{"id":3844,"date":"2025-10-17T09:16:35","date_gmt":"2025-10-17T01:16:35","guid":{"rendered":"https:\/\/ballvalves.tw\/?post_type=product&#038;p=3844"},"modified":"2026-09-05T23:14:44","modified_gmt":"2026-09-05T15:14:44","slug":"valvola-di-ritegno-filettata","status":"publish","type":"product","link":"https:\/\/ballvalves.tw\/it\/product\/threaded-check-valve\/","title":{"rendered":"Stainless Steel Swing Check Valve \u2013 Threaded PT, 1\/2\u2033\u20133\u2033, 200 WOG"},"content":{"rendered":"<div style=\"display:flex;flex-wrap:wrap;gap:14px;margin:18px 0\">\n<a href=\"https:\/\/ballvalves.tw\/wp-content\/uploads\/2025\/10\/Swing-Check-Valve-PT.pdf\" target=\"_blank\" rel=\"noopener\" style=\"flex:0 1 200px;background:#ffffff;border:1px solid #dddddd;border-radius:8px;padding:18px;text-decoration:none\"><span style=\"display:inline-block;background:#c62828;color:#ffffff !important;font-size:11px;font-weight:700;letter-spacing:.5px;padding:2px 8px;border-radius:3px\">PDF<\/span><span style=\"display:block;margin:10px 0 2px;font-size:16px;font-weight:700;color:#1f1f1f !important\">Controllo dell'oscillazione<\/span><span style=\"display:block;font-size:13px;color:#777777 !important\">Filettatura PT \u00b7 Scheda tecnica delle dimensioni<\/span><span style=\"display:block;margin-top:12px;font-size:14px;font-weight:600;color:#1f1f1f !important\">Scarica \u2193<\/span><\/a>\n<\/div>\n<h2>Descrizione del prodotto<\/h2>\n<p>The YZNG TRONG SC swing check valve is a stainless steel check valve (non-return valve) with a hinged disc that swings open under forward flow and drops shut when flow stops or reverses \u2014 preventing backflow with no power and no operator. Rated 200 WOG and tested to API 598, the threaded body installs inline on water, oil, gas and other liquid lines.<\/p>\n<p>The body is cast 316 stainless steel (ASTM A351 CF8M) with female PT (taper pipe) threaded ends, sizes 1\/2\u2033 to 3\u2033. NPT and PF threads, and a CF8 (cast 304) body, can be made to order. On pump duty it pairs naturally with our <a href=\"https:\/\/ballvalves.tw\/it\/prodotto\/filtro-di-tipo-y-800-wog\/\">316 Y type strainer<\/a> \u2014 strainer on the suction side, check valve on the discharge side.<\/p>\n<h2>Come funziona lo Swing Check<\/h2>\n<ul>\n<li><b>Prevenzione automatica del riflusso:<\/b> the hinged disc opens with forward flow and closes when flow stops \u2014 no actuator or power needed.<\/li>\n<li><b>Bassa resistenza:<\/b> the swing disc opens clear of the flow path, so pressure drop stays low.<\/li>\n<li><b>Acciaio inossidabile 316 (CF8M):<\/b> corrosion-resistant for water, chemical and marine service.<\/li>\n<\/ul>\n<h2>Swing or Silent \u2014 Which Check Valve?<\/h2>\n<table style=\"border-collapse:collapse;width:100%;margin:12px 0\">\n<thead>\n<tr>\n<th style=\"border:1px solid #dddddd;padding:8px;text-align:left\"><\/th>\n<th style=\"border:1px solid #dddddd;padding:8px;text-align:left\">Swing check (this valve)<\/th>\n<th style=\"border:1px solid #dddddd;padding:8px;text-align:left\">Silent \/ spring check<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Azione di chiusura<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">La forza di gravit\u00e0 e il flusso inverso fanno chiudere il disco incernierato<\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">A spring closes the valve before flow fully reverses (non-slam)<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Caduta di pressione<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">Basso \u2014 il disco non entra in contatto con la canna<\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">Pi\u00f9 in alto \u2014 la molla si trova nel percorso del flusso<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Ideale per<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">Condutture generali per acqua, petrolio e gas in cui \u00e8 importante una bassa perdita di carico<\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">Scarico della pompa e tubazioni soggette a colpi d'ariete<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Need the spring type? See our <a href=\"https:\/\/ballvalves.tw\/it\/prodotto\/valvola-di-ritegno-silenziosa\/\">304 one-piece silent check valve<\/a>. Need flanged ends instead of threads? See the <a href=\"https:\/\/ballvalves.tw\/it\/prodotto\/valvola-di-ritegno-flangiata-304\/\">Valvola di ritegno flangiata 304<\/a> (swing type, 10K \/ 150#), or browse all <a href=\"https:\/\/ballvalves.tw\/it\/categoria-prodotto\/valvola-di-ritegno\/\">valvole di ritegno in acciaio inossidabile<\/a>.<\/p>\n<h2>Specifiche tecniche principali<\/h2>\n<table style=\"border-collapse:collapse;width:100%;margin:12px 0\">\n<tbody>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Tipo<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">Swing check valve (non-return valve), threaded<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Modello<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">SC<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Gamma di taglie<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">1\/2\u2033 \u2013 3\u2033<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Corpo<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">ASTM A351 CF8M \u2014 la versione fusa dell'acciaio inossidabile 316 \u2014 disponibile a magazzino; CF8 (304 fuso) su ordinazione<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Disco<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">Hinged swing disc, ASTM A351 CF8M<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Gaskets<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">PTFE<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Pressione di esercizio<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">200 WOG (200 psi)<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Test standard<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">API 598<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Fine connessione<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">Female PT (tapered) thread \u2014 in stock; NPT and PF made to order<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Installazione<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">Horizontal line, or vertical line with upward flow; flow in the direction of the arrow on the body<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Media<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">Water, oil, gas<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Applicazioni<\/h2>\n<ul>\n<li><strong>Pump discharge lines<\/strong> \u2014 stops backflow and reverse rotation after the pump shuts down.<\/li>\n<li><strong><a href=\"https:\/\/ballvalves.tw\/it\/applicazioni\/applicazione-nel-settore-del-trattamento-delle-acque\/\">Water and wastewater treatment<\/a><\/strong> \u2014 small-bore dosing, sampling and return lines.<\/li>\n<li><strong>Chemical feed and dosing lines<\/strong> \u2014 316 (CF8M) for corrosive media.<\/li>\n<li><strong><a href=\"https:\/\/ballvalves.tw\/it\/applicazioni\/applicazione-chimica-del-petrolio-e-del-gas\/\">Oil, gas and petrochemical<\/a> utility piping<\/strong> \u2014 small-bore process and utility lines.<\/li>\n<li><strong>Marine small-bore piping<\/strong> \u2014 the molybdenum in 316 improves resistance to chloride pitting.<\/li>\n<li><strong>HVAC chilled and hot water branch lines<\/strong> \u2014 low pressure drop on continuously running loops.<\/li>\n<li><strong>Compressed air and plant utility air<\/strong> \u2014 316 resists condensate corrosion.<\/li>\n<li><strong>Well, jet and booster pump discharge<\/strong> \u2014 protects the pump from reverse flow and pressure shock.<\/li>\n<\/ul>\n<p>For 2\u2033\u20134\u2033 flanged lines, see the <a href=\"https:\/\/ballvalves.tw\/it\/prodotto\/valvola-di-ritegno-flangiata-304\/\">stainless steel flanged check valve<\/a>; for quiet closing on pulsating flow, see the <a href=\"https:\/\/ballvalves.tw\/it\/prodotto\/valvola-di-ritegno-silenziosa\/\">valvola di ritegno silenziosa<\/a>.<\/p>\n<h2>Domande frequenti<\/h2>\n<p><b>Che cos'\u00e8 una valvola di ritegno a battente?<\/b> It lets fluid flow one way only. A hinged disc swings open with forward flow and drops shut when flow stops or reverses, so backflow is stopped automatically \u2014 no power or operator needed.<\/p>\n<p><b>Swing or silent check valve \u2014 which one do I need?<\/b> Choose the swing type for general lines where low pressure drop matters. Choose the spring-loaded <a href=\"https:\/\/ballvalves.tw\/it\/prodotto\/valvola-di-ritegno-silenziosa\/\">valvola di ritegno silenziosa<\/a> where water hammer is a concern, such as pump discharge with frequent stops \u2014 its spring closes the valve before flow fully reverses.<\/p>\n<p><b>Can it be installed vertically?<\/b> Yes \u2014 in a vertical line with upward flow, the disc still swings shut when flow reverses. Horizontal installation with the cap facing up is the most common arrangement. Do not install it in a vertical line with downward flow, and always match the arrow on the body to the flow direction.<\/p>\n<p><b>Di che materiale \u00e8 fatto il corpo?<\/b> Cast 316 stainless steel, grade ASTM A351 CF8M \u2014 corrosion-resistant for water, chemical and marine duty. A CF8 (cast 304) version is available made to order.<\/p>\n<p><b>Quali tipi di filettatura sono disponibili?<\/b> Female PT (tapered) threads are in stock, sizes 1\/2\u2033\u20133\u2033. NPT and PF can be made to order \u2014 tell us which standard your piping uses when you request a quote.<\/p>\n<p><b>Qual \u00e8 l'ordine minimo?<\/b> Nessun quantitativo minimo d'ordine: accettiamo ordini di qualsiasi entit\u00e0, compresi piccoli ordini di prova. Per gli ordini di piccole dimensioni, le spese di trasporto sono a carico dell'acquirente. Il pagamento avviene tramite bonifico bancario (T\/T): 30% alla conferma dell'ordine e 70% prima della spedizione.<\/p>","protected":false},"excerpt":{"rendered":"<p>A stainless steel swing check valve, threaded, in 316 (CF8M), rated 200 WOG and tested to API 598. The hinged disc swings open with forward flow and drops shut the moment flow stops or reverses \u2014 no power needed. Female PT threads in stock, sizes 1\/2\u2033\u20133\u2033; NPT and PF threads and a CF8 (cast 304) body made to order. Installs horizontally, or vertically with upward flow.<\/p>\n<p style=\"font-size: 14px;color: #666666\">ISO 9001 \u00b7 CE \u00b7 Produttore dal 1999<\/p>","protected":false},"featured_media":3969,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[78],"product_cat":[65],"product_tag":[],"class_list":["post-3844","product","type-product","status-publish","has-post-thumbnail","product_brand-yzng-trong","product_cat-check-valve","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","taxable","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/ballvalves.tw\/it\/wp-json\/wp\/v2\/product\/3844","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ballvalves.tw\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ballvalves.tw\/it\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ballvalves.tw\/it\/wp-json\/wp\/v2\/media\/3969"}],"wp:attachment":[{"href":"https:\/\/ballvalves.tw\/it\/wp-json\/wp\/v2\/media?parent=3844"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ballvalves.tw\/it\/wp-json\/wp\/v2\/product_brand?post=3844"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ballvalves.tw\/it\/wp-json\/wp\/v2\/product_cat?post=3844"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ballvalves.tw\/it\/wp-json\/wp\/v2\/product_tag?post=3844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}