{"id":3843,"date":"2025-10-17T09:15:10","date_gmt":"2025-10-17T01:15:10","guid":{"rendered":"https:\/\/ballvalves.tw\/?post_type=product&#038;p=3843"},"modified":"2026-10-08T09:13:13","modified_gmt":"2026-10-08T01:13:13","slug":"valvola-di-ritegno-silenziosa","status":"publish","type":"product","link":"https:\/\/ballvalves.tw\/it\/product\/silent-check-valve\/","title":{"rendered":"Stainless Steel Silent Check Valve \u2013 Spring Loaded, Non-Slam, 304, 1\/2\u2033\u20132\u2033"},"content":{"rendered":"<div style=\"display: flex;flex-wrap: wrap;align-items: stretch;gap: 12px;margin: 18px 0\"><a style=\"display: block;min-width: 230px;flex: 1 1 calc(33.333% - 8px);padding: 17px 19px;background: #f3f8fd;border: 1px solid #c7dcef;border-left: 5px solid #1261a0;border-radius: 9px;color: #17324d!important;text-decoration: none;cursor: pointer\" href=\"https:\/\/ballvalves.tw\/wp-content\/uploads\/2025\/10\/1PC-Check-Valve-1.pdf\" target=\"_blank\" rel=\"noopener\"><span style=\"display: inline-block;margin-right: 10px;padding: 6px 9px;background: #1261a0;color: #ffffff!important;border-radius: 5px;font-size: 12px;font-weight: bold;letter-spacing: .5px\">PDF<\/span><strong style=\"color: #17324d!important;font-size: 17px\">1 valvola di ritegno<\/strong><span style=\"display: block;margin-top: 10px;color: #5d7185!important;font-size: 13px\">A molla \u00b7 Scheda tecnica delle dimensioni <strong style=\"color: #1261a0!important\">Scarica il PDF \u2193<\/strong><\/span><\/a><\/div>\n<h2>Descrizione del prodotto<\/h2>\n<p>L'SC-1 \u00e8 una valvola di ritegno silenziosa monoblocco, commercializzata anche come valvola di ritegno a molla o valvola di ritegno in linea. Una molla in acciaio inossidabile spinge il pistone in posizione di chiusura <i>prima<\/i> flow fully reverses, so the valve shuts quietly instead of slamming and puts far less shock on pumps and pipes when the pump stops. The one-piece body is compact enough for tight spaces around pumps and manifolds.<\/p>\n<p>Il corpo, il pistone e il cappuccio sono realizzati in acciaio inossidabile 304 fuso (CF8); su richiesta \u00e8 disponibile anche una versione in CF8M (316 fuso). Le filettature PT femmina sono disponibili a magazzino nelle misure da 1\/2\u2033 a 2\u2033; le filettature NPT e PF possono essere realizzate su richiesta. Preferite una valvola a disco incernierato con una caduta di pressione inferiore? Consultate la <a href=\"https:\/\/ballvalves.tw\/it\/prodotto\/valvola-di-ritegno-filettata\/\">valvola di ritegno a battente in acciaio inossidabile<\/a>, oppure sfoglia tutti <a href=\"https:\/\/ballvalves.tw\/it\/categoria-prodotto\/valvola-di-ritegno\/\">valvole di ritegno in acciaio inossidabile<\/a>.<\/p>\n<h2>Silent (Spring) o Swing: quale valvola di ritegno scegliere?<\/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\">Silenzioso \/ controllo molla (questa valvola)<\/th>\n<th style=\"border:1px solid #dddddd;padding:8px;text-align:left\">Controllo dell'oscillazione<\/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\">Una molla chiude il pistone prima che il flusso si inverta completamente (senza urto)<\/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<\/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\">Pi\u00f9 in alto \u2014 la molla si trova nel percorso del flusso<\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">Basso \u2014 il disco non entra in contatto con la canna<\/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\">Scarico della pompa e tubazioni soggette a colpi d'ariete<\/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<\/tr>\n<\/tbody>\n<\/table>\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\">Valvola di ritegno silenziosa \u2014 monoblocco, a molla (valvola di ritegno in linea \/ a molla)<\/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-1<\/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 2\u2033<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Corpo, pistone e tappo<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">CF8 \u2014 la versione fusa dell'acciaio inossidabile 304 \u2014 disponibile a magazzino; CF8M (316 fuso) su ordinazione<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Primavera<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">SS304 (SS316 nella versione 316)<\/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\">Filettatura PT femmina \u2014 disponibile a magazzino; filettature NPT e PF su ordinazione<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #dddddd;padding:8px\"><b>Edilizia<\/b><\/td>\n<td style=\"border:1px solid #dddddd;padding:8px\">Corpo monoblocco, ingombro ridotto (faccia a faccia)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Applicazioni<\/h2>\n<ul>\n<li><strong>Pump discharge lines<\/strong> \u2014 the spring closes the valve before reverse flow builds, which reduces slam and pressure surge when the pump trips.<\/li>\n<li><strong>Municipal water supply and booster pump stations<\/strong> \u2014 quiet, fast-closing check duty on clean water.<\/li>\n<li><strong>HVAC and high-rise booster systems<\/strong> \u2014 silent closing in mechanical rooms next to occupied space.<\/li>\n<li><strong>Cooling-water loops<\/strong> \u2014 clean water only; not for media with suspended solids.<\/li>\n<li><strong>Pump skids and tight manifolds<\/strong> \u2014 the short one-piece body fits where a swing check will not.<\/li>\n<li><strong>Vertical lines with upward flow<\/strong> \u2014 the spring closes the valve, so it does not rely on gravity.<\/li>\n<li><strong>Small-bore, low-pressure water distribution lines<\/strong> \u2014 1\/2\u2033\u20132\u2033 threaded connections.<\/li>\n<li><strong><a href=\"https:\/\/ballvalves.tw\/it\/applicazioni\/applicazione-nel-settore-del-trattamento-delle-acque\/\">Water treatment plants<\/a><\/strong> \u2014 clean-water lines and pump discharge, not sludge.<\/li>\n<\/ul>\n<p>Where slam noise is not a concern and the line is horizontal, the <a href=\"https:\/\/ballvalves.tw\/it\/prodotto\/valvola-di-ritegno-filettata\/\">valvola di ritegno a battente in acciaio inossidabile<\/a> is the lower-cost option; 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>.<\/p>\n<h2>Domande frequenti<\/h2>\n<p><b>Perch\u00e9 si chiama valvola di ritegno silenziosa?<\/b> Because it closes quietly. The spring pushes the piston shut before flow fully reverses, so very little backflow builds up to slam the valve. That greatly reduces the bang often heard when a swing check valve shuts after a pump stops.<\/p>\n<p><b>\u00c8 la stessa cosa di una valvola di ritegno a molla o di una valvola di ritegno in linea?<\/b> S\u00ec \u2014 \"valvola di ritegno silenziosa\", \"valvola di ritegno a molla\" e \"valvola di ritegno in linea\" sono denominazioni diverse per lo stesso modello: un pistone caricato a molla all'interno di un corpo diritto monoblocco.<\/p>\n<p><b>Valvola di ritegno silenziosa o a battente: quale mi serve?<\/b> Choose this silent type for pump discharge and lines prone to water hammer. Choose the <a href=\"https:\/\/ballvalves.tw\/it\/prodotto\/valvola-di-ritegno-filettata\/\">swing check valve<\/a> where low pressure drop matters more \u2014 its disc swings fully clear of the bore.<\/p>\n<p><b>Di che materiale \u00e8 fatto?<\/b> Il corpo, il pistone e il cappuccio sono realizzati in acciaio inossidabile 304 (CF8) fuso, con una molla in acciaio inossidabile 304 \u2014 disponibile a magazzino. La versione in acciaio inossidabile 316 (getti CF8M, molla in acciaio inossidabile 316) viene realizzata su ordinazione.<\/p>\n<p><b>Quali tipi di filettatura sono disponibili?<\/b> Female PT threads are in stock, sizes 1\/2\u2033\u20132\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> No minimum order quantity \u2014 we accept orders of any size, including small trial orders.<\/p>","protected":false},"excerpt":{"rendered":"<p>A stainless steel silent check valve (spring check valve), one-piece, in cast 304 (CF8) \u2014 the spring closes the piston before flow reverses, which reduces slam and pressure surge when the pump stops. Female PT threads in stock, sizes 1\/2\u2033\u20132\u2033; NPT and PF threads and a 316 (CF8M) version made to order. The compact one-piece body fits tight spaces.<\/p>\n<p style=\"font-size: 14px;color: #666666\">ISO 9001 \u00b7 CE \u00b7 Manufacturer since 1999 \u00b7 Made in Taiwan<\/p>","protected":false},"featured_media":3975,"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-3843","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\/3843","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\/3975"}],"wp:attachment":[{"href":"https:\/\/ballvalves.tw\/it\/wp-json\/wp\/v2\/media?parent=3843"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ballvalves.tw\/it\/wp-json\/wp\/v2\/product_brand?post=3843"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ballvalves.tw\/it\/wp-json\/wp\/v2\/product_cat?post=3843"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ballvalves.tw\/it\/wp-json\/wp\/v2\/product_tag?post=3843"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}