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margin-left: 16px;\n margin-right: 16px\n }\n\n [lang=fi] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a {\n font-size: 15px\n }\n\n [lang=pl] .features .welcome_desc p {\n font-size: 24px\n }\n\n @media only screen and (max-width:1199px) {\n .topbar {\n border-bottom: none\n }\n }\n\n @media only screen and (max-width:767px) {\n .language-select .dropdown-menu {\n left: 0;\n right: auto;\n height: 70vh\n }\n\n .newsletter-content .default-section-heading h3 {\n font-size: 28px;\n line-height: 32px;\n padding-bottom: 18px\n }\n }\n <\/style>\n<script async src=\"https:\/\/www.googletagmanager.com\/gtag\/js?id=G-5WHCGWBZF2\"><\/script><script defer>\n function gtag() {\n dataLayer.push(arguments)\n }\n window.dataLayer = window.dataLayer || [], gtag(\"js\", new Date), gtag(\"config\", \"G-5WHCGWBZF2\"), gtag(\"config\", \"AW-10818223058\")\n <\/script><script defer>\n function gtag_report_conversion_1(n) {\n return gtag(\"event\", \"conversion\", {\n send_to: 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src=\"\/\/v4-upload.goalsites.com\/728\/image_1637133592_Manual-valve.jpg?imageView2\/1\/w\/80\/h\/80\/format\/webp\" alt=\"Valvola manuale\">\n<\/div> <span>Valvola manuale<\/span>\n <\/a> <\/div>\n <div class=\"col-lg-4 col-md-4 col-sm-6 col-xs-12 col-12 sub_item\"> <a href=\"https:\/\/it.covna-china.com\/products\/control-valve.html\">\n <div class=\"sub_item_img\"> <img src=\"\/\/v4-upload.goalsites.com\/728\/image_1644645247_%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20220212134243.png?imageView2\/1\/w\/80\/h\/80\/format\/webp\" alt=\"Valvola di controllo\">\n<\/div> <span>Valvola di controllo<\/span>\n <\/a> <\/div>\n <div class=\"col-lg-4 col-md-4 col-sm-6 col-xs-12 col-12 sub_item\"> <a href=\"https:\/\/it.covna-china.com\/products\/actuator.html\">\n <div class=\"sub_item_img\"> <img src=\"\/\/v4-upload.goalsites.com\/728\/image_1644647212_%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20220212142632.jpg?imageView2\/1\/w\/80\/h\/80\/format\/webp\" alt=\"Attuatore\">\n<\/div> 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Le sue parti di apertura e chiusura sono piastre di cancello. La direzione di movimento della piastra del cancello \u00e8 perpendicolare alla direzione del fluido. Il mezzo \u00e8 tagliato da un cancello a lama di coltello che pu\u00f2 tagliare materiali in fibra. La piastra del cancello ha due superfici di tenuta. Le due superfici di tenuta della valvola a saracinesca pi\u00f9 comunemente usata formano w<\/p> <a class=\"read-more-btn\" href=\"https:\/\/it.covna-china.com\/article\/features-of-knife-gate-valve.html\">Leggi di pi\u00f9 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/it.covna-china.com\/article\/what-is-electric-control-valve.html\" title=\"Cos'\u00e8 la valvola di controllo elettrica?\"> <img class=\"lazy\" alt=\"Cos'\u00e8 la valvola di controllo elettrica?\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1629961935_logo.jpg?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>Ottobre 24, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/it.covna-china.com\/article\/what-is-electric-control-valve.html\" title=\"Cos'\u00e8 la valvola di controllo elettrica?\">Cos'\u00e8 la valvola di controllo elettrica?<\/a> <\/h4>\n <p>La valvola di controllo elettrica \u00e8 una valvola ad azionamento idraulico con un'elettrovalvola come valvola di guida. Viene spesso utilizzato per il controllo automatico nell'approvvigionamento idrico e nei sistemi di drenaggio e industriali. La risposta del controllo \u00e8 precisa e veloce e il sistema di tubazioni viene aperto e chiuso a distanza in base ai segnali elettrici per realizzare il funzionamento remoto. Pu\u00f2 sostituire la valvola a saracinesca e la valvola a farfalla per grandi operazioni elettriche<\/p> <a class=\"read-more-btn\" href=\"https:\/\/it.covna-china.com\/article\/what-is-electric-control-valve.html\">Leggi di pi\u00f9 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/it.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\" title=\"La differenza tra valvola pneumatica e valvola elettrica\"> <img class=\"lazy\" alt=\"La differenza tra valvola pneumatica e valvola elettrica\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1629961935_logo.jpg?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>Ottobre 24, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/it.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\" title=\"La differenza tra valvola pneumatica e valvola elettrica\">La differenza tra valvola pneumatica e valvola elettrica<\/a> <\/h4>\n <p>Una valvola pneumatica \u00e8 una valvola azionata da aria compressa. Quando si acquistano valvole pneumatiche, \u00e8 solo necessario specificare le specifiche, i tipi e le pressioni di esercizio per soddisfare i requisiti di acquisto. fluire. La differenza tra la valvola pneumatica e l'elettrovalvola \u00e8 la differenza nella sorgente del segnale. L'elettrovalvola utilizza l'elettricit\u00e0 per controllare il gas pilota per spingere il nucleo della valvola a cambiare terribile<\/p> <a class=\"read-more-btn\" href=\"https:\/\/it.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\">Leggi di pi\u00f9 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/it.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\" title=\"Quali sono i vantaggi della valvola a saracinesca?\"> <img class=\"lazy\" alt=\"Quali sono i vantaggi della valvola a saracinesca?\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1630029199_t-video.jpg?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>Settembre 07, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/it.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\" title=\"Quali sono i vantaggi della valvola a saracinesca?\">Quali sono i vantaggi della valvola a saracinesca?<\/a> <\/h4>\n <p>1. Piccola resistenza al flusso. Il canale medio all'interno del corpo valvola \u00e8 dritto, il mezzo scorre in linea retta e la resistenza del flusso \u00e8 piccola. 2. \u00c8 pi\u00f9 laborioso durante l'apertura e la chiusura. Rispetto alla valvola a globo, perch\u00e9 se \u00e8 aperta o chiusa, la direzione di movimento del cancello \u00e8 perpendicolare alla direzione del flusso del mezzo. 3. L'altezza \u00e8 grande e l'apertura e la chiusura ti<\/p> <a class=\"read-more-btn\" href=\"https:\/\/it.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\">Leggi di pi\u00f9 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/it.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\" title=\"Conosci la differenza tra elettrovalvola ed elettrovalvola?\"> <img class=\"lazy\" alt=\"Conosci la differenza tra elettrovalvola ed elettrovalvola?\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1630029164_about_icon2.png?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>Settembre 07, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/it.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\" title=\"Conosci la differenza tra elettrovalvola ed elettrovalvola?\">Conosci la differenza tra elettrovalvola ed elettrovalvola?<\/a> <\/h4>\n <p>1. L'elettrovalvola ha eccellenti prestazioni anti-perdite, si apre e si chiude rapidamente e ha una bassa potenza. \u00c8 adatto per l'uso come cut-off in alcune tubazioni chimiche come corrosione e tossicit\u00e0; le valvole elettriche sono utilizzate principalmente per la regolazione del flusso delle tubazioni e sono normalmente installate nell'alimentazione dell'aria e nella refrigerazione. L'uscita dell'aria della tubazione pu\u00f2 essere utilizzata anche nelle tubazioni liquide ed \u00e8 ampiamente utilizzata nelle canne<\/p> <a class=\"read-more-btn\" href=\"https:\/\/it.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\">Leggi di pi\u00f9 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/it.covna-china.com\/article\/what-is-the-function-of-the-electric-gate-valve.html\" title=\"Qual \u00e8 la funzione della valvola a saracinesca elettrica?\"> <img class=\"lazy\" alt=\"Qual \u00e8 la funzione della valvola a saracinesca elettrica?\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1637137206_electric-3-piece-weld-ball-valve-300x300.png?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>Settembre 07, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/it.covna-china.com\/article\/what-is-the-function-of-the-electric-gate-valve.html\" title=\"Qual \u00e8 la funzione della valvola a saracinesca elettrica?\">Qual \u00e8 la funzione della valvola a saracinesca elettrica?<\/a> <\/h4>\n <p>La valvola a saracinesca elettrica \u00e8 una valvola ampiamente utilizzata, che viene utilizzata principalmente nella regolazione analogica del flusso medio in sistemi liquidi, gassosi ed eolici ed \u00e8 il controllo AI. Nel controllo di valvole di grandi dimensioni e sistemi eolici, le valvole elettriche possono essere utilizzate anche per il controllo dell'interruttore a due posizioni. Il principio di funzionamento della valvola a saracinesca elettrica \u00e8 che la valvola a saracinesca elettrica \u00e8 solitamente collegata da un attuatore elettrico e la valvola, un<\/p> <a class=\"read-more-btn\" href=\"https:\/\/it.covna-china.com\/article\/what-is-the-function-of-the-electric-gate-valve.html\">Leggi di pi\u00f9 >><\/a>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"col-lg-12 col-md-12 col-12 pagination-box wow fadeInUp\">\n <nav aria-label=\"Page navigation example\"><ul class=\"pagination\">\n<li class=\"active\"><a href=\"javascript:void(0);\">1<\/a><\/li>\n <li><a href=\"https:\/\/it.covna-china.com\/articles\/valves-study\/2.html\">2<\/a><\/li>\n <li><a href=\"https:\/\/it.covna-china.com\/articles\/valves-study\/3.html\">3<\/a><\/li>\n <li><a href=\"https:\/\/it.covna-china.com\/articles\/valves-study\/4.html\">4<\/a><\/li>\n <li><a href=\"https:\/\/it.covna-china.com\/articles\/valves-study\/5.html\">5<\/a><\/li>\n <\/ul><\/nav>\n<\/div>\n 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0;\n margin-left: .5rem\n }\n\n [dir=rtl] ._tags-tab_13kno_350 .tab-nav .tab-link {\n margin-right: 0;\n margin-left: .5rem\n }\n <\/style>\n<section id=\"_section-links_1k55i_757\"><div class=\"_container_1k55i_128\">\n <div class=\"_tags-box_13kno_350 _center_1k55i_505\">\n <h4 class=\"_section-title_1k55i_500\">Link correlati<\/h4> <a href=\"https:\/\/it.covna-china.com\/dlp\/electric-valve.html\">valvola elettrica<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/solenoid-valve.html\">elettrovalvola<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/pneumatic-valve.html\">valvola pneumatica<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/electric-gate-valve.html\">valvola a saracinesca elettrica<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/electric-butterfly-valve.html\">valvola a farfalla elettrica<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/motorized-valve.html\">valvola motorizzata<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/pneumatic-knife-gate-valve.html\">valvola a saracinesca pneumatica a coltello<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/ball-valve.html\">valvola a sfera<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/gate-valve.html\">Saracinesca<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/butterfly-valve.html\">valvola a farfalla<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/globe-valve.html\">valvola a globo<\/a>\n <\/div>\n <\/div>\n 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