosing Skids Acids, alkalis, coagulants and cleaning agents require verified wetted-material compatibility. Review chemical concentration, temperature, pressure, permeation and the ability to service true-union connections. Valve duties: plastic \/ lined ball \/ diaphragm 03 \/ MUNICIPAL &#038; INDUSTRIAL Wastewater Treatment Influent, effluent and process water normally differ from sludge and grit streams. Specify knife gates only where their construction is appropriate for the solids loading and pressure differential. Valve duties: butterfly \/ check \/ knife gate 04 \/ PUMP INTEGRATION Booster &#038; Transfer Skids Pump sets need maintainable isolation and non-return behavior during starts, trips and parallel operation. Assess static head, minimum flow and transient pressure rather than treating a check valve as a generic commodity. Valve duties: check \/ butterfly \/ ball 05 \/ HIGH-CHLORIDE SERVICE Desalination &#038; Brine Lines Seawater and concentrated brine call for careful evaluation of chloride exposure, crevice corrosion, elastomer compatibility and the full pressure-temperature envelope. Material selection is project-specific. Valve duties: corrosion-resistant isolation \/ control 06 \/ SUPPORTING EQUIPMENT Utilities, Drains &#038; Sampling Compact valves on drain, vent, bypass and sampling branches can affect maintainability and operator safety. Review access clearance, dead legs, isolation policy and line identification. Valve duties: compact ball \/ check \/ specialty 03 \/ System-level engineering Typical Valve Positions in an RO Equipment Train Use the process sequence to build a valve list. A functional drawing identifies duties; final sizing and approval require actual P&#038;IDs and design conditions. 01 Feedwater Inlet isolation and diversion to pretreatment equipment. Ball \/ butterfly 02 Prefiltration Isolation and automatic filter backwash or rinse paths. Butterfly \/ ball 03 High-pressure pump Discharge protection, maintenance isolation and transient review. Check \/ isolation 04 RO membranes Feed, reject, product routing and selected pressure regulation.<\/p>","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-11383","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.fleyendavalve.com\/tr\/wp-json\/wp\/v2\/pages\/11383","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fleyendavalve.com\/tr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.fleyendavalve.com\/tr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.fleyendavalve.com\/tr\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fleyendavalve.com\/tr\/wp-json\/wp\/v2\/comments?post=11383"}],"version-history":[{"count":7,"href":"https:\/\/www.fleyendavalve.com\/tr\/wp-json\/wp\/v2\/pages\/11383\/revisions"}],"predecessor-version":[{"id":11842,"href":"https:\/\/www.fleyendavalve.com\/tr\/wp-json\/wp\/v2\/pages\/11383\/revisions\/11842"}],"wp:attachment":[{"href":"https:\/\/www.fleyendavalve.com\/tr\/wp-json\/wp\/v2\/media?parent=11383"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}