{"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":"2026-08-10T06:07:51","modified_gmt":"2026-08-10T06:07:51","slug":"water-treatment-valves","status":"publish","type":"page","link":"https:\/\/www.fleyendavalve.com\/pt\/water-treatment-valves\/","title":{"rendered":"Water Treatment Valves"},"content":{"rendered":"<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 e-flex 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=\"03aa349\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e8748f2 elementor-widget elementor-widget-html\" data-id=\"e8748f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\r\n<!DOCTYPE html>\r\n\r\n<html lang=\"en\">\r\n<head>\r\n<meta charset=\"utf-8\"\/>\r\n<meta content=\"width=device-width, initial-scale=1.0\" name=\"viewport\"\/>\r\n\r\n<link href=\"water-treatment-valves.css\" rel=\"stylesheet\"\/><\/head>\r\n<body>\r\n<main class=\"fwt-page\" dir=\"ltr\">\r\n<section class=\"fwt-hero\">\r\n<img decoding=\"async\" alt=\"\" aria-hidden=\"true\" class=\"fwt-hero__bg\" fetchpriority=\"high\" src=\"https:\/\/images.unsplash.com\/photo-1698031610493-c19fa20dfeab?auto=format&amp;fit=crop&amp;fm=webp&amp;q=88&amp;w=2400\"\/>\r\n<div class=\"fwt-hero__shade\"><\/div>\r\n<div class=\"fwt-shell fwt-hero__grid\">\r\n<div class=\"fwt-hero__copy\">\r\n<span class=\"fwt-kicker fwt-kicker--light\">OEM Valve Solutions<\/span>\r\n<h1>Water Treatment Valves for Equipment Manufacturers<\/h1>\r\n<p>\r\n        Industrial valve solutions for filtration systems, reverse osmosis units,\r\n        chemical dosing skids, wastewater treatment equipment, desalination packages\r\n        and packaged pump systems. Engineered around your media, operating conditions,\r\n        installation space and equipment BOM.\r\n      <\/p>\r\n<div class=\"fwt-hero__actions\">\r\n<a class=\"fwt-btn fwt-btn--light\" href=\"#featured-valves\">Explore Valve Options<\/a>\r\n<a class=\"fwt-btn fwt-btn--ghost\" href=\"mailto:inquiry@fleyendaflow.com?subject=Water%20Treatment%20Valve%20Project\">Discuss a Project<\/a>\r\n<\/div>\r\n<ul class=\"fwt-hero__meta\">\r\n<li>Application-based selection<\/li>\r\n<li>Pneumatic and electric actuation<\/li>\r\n<li>Drawings, CAD and inspection records<\/li>\r\n<\/ul>\r\n<\/div>\r\n<div aria-label=\"Featured valve products\" class=\"fwt-hero__products\">\r\n<figure class=\"fwt-hero-product\">\r\n<img decoding=\"async\" alt=\"Electric actuated butterfly valve\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/07\/electric-5.webp\"\/>\r\n<figcaption>\r\n<span>01<\/span>\r\n<div><strong>Automated Isolation<\/strong><small>Electric butterfly valve<\/small><\/div>\r\n<\/figcaption>\r\n<\/figure>\r\n<figure class=\"fwt-hero-product fwt-hero-product--compact\">\r\n<img decoding=\"async\" alt=\"Stainless steel swing check valve\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/07\/\u672a\u547d\u540d\u7684\u8bbe\u8ba1-9.webp\"\/>\r\n<figcaption>\r\n<span>02<\/span>\r\n<div><strong>Backflow Protection<\/strong><small>Stainless swing check valve<\/small><\/div>\r\n<\/figcaption>\r\n<\/figure>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section class=\"fwt-value-band\">\r\n<div class=\"fwt-container\">\r\n<div class=\"fwt-value-shell\">\r\n<div class=\"fwt-value-row\">\r\n<div class=\"fwt-value-item\">\r\n<b>01 \/ Engineering<\/b>\r\n<strong>Application-based selection<\/strong>\r\n<p>Valve type and materials matched to process conditions and equipment function.<\/p>\r\n<\/div>\r\n<div class=\"fwt-value-item\">\r\n<b>02 \/ Automation<\/b>\r\n<strong>Complete actuated packages<\/strong>\r\n<p>Actuator, solenoid, switches and fail-safe configuration reviewed as one package.<\/p>\r\n<\/div>\r\n<div class=\"fwt-value-item\">\r\n<b>03 \/ Documentation<\/b>\r\n<strong>Technical approval support<\/strong>\r\n<p>Datasheets, drawings, testing records and traceability prepared for project approval.<\/p>\r\n<\/div>\r\n<div class=\"fwt-value-item\">\r\n<b>04 \/ Supply<\/b>\r\n<strong>Repeatable equipment BOM<\/strong>\r\n<p>Stable specifications across project orders, repeat orders and spare-parts demand.<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section class=\"fwt-section fwt-section-white\">\r\n<div class=\"fwt-container\">\r\n<div class=\"fwt-balanced-heading\">\r\n<div>\r\n<span class=\"fwt-kicker\">Water Treatment Valve Solutions<\/span>\r\n<h2>Industrial Valves for Water and Wastewater Treatment Equipment<\/h2>\r\n<\/div>\r\n<div class=\"fwt-balanced-heading__copy\">\r\n<p>\r\n          Water treatment valves control, isolate and protect flow paths inside complete treatment systems.\r\n          For an equipment manufacturer, the valve must fit the installation space, match the piping standard,\r\n          resist the process media and integrate with the machine control system.\r\n        <\/p>\r\n<p>\r\n          We support OEM skid builders and system integrators working with filtration, reverse osmosis,\r\n          wastewater treatment, chemical dosing, desalination and packaged pumping equipment.\r\n        <\/p>\r\n<\/div>\r\n<\/div>\r\n<div class=\"fwt-coverage-line\">\r\n<strong>Application coverage<\/strong>\r\n<span>Water treatment valves<\/span>\r\n<span>Wastewater treatment valves<\/span>\r\n<span>RO system valves<\/span>\r\n<span>Filtration equipment valves<\/span>\r\n<span>Chemical dosing skid valves<\/span>\r\n<span>Desalination valves<\/span>\r\n<\/div>\r\n<div class=\"fwt-editorial-matrix\">\r\n<article class=\"fwt-editorial-cell\">\r\n<b>01<\/b>\r\n<h3>Butterfly valves<\/h3>\r\n<p>Compact isolation and backwash control for large-diameter water lines, filters and packaged treatment systems.<\/p>\r\n<\/article>\r\n<article class=\"fwt-editorial-cell\">\r\n<b>02<\/b>\r\n<h3>Ball valves<\/h3>\r\n<p>Tight shut-off for chemical dosing, drains, samples, bypasses and compact skid-mounted pipework.<\/p>\r\n<\/article>\r\n<article class=\"fwt-editorial-cell\">\r\n<b>03<\/b>\r\n<h3>Check valves<\/h3>\r\n<p>Reverse-flow protection for pumps, membranes, transfer lines and equipment discharge connections.<\/p>\r\n<\/article>\r\n<article class=\"fwt-editorial-cell\">\r\n<b>04<\/b>\r\n<h3>Diaphragm valves<\/h3>\r\n<p>Process isolation for corrosive dosing chemicals, clean water and high-purity treatment duties.<\/p>\r\n<\/article>\r\n<article class=\"fwt-editorial-cell\">\r\n<b>05<\/b>\r\n<h3>Knife gate and slurry valves<\/h3>\r\n<p>Solids-handling solutions for wastewater, sludge and abrasive media where clogging resistance matters.<\/p>\r\n<\/article>\r\n<article class=\"fwt-editorial-cell\">\r\n<b>06<\/b>\r\n<h3>Actuated valve assemblies<\/h3>\r\n<p>Pneumatic and electric packages with solenoids, switches, positioners and defined fail-safe functions.<\/p>\r\n<\/article>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section class=\"fwt-section fwt-section-soft\">\r\n<div class=\"fwt-container\">\r\n<div class=\"fwt-balanced-heading\">\r\n<div>\r\n<span class=\"fwt-kicker\">Equipment Applications<\/span>\r\n<h2>Designed Around Water Treatment Equipment<\/h2>\r\n<\/div>\r\n<div class=\"fwt-balanced-heading__copy\">\r\n<p>\r\n          A valve becomes part of the finished machine. Dimensions, pressure loss, operating torque,\r\n          media compatibility and control method all affect the final equipment design.\r\n        <\/p>\r\n<\/div>\r\n<\/div>\r\n<div class=\"fwt-application-grid-balanced\">\r\n<article>\r\n<span>01<\/span>\r\n<h3>Filtration Systems<\/h3>\r\n<p>Isolation, backwash, drain and bypass valves for media filters, bag filters and automatic filtration equipment.<\/p>\r\n<\/article>\r\n<article>\r\n<span>02<\/span>\r\n<h3>Reverse Osmosis Units<\/h3>\r\n<p>Valves for feedwater, concentrate, permeate, flushing and CIP circuits in membrane treatment systems.<\/p>\r\n<\/article>\r\n<article>\r\n<span>03<\/span>\r\n<h3>Chemical Dosing Skids<\/h3>\r\n<p>Corrosion-resistant options for acids, alkalis, coagulants, disinfectants and regeneration chemicals.<\/p>\r\n<\/article>\r\n<article>\r\n<span>04<\/span>\r\n<h3>Wastewater Equipment<\/h3>\r\n<p>Butterfly, check, knife gate and slurry valves for wastewater, sludge, aeration and solids handling.<\/p>\r\n<\/article>\r\n<article>\r\n<span>05<\/span>\r\n<h3>Pump Packages<\/h3>\r\n<p>Check, isolation and pressure-control valves for booster sets, transfer skids and packaged pumping systems.<\/p>\r\n<\/article>\r\n<article>\r\n<span>06<\/span>\r\n<h3>Desalination Systems<\/h3>\r\n<p>Material and sealing options for seawater, brine, chemical cleaning and high-chloride environments.<\/p>\r\n<\/article>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section class=\"fwt-valve-application-refined\">\r\n<div class=\"fwt-container\">\r\n<div class=\"fwt-valve-application-main\">\r\n<div class=\"fwt-valve-application-photo\">\r\n<img decoding=\"async\" alt=\"Modern industrial water treatment piping with visible valves and instrumentation\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/08\/hero-water-treatment-applications.webp?auto=format&amp;fit=crop&amp;fm=webp&amp;q=88&amp;w=1800\"\/>\r\n<\/div>\r\n<div class=\"fwt-valve-application-copy\">\r\n<span class=\"fwt-kicker fwt-light\">Valves in Water Treatment Equipment<\/span>\r\n<h2>Where Valves Operate Inside an RO Skid<\/h2>\r\n<p>\r\n          A single RO package contains several valve duties. Each position must be selected according\r\n          to flow function, pressure, media, available space, maintenance access and automation level.\r\n        <\/p>\r\n<div class=\"fwt-compact-duty-list\">\r\n<article><b>01<\/b><div><strong>Feed-water isolation<\/strong><span>Separates the skid from upstream piping and individual process stages.<\/span><\/div><\/article>\r\n<article><b>02<\/b><div><strong>Pump protection<\/strong><span>Isolation and check valves support safe pump operation and maintenance.<\/span><\/div><\/article>\r\n<article><b>03<\/b><div><strong>Membrane flow routing<\/strong><span>Controls feed, permeate, concentrate, flushing and cleaning circuits.<\/span><\/div><\/article>\r\n<article><b>04<\/b><div><strong>CIP and chemical cleaning<\/strong><span>Routes compatible cleaning fluids through membranes and pipework.<\/span><\/div><\/article>\r\n<article><b>05<\/b><div><strong>Drain, bypass and sampling<\/strong><span>Supports commissioning, depressurization, drainage and troubleshooting.<\/span><\/div><\/article>\r\n<\/div>\r\n<div class=\"fwt-application-note\">\r\n          Valve selection should be confirmed together with the full equipment BOM, pipe layout,\r\n          actuation accessories, inspection scope and replacement strategy.\r\n        <\/div>\r\n<\/div>\r\n\r\n<\/div>\r\n<\/section>\r\n<section class=\"fwt-section fwt-section--white\">\r\n<div class=\"fwt-shell\">\r\n<div class=\"fwt-procurement\">\r\n<div class=\"fwt-procurement__media\">\r\n<img decoding=\"async\" alt=\"Technician inspecting stainless steel filtration and process equipment\" loading=\"lazy\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2025\/05\/Fleyenda-SGS-inepction.webp?auto=format&amp;fit=crop&amp;fm=webp&amp;q=88&amp;w=1800\"\/>\r\n<div class=\"fwt-procurement__badge\">\r\n<span>OEM Integration<\/span>\r\n<strong>Valve selection must support the complete equipment layout.<\/strong>\r\n<\/div>\r\n<\/div>\r\n<div class=\"fwt-procurement__copy\">\r\n<span class=\"fwt-kicker\">Procurement Priorities<\/span>\r\n<h2>What Equipment Builders Need From a Valve Supplier<\/h2>\r\n<p>\r\n          Procurement teams evaluate cost and delivery. Engineers evaluate compatibility,\r\n          installation, performance and documentation. A qualified OEM valve package must support both.\r\n        <\/p>\r\n<div class=\"fwt-priority-list\">\r\n<article><b>01<\/b><div><strong>Material compatibility<\/strong><span>Body, trim and seat materials verified for water, chemicals, seawater, sludge and cleaning media.<\/span><\/div><\/article>\r\n<article><b>02<\/b><div><strong>Controlled dimensions<\/strong><span>Face-to-face, flange standards and actuator interfaces remain consistent across repeat orders.<\/span><\/div><\/article>\r\n<article><b>03<\/b><div><strong>Automation as one package<\/strong><span>Valve torque, actuator sizing, switches, solenoids and fail-safe position are reviewed together.<\/span><\/div><\/article>\r\n<article><b>04<\/b><div><strong>Inspection evidence<\/strong><span>Pressure tests, leakage tests, material certificates and traceability organized for project approval.<\/span><\/div><\/article>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section class=\"fwt-section fwt-section-soft\" id=\"featured-valves\">\r\n<div class=\"fwt-container\">\r\n<div class=\"fwt-section-head\">\r\n<div>\r\n<span class=\"fwt-kicker\">Featured Valve Types<\/span>\r\n<h2>Technical Product Data<\/h2>\r\n<\/div>\r\n<p>\r\n            The product drawings remain visual references, while the performance data,\r\n            materials, specifications and dimensions are now structured as searchable,\r\n            responsive HTML tables.\r\n          <\/p>\r\n<\/div>\r\n<article class=\"fwt-product-block\">\r\n<div class=\"fwt-product-overview\">\r\n<div class=\"fwt-product-copy\">\r\n<span class=\"fwt-product-type\">Check Valve for Water Treatment Systems<\/span>\r\n<h3>H44W ANSI Swing Check Valve<\/h3>\r\n<p>\r\n                The H44W ANSI swing check valve is designed for automatic reverse-flow prevention in\r\n                pump discharge lines, filtration systems, packaged pump stations and industrial water\r\n                treatment piping. Its flanged construction supports common ANSI pipeline layouts, while\r\n                multiple carbon-steel and stainless-steel body grades allow the valve to be selected for\r\n                clean water, process water, steam, oil and selected corrosive media.\r\n              <\/p>\r\n<p>\r\n                For equipment manufacturers, the main selection factors include pressure class, face-to-face\r\n                dimension, flow direction, installation orientation, minimum flow velocity and the potential\r\n                for water hammer. The valve can be considered where a robust mechanical check valve is required\r\n                without an external actuator or control signal.\r\n              <\/p>\r\n<div class=\"fwt-stat-grid\">\r\n<div class=\"fwt-stat\"><span>Pressure classes<\/span><strong>Class 150, 300, 600, 900, 1500 and 2500<\/strong><\/div>\r\n<div class=\"fwt-stat\"><span>Design<\/span><strong>BS 1868 \/ API 6D \/ ASME B16.34<\/strong><\/div>\r\n<div class=\"fwt-stat\"><span>Connection<\/span><strong>ASME B16.5 \/ ASME B16.47 Series A<\/strong><\/div>\r\n<div class=\"fwt-stat\"><span>Testing<\/span><strong>API 598 \/ API 6D<\/strong><\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"fwt-product-visuals\">\r\n<div class=\"fwt-product-photo-panel\">\r\n<!-- Replace with a real transparent-background H44W product image -->\r\n<img decoding=\"async\" alt=\"H44W swing check valve product image\" src=\"assets\/h44w-check-valve-product.png\"\/>\r\n<\/div>\r\n<div class=\"fwt-drawing-panel\">\r\n<img decoding=\"async\" alt=\"H44W swing check valve dimensional drawing\" src=\"assets\/h44w-check-valve-dimension-drawing.png\"\/>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"fwt-table-section\">\r\n<div class=\"fwt-table-title\">\r\n<h4>Performance Parameters<\/h4>\r\n<span>Pressure values in MPa<\/span>\r\n<\/div>\r\n<div class=\"fwt-table-scroll\">\r\n<table class=\"fwt-data-table fwt-wide\">\r\n<thead>\r\n<tr>\r\n<th>No.<\/th>\r\n<th class=\"fwt-wrap\">Parameter<\/th>\r\n<th>150 Lb<\/th>\r\n<th>300 Lb<\/th>\r\n<th>600 Lb<\/th>\r\n<th>900 Lb<\/th>\r\n<th>1500 Lb<\/th>\r\n<th>2500 Lb<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td>1<\/td>\r\n<th>Nominal pressure PN<\/th>\r\n<td>2.0<\/td><td>5.0<\/td><td>10.0<\/td><td>15.0<\/td><td>25.0<\/td><td>42.0<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>2<\/td>\r\n<th>Shell strength test pressure<\/th>\r\n<td colspan=\"6\">1.5 times the nominal pressure at room temperature<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>3<\/td>\r\n<th>High-pressure sealing test pressure<\/th>\r\n<td colspan=\"6\">1.1 times the nominal pressure at room temperature<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4<\/td>\r\n<th>Nominal pressure at room temperature<\/th>\r\n<td colspan=\"6\">According to the ASME B16.34 pressure-temperature rating<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n<\/div>\r\n<div class=\"fwt-table-section\">\r\n<div class=\"fwt-table-title\">\r\n<h4>Product Specification<\/h4>\r\n<span>Design and inspection standards<\/span>\r\n<\/div>\r\n<div class=\"fwt-spec-list\">\r\n<div><span>Design<\/span><strong>BS 1868 \/ API 6D \/ ASME B16.34<\/strong><\/div>\r\n<div><span>Face-to-face<\/span><strong>ASME B16.10<\/strong><\/div>\r\n<div><span>Connecting flange<\/span><strong>ASME B16.5 \/ ASME B16.47 Series A<\/strong><\/div>\r\n<div><span>Test and inspection<\/span><strong>API 598 \/ API 6D<\/strong><\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"fwt-table-section\">\r\n<div class=\"fwt-table-title\">\r\n<h4>Main Components and Materials<\/h4>\r\n<span>Material combinations by body grade<\/span>\r\n<\/div>\r\n<div class=\"fwt-table-scroll\">\r\n<table class=\"fwt-data-table fwt-xwide\">\r\n<thead>\r\n<tr>\r\n<th>Part<\/th>\r\n<th>WCB<\/th>\r\n<th>WC6<\/th>\r\n<th>CF8<\/th>\r\n<th>CF8M<\/th>\r\n<th>CF3<\/th>\r\n<th>CF3M<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr><th>Body<\/th><td>A216 WCB<\/td><td>A217 WC6<\/td><td>A351 CF8<\/td><td>A351 CF8M<\/td><td>A351 CF3<\/td><td>A351 CF3M<\/td><\/tr>\r\n<tr><th>Valve cover<\/th><td>A216 WCB<\/td><td>A217 WC6<\/td><td>A351 CF8<\/td><td>A351 CF8M<\/td><td>A351 CF3<\/td><td>A351 CF3M<\/td><\/tr>\r\n<tr><th>Valve disc<\/th><td>A216 WCB<\/td><td>A217 WC6<\/td><td>A351 CF8<\/td><td>A351 CF8M<\/td><td>A351 CF3<\/td><td>A351 CF3M<\/td><\/tr>\r\n<tr><th>Sealing face<\/th><td>13Cr \/ STL<\/td><td>STL<\/td><td>Body \/ STL<\/td><td>Body \/ STL<\/td><td>Body \/ STL<\/td><td>Body \/ STL<\/td><\/tr>\r\n<tr><th>Stem<\/th><td>A182 F6a<\/td><td>A182 F11<\/td><td>A182 F304<\/td><td>A182 F316<\/td><td>A182 F304L<\/td><td>A182 F316L<\/td><\/tr>\r\n<tr><th>Gasket<\/th><td>304 + flexible graphite \/ soft iron<\/td><td>304 + flexible graphite \/ F304<\/td><td>304 + flexible graphite \/ F304<\/td><td>316 + flexible graphite \/ F316<\/td><td>304L + flexible graphite \/ F304L<\/td><td>316L + flexible graphite \/ F316L<\/td><\/tr>\r\n<tr><th>Stud<\/th><td>A193 B7<\/td><td>A193 B16<\/td><td>A193 B8<\/td><td>A193 B8M<\/td><td>A193 B8<\/td><td>A193 B8M<\/td><\/tr>\r\n<tr><th>Nut<\/th><td>A194 2H<\/td><td>A194 4<\/td><td>A194 8<\/td><td>A194 8M<\/td><td>A194 8<\/td><td>A194 8M<\/td><\/tr>\r\n<tr><th>Temperature range<\/th><td>-29 to 425\u00b0C<\/td><td>-29 to 540\u00b0C<\/td><td>-46 to 425\u00b0C<\/td><td>-46 to 425\u00b0C<\/td><td>-46 to 425\u00b0C<\/td><td>-46 to 425\u00b0C<\/td><\/tr>\r\n<tr><th>Typical media<\/th><td>Water, steam and oil<\/td><td>Water and steam<\/td><td>Corrosive media<\/td><td>Corrosive media<\/td><td>Corrosive media<\/td><td>Corrosive media<\/td><\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n<\/div>\r\n<div class=\"fwt-table-section\">\r\n<div class=\"fwt-table-title\">\r\n<h4>Class 150 Flanged-End Dimensions<\/h4>\r\n<span>Dimensions in mm<\/span>\r\n<\/div>\r\n<div class=\"fwt-table-scroll\">\r\n<table class=\"fwt-data-table fwt-wide\">\r\n<thead>\r\n<tr>\r\n<th>Size<\/th><th>d<\/th><th>L<\/th><th>D<\/th><th>C<\/th><th>g<\/th><th>T<\/th><th>t<\/th><th>H<\/th><th>n-\u03a6<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr><th>1\/2\"<\/th><td>15<\/td><td>108<\/td><td>89<\/td><td>60.5<\/td><td>35<\/td><td>12<\/td><td>1.6<\/td><td>\u2013<\/td><td>4-15<\/td><\/tr>\r\n<tr><th>3\/4\"<\/th><td>20<\/td><td>117<\/td><td>98<\/td><td>70.0<\/td><td>43<\/td><td>12<\/td><td>1.6<\/td><td>\u2013<\/td><td>4-15<\/td><\/tr>\r\n<tr><th>1\"<\/th><td>25<\/td><td>127<\/td><td>108<\/td><td>79.5<\/td><td>51<\/td><td>12<\/td><td>1.6<\/td><td>\u2013<\/td><td>4-15<\/td><\/tr>\r\n<tr><th>1-1\/4\"<\/th><td>32<\/td><td>140<\/td><td>117<\/td><td>89<\/td><td>64<\/td><td>13<\/td><td>1.6<\/td><td>\u2013<\/td><td>4-15<\/td><\/tr>\r\n<tr><th>1-1\/2\"<\/th><td>40<\/td><td>165<\/td><td>127<\/td><td>98.5<\/td><td>73<\/td><td>15<\/td><td>1.6<\/td><td>\u2013<\/td><td>4-15<\/td><\/tr>\r\n<tr><th>2\"<\/th><td>50<\/td><td>203<\/td><td>152<\/td><td>120.5<\/td><td>92<\/td><td>16<\/td><td>1.6<\/td><td>161<\/td><td>4-19<\/td><\/tr>\r\n<tr><th>2-1\/2\"<\/th><td>65<\/td><td>216<\/td><td>178<\/td><td>139.5<\/td><td>105<\/td><td>18<\/td><td>1.6<\/td><td>180<\/td><td>4-19<\/td><\/tr>\r\n<tr><th>3\"<\/th><td>80<\/td><td>241<\/td><td>190<\/td><td>152.5<\/td><td>127<\/td><td>19<\/td><td>1.6<\/td><td>190<\/td><td>4-19<\/td><\/tr>\r\n<tr><th>4\"<\/th><td>100<\/td><td>292<\/td><td>229<\/td><td>190.5<\/td><td>157<\/td><td>24<\/td><td>1.6<\/td><td>203<\/td><td>8-19<\/td><\/tr>\r\n<tr><th>5\"<\/th><td>125<\/td><td>330<\/td><td>254<\/td><td>216<\/td><td>186<\/td><td>24<\/td><td>1.6<\/td><td>229<\/td><td>8-22<\/td><\/tr>\r\n<tr><th>6\"<\/th><td>150<\/td><td>356<\/td><td>279<\/td><td>241.5<\/td><td>216<\/td><td>26<\/td><td>1.6<\/td><td>257<\/td><td>8-22<\/td><\/tr>\r\n<tr><th>8\"<\/th><td>200<\/td><td>495<\/td><td>343<\/td><td>298.5<\/td><td>270<\/td><td>29<\/td><td>1.6<\/td><td>292<\/td><td>8-22<\/td><\/tr>\r\n<tr><th>10\"<\/th><td>250<\/td><td>622<\/td><td>406<\/td><td>362<\/td><td>324<\/td><td>31<\/td><td>1.6<\/td><td>355<\/td><td>12-25<\/td><\/tr>\r\n<tr><th>12\"<\/th><td>300<\/td><td>698<\/td><td>483<\/td><td>432<\/td><td>381<\/td><td>32<\/td><td>1.6<\/td><td>396<\/td><td>12-25<\/td><\/tr>\r\n<tr><th>14\"<\/th><td>350<\/td><td>787<\/td><td>533<\/td><td>476<\/td><td>413<\/td><td>35<\/td><td>1.6<\/td><td>445<\/td><td>12-29<\/td><\/tr>\r\n<tr><th>16\"<\/th><td>400<\/td><td>864<\/td><td>597<\/td><td>540<\/td><td>470<\/td><td>37<\/td><td>1.6<\/td><td>490<\/td><td>16-29<\/td><\/tr>\r\n<tr><th>18\"<\/th><td>450<\/td><td>978<\/td><td>635<\/td><td>578<\/td><td>533<\/td><td>40<\/td><td>1.6<\/td><td>520<\/td><td>16-32<\/td><\/tr>\r\n<tr><th>20\"<\/th><td>500<\/td><td>978<\/td><td>698<\/td><td>635<\/td><td>584<\/td><td>43<\/td><td>1.6<\/td><td>546<\/td><td>20-32<\/td><\/tr>\r\n<tr><th>24\"<\/th><td>600<\/td><td>1295<\/td><td>813<\/td><td>749.5<\/td><td>692<\/td><td>49<\/td><td>1.6<\/td><td>880<\/td><td>20-35<\/td><\/tr>\r\n<tr><th>26\"<\/th><td>650<\/td><td>1295<\/td><td>786<\/td><td>744.5<\/td><td>711<\/td><td>41<\/td><td>1.6<\/td><td>910<\/td><td>36-22<\/td><\/tr>\r\n<tr><th>28\"<\/th><td>700<\/td><td>1448<\/td><td>837<\/td><td>795.5<\/td><td>762<\/td><td>44<\/td><td>1.6<\/td><td>935<\/td><td>40-22<\/td><\/tr>\r\n<tr><th>30\"<\/th><td>750<\/td><td>1524<\/td><td>887<\/td><td>846.0<\/td><td>813<\/td><td>44<\/td><td>1.6<\/td><td>970<\/td><td>44-22<\/td><\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n<\/div>\r\n<\/article>\r\n<article class=\"fwt-product-block\">\r\n<div class=\"fwt-product-overview\">\r\n<div class=\"fwt-product-copy\">\r\n<span class=\"fwt-product-type\">Butterfly Valve for Water Treatment Equipment<\/span>\r\n<h3>SD343H Telescopic Butterfly Valve<\/h3>\r\n<p>\r\n                The SD343H telescopic butterfly valve combines a flanged butterfly valve and an axial\r\n                expansion section in one assembly. It is intended for water treatment pipelines where\r\n                shut-off or regulation must be combined with installation adjustment, pipeline movement\r\n                compensation or easier valve removal.\r\n              <\/p>\r\n<p>\r\n                This configuration can be used in water supply, drainage, filtration, cooling-water and\r\n                industrial treatment systems. Equipment designers should confirm the available axial\r\n                adjustment range, flange dimensions, pipeline restraint, valve operating torque and whether\r\n                the valve is intended for isolation or throttling duty.\r\n              <\/p>\r\n<div class=\"fwt-stat-grid\">\r\n<div class=\"fwt-stat\"><span>Reference model<\/span><strong>SD343H-10C<\/strong><\/div>\r\n<div class=\"fwt-stat\"><span>Nominal size<\/span><strong>DN50 to DN600<\/strong><\/div>\r\n<div class=\"fwt-stat\"><span>Design<\/span><strong>GB\/T 12238-1989<\/strong><\/div>\r\n<div class=\"fwt-stat\"><span>Inspection and test<\/span><strong>JB\/T 9092-1999<\/strong><\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"fwt-product-visuals\">\r\n<div class=\"fwt-product-photo-panel\">\r\n<!-- Replace with a real transparent-background SD343H product image -->\r\n<img decoding=\"async\" alt=\"SD343H telescopic butterfly valve product image\" src=\"assets\/sd343h-butterfly-valve-product.svg\"\/>\r\n<\/div>\r\n<div class=\"fwt-drawing-panel\">\r\n<img decoding=\"async\" alt=\"SD343H telescopic butterfly valve dimensional drawing\" src=\"assets\/sd343h-butterfly-valve-dimension-drawing.png\"\/>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"fwt-table-section\">\r\n<div class=\"fwt-table-title\">\r\n<h4>Application Specification<\/h4>\r\n<span>Reference standards<\/span>\r\n<\/div>\r\n<div class=\"fwt-spec-list\">\r\n<div><span>Design and manufacture<\/span><strong>GB\/T 12238-1989<\/strong><\/div>\r\n<div><span>Face-to-face<\/span><strong>GB\/T 12221-2005<\/strong><\/div>\r\n<div><span>Connecting flange<\/span><strong>GB\/T 9113-2000<\/strong><\/div>\r\n<div><span>Inspection and test<\/span><strong>JB\/T 9092-1999<\/strong><\/div>\r\n<\/div>\r\n<\/div>\r\n<div class=\"fwt-feature-copy\">\r\n<h4>Product Characteristics and Uses<\/h4>\r\n<p>\r\n              This butterfly valve combines a butterfly valve and expansion section in one assembly.\r\n              It permits axial adjustment within a defined range, helps absorb thermal expansion and\r\n              contraction, reduces the effect of pipeline vibration and simplifies installation or removal.\r\n              Typical applications include water treatment, water supply and drainage, industrial piping\r\n              and other systems requiring shut-off or flow regulation.\r\n            <\/p>\r\n<\/div>\r\n<div class=\"fwt-table-section\">\r\n<div class=\"fwt-table-title\">\r\n<h4>SD343H-10C Dimensions<\/h4>\r\n<span>Dimensions in mm<\/span>\r\n<\/div>\r\n<div class=\"fwt-table-scroll\">\r\n<table class=\"fwt-data-table fwt-xwide\">\r\n<thead>\r\n<tr>\r\n<th>DN<\/th><th>L<\/th><th>Lmax<\/th><th>Lmin<\/th><th>D<\/th><th>D1<\/th><th>D2<\/th><th>D0<\/th><th>b<\/th><th>H<\/th><th>H1<\/th><th>W<\/th><th>W1<\/th><th>Z-\u03a6d<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr><th>50<\/th><td>150<\/td><td>163<\/td><td>138<\/td><td>165<\/td><td>125<\/td><td>99<\/td><td>157<\/td><td>20<\/td><td>360<\/td><td>112<\/td><td>195<\/td><td>185<\/td><td>4-18<\/td><\/tr>\r\n<tr><th>65<\/th><td>170<\/td><td>188<\/td><td>158<\/td><td>185<\/td><td>145<\/td><td>118<\/td><td>157<\/td><td>20<\/td><td>380<\/td><td>115<\/td><td>195<\/td><td>185<\/td><td>4-18<\/td><\/tr>\r\n<tr><th>80<\/th><td>180<\/td><td>192<\/td><td>162<\/td><td>200<\/td><td>160<\/td><td>132<\/td><td>157<\/td><td>20<\/td><td>455<\/td><td>120<\/td><td>195<\/td><td>185<\/td><td>8-18<\/td><\/tr>\r\n<tr><th>100<\/th><td>190<\/td><td>225<\/td><td>180<\/td><td>220<\/td><td>180<\/td><td>156<\/td><td>157<\/td><td>22<\/td><td>490<\/td><td>140<\/td><td>195<\/td><td>185<\/td><td>8-18<\/td><\/tr>\r\n<tr><th>125<\/th><td>200<\/td><td>235<\/td><td>190<\/td><td>250<\/td><td>210<\/td><td>184<\/td><td>205<\/td><td>22<\/td><td>490<\/td><td>170<\/td><td>268<\/td><td>250<\/td><td>8-18<\/td><\/tr>\r\n<tr><th>150<\/th><td>210<\/td><td>240<\/td><td>195<\/td><td>285<\/td><td>240<\/td><td>211<\/td><td>205<\/td><td>24<\/td><td>630<\/td><td>180<\/td><td>268<\/td><td>250<\/td><td>8-22<\/td><\/tr>\r\n<tr><th>200<\/th><td>230<\/td><td>265<\/td><td>215<\/td><td>340<\/td><td>295<\/td><td>266<\/td><td>235<\/td><td>24<\/td><td>690<\/td><td>210<\/td><td>305<\/td><td>300<\/td><td>8-22<\/td><\/tr>\r\n<tr><th>250<\/th><td>250<\/td><td>285<\/td><td>235<\/td><td>395<\/td><td>350<\/td><td>319<\/td><td>235<\/td><td>26<\/td><td>830<\/td><td>240<\/td><td>305<\/td><td>300<\/td><td>12-22<\/td><\/tr>\r\n<tr><th>300<\/th><td>270<\/td><td>302<\/td><td>252<\/td><td>445<\/td><td>400<\/td><td>370<\/td><td>296<\/td><td>26<\/td><td>930<\/td><td>290<\/td><td>415<\/td><td>400<\/td><td>12-22<\/td><\/tr>\r\n<tr><th>350<\/th><td>290<\/td><td>321<\/td><td>271<\/td><td>505<\/td><td>460<\/td><td>429<\/td><td>296<\/td><td>26<\/td><td>1010<\/td><td>320<\/td><td>415<\/td><td>400<\/td><td>16-22<\/td><\/tr>\r\n<tr><th>400<\/th><td>310<\/td><td>343<\/td><td>283<\/td><td>565<\/td><td>515<\/td><td>480<\/td><td>296<\/td><td>26<\/td><td>1070<\/td><td>350<\/td><td>415<\/td><td>400<\/td><td>16-26<\/td><\/tr>\r\n<tr><th>450<\/th><td>330<\/td><td>360<\/td><td>300<\/td><td>615<\/td><td>565<\/td><td>530<\/td><td>400<\/td><td>28<\/td><td>1140<\/td><td>380<\/td><td>475<\/td><td>420<\/td><td>20-26<\/td><\/tr>\r\n<tr><th>500<\/th><td>350<\/td><td>380<\/td><td>320<\/td><td>670<\/td><td>620<\/td><td>582<\/td><td>400<\/td><td>28<\/td><td>1200<\/td><td>410<\/td><td>475<\/td><td>420<\/td><td>20-26<\/td><\/tr>\r\n<tr><th>600<\/th><td>390<\/td><td>425<\/td><td>365<\/td><td>780<\/td><td>725<\/td><td>682<\/td><td>400<\/td><td>34<\/td><td>1340<\/td><td>470<\/td><td>475<\/td><td>420<\/td><td>20-30<\/td><\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n<\/div>\r\n<\/article>\r\n<p class=\"fwt-note\">\r\n          The numerical data has been transcribed from the supplied catalogue screenshots.\r\n          Please verify all figures against the final approved product catalogue before publication.\r\n        <\/p>\r\n<\/div>\r\n<\/section>\r\n<section class=\"fwt-section fwt-section-soft\">\r\n<div class=\"fwt-container\">\r\n<div class=\"fwt-balanced-heading\">\r\n<div>\r\n<span class=\"fwt-kicker\">Valve Selection for Equipment Manufacturers<\/span>\r\n<h2>How to Specify Water Treatment Valves for an OEM Project<\/h2>\r\n<\/div>\r\n<div class=\"fwt-balanced-heading__copy\">\r\n<p>\r\n          A complete technical brief reduces quotation changes, unsuitable materials,\r\n          actuator sizing errors and installation conflicts.\r\n        <\/p>\r\n<\/div>\r\n<\/div>\r\n<div class=\"fwt-guide-grid-balanced\">\r\n<article><b>01<\/b><h3>Define the valve function<\/h3><p>Isolation, throttling, reverse-flow protection, pressure control, draining, sampling, backwash or sequencing.<\/p><\/article>\r\n<article><b>02<\/b><h3>Identify the exact media<\/h3><p>Water quality, chemical name, concentration, chloride content, solids, pH and cleaning fluids.<\/p><\/article>\r\n<article><b>03<\/b><h3>Confirm operating conditions<\/h3><p>Normal and maximum pressure, temperature, flow rate, cycle frequency, surges and vacuum conditions.<\/p><\/article>\r\n<article><b>04<\/b><h3>Specify dimensional standards<\/h3><p>Nominal size, end connection, face-to-face requirement, installation envelope and actuator orientation.<\/p><\/article>\r\n<article><b>05<\/b><h3>Define automation requirements<\/h3><p>Air pressure or voltage, opening time, fail position, control signal, enclosure and feedback.<\/p><\/article>\r\n<article><b>06<\/b><h3>List approval documents<\/h3><p>Datasheets, drawings, CAD files, material certificates, pressure tests and customer part numbers.<\/p><\/article>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section class=\"fwt-section fwt-section-white\">\r\n<div class=\"fwt-container\">\r\n<div class=\"fwt-section-head\">\r\n<div>\r\n<span class=\"fwt-kicker\">Selection Guidance<\/span>\r\n<h2>Match Valve Construction to the Process<\/h2>\r\n<\/div>\r\n<p>\r\n            Media chemistry, solids content, pressure, temperature, cycle frequency and control\r\n            function should all be evaluated before confirming valve type and material.\r\n          <\/p>\r\n<\/div>\r\n<div class=\"fwt-matrix-wrap\">\r\n<table class=\"fwt-matrix\">\r\n<thead>\r\n<tr><th>Application<\/th><th>Typical media<\/th><th>Common valve types<\/th><th>Key purchasing concerns<\/th><\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr><td>RO and membrane systems<\/td><td>Feedwater, permeate, concentrate, CIP fluid<\/td><td>Butterfly, ball, check, diaphragm<\/td><td>Compact size, leakage performance, corrosion resistance and automated cycling<\/td><\/tr>\r\n<tr><td>Chemical dosing skids<\/td><td>Acid, alkali, sodium hypochlorite, coagulant<\/td><td>Diaphragm, ball, needle, check<\/td><td>Material compatibility, low dead volume and leak prevention<\/td><\/tr>\r\n<tr><td>Filtration equipment<\/td><td>Raw water, treated water, backwash water<\/td><td>Butterfly, ball, check<\/td><td>Cycle life, actuator sizing and repeatable positioning<\/td><\/tr>\r\n<tr><td>Wastewater and sludge<\/td><td>Wastewater, sludge, solids-bearing fluid<\/td><td>Knife gate, butterfly, pinch, check<\/td><td>Clogging resistance, abrasion and maintenance access<\/td><\/tr>\r\n<tr><td>Pump packages<\/td><td>Clean water, process water, seawater<\/td><td>Check, butterfly, gate, control<\/td><td>Water hammer, reverse flow, pressure loss and installation orientation<\/td><\/tr>\r\n<tr><td>Desalination systems<\/td><td>Seawater, brine, cleaning chemicals<\/td><td>Butterfly, ball, check, diaphragm<\/td><td>Chloride corrosion, elastomer selection and high-pressure service<\/td><\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section class=\"fwt-section fwt-section-white\">\r\n<div class=\"fwt-container\">\r\n<div class=\"fwt-balanced-heading\">\r\n<div>\r\n<span class=\"fwt-kicker\">OEM Support<\/span>\r\n<h2>Built for Equipment BOMs, Not One-Off Valve Sales<\/h2>\r\n<\/div>\r\n<div class=\"fwt-balanced-heading__copy\">\r\n<p>\r\n          The objective is to reduce design changes, simplify sourcing and maintain stable\r\n          valve configurations across multiple machines, skids and repeat projects.\r\n        <\/p>\r\n<\/div>\r\n<\/div>\r\n<div class=\"fwt-oem-grid-balanced\">\r\n<article><h3>Engineering review<\/h3><p>Review media, pressure, temperature, connection, orientation, cycle frequency and fail-safe requirements.<\/p><\/article>\r\n<article><h3>BOM standardization<\/h3><p>Align materials, seats, actuator sizes, accessories and customer part numbers across equipment models.<\/p><\/article>\r\n<article><h3>Technical documentation<\/h3><p>Datasheets, dimension drawings, CAD or STEP files, manuals and project document packages.<\/p><\/article>\r\n<article><h3>Inspection and traceability<\/h3><p>Pressure and leakage test records, material certificates, inspection photos and batch traceability.<\/p><\/article>\r\n<article><h3>Actuated valve assembly<\/h3><p>Pneumatic or electric actuator matching with solenoids, limit switches, positioners and fail-safe functions.<\/p><\/article>\r\n<article><h3>Project-based supply<\/h3><p>Mixed sizes, staged deliveries, customer labels, spare-parts planning and repeat-order control.<\/p><\/article>\r\n<\/div>\r\n<div class=\"fwt-wide-seo-copy\">\r\n<h3>OEM Water Treatment Valve Supply for Repeat Production<\/h3>\r\n<div>\r\n<p>\r\n          A repeatable OEM valve package can include butterfly valves, ball valves, check valves,\r\n          diaphragm valves and actuated assemblies organized around the equipment BOM. Standardized\r\n          materials, dimensions, actuator accessories and inspection requirements help reduce\r\n          engineering changes and simplify purchasing.\r\n        <\/p>\r\n<p>\r\n          Typical applications include industrial water treatment systems, wastewater equipment,\r\n          RO skids, membrane filtration, chemical dosing units, desalination equipment, pump packages,\r\n          backwash systems, water recycling systems and packaged treatment plants.\r\n        <\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section class=\"fwt-section fwt-section-deep\">\r\n<div class=\"fwt-container\">\r\n<span class=\"fwt-kicker fwt-light\">Specification Workflow<\/span>\r\n<h2>From Equipment Parameters to a Confirmed Valve Package<\/h2>\r\n<p class=\"fwt-intro\" style=\"color: rgba(255,255,255,.68);\">\r\n          A structured technical review helps reduce unsuitable materials, oversized actuators,\r\n          installation conflicts and last-minute BOM changes.\r\n        <\/p>\r\n<div class=\"fwt-process-row\">\r\n<article class=\"fwt-process-step\"><b>01<\/b><h3>Share the application<\/h3><p>Equipment type, flow function, quantity and project location.<\/p><\/article>\r\n<article class=\"fwt-process-step\"><b>02<\/b><h3>Confirm conditions<\/h3><p>Media, concentration, pressure, temperature, solids and cycle frequency.<\/p><\/article>\r\n<article class=\"fwt-process-step\"><b>03<\/b><h3>Select construction<\/h3><p>Valve type, body, trim, seat, connection and applicable standards.<\/p><\/article>\r\n<article class=\"fwt-process-step\"><b>04<\/b><h3>Match automation<\/h3><p>Actuator torque, power supply, air pressure, feedback and fail position.<\/p><\/article>\r\n<article class=\"fwt-process-step\"><b>05<\/b><h3>Approve documents<\/h3><p>Datasheet, drawing, customer part number, test scope and delivery plan.<\/p><\/article>\r\n<\/div>\r\n<\/div>\r\n<\/section>\r\n<section class=\"fwt-section fwt-section-soft\">\r\n<div class=\"fwt-container\">\r\n<div class=\"fwt-balanced-heading\">\r\n<div>\r\n<span class=\"fwt-kicker\">FAQ<\/span>\r\n<h2>Water Treatment Valve Questions<\/h2>\r\n<\/div>\r\n<div class=\"fwt-balanced-heading__copy\">\r\n<p>Common questions from equipment manufacturers, process engineers, system integrators and purchasing teams.<\/p>\r\n<\/div>\r\n<\/div>\r\n<div class=\"fwt-faq-grid-balanced\"><div class=\"fwt-faq-column\"><details><summary>Which valves are commonly used in water treatment equipment?<\/summary><p>Butterfly, ball, check, diaphragm, knife gate and control valves are commonly used. The correct type depends on whether the valve provides isolation, regulation, reverse-flow protection, chemical dosing or solids handling.<\/p><\/details><details><summary>How should valves be selected for chemical dosing skids?<\/summary><p>Confirm the exact chemical, concentration, temperature and pressure before choosing body and seat materials.<\/p><\/details><details><summary>What documents do equipment manufacturers normally request?<\/summary><p>Typical requirements include datasheets, dimensional drawings, CAD files, pressure test reports, material certificates, inspection records and installation manuals.<\/p><\/details><details><summary>What information is needed to quote valves for a water treatment skid?<\/summary><p>Provide valve type or function, size, pressure, temperature, media, body and seat preference, connection standard, actuation requirements, quantity, drawing requirements and the equipment or project delivery schedule.<\/p><\/details><\/div><div class=\"fwt-faq-column\"><details><summary>What valves are suitable for reverse osmosis systems?<\/summary><p>RO systems often use compact butterfly or ball valves for isolation, check valves for reverse-flow protection and diaphragm valves for chemical dosing or CIP circuits.<\/p><\/details><details><summary>Can automated valves be supplied for filtration systems?<\/summary><p>Yes. Pneumatic or electric butterfly and ball valve packages can be configured with solenoid valves, limit switches, positioners and fail-safe functions.<\/p><\/details><details><summary>Which materials are commonly used for water treatment valves?<\/summary><p>Common options include carbon steel, ductile iron, stainless steel, PVC, CPVC, PP and lined constructions. Seats and seals may include EPDM, NBR, FKM or PTFE. The correct selection depends on water chemistry, chemical concentration, temperature, pressure and required service life.<\/p><\/details><\/div><\/div>\r\n<\/div>\r\n<\/section>\r\n<section class=\"fwt-cta\">\r\n<div class=\"fwt-shell fwt-cta__inner\">\r\n<span class=\"fwt-kicker fwt-kicker--light\">Project Enquiry<\/span>\r\n<h2>Need a Valve Package for Your Water Treatment Equipment?<\/h2>\r\n<p>\r\n      Share the equipment type, media, pressure, temperature, size range and preferred automation method.\r\n      We can review the application around your equipment BOM.\r\n    <\/p>\r\n<a class=\"fwt-btn fwt-btn--light fwt-cta__button\" href=\"mailto:inquiry@fleyendaflow.com?subject=Water%20Treatment%20Valve%20Project\">\r\n      inquiry@fleyendaflow.com\r\n    <\/a>\r\n<\/div>\r\n<\/section>\r\n<\/main>\r\n<\/body>\r\n<\/html>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>OEM Valve Solutions Water Treatment Valves for Equipment Manufacturers Industrial valve solutions for filtration systems, reverse osmosis units, chemical dosing skids, wastewater treatment equipment, desalination packages and packaged pump systems. Engineered around your media, operating conditions, installation space and equipment BOM. Explore Valve Options Discuss a Project Application-based selection Pneumatic and electric actuation Drawings, CAD and inspection records 01 Automated IsolationElectric butterfly valve 02 Backflow ProtectionStainless swing check valve 01 \/ Engineering Application-based selection Valve type and materials matched to process conditions and equipment function. 02 \/ Automation Complete actuated packages Actuator, solenoid, switches and fail-safe configuration reviewed as one package. 03 \/ Documentation Technical approval support Datasheets, drawings, testing records and traceability prepared for project approval. 04 \/ Supply Repeatable equipment BOM Stable specifications across project orders, repeat orders and spare-parts demand. Water Treatment Valve Solutions Industrial Valves for Water and Wastewater Treatment Equipment Water treatment valves control, isolate and protect flow paths inside complete treatment systems. For an equipment manufacturer, the valve must fit the installation space, match the piping standard, resist the process media and integrate with the machine control system. We support OEM skid builders and system integrators working with filtration, reverse osmosis, wastewater treatment, chemical dosing, desalination and packaged pumping equipment. Application coverage Water treatment valves Wastewater treatment valves RO system valves Filtration equipment valves Chemical dosing skid valves Desalination valves 01 Butterfly valves Compact isolation and backwash control for large-diameter water lines, filters and packaged treatment systems. 02 Ball valves Tight shut-off for chemical dosing, drains, samples, bypasses and compact skid-mounted pipework. 03 Check valves Reverse-flow protection for pumps, membranes, transfer lines and equipment discharge connections. 04 Diaphragm valves Process isolation for corrosive dosing chemicals, clean water and high-purity treatment duties. 05 Knife gate and slurry valves Solids-handling solutions for wastewater, sludge and abrasive media where clogging resistance matters. 06 Actuated valve assemblies Pneumatic and electric packages with solenoids, switches, positioners and defined fail-safe functions. Equipment Applications Designed Around Water Treatment Equipment A valve becomes part of the finished machine. Dimensions, pressure loss, operating torque, media compatibility and control method all affect the final equipment design. 01 Filtration Systems Isolation, backwash, drain and bypass valves for media filters, bag filters and automatic filtration equipment. 02 Reverse Osmosis Units Valves for feedwater, concentrate, permeate, flushing and CIP circuits in membrane treatment systems. 03 Chemical Dosing Skids Corrosion-resistant options for acids, alkalis, coagulants, disinfectants and regeneration chemicals. 04 Wastewater Equipment Butterfly, check, knife gate and slurry valves for wastewater, sludge, aeration and solids handling. 05 Pump Packages Check, isolation and pressure-control valves for booster sets, transfer skids and packaged pumping systems. 06 Desalination Systems Material and sealing options for seawater, brine, chemical cleaning and high-chloride environments. Valves in Water Treatment Equipment Where Valves Operate Inside an RO Skid A single RO package contains several valve duties. Each position must be selected according to flow function, pressure, media, available space, maintenance access and automation level. 01Feed-water isolationSeparates the skid from upstream piping and individual process stages. 02Pump protectionIsolation and check valves support safe pump operation and maintenance. 03Membrane flow routingControls feed, permeate, concentrate, flushing and cleaning circuits. 04CIP and chemical cleaningRoutes compatible cleaning fluids through membranes and pipework. 05Drain, bypass and samplingSupports commissioning, depressurization, drainage and troubleshooting. Valve selection should be confirmed together with the full equipment BOM, pipe layout, actuation accessories, inspection scope and replacement strategy. OEM Integration Valve selection must support the complete equipment layout. Procurement Priorities What Equipment Builders Need From a Valve Supplier Procurement teams evaluate cost and delivery. Engineers evaluate compatibility, installation, performance and documentation. A qualified OEM valve package must support both. 01Material compatibilityBody, trim and seat materials verified for water, chemicals, seawater, sludge and cleaning media. 02Controlled dimensionsFace-to-face, flange standards and actuator interfaces remain consistent across repeat orders. 03Automation as one packageValve torque, actuator sizing, switches, solenoids and fail-safe position are reviewed together. 04Inspection evidencePressure tests, leakage tests, material certificates and traceability organized for project approval. Featured Valve Types Technical Product Data The product drawings remain visual references, while the performance data, materials, specifications and dimensions are now structured as searchable, responsive HTML tables. Check Valve for Water Treatment Systems H44W ANSI Swing Check Valve The H44W ANSI swing check valve is designed for automatic reverse-flow prevention in pump discharge lines, filtration systems, packaged pump stations and industrial water treatment piping. Its flanged construction supports common ANSI pipeline layouts, while multiple carbon-steel and stainless-steel body grades allow the valve to be selected for clean water, process water, steam, oil and selected corrosive media. For equipment manufacturers, the main selection factors include pressure class, face-to-face dimension, flow direction, installation orientation, minimum flow velocity and the potential for water hammer. The valve can be considered where a robust mechanical check valve is required without an external actuator or control signal. Pressure classesClass 150, 300, 600, 900, 1500 and 2500 DesignBS 1868 \/ API 6D \/ ASME B16.34 ConnectionASME B16.5 \/ ASME B16.47 Series A TestingAPI 598 \/ API 6D Performance Parameters Pressure values in MPa No. Parameter 150 Lb 300 Lb 600 Lb 900 Lb 1500 Lb 2500 Lb 1 Nominal pressure PN 2.0 5.0 10.0 15.0 25.0 42.0 2 Shell strength test pressure 1.5 times the nominal pressure at room temperature 3 High-pressure sealing test pressure 1.1 times the nominal pressure at room temperature 4 Nominal pressure at room temperature According to the ASME B16.34 pressure-temperature rating Product Specification Design and inspection standards DesignBS 1868 \/ API 6D \/ ASME B16.34 Face-to-faceASME B16.10 Connecting flangeASME B16.5 \/ ASME B16.47 Series A Test and inspectionAPI 598 \/ API 6D Main Components and Materials Material combinations by body grade Part WCB WC6 CF8 CF8M CF3 CF3M Body A216 WCB A217 WC6 A351 CF8 A351 CF8M A351 CF3 A351 CF3M Valve cover A216 WCB A217 WC6 A351 CF8 A351 CF8M A351 CF3 A351 CF3M Valve disc A216 WCB A217 WC6 A351 CF8 A351 CF8M A351 CF3 A351 CF3M Sealing face 13Cr \/ STL STL Body \/ STL Body \/ STL Body \/ STL<\/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\/pt\/wp-json\/wp\/v2\/pages\/11383","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fleyendavalve.com\/pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.fleyendavalve.com\/pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.fleyendavalve.com\/pt\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fleyendavalve.com\/pt\/wp-json\/wp\/v2\/comments?post=11383"}],"version-history":[{"count":4,"href":"https:\/\/www.fleyendavalve.com\/pt\/wp-json\/wp\/v2\/pages\/11383\/revisions"}],"predecessor-version":[{"id":11394,"href":"https:\/\/www.fleyendavalve.com\/pt\/wp-json\/wp\/v2\/pages\/11383\/revisions\/11394"}],"wp:attachment":[{"href":"https:\/\/www.fleyendavalve.com\/pt\/wp-json\/wp\/v2\/media?parent=11383"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}